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NF ZM2371, Инструкция по эксплуатации

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1.4    Principle of Operation 

 

 

1-5

 

ZM2371/ZM2372

 

 

Oscillator 

The oscillator generates sine-wave signals having exact frequencies by means of a direct 
digital frequency synthetic method based on the reference clock of crystal oscillator. 
When the Automatic Level Control (ALC) function is effective, the main processor adjusts 
automatically the signal level so that the voltage and current monitored values become the 
specified values. 
 

 

Impedance Bridge 

The current flowing in the DUT is converted into the voltage by the range resistance and 
differential amplifier. At this time, the potential between L

CUR

 and L

POT 

terminals is 

maintained to almost zero by automatic balancing motion of the bridge. Accordingly, the 
current that runs away to the ground through capacitance to earth and insulation resistance 
and is not detected can be reduced. 
The voltage applied to the DUT is detected by the differential amplifier. 
After that, the voltage signal and current signal are converted into digital values by the A/D 
converter, and sent to the main processor. 
 

Содержание ZM2371

Страница 1: ...NF Corporation LCR METER ZM2371 ZM2372 Instruction Manual...

Страница 2: ......

Страница 3: ...LCR METER ZM2371 ZM2372 Instruction Manual DA00026021 007...

Страница 4: ...ments and LabVIEW are registered trademarks of National Instruments Corporation in the United States Other company names and product names used in this Instruction Manual may be trademarks or register...

Страница 5: ...serious injury This symbol contains information to avoid such risk CAUTION Equipment handling could result in minor or moderate injury or property damage This symbol contains information to avoid suc...

Страница 6: ...e operations available for each panel screen part Read while operation the device 4 ADVANCED OPERATIONS This chapter describes even further the device operation 5 REMOTE CONTROL This chapter describes...

Страница 7: ...nts connect it to an earth ground so that ground resistance is 100 or less Check the power supply voltage This product operates on the power supply voltage indicated in Grounding and Power Supply Conn...

Страница 8: ...refer him her to the instruction manual Warning Symbol This symbol indicates information for the avoidance of a hazard such as electric shock that may endanger human life or cause serious injury duri...

Страница 9: ...3 4 Connection of DUT 3 13 3 4 1 Measurement Terminals 3 13 3 4 2 Connection to DUT 3 14 3 4 3 Precautions on Connection 3 15 3 5 Basic Operations 3 17 3 5 1 Outline of Measurement Screen 3 17 3 5 2...

Страница 10: ...Controller 5 3 5 1 2 2 Preparation of ZM2371 ZM2372 5 4 5 1 2 3 USB Device Identification 5 4 5 1 3 Outline of RS 232 5 5 5 1 3 1 Preparation of Controller 5 5 5 1 3 2 Preparation of ZM2371 ZM2372 5 5...

Страница 11: ...7 1 5 Measured Value Display in Case of Error 7 7 7 2 When the Device Appears to be a Problem 7 8 8 MAINTENANCE 8 1 8 1 Introduction 8 2 8 2 Daily Maintenance 8 2 8 3 Storage Repacking and Transportat...

Страница 12: ...rrection 3 51 Figure 3 9 Installation of standard for LOAD correction 3 55 Figure 4 1 Output of comparator result 4 7 Figure 4 2 Range setting and comparison when sorting into bins 4 11 Figure 4 3 Equ...

Страница 13: ...Initialization contents of comparator 4 10 Table 4 2 Handler interface signal layout 4 15 Table 4 3 Functions of handler interface signal 4 16 Table 5 1 Responses to interface messages 5 14 Table 5 2...

Страница 14: ...1 1 ZM2371 ZM2372 1 OUTLINE 1 OUTLINER 1 1 1 1 Features 1 2 1 2 Applications 1 2 1 3 List of Functions 1 3 1 4 Principle of Operation 1 4...

Страница 15: ...equency 1kHz 4 terminal contact check standard for ZM2372 Not provided for ZM2371 It can detect a contact failure of all measurement terminals to prevent a measurement error Triggered drive A signal i...

Страница 16: ...mparator Primary parameter comparison Bin upper lower limits deviation Secondary parameter comparison upper lower limits Bin extension 14 ZM2372 only Handler interface ZM2372 only Beeper Limit compari...

Страница 17: ...ure 1 1 Block Diagram Main Processor According to the user s operation the main processor controls the oscillator and impedance bridge to calculate the vector ratio from the voltage signal and current...

Страница 18: ...values Impedance Bridge The current flowing in the DUT is converted into the voltage by the range resistance and differential amplifier At this time the potential between LCUR and LPOT terminals is ma...

Страница 19: ...USE 2 1 2 1 Checking Before Use 2 2 2 2 Installation 2 4 2 2 1 General Precautions for Installation 2 4 2 2 2 Installation Conditions 2 4 2 2 3 Rack Mounting 2 5 2 3 Grounding and Power Supply Connect...

Страница 20: ...is device must only be serviced by an engineer who has a thorough understanding of risk prevention Contents of CD ROM supplied Application software Main settings of ZM2371 ZM2372 acquisition and displ...

Страница 21: ...ator clip test lead ZM2391 3 terminal alligator clip test lead 2325AL Kelvin clip test lead large sized clip 2325AM Kelvin clip test lead medium sized clip ZM2392 Kelvin clip test lead 2326A Test lead...

Страница 22: ...g cloth as they may cause the surface finish to deteriorate tarnish or come off 2 2 2 Installation Conditions Install ZM2371 ZM2372 in a location that fills the following temperature and humidity requ...

Страница 23: ...support the ZM2371 ZM2372 Otherwise ZM2371 ZM2372 may fall causing a human injury CAUTION When mounting the device on the rack be sure to install rack rails to support the ZM2371 ZM2372 Otherwise ZM2...

Страница 24: ...e four feet Caution When mounting on the rack install angles or shelf on the rack to support the body Do not hold the device by the rack mount metal fittings only Do not use the removed feet screws an...

Страница 25: ...face of body Remove four feet Caution When mounting on the rack install angles or shelf on the rack to support the body Do not hold the device by the rack mount metal fittings only Do not use the rem...

Страница 26: ...ack mount mm rack Note 1 Surface treatment Rack mount adapter Paint Ultra light gray Munsell 6 OPB9 2 0 1 Caution When mounting on the rack do not hold only the rack mount adapter Make sure that the r...

Страница 27: ...ck mount inch rack Note 1 Surface treatment Rack mount adapter Paint Ultra light gray Munsell 6 OPB9 2 0 1 Caution When mounting on the rack do not hold only the rack mount adapter Make sure that the...

