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4.6 Adjusting the LCD Backlight Brightness

CA5350

4-9

4.6 Adjusting the LCD backlight Brightness

LCD backlight brightness of

CA5350

can be adjusted in 3 stages including off. Turn it

off when light disturb the measurement, such as using in a dark room. Even it is turned
off, if the surrounding area is somewhat bright, you can see the display of LCD.

Select the Menu

BACKLIGHT

, and select from

(backlight off) to

(maximal). The bigger

the numerical value is, the brighter the backlight is.

B A C K L I G H T

I N T E N S I T Y

Summary of Contents for CA5350

Page 1: ...NF Corporation PROGRAMMABLE CURRENT AMPLIFIER CA5350 Instruction Manual...

Page 2: ......

Page 3: ...PROGRAMMABLE CURRENT AMPLIFIER CA5350 Instruction Manual DA00043807 003...

Page 4: ......

Page 5: ...y not meet derectives for CE Marking EMC and others Please confirm the CE Marking is affixed on the rear panel If using this equipment for the first time start from 1 OUTLINE 1 OUTLINE This chapter de...

Page 6: ...otective ground contact When using a three pin to two pin conversion adapter be sure to connect the grounding wire of the adapter to the grounding terminal next to the outlet Check the power supply vo...

Page 7: ...ause electric shock fire and breakdown Safety related symbols The general definitions of the safety related symbols used on this product and in the instruction manual are provided below Instruction Ma...

Page 8: ...takes special measures to reduce electromagnetic emissions to prevent interference to the reception of radio and television broadcasts Note on Waste Processing To protect the environment ensure that...

Page 9: ...ponse 2 15 2 5 Calibration 2 16 3 PANEL FEATURES AND BASIC OPERATIONS 3 1 3 1 Panel Component Names and Functions 3 2 3 1 1 Front panel 3 2 3 1 2 Rear panel 3 3 3 2 Display at Power ON and Initial Set...

Page 10: ...1 5 1 Preparations Before Use 5 2 5 1 1 Remote Control Interface Selection 5 2 5 1 2 Outline of USB 5 3 5 1 2 1 Preparation of Controller 5 3 5 1 2 2 Preparation of CA5350 5 3 5 1 2 3 USB Device Iden...

Page 11: ...7 4 Checking the Version Number 7 3 7 5 Performance Testing 7 4 7 5 1 Current suppression setting accuracy gain accuracy 7 5 7 5 2 Output offset voltage 7 6 7 5 3 DC bias voltage setting accuracy 7 6...

Page 12: ...units 2 12 Figure 3 1 Front panel 3 2 Figure 3 2 Rear panel 3 3 Figure 3 3 I O Terminals 3 6 Figure 3 4 Input terminal 3 7 Figure 3 5 Output terminal 3 7 Figure 3 6 Output polarity 3 7 Figure 3 7 DC...

Page 13: ...ent suppression setting range and resolution 4 3 Table 5 1 Responses to interface messages 5 7 Table 5 2 Status Byte 5 8 Table 5 3 Priority of Execution of Commands 5 9 Table 5 4 Header List 5 11 Tabl...

Page 14: ...CA5350 1 1 1 OUTLINE 1 1 Features 1 2 1 2 Applications 1 2 1 3 List of Functions 1 3 1 4 Principle of Operation 1 4...

Page 15: ...eed 0 7 s when 1M V A Stable with respect to the source capacitance Even when the source capacitance of 1000pF is added it operates stably without any concerns of oscillations Besides overshoot and ri...

Page 16: ...light control Brightness adjustment Gain I V gain Output amplifier gain Filter On Off Rise time manual automatic Current suppression On Off Auto Range Current value Voltage bias On Off Voltage value...

Page 17: ...RTING BIAS OUTPUT BIAS ANALOG UNIT INVERTING BIAS OUTPUT INVERTING OUTPUT CURRENT INPUT I V Amp Output Amp FILTER 20 ZERO CHECK Figure 1 1 Block Diagram ZERO CHECK It disconnects the input connection...

Page 18: ...ed signal component BIAS For sensors those require DC bias voltage bias source equipped that allows to output any DC voltage in the range of 8V to 8V resolution 0 001V will be useful SYSTEM CONTROLLER...

Page 19: ...l Precautions for Installation 2 3 2 2 2 Installation Conditions 2 3 2 2 3 Rack Mounting 2 4 2 3 Grounding and Power Supply Connection 2 13 2 4 Simplified Operation Check 2 15 2 4 1 Checking operation...

Page 20: ...heck that the device has not been damaged during transit After unpacking make sure that the contents listed in Table 2 1 Package Contents are supplied Table 2 1 Package contents CA5350 Main unit 1 Acc...