Страница 28: ...t is within the power voltage range of the specifications Otherwise the ZM2371 ZM2372 may be damaged ZM2371 ZM2372 operates with the following commercial power supply Power voltage range 100 to 230VAC...

Страница 29: ...measured result The measured value may vary depending on the connection method or whether open and short are corrected or not and accordingly an error due to these factors should be taken into conside...

Страница 30: ...ecommended to conduct a performance test before using it for an important measurement or test If the performance test dose not produce satisfying results NF Corporation will make the necessary adjustm...

Страница 31: ...en 3 17 3 5 2 Basic Key Operations 3 18 3 5 3 Simplified Operating Method When You Use Instrument for the First Time 3 21 3 5 4 Initialization 3 25 3 5 5 Setting of Measurement Parameters 3 26 3 5 5 1...

Страница 32: ...ne RANGE Auto Hold and measurement range SPEED FAST MED SLOW etc AVERAGE Averaging count TRIG SOURCE INT MAN EXT etc CORRECTION Op OPEN Sh SHORT Ld LOAD Cable length 0m 1m 2m 4m Register keys 0 9 Numb...

Страница 33: ...d to these features are not provided In the figures the description about these features is expressed with a dashed line or outline characters When a schematic view of front panel or rear panel is sho...

Страница 34: ...the power socket after checking that the power voltage is within the specified range for the ZM2371 ZM2372 Otherwise ZM2371 ZM2372 may be damage Make sure that the power switch is set to OFF before co...

Страница 35: ...me Also all lamps light up During this time the self diagnosis is conducted If an error is found an error message is displayed For details 7 1 1 Errors at Power On If a serious error is found the devi...

Страница 36: ...All Settings At the power ON if backed up setting or correction value is faulty Faulty part is initialized 3 2 2 Displays and Indications at Power ON When operation mode is switched The settings and c...

Страница 37: ...O MED Trigger Trigger source INT MAN EXT BUS INT internal Trigger delay time 0 to 999 999 s 8ms Continuous start OFF ON ON OFF Contact check ZM2372 only Contact check OFF ON OFF Real time check OFF ON...

Страница 38: ...unction OFF ON OFF BIN1 sorting OFF ON ON BIN2 14 sorting OFF ON OFF Comparison of secondary parameter OFF ON ON Primary parameter upper limit value ON OFF 9 99999E 11 OFF ON 0 OFF No Limit Primary pa...

Страница 39: ...cluding the designation from handler interface Settings Correction values Both Settings Operation mode Mode 0 1 Mode 0 Remarks Initial values Set when device is shipped from factory or when full initi...

Страница 40: ...AVERAGE Averaging count setting menu _Pri_ Primary parameter selection menu Direct selection L C R Auto selection Disabled enabled _CKT_ Equivalent circuit selection menu Series Parallel Auto selectio...

Страница 41: ...tting menu Open correction common Format setting menu Correction value input menu _SHIFT_ LOAD Load correction menu Disabled enabled measurement Correction value measurement stop menu Format setting m...

Страница 42: ..._SHIFT_ SAVE Setting correction value memory save menu _SHIFT_ RECALL Setting correction value memory recall menu _SHIFT_ SYSTEM System setting menu Remote control interface setting menu USB check scr...

Страница 43: ...t connect them directly to the power lines of power outlet distribution board or inside a device Also do not apply voltage exceeding 42Vpk to the grounding Otherwise you may get a shock or the ZM2371...

Страница 44: ...he DUT can restrict variation of measured value In a simplified method place an insulating plate on the top surface of ZM2371 ZM2372 and measure the DUT on it The ZM2371 ZM2372 cannot measure the grou...

Страница 45: ...oise increasing the measurement error This error cannot be corrected by the cable length correction In a narrow measurement range the error can be reduced by the LOAD correction and it is therefore re...

Страница 46: ...ZM2371 ZM2372 case to the ground Using 3 pole power cord connect ZM2371 ZM2372 to the 3 ple power socket having a protective grounding contact so that the device is connected to the ground Unless gro...

Страница 47: ...equency Ls 1 23456 H Q 12 3456 1 0000k Hz A100m FAST256 Int OpShLd2m 0 00 1 00 Vc 1 2 3 4 Vdc Vrms or Arms Status main settings See below DC Bias Measurement signal level c Indicates ALC constant volt...

Страница 48: ...ight of character display In this state press any key and the secondary function of that key will operate If the secondary function operates once or the _SHIFT_ key is pressed again the SHIFT state is...

Страница 49: ...meter to which a numeric value can be entered the comments such as a range of settable values are displayed on the lower line of the setting menu The cursor is displayed by blinking the digit The foll...

Страница 50: ...l part input waiting state is cancelled EXIT operation With the setting menu if _ENTR_ EXIT key is pressed without setting or selecting a value one previous menu is returned However depending on the p...

Страница 51: ...cking of key lock and initialization can be omitted Unlock the key lock When the KEY LOCK lamp lights up first press the _SHIFT_ KEY LOCK keys to unlock the key lock In concrete terms after pressing t...

Страница 52: ...specify the equivalent circuit additionally Press the _CKT_ key to display the equivalent circuit selection menu see below and select Parallel suffix p or Series suffix s with a numeric key Automatic...

Страница 53: ...ting menu and select the frequency with a numeric key or set a numeric value Measurement signal level Press the _LEVEL_ key to display the measurement signal level setting menu and set the voltage Mea...

Страница 54: ...ual selection Hold can be switched Press the _SHIFT_ RANGE keys to display the measurement range setting menu see below and press a numeric key _0_ key or _1_ key to change the measurement range manua...

Страница 55: ...the measurement screen comes back Done The contents of settings and correction value memories are not initialized If the EXIT operation is performed without pressing the _1_ key the measurement screen...

Страница 56: ...function Primary parameter C Auto OFF Current setting 0 Auto OFF 1 ON 2 L 3 C 4 R 5 Z 6 Y 7 G Options Auto OFF Disables automatic selection of measurement parameters ON Enables automatic selection of...

Страница 57: ...t is set or if automatic selection of equivalent circuit is disabled automatic selection of measurement parameter is disabled and the primary parameter secondary parameter and equivalent circuit at th...

Страница 58: ...ts up when automatic selection of equivalent circuit is enabled When the primary parameter is L C R Z or Y the equivalent circuit can be specified or its automatic selection function can be used Howev...

Страница 59: ...valent circuit unit S Rs Resistance Rs expressed with series equivalent circuit unit Rp Resistance Rp expressed with parallel equivalent circuit unit G Conductance Gp expressed with parallel equivalen...

Страница 60: ...Also Rdc may become a negative value due to a measurement error of voltage or current Parameters that can be selected by remote control only The following options can be selected by remote control on...

Страница 61: ...0000kHz Current setting 0 120 1 1k 2 10k 3 100k 4 Entry Options 120 120Hz 1k 1kHz 10k 10kHz 100k 100kHz Entry Displays the measurement frequency input menu to input a numeric value If a setting is mad...

Страница 62: ...00 V Current setting 0 010V to 5 00V Range of settable values The setting resolution is 3 digits 1mV when 100mV Though the value is a root mean square value unit Vrms it is simply displayed as V If a...

Страница 63: ...OFF 1 CV 2 CC 3 Current Options OFF Disables the ALC function CV and CC CV Enables the constant voltage function Voltage Measurement signal setting menu CC Enables the constant current function Curre...

Страница 64: ...at measurement range the measurement signal level is changed in a range of 10mVrms to 5Vrms to adjust to the specified voltage or current CAUTION With the constant voltage function enabled if the DUT...

Страница 65: ...ed value or data output may be overflow Measureable range Approximate range in which the measurement is possible The measurement may be possible even outside the range given above depending on the mea...

Страница 66: ...e _SHIFT_ RANGE Press the _SHIFT_ RANGE keys to display the measurement range setting menu Auto Manual Current range Min output impedance RANGE Manual 1k Rd 25 Current setting 0 DOWN 1 UP 100m to 1M 2...

Страница 67: ...e capacitance exceeding 150 F at 120Hz are measured the signal settling time can be reduced if the output impedance is set to 5 When setting the output impedance to 5 beware of the following points If...

Страница 68: ...trigger setting menu set the trigger source and measurement sequence a Continuous drive b Triggered drive c When measuring DC resistance Figure 3 5 Measurement sequence Trigger signal Measurement sign...

Страница 69: ...fer to the description of TRG and GET Delay Displays the trigger delay setting menu S Sync Displays the triggered drive setting menu Select a trigger source or perform the EXIT operation to return to...

Страница 70: ...determined by the following two factors 1 Time constant determined by ZM2371 ZM2372 output impedance or maximum drive current and capacitance of DUT 2 ZM2371 ZM2372 internal settling time The ZM2371 Z...

Страница 71: ...hat the drive signal does not overlap the disturbance from other ZM2371 ZM2372 can be reduced Press the _SHIFT_ TRIG MODE keys to display the trigger setting menu and select S Sync with a numeric key...

Страница 72: ...cycles 1kHz 2ms 1 cycle 5ms 4 cycles 25ms 24 cycles 121ms 120 cycles 501ms 500 cycles 10kHz 3ms 5ms 25ms 122ms 502ms 100kHz 3ms 5ms 25ms 122ms 502ms Conditions Measurement range hold Trigger delay ti...

Страница 73: ...1 to 75ms 5 The measurement range of DC resistance is automatically selected unless the range is held by remote control The adjustment time of measurement range varies depending on the DC resistance...

Страница 74: ...PEN Indicates the OPEN correction is enabled Blank when disabled Sh SHORT Indicates the SHORT correction is enabled Blank when disabled Ld LOAD Indicates the LOAD correction is enabled Blank when disa...

Страница 75: ...correction menu Lower limit or spot OFF ON Format OPEN Correction OFF 100 Hz FRMT Cp G Current setting 0 OFF 1 ON 2 Measure 3 SPOT NEXT Options first page 4 LowFREQ 5 FRMT 6 Entry PREV Options second...

Страница 76: ...on ON However when measured value 1k the following warning message is displayed Warning Out of range Same warning message is also displayed when the measurement failed by any reason Even if this warni...

Страница 77: ...lect Low FREQ with the _4_ key to display the correction lower limit frequency setting menu shown below Lower Frequency 100Hz Current setting 1mHz to 1kHz Range of settable values Set the lowest frequ...

Страница 78: ...ange from the specified lower limit frequency to the maximum frequency The spot correction value is not used for correction ON Enables the spot correction The correction value is measured with current...

Страница 79: ...ncy Following the set format of spot OPEN correction value the spot OPEN correction value is displayed The above screen shows an example of FRMT Cp G The frequency displayed at the lower right of scre...

Страница 80: ...r limit or spot OFF ON Format SHORT Correction OFF 100 Hz FRMT Ls Rs Current setting 0 OFF 1 ON 2 Measure 3 SPOT NEXT Options first page 4 LowFREQ 5 FRMT 6 Entry PREV Options second page OFF Disables...

Страница 81: ...o displayed when the measurement failed by any reason Even if this warning message is displayed the ZM2371 ZM2372 use the obtained measured value as SHORT correction value However the previous SHORT c...

Страница 82: ...y Following the set format of spot SHORT correction value the spot SHORT correction value is displayed The above screen shows an example of FRMT Rs X The frequency displayed at the lower right of scre...

Страница 83: ...T to specify the format and then select Entry to set a correction value and finally select ON The operation of LOAD correction is executed with the LOAD correction menu _SHIFT_ LOAD Press the _SHIFT_...

Страница 84: ...range was changed the LOAD correction should be made again Also set the measurement speed averaging count and trigger delay time under which the measurement can be executed stably First press the _SH...

Страница 85: ...Running 9 ABORT The measurement of LOAD correction value can be aborted by pressing the _9_ key Upon successful completion of LOAD correction value measurement the LOAD correction is enabled and the...

Страница 86: ...ormat Following the set format of spot LOAD correction value the spot LOAD correction value is displayed The above screen shows an example of FRMT Cp D The frequency displayed at the lower right of sc...

Страница 87: ...error Particularly for the LCUR and LPOT cables the cables having same specified characteristics and length should be used The cable length correction is operated with the cable length correction menu...

Страница 88: ...nnecting to the Part handler Handler Interface 4 15 4 5 Changing the Contents Displayed on the Second Line of Measurement Screen Auxiliary Display 4 22 4 6 Saving Recalling the Setting and Correction...

Страница 89: ...eraging function is disabled OFF If the averaging count is set to 2 to 256 the averaging function is enabled ON _SHIFT_ _SPEED_ AVERAGE The current averaging count is displayed on the second line in m...

Страница 90: ...e Deviation Measured value Reference value DEV Displays the deviation from the reference value Deviation Measured value Reference value Reference value 100 REF Display the reference value setting menu...

Страница 91: ...REF Display the reference value setting menu of secondary parameter Select one of ABS DEV or DEV as the display format with the numeric key To display the deviation or deviation previously set the re...

Страница 92: ...is changed from the one of deviation and deviation into the other of original measured value as is for both primary and secondary parameters To display the deviation or deviation previously set the gi...

Страница 93: ...ower limit one set of secondary parameter are being set The limit comparison function is not made into effect through the panel Once the limit comparison function is made into effect independent of th...