Page 21: ...chemical cleaning cloth as they may cause the surface coating to deteriorate tarnish or peel off 2 2 2 Installation Conditions Install CA5350 in a location that fills the following temperature and hum...

Page 22: ...ide proper air vents in the rack or install fans for forced convection inside the rack Besides when mounting other equipments above or below the product leave open space for 40 mm or more below CA5350...

Page 23: ...of case Air vents Surface treatment Rack mount adapter Ultra light gray Munsell 6 OPB9 2 0 1 CAUTION When mounting in the rack install angle bars or shelf in the rack to support the body Do not hold...

Page 24: ...9 2 0 1 CAUTION When mounting in the rack install angle bars or shelf in the rack to support the body Do not hold the device by the accessory rack mount adapter only When hold with shelf be careful ab...

Page 25: ...of case Air vents Surface treatment Rack mount adapter Ultra light gray Munsell 6 OPB9 2 0 1 CAUTION When mounting in the rack install angle bars or shelf in the rack to support the body Do not hold...

Page 26: ...9 2 0 1 CAUTION When mounting in the rack install angle bars or shelf in the rack to support the body Do not hold the device by the accessory rack mount adapter only When hold with shelf be careful ab...

Page 27: ...ove label on the side face of body Remove screws and feet from the bottom of body 4 places Remove label on the side face of body CAUTION When mounting in the rack install angle bars or shelf in the ra...

Page 28: ...to support the body Do not hold the device by the accessory rack mount metal fitting only Remove label on the side face of body Remove label on the side face of body Remove the cover mounting screws 1...

Page 29: ...TION When mounting in the rack install angle bars or shelf on the rack to support the body Do not hold the device by the accessory rack mount metal fitting only Remove label on the side face of body R...

Page 30: ...to support the body Do not hold the device by the accessory rack mount metal fitting only Remove label on the side face of body Remove label on the side face of body Remove the cover mounting screws 1...

Page 31: ...gory II Maximum power consumption is 40VA The power switch of CA5350 is located on the rear panel Make sure that the power switch is set to OFF before connecting the power cord After powering off the...

Page 32: ...sound Turn on the power after checking the setting of the power voltage selector switch Connect the power after checking that voltage of power socket is within the range of specified volage Otherwise...

Page 33: ...cket and do not use it unless the repair work is complete 2 4 2 Checking key operation and response With the following procedure check that keys and knob are working correctly 1 Without connecting any...

Page 34: ...necessary please contact NF Corporation or one of our representatives You will be liable for the costs of calibration or adjustment It is recommended to conduct a 7 5 Performance Testing before using...

Page 35: ...er ON 3 4 3 2 2 Initialization 3 5 3 3 I O Terminals 3 6 3 4 I O Connection 3 9 3 4 1 Connection of optical sensor etc photodiode 3 10 3 4 2 Connection with lock in amplifier etc 3 12 3 5 Operation Tr...

Page 36: ...nd Knobs MENU Display the top level menu EXIT Abort setting and display the one higher hierarchy menu ENTER Display the lower menu or confirm the setting items Scroll the menu or change the numerical...

Page 37: ...Off switch Pushing I side turns the power on pushing O side turns it off Power input Fuse holder Spare fuse is also stored in it GPIB connector USB connector Power voltage selector switch Certificatio...

Page 38: ...r 1 0 0 2 0 1 3 0 4 3 0 Version Last adjustment date After displaying this for about 1 second self check will be executed When an error is found the error message is displayed For details 6 1 1 Error...

Page 39: ...y No 1 9 are reset to the factory default state Table 3 1 Setting items and initial values list Setting items Parameter range Initial values LCD adjustment Backlight brightness 0 1 2 2 Input select In...

Page 40: ...C connecters and enclosure If this voltage is exceeded over rated value internal voltage limiter will become active and try to limit the voltage However if the applied voltage is too large the product...

Page 41: ...d Output terminal INVERTING OUTPUT Output terminal is provided in the front panel as well as the rear panel Since output impedance is 50 for each terminal supplementary value when load current is flow...

Page 42: ...minals and keep the other one open Maximum output current is 2mA as the total of both front panel and rear panel connectors INVERTING BIAS OUTPUT INVERTING BIAS OUTPUT 50 50 Figure 3 7 DC bias voltage...

Page 43: ...of CA5350 as far as possible Make the product installed in a place of as little vibration as possible When detecting weak signals it may be affected by microphonic noise generated due to vibration of...

Page 44: ...de and use the capacitor with sufficiently large electrostatic capacitance when it is needed for example about 0 1 F Arrange the current input and bias output cable keeping it flat as much as possible...

Page 45: ...f Volts is required dedicated power supply for bias voltage will be necessary CURRENT INPUT CA5350 INVERTING BIAS OUTPUT PMT Figure 3 10 Example of connection with a photomultiplier For either of conn...