Страница 94: ...eter are passed OUT OF BINS Either or both of primary and secondary parameters is failed initial value S NG Primary parameter is acceptable but secondary parameter is failed However when the correct v...

Страница 95: ...s the primary parameter deviation comparison menu for comparator CLEAR Displays the comparator initializing menu LIMIT Displays the comparator upper lower limit setting menu L U Appears when primary o...

Страница 96: ...ison Reference value for format deviation comparison Deviation ABS REF 1 23456 F Current setting 0 ABS 1 DEV 2 DEV 3 REF Options ABS Conducts the comparison according to the original measured values I...

Страница 97: ...ivalent to 3 03H for original measured value Deviation is 2 equivalent to 3 06H for original measured value 3H Initializing the setting of comparator To newly set the upper lower limit value of compar...

Страница 98: ...ble Lower limit value Upper limit value Sec OFF Lo 10 0000 Hi 100 000m Current setting 0 0000p to 999999M Range of settable values Move the cursor to the point of parameter you need to set mentioned l...

Страница 99: ...led lower limit upper limit BIN2 enabled upper limit lower limit BIN14 enabled upper limit lower limit Secondary parameter enabled lower limit upper limit BIN1 enabled Pressing the _BS_ PREV key cause...

Страница 100: ...comparison for LO IN HI for that Bin is not conducted and the DUT is not sorted into that Bin When such setting is made that the comparison for all Bins 1 to 14 of primary parameter is not conducted t...

Страница 101: ...ress the _1_ key to select the BEEPER and the beeper setting menu is displayed BEEPER OFF Current setting 0 OFF 1 FAIL 2 PASS Options OFF Disables the beeper Beep sound stops FAIL Allows the beep to s...

Страница 102: ...N4 S HI 32 OUT BIN5 S IN 8 OUT BIN6 S LO 33 OUT BIN7 I 9 OUT BIN8 34 OUT BIN9 10 OUT BIN10 35 OUT BIN11 11 OUT BIN12 NC 36 OUT BIN13 PHI 12 OUT BIN14 PLO 37 OUT OUT OF BINS 13 OUT INDEX 38 OUT EOM 14...

Страница 103: ...rison signal BIN14 are output in IN Primary secondary total place of PHI and PLO pass comparison signal Also for the limit comparison NC ERR OUT OF BINS signal where IN is reversed and S NG S HI or S...

Страница 104: ...d Output characteristics Output low level 0 5V max Power voltage 5V Sink current 6mA 1 2 V max Power voltage 12V Sink current 8mA 2 4 V max Power voltage 24V Sink current 10mA Output high level 5 to 2...

Страница 105: ...to high level not output EOM INDEX Fixed to low level always output The output immediately after power turned on is the same as above as well Also the same state is established by the initializing ope...

Страница 106: ...e back _SHIFT_ _3_ HANDLER Setting OUT OF BINS output in case of S NG You can select whether or not S NG outside the range of secondary parameter should be regarded as auxiliary BIN AUX BIN independen...

Страница 107: ...t which of rising edge and falling edge of trigger signal is used to start measurement Polarity setting menu of trigger input signal is as follows TRIG Polarity Negative Current setting 0 Negative 1 P...

Страница 108: ...igh order Pin 29 Pin 4 RCL4 MSB RCL0 LSB RCL VALID VLD v 0 High level 1 Low level KEY_LOCK LOCK k 0 High level 1 Low level Dummy output signal Select the each option with the numeric key the following...

Страница 109: ...initial value A100k FAST100 Int OpShLd1m ex Pri Limit Lower and upper limit values of primary parameter specified Bin 10 970 000nF to 1 03000 F ex Specify the Bin number in the Bin number input menu S...

Страница 110: ...371 ZM2372 Select the Pri Limit and the Bin number input menu is display Set the Bin number whose upper lower limit value you need to display BIN No 14 Current setting 1 to 14 Range of settable values...

Страница 111: ...the _SHIFT_ RECALL keys to display the setting correction value memory recall setting menu RECALL Setting Current settable 0 to 31 Correction Both range to be saved Enter the target to be recalled an...

Страница 112: ...fter the target is changed into correction by pressing the _ _ key the target can be changed into both Meanwhile when the target is correction the target can return to the setting by additionally pres...

Страница 113: ...tting 0 OFF 1 ON 2 Real time Options OFF Disables the contact check initial value ON Enables the contact check Detects the contact failure immediately before measuring the impedance Real time Display...

Страница 114: ...FF during normal impedance measurement a Contact check operation timing b Contact check circuit Figure 4 6 4 terminal contact check If the contact is normal unnecessary signal can not be applied in th...

Страница 115: ...real time check does not enable the contact failure of HCUR terminal to be detected in case of measurement frequency 0 1Hz It is possible to detect in case of approx 100k or less in impedance If the i...

Страница 116: ...in normal operation it is regarded as contact failure Also when measurement signal gets an error due to the damaged drive signal source HCUR it is afrade to be regarded as the contact failure Always...

Страница 117: ...s output However it is unable to turn on when triggered drive is enabled BIAS Voltage Display the DC bias voltage input menu Press the ON OFF or perform EXIT operation and the measurement screen comes...

Страница 118: ...is achieved after charging discharging continues in a certain level the convergence may occur for the settling time Tstl s which is determined by the time constant that is the output impedance Rd and...

Страница 119: ...ment of the low frequency or small impedance increase the capacitance of C1 and C2 In the high frequency and high impedance case the load correction is useful In case of measurement of the large capac...

Страница 120: ...ernal power is connected with DUT in parallel insert the choke coil having excessively higher impedance than that of DUT through the external power in series It is impossible to make an OPEN correctio...

Страница 121: ...e example of measurement taken at 1kHz or more in frequency C1 20 F Film capacitor C2 4 7 F Film capacitor Increase the impedance of L1 excessively higher than that of DUT The external power should be...

Страница 122: ...OCK keys Restoring function from Remote into Local panel operation with the press _LOCAL_ key KEY LOCK lamp The KEY LOCK lamp of front panel lights up while the key operation is being disabling KEY LO...

Страница 123: ...splay the initializing menu INITIALIZE 1 Execute Option Done Completion message Press the _1_ key and select the Execute and the current setting and correction value return to the initial values After...

Страница 124: ...LL and the following fully initialization setting menu is displayed INITIALIZE ALL 1 Execute Option Done Completion message Perform the EXIT operation to return to one previous menu If _1_ key is pres...

Страница 125: ...STEM Displays the system setting menu _ _ _2_ _3_ _0_ _0_ Displays the operation mode setting menu _0_ key Select the Mode 0 Initial value If the operation mode is set same initial state as when fully...

Страница 126: ...error the Pass message appears for a short time and the measurement screen comes back It is impossible to interrupt this diagnosis function _SHIFT_ _EXP_ SYSTEM If there is an error the following erro...

Страница 127: ...tem setting menu SYSTEM setting 4 VERSION PREV Option third page Press the _4_ key to select the VERSION and the version of ZM2371 ZM2372 is displayed VERSION V1 00 2009 4 21 15 34 VERSION Date of fin...

Страница 128: ...Precautions on Use of GPIB 5 10 5 1 4 4 Basic Specifications of GPIB 5 11 5 1 5 Precautions on Communication 5 12 5 2 Switching between Remote State and Local State 5 13 5 3 Response to Interface Mess...

Страница 129: ...es cannot be used at the same time The setting of remote control interface is made from the system setting menu _SHIFT_ SYSTEM Press the _SHIFT_ SYSTEM keys to display the system setting menu SYSTEM s...

Страница 130: ...the USB USBTMC Universal Serial Bus Test and Measurement Class This driver is included in the hardware products or software products of respective companies that supply the VISA library The user who d...

Страница 131: ...notation SN Serial Number 9083251 example which indicates 7 digit serial number uniquely assigned to each device Perform the EXIT operation to return to one previous menu 5 1 2 3 USB Device Identifica...

Страница 132: ...CR LF 5 1 3 2 Preparation of ZM2371 ZM2372 If RS 232 is selected with the remote control interface setting menu the RS 232 setting menu is displayed as shown below Go to the sub menu for setting RS 2...

Страница 133: ...not be performed due to the restrictions of cable For high speed communication a short cable having low capacitance should be used Message terminator A terminator indicating the termination is requir...

Страница 134: ...even with the cable connected to TxD RxD and GND only However binary data cannot be transferred Also effective speed may be lowered HARD Hardware handshake RTS CTS The communication is controlled with...

Страница 135: ...d For the hardware handshake RTS and CTS are required To utilize the hardware handshake use the interlink cable Figure 5 1 b For cross or reverse connection a type in which adjacent pins 7 and 8 are c...

Страница 136: ...ng operation is different When the ZM2371 ZM2372 receives a command via RS 232 it goes in the remote state and the operation from the panel is disabled Press the _LOCAL_ key to return to the local sta...

Страница 137: ...eturn to one previous menu If the GPIB address is set the result is displayed for a moment and one previous menu comes back Message terminator A terminator indicating the termination is required at th...

Страница 138: ...ker Serial Poll and talker cancel function by listener addressed provided Talk Only function not provided L4 Basic Listener function and listener cancel function by talker addressed provided Listen On...

Страница 139: ...ted until the program message terminator is reached are all dumped Error queuing The number of error messages that can be retained is maximum 16 If exceeding this capacity 16th error message changes t...

Страница 140: ...is switched to the local state except when local is locked out Or send the GTL command from the controller or return the REN line to false so that the local state can be set If the GPIB cable is disco...

Страница 141: ...ion and execution of a command Clears the output queue and clears the bit 4 MAV of status byte register Releases the overlap command queuing by WAI OPC and OPC commands Releases the trigger waiting st...

Страница 142: ...ster ESR Standard Event Status Register Query Queries the standard event status register contents IDN Identification Query Queries the device identification information model name etc OPC OPC Operatio...

Страница 143: ...te1 LIMit FAIL Queries primary parameter comparison result CALCulate1 LIMit LOWer DATA Primary parameter BIN1 lower limit value CALCulate1 LIMit LOWer STATe Enables primary parameter BIN1 lower limit...

Страница 144: ...T3 PAGE Auxiliary display item FETCh subsystem FETCh Query of latest measured data FORMat subsystem FORMat DATA Measured data transfer format INITiate subsystem INITiate CONTinuous Continuous starting...

Страница 145: ...Mediate AMPLitude Constant current level SOURce FREQuency CW Measurement frequency SOURce RESistance LIMit LOW Minimum output impedance SOURce VOLTage ALC STATe Enables constant voltage drive SOURce V...

Страница 146: ...LIMit STATe STATe FORMat AUTO STATe CALCulate1 CKIT AUTO STATe FORMat LIMit CLEar FAIL LOWer DATA STATe STATe UPPer DATA STATe MATH EXPRession NAME STATe CALCulate2 FORMat LIMit CLEar FAIL LOWer DATA...

Страница 147: ...STATe OPEN STATe SHORT STATe SPOT STATe STATe FIMPedance APERture MODE CONTact VERify 1 RVERify 1 RANGe AUTO UPPer FRESistance RANGe AUTO UPPer FUNCtion CONCurrent ON SOURce CURRent ALC STATe LEVel I...

Страница 148: ...inning of a command character string is omissible arbitrarily S Y S T K L O C 1 1 Set current path to root Omissible 2 SYSTem subsystem command SYSTem is a root command 3 SYSTem subsystem attached KLO...

Страница 149: ...ords Keywords shown in square brackts indicate the implicit keywords and are omissible The device performs same operation if all or part of implicit keyword is omitted or even if not omitted at all In...

Страница 150: ...ess otherwise specified individually a numeric value in any format is accepted and it is rounded to the nearest value if exceeding the specified resolution Unless otherwise specified individually a nu...

Страница 151: ...the serial pole ESE mask ESE Description Sets queries the standard event status enable register Parameters mask numeric value range 0 255 Out of range value causes an error For details 5 7 3 Standard...

Страница 152: ...ommands is completed By monitoring the status the completion of command execution can be known Response 1 1 is returned when the execution of all the preceding commands is completed Query example OPC...

Страница 153: ...s not zero SAV memory number Description Saves the currently used setting to the specified setting memory Parameters memory number numeric value range 0 31 Out of range value causes an error Setting e...

Страница 154: ...FETCh TST Description Queries the self diagnosis results ZM2371 ZM2372 conducts self t diagnosis and returns its result Response numeric value format NR1 range 0 3 0 Pass no abnormality is found 1 Ha...

Страница 155: ...late COMParator AUXBin Description Sets queries whether S NG primary parameter is within the range but secondary parameter is out of range is used as auxiliary bins AUX_BIN independent from OUT OF BIN...

Страница 156: ...r result is IN Setting example CALC COMP BEEP COND FAIL Sets so that the beeper sounds when the comparator result does not fall in BIN1 BIN14 Response FAIL PASS Query example CALC COMP BEEP COND Respo...

Страница 157: ...meters when the bin sorting is executed by the comparator function This format is common to the display format of primary parameters Parameters ABS Compares absolute value original measured value DEV...