Page 46: ...ommon mode noise may easily occur CA5350 CURRENT INPUT INVERTING OUTPUT INPUT Figure 3 11 When the signal source is grounded 2 When the signal source cannot be grounded When the signal source cannot b...

Page 47: ...lter setting menu ON Filter ON AUTO Auto filter MANUAL Manual setting RISE TIME Rise time OFF Filter OFF CURRENT SUPPRESSION Current suppression setting menu ON Current suppression ON AUTO Auto curren...

Page 48: ...ck REMOTE CONTROL Remote interface setting menu ADDRESS GPIB address setting RETURN TO LOCAL Return to local state from remote state UTILITIES System information display Firmware Version display Devic...

Page 49: ...direction will show the following display Even during various settings pressing the MENU key will cancel the settings and display the menu In the menu items currently selected underline _ indicating c...

Page 50: ...time after applying the settings Example When I V GAIN setting is 10k V A G A I N S I V S G A I N S 1 0 k V A When the keys or knob is operated G A I N S I V S G A I N S S S 1 G S V A Although 1G V A...

Page 51: ...pressing the ENTER key Connection with a sensor or source of signal Connect the input connector CURRENT INPUT in the front panel of CA5350 and sensor using a coaxial cable In the factory default sett...

Page 52: ...ettings will be reset as saved in memory No 1 CA5350 will be automatically reset to the settings you saved to memory NO 1 last time after turning the power on Initialize to the factory default state S...

Page 53: ...s ON input is disconnected from the internal amplifier Select ON or OFF with cursor and press the ENTER key to confirm the setting Turn ZERO CHECK OFF when amplifying signal from the sensor Note that...

Page 54: ...ct to I V GAIN Using the filter Select ON or OFF in the Menu FILTER F I L T E R S O N O F F In the above the current setting is OFF and cursor appears below ON Pressing the ENTER key in this state wil...

Page 55: ...h longer response time Setting to Auto Filter Selecting AUTO in the Menu FILTER ON AUTO will make filter settings corresponding to I V GAIN settings irrespective of the filter rise time set in the MAN...

Page 56: ...acitance of cables and sensor connected to current input terminal CURRENT INPUT becomes large rise time of I V amplifier will become large Larger longer is the rise time of I V amplifier and filter it...

Page 57: ...0 s 300 s 357 s 511 s 1ms 1 19ms 1 70ms 3ms 3 57ms 5 11ms 10ms 11 9ms 17 0ms 30ms 35 7ms 51 1ms 100ms 119ms 170ms 300ms 357ms 511ms Relation with frequency characteristics The longer the filter rise t...

Page 58: ...4 4 2 2 Automatically deciding the current value to be cancelled 4 4 4 3 Setting DC Bias Voltage 4 6 4 4 Saving Recalling the Settings 4 7 4 5 Self diagnosis 4 8 4 6 Adjusting the LCD Backlight Brigh...

Page 59: ...manual only and turning the output voltage of CA5350 to 0V if ZERO CHECK is turned OFF it will be possible to cancel the offset occurring in CA5350 For the CURRENT SUPRESSION 4 2 Cancelling the dark...

Page 60: ...000nA 8 000nA 0 001nA 1pA 80nA range 80 00nA 80 00nA 0 01nA 10pA 800nA range 800 0nA 800 0nA 0 1nA 100pA 8 A range 8 000 A 8 000 A 0 001 A 1nA 80 A range 80 00 A 80 00 A 0 01 A 10nA 800 A range 800 0...

Page 61: ...Automatically deciding the current value to be cancelled This function sets the range required for eliminating dark current from sensor and it automatically sets the current value It is used when sen...

Page 62: ...ar and auto current suppression will not run C U R R E N T S S U P P R E S S I O N S S A U T O S O V E R After making appropriate settings such as lowering I V GAIN change to the state where maximum i...

Page 63: ...Numerical value of the digit selected with underline cursor can be increased or decreased in one step by operating the keys or by operating the knob Changing the numerical value will immediately chan...

Page 64: ...ctory default settings are saved in advance Memory number 1 is especially used for saving the settings for the power on initialization of CA5350 CA5350 will recall the setting of memory number 1 autom...

Page 65: ...ntroller RAM ERROR Error of the main memory RAM of microcontroller NVRAM ERROR Error of nonvolatile memory where settings are saved in HARDWARE ERROR Overall circuit error Out of the aforementioned er...

Page 66: ...ncluding off Turn it off when light disturb the measurement such as using in a dark room Even it is turned off if the surrounding area is somewhat bright you can see the display of LCD Select the Menu...

Page 67: ...y each device of CA5350 from Menu UTILITIES IDENTIFICATION U T I L I T I E S S I D 7 6 5 4 3 2 1 Serial number is a 7 digit numerical value You can return to the previous menu by pressing the EXIT key...