Страница 158: ...imit value is 1 23456E 05 CALCulate COMParator PRIMary BIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 STATe ON OFF 1 0 CALCulate COMParator PRIMary BIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 STATe Description Sets qu...

Страница 159: ...d Setting example CALC COMP SEC LIM OFF 0 01 Sets the lower limit value of secondary parameters to no limit and the upper limit value to 0 01 Response lower limit value upper limit value OFF numeric v...

Страница 160: ...f either limit comparison function of primary parameters or secondary parameters is enabled the comparator operation changes from bin sorting to limit comparison The limit comparison function cannot b...

Страница 161: ...lection of measurement parameter Setting example CALC FORM AUTO ON Sets to enables the automatic selection of measurement parameter Response 1 0 Query example CALC FORM AUTO Response example 1 The aut...

Страница 162: ...e and admittance Setting example CALC1 FORM CS Sets the primary parameter to the capacitance expressed with series equivalent circuit Response Z Y R RP RS G C CP CS L LP LS REAL MLIN Query example CAL...

Страница 163: ...arameters used for limit comparison Parameters lower limit value numeric value range 0 1E 16 to 9 99999E 11 MAX MIN can be used Setting example CALC1 LIM LOW 1 23456E 06 Sets the lower limit value of...

Страница 164: ...is not executed Bin sorting is restricted The comparator result is displayed on the panel and also the comparator result is output to the handler interface When the primary parameter limit comparison...

Страница 165: ...meters DEV Deviation Deviation from reference value measured value reference value is displayed PCNT Deviation Deviation to reference value is displayed with percent value Setting example CALC1 MATH E...

Страница 166: ...ts the secondary parameter to D Response Q D PHAS X B RS RP G LP RDC IMAG REAL Query example CALC2 FORM Response example D The secondary parameter is dissipation factor D Remarks Equivalent circuit as...

Страница 167: ...ondary parameters used for limit comparison Parameters lower limit value numeric value range 0 1E 16 to 9 99999E 11 MAX MIN can be used Setting example CALC2 LIM LOW 1 23456E 06 Sets the lower limit v...

Страница 168: ...ing is not executed Bin sorting is restricted The comparator result is displayed on the panel and also the comparator result is output to the handler interface When the secondary parameter limit compa...

Страница 169: ...and further set so that the deviation is displayed using CALCulate2 MATH STATe ON command Set the referenced value with DATA DATA command Parameters DEV Deviation Deviation from reference value measu...

Страница 170: ...t to MON No influence for others Setting example CALC3 MATH STAT ON Sets auxiliary display to the voltage current monitor CALCulate4 MATH STATe ON OFF 1 0 Description Sets whether the voltage monitor...

Страница 171: ...f primary parameters REF2 Sets queries reference value for deviation display comparison of secondary parameters BUF1 Queries the measured data buffer 1 BUF2 Queries the measured data buffer 2 BUF3 Que...

Страница 172: ...A FEED command For BUF3 primary parameter measured value and secondary parameter measured value For data transfer format FORMat DATA command comparator s bin sorting result numeric value format NR1 ra...

Страница 173: ...Limit comparison function is disabled 1 IN within the range of upper limit and lower limit 2 HI larger than upper limit 4 LO smaller than lower limit Query example1 DATA REF1 Response example1 1 23456...

Страница 174: ...er is recorded in the measured data buffer 1 Response CALC1 CALC2 Query example DATA FEED BUF1 Response example CALC1 The measured data recorded in the measured data buffer 1 is primary parameter DATA...

Страница 175: ...itten When the measured data are recorded by the amount of virtual size the status that indicates full is set 5 7 4 Operation Status For DATA DATA BUF1 BUF2 BUF3 the data by the amount of virtual size...

Страница 176: ...LIMit REFerence MONitor DISPlay WINDow TEXT3 PAGE Description Sets queries auxiliary display item Parameters STATus Measurement condition status BIN1 BIN14 Lower limit value and upper limit value of t...

Страница 177: ...ng The bin sorting result of comparator is not output The contents of respective data are as follows measurement status 0 No error 1 Either measurement error ERR ALC error ALC Err or correction error...

Страница 178: ...aller than lower limit Query example FETC Response example 0 3 14159E 06 1 20000E 02 2 When comparator function enabled C D measurement deviation not displayed ASCII format Measurement status 0 no err...

Страница 179: ...n multiple numeric values are transferred numeric values are separated with a comma At the end a message terminator for instance LF EOI is added Real number format The data is transferred in the 64 bi...

Страница 180: ...tent 1 digit integer indicating respective results 0 8 comparator s bin sorting result Number of characters 2 Content 2 digit integer indicating comparator s bin sorting result 00 16 primary parameter...

Страница 181: ...stopped and the device goes in the trigger waiting state whichever state the device is placed in at that time After that when the trigger is applied and one time measurement finished the measured dat...

Страница 182: ...mple AVER COUN Response example 100 The averaging count is 100 SENSe AVERage STATe ON OFF 1 0 SENSe AVERage STATe Description Sets queries whether the averaging is executed or not Set the averaging co...

Страница 183: ...Response GB CPG Query example CORR CKIT STAN1 FORM Response example GB The format of OPEN correction value is G B SENSe CORRection CKIT STANdard2 FORMat RX LSRS SENSe CORRection CKIT STANdard2 FORMat...

Страница 184: ...234 when the format is CSD Response primary parameter secondary parameter numeric value format NR3 Query example CORR CKIT STAN3 Response example 1 23456E 05 1 23400E 02 Standard value for LOAD correc...

Страница 185: ...table As this command is an overlap command if such program is made that OPC query is added at the end so as to receive the response message 1 the device can wait for the completion of correction Exam...

Страница 186: ...LOAD correction value correction primary parameter numeric value range 0 1E 16 9 99999E 11 correction secondary parameter numeric value range 0 1E 16 9 99999E 11 Actually set value follows the format...

Страница 187: ...ince it takes at least one period of signal for measurement at one frequency point if the lower limit frequency is lowered to 1Hz or less it will take much more time for correction It is better to rai...

Страница 188: ...onse 1 0 Query example CORR SHOR Response example 1 The SHORT correction is enabled SENSe CORRection SPOT STATe ON OFF 1 0 SENSe CORRection SPOT STATe Description Sets queries whether the OPEN correct...

Страница 189: ...measurement speed to fast MEDium Sets measurement time or measurement speed to standard value LONG SLOW Sets measurement time to long measurement speed to slow VSLOw Sets measurement time to longest m...

Страница 190: ...eck is enabled Remarks The contact check can be used for the ZM2372 only An error will occur for the ZM2371 SENSe FIMPedance CONTact RVERify ON OFF 1 0 SENSe FIMPedance CONTact RVERify Description Set...

Страница 191: ...IMPedance RANGe UPPer range SENSe FIMPedance RANGe UPPer Description Sets queries the measurement range The range is specified in impedance Parameters range numeric value range 100E 3 1 10 100 1E 3 10...

Страница 192: ...ce measurement range is enabled SENSe FRESistance RANGe UPPer range SENSe FRESistance RANGe UPPer Description Sets queries the DC resistance measurement range Parameters range numeric value range 100E...

Страница 193: ...ters 1 When only one measurement function is specified measurement function description FIMPedance Impedance measurement series equivalent circuit FADMittance Admittance measurement parallel equivalen...

Страница 194: ...nt Range The constant voltage function is automatically disabled if the constant current function is enabled When the constant current function is disabled the device operates following the setting of...

Страница 195: ...format NR3 Query example SOUR FREQ Response example 1 00000E 03 The measurement frequency is 100 00E 03 Hz 1kHz SOURce RESistance LIMit LOW resistance SOURce RESistance LIMit LOW Description Sets quer...

Страница 196: ...ich ALC automatic level control functions actually is limited For details 3 5 6 3 Measurement Range The constant current function is automatically disabled if the constant voltage function is enabled...

Страница 197: ...ether internal DC offset bias voltage is superimposed on the measurement signal Parameters ON 1 DC offset voltage is superimposed OFF 0 DC offset voltage is not superimposed The DC offset cannot be tu...

Страница 198: ...s mask numeric value range 0 65535 Out of range value causes an error Setting example STAT OPER ENAB 0 Sets so as to disable the occurrence of operation event Response numeric value format NR1 range 0...

Страница 199: ...the error queue Maximum 16 errors can be saved in the error queue If exceeding this capacity 16th error message changes to Queue overflow and error messages after that are dumped SYSTem KLOCk ON OFF...

Страница 200: ...emory Parameters memory number numeric value range 0 31 Out of range value causes an error SETTing Recalls the settings measurement conditions such as frequency CORRection Recalls the correction value...

Страница 201: ...02 s 20ms TRIGger IMMediate Description Applies the trigger to perform measurement once when the device waits for trigger An error will occur when the trigger source is INT or the device does not wait...

Страница 202: ...s byte register Service request enable register 7 6 5 4 3 2 1 0 Logical OR Logical OR Operation event register Operation event enable register Logical OR Standard event status register Standard event...

Страница 203: ...when master summary bits were all cleared to 0 ESB 5 32 When any valid bit of the standard event status register is set to 1 When all the valid bits of the standard event status register are set to 0...

Страница 204: ...to 1 when there is a syntax error in program code EXE 4 16 Execution error Set to 1 when parameters are set beyond possible range values or when settings are contradictory DDE 3 8 Device dependent er...

Страница 205: ...d Cleared to 0 upon powering on However the PON bit is set to 1 ESE ESE Sets queries the standard event status enable register Set to 0 to clear the enable register to 0 Cannot be cleared by any other...

Страница 206: ...t to 1 Figure 5 4 Operation status structure 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 15...

Страница 207: ...BUF1 8 256 BUF1 is full BUF1 becomes full CORR 7 128 Either OPEN SHORT or LOAD correction is being measured Correction measurement completed WARM 6 64 Always at 0 unused Always at 0 WTRG 5 32 Trigger...

Страница 208: ...n event register The event register is cleared to 0 if queried The event register can also be cleared with a CLS command Cleared to 0 upon powering on STATus OPERation ENABle STATus OPERation ENABle S...

Страница 209: ...ization RST Operation mode setting Idle ABORT INIT CONT ON state or INIT command Trigger waiting READ Trigger signal either of the followings 1 TRIG SOUR INT 2 In TRIG SOUR MAN TRIG key on the panel 3...

Страница 210: ...o handler interface Transmit INIT Device goes in trigger waiting state Transmit TRIG Trigger can also be applied from handler interface omitting this command Transmit FETC Query the latest measured va...

Страница 211: ...Sample Programs Sample programs that control the ZM2371 ZM2372 by combining typical program languages and respective interfaces of GPIB USB and RS 232 have been stored in the attached CD ROM For detai...

Страница 212: ...6 1 ZM2371 ZM2372 6 CHANGE OF OPERATION MODE 6 CHANGE OF OPERATION MODE 6 1 6 1 Outline and Switching of Operation Mode 6 2...

Страница 213: ...enu _SHIFT_ SYSTEM _SHIFT_ SYSTEM keys to display the system settings menu SYSTEM settings 0 INTERFACE 1 BEEPER NEXT Options first page Though no options are displayed in the system menu if _ _ _2_ _3...

Страница 214: ...7 1 Error Messages 7 2 7 1 1 Errors at Power ON 7 2 7 1 2 Errors at Panel Operation 7 3 7 1 3 Errors During Measurement 7 4 7 1 4 Errors in Remote Control 7 5 7 1 5 Measured Value Display in Case of...

Страница 215: ...nd if an error is found an error message as listed below is displayed on the initial screen Error message Content and Cause Corrective action ROM ERROR Internal memory ROM error Turn off the power onc...

Страница 216: ...the maximum output voltage about 7Vpeak because measurement signal level is large Reduce the signal level when large DC bias voltage is required LEVEL Over Measurement signal level setting was limited...

Страница 217: ...t be measured Perform usual measurement to check the condition where measurement failed and then remove a problem Timeout error As the measurement impossible state lasts for a long time the measuremen...

Страница 218: ...rect No detailed classification 200 Execution error Command cannot be executed No detailed classification 211 Trigger ignored Trigger was received but could not be executed 221 Settings conflict Comma...

Страница 219: ...buffer or output buffer due to occurrence of a problem can be cleared with the device clear DCL SDC which is one of the interface messages Though errors not listed here may occur according to the sit...

Страница 220: ...table range 2 Since the DUT has strong nonlinear voltage current characteristics the built in algorithm failed to adjust 3 Since the DUT parameter value varies repetitive adjustment failed to obtain t...

Страница 221: ...USB or GPIB the device cannot return to the local from the panel operation Return the device to local from the controller or disconnect the USB cable or GPIB cable Keys are deteriorated Please ask NF...

Страница 222: ...is not formed Common impedance coupling Do not ground outer conductor of connection cables If grounded noise current or a signal of adjacent LCR meter will flow in affecting the measurement Signals i...

Страница 223: ...apacitance between L terminal of DUT and ground to about 2000pF or less For large DUT or DUT having complex construction the capacitance to ground capacitance to shield may be very large Noise mixes i...

Страница 224: ...8 3 8 5 Checking Isolation 8 3 8 6 Checking the Contact Check Function 8 3 8 7 Performance Testing 8 4 8 7 1 Measurement Frequency Accuracy 8 4 8 7 2 Measurement Signal Level Accuracy 8 4 8 7 3 Volta...

Страница 225: ...andard capacitor 10pF 100pF 1nF 10nF 100nF 1 F whose capacitance and dissipation factor should be calibrated at 120Hz 1kHz 10kHz 100kHz Standard resistor 10m 100m 1 10 100 1k 10k 100k 1M 10M whose DC...

Страница 226: ...2371 ZM2372 and the earth terminal case at lower left Make sure that the voltage is within the range stated below When out of this range it might be possibly damaged HCUR vs Case 0 4 to 0 8V approx 0...

Страница 227: ...alize 3 5 4 Initialization _SHIFT_ INIT _1_ Key operation 8 7 1 Measurement Frequency Accuracy Connection HCUR terminal Frequency counter input Setting After the initializing operation _SHIFT_ INIT _1...

Страница 228: ...o need to connect inversely Setting After initializing the setting set the measurement frequency and measurement signal level according to the contents in table stated below Press the _AUX DISP_ key t...

Страница 229: ...After initializing the setting set the measurement frequency to 1kHz and the measurement signal level to 0 1Vrms Press the _BIAS_ key to display the DC Bias setting menu and turn on the DC Bias Set th...

Страница 230: ...n value of impedance is not provided at each frequency can make a simple test using the calculated values stated below Especially for the shunt resistor with a good frequency response the calculated v...

Страница 231: ...rence 100 B A A Specification B A 1M 1000pF C F C F C C 0 19 D D D D 0 0019 100k 0 01 F C F C F C C 0 18 D D D D 0 0018 10k 0 1 F C F C F C C 0 18 D D D D 0 0018 1k 1 F C F C F C C 0 18 D D D D 0 0018...

Страница 232: ...23 100m 100m Z Z Z Z 0 68 0 39 Measurement frequency 100kHz Measurement signal level 1 Vrms Cable length 0m Measurement range Standard nominal value Calibration value of standard A Measurement value...

Страница 233: ...e Standard Calibration value of standard A Measurement value B Difference ditto Specification 100k 100pF C F C F C C 0 29 D D D D 0 0029 10k 1000pF C F C F C C 0 19 D D D D 0 0019 Cable length 4m Meas...

Страница 234: ...standard resistance according to the contents in table shown below Directly connect the standard with the measurement terminal of LCR meter cable length 0m Evaluation If the measurement values are wit...

Страница 235: ...isfy the specification NF Corporation will make the necessary adjustment or calibration to recover the performance If calibration is necessary contact NF Corporation or one of our representatives You...

Страница 236: ...72 9 SPECIFICATIONS 9 SPECIFICATIONS 9 1 9 1 Specifications 9 2 9 2 External Dimensions 9 12 Supplementary value This value implies supplementary data of the product and it does not guarantee the prod...

Страница 237: ...requency 1mHz to 100kHz Resolution 5 digits 1mHz when 10Hz 0 01 Measurement signal level 10mV to 5 00V Resolution 3 digits 1mV when 100mV 10 5mV RMS value when output is open ALC Constant voltage driv...

Страница 238: ...ameter Rdc Signal acquisition time is the value subtracted by about 1ms from the above value DUT can be replaced immediately after the completion of signal acquisition After replacement of DUT the sig...

Страница 239: ...ms V Zr 1M 100k 20kHz Zr 100k 20kHz 10k 1k 100 Zr 10 1 Zr 100m 2 Level 5 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 3 2 1 3 1 Level 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 8 1 5 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1...

Страница 240: ...ncy Kz DC 0Hz Frequency 10kHz 0 05 Kc Zx 10kHz Frequency 100kHz 0 1 0 002 Frequency kHz Kc Zx Ky Residual admittance coefficient Frequency Ky DC Frequency 120Hz Zx 3 108 120Hz Frequency 100kHz Zx Freq...

Страница 241: ...05 0 50 0 06 1 0 14 0 05 0 40 0 06 0 30 0 02 0 20 0 02 0 25 0 02 0 35 0 02 0 60 0 03 0 70 0 08 0 90 0 10 100m 0 14 0 30 0 60 0 40 0 30 0 10 0 30 0 04 0 30 0 04 0 40 0 03 0 60 0 06 0 90 0 10 0 90 0 10...

Страница 242: ...sed for accuracy calculation may be obtained from 90 tan 1 1 Qx or 90 tan 1 Dx Parameter Measurement accuracy Y Az Lp Ls X Az Qx 10 Az sin x Qx 10 Cp Cs B Az Dx 0 1 Az sin x Dx 0 1 Rp Rs G Az Qx 0 1 A...

Страница 243: ...2 Pure L H and C F can be converted into Z by the following expression Z 2 Frequency Hz L H Z 1 2 Frequency Hz C F Approximate value can be read from the following graph Figure 9 2 LC Z conversion gra...

Страница 244: ...Original measured value Deviation Deviation can be sorted Beeper Sounds according to comparator result Pass Fail Off Handler interface Standard for ZM2372 Not provided for ZM2371 Signal isolation All...

Страница 245: ...800 9600 19200 38400 57600 115200 230400bps For the data rate exceeding 19200bps communication may fail depending on the characteristics of cable or controller Flow control None Software X ON X OFF Ha...

Страница 246: ...ity 5 to 95 RH Absolute humidity 1 to 29g m3 non condensing Warn up time 30 minutes Pollution degree 2 indoor use Settings correction value memory 32 sets Settings and correction values can be saved a...

Страница 247: ...ZM2371 External dimensions Side view Front view Rear view Warning labels on the cover When stand is used Surface treatment Front panel Plastic sheet Ultra light gray Munsell 6PB9 2 0 1 Rear panel Muns...

Страница 248: ...nal dimensions Side view Front view Rear view Warning labels on the cover When stand is used Surface treatment Front panel Plastic sheet Ultra light gray Munsell 6PB9 2 0 1 Rear panel Munsell 8 5PB2 6...

Страница 249: ...arranty period Failure due to the handling or storage that violates the operating methods or precautions given in the instruction manual Failure or damage caused by a fall or shock during transportati...

Страница 250: ......

Страница 251: ...ever we assume no responsibility for any damage regarding the contents of the instruction manual If you have any uncertainty or you found an error or omission please contact NF Corporation or one of o...

Страница 252: ......

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Страница 254: ...http www nfcorp co jp NF Corporation 6 3 20 Tsunashima Higashi Kohoku ku Yokohama 223 8508 JAPAN...

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