Page 68: ...of GPIB 5 4 5 1 4 Precautions on Communication 5 5 5 2 Switching between Remote State and Local State 5 6 5 3 Response to Interface Message 5 7 5 4 Service Request and Status Byte 5 8 5 4 1 Service R...

Page 69: ...the over state of CA5350 The connectors of respective interface are located on the rear panel of the CA5350 5 1 1 Remote Control Interface Selection Either USB or GPIB can be used as an interface for...

Page 70: ...orporation P Product ID 0x3B hexadecimal notation 59 decimal notation Which indicates product number of CA5350 U T I L I T I E S A I D A 9 0 8 3 2 5 1 ID Which indicates 7 digit serial number uniquely...

Page 71: ...menu and the GPIB address setting menu as shown below is displayed R E M O T E a C O N T R O L a A D D R E S S a a 0 2 Press the EXIT key to return to one previous menu Message terminator There is no...

Page 72: ...Remote Local full functions provided PP0 Parallel Poll function not provided DC1 Device Clear full functions provided DT0 Device Trigger function not provided C0 Controller function not provided E1 O...

Page 73: ...terface sending the GTL command from the controller or making REN line to a logical false CA5350 will be back to local If the GPIB cable is disconnected the REN line becomes false and CA5350 will be b...

Page 74: ...istener and talker DCL SDC Device CLear Selected Device Clear Clear the input and output buffers and return to the setting immediately after the power on LLO Local LockOut Disables the transition from...

Page 75: ...al state 5 4 2 Status Byte Status Byte of CA5350 is as shown in Table 5 2 Status Byte Table 5 2 Status Byte Bit Contents Conditions for set 1 Conditions for reset 0 MSB 7 0 Not used 0 always 6 RQS Whe...

Page 76: ...old off setting 3 A LCD backlight brightness setting 4 I Input select 5 R Gain setting 6 W Output amplifier gain setting 7 V Voltage bias settings 8 B Voltage bias ON OFF 9 T Filter rise time setting...

Page 77: ...ixed point format It is a value that includes decimal point and decimal point is shown with period DD DD At the time of input reading zero or space is ignored When number before the decimal point is o...

Page 78: ...F Setting K 5 14 Saving Recalling Setting L 5 14 SRQ Mask Setting M 5 14 Current Suppression ON OFF N 5 15 Filter ON OFF P 5 15 I V Gain Setting R 5 15 Current Suppression Range and Current Setting S...

Page 79: ...nted at about 20 to the external cover shield of the CURRENT INPUT connector This function is used for checking whether there is current flowing from sensor or not When amplifying the sensor current s...

Page 80: ...e the input connector located on the front panel factory default settings I1 Use the input connector located on the rear panel Remarks Select the current input connectors of CA5350 J Self Check execut...

Page 81: ...0 Return the settings of CA5350 and memory No 1 to factory default settings L1 Copy the existing CA5350 settings into memory No 1 L2 Return the settings of CA5350 to the settings when power was turned...

Page 82: ...to 4 2 Cancelling the dark current of sensor P Filter ON OFF Description ON OFF setting of filter Setting P0 Filter OFF factory default setting P1 Filter ON Remarks Set filter rise time using T Comma...

Page 83: ...0 6 indicates range to be set Setting a value that out of the range to v will result in error Setting any number except the above to the second parameter will result in error Setting to auto range Sv...

Page 84: ...term Exponential part and mantissa of response message show the following according to the current suppression range Range Mantissa Exponential Part 8nA range 0 000 E 09 80nA range 00 00 E 09 800nA r...

Page 85: ...error 8 EOI and X Command Hold OFF Setting Refer to K command 9 SRQ mask Refer to M command 10 Current suppression ON OFF Refer to N command 11 Filter ON OFF Refer to P command 12 I V gain Refer to R...

Page 86: ...propriate Current value exceeding the range was set f Input current exceeds the range of current suppression g Auto current suppression performed when Zero Check was ON h Not used Always 0 I Error in...

Page 87: ...s 8 000 8 000 Setting unit is Volt and resolution is 1mV W Output Amplifier Gain 1 10 Description Output Amplifier gain setting Setting W0 Output Amplifier gain 1 factory default setting W1 Output Amp...

Page 88: ...he Un command There is no terminator when receiving the command When a command is received CR LF and EOI will also be read and discarded Z Auto Filter ON OFF Description Auto filter setting Setting Z0...

Page 89: ...4 _ UNT a b c d e f g h i j k l m n o MSG p q r s t u v w x y z DEL ACG UCG LAG TAG PCG SCG Note 1 MSG is Interface message TCT Take Control 2 b1 DIO1 b7 DIO7 DIO8 is not used LLO Local Lockout 3 Foll...

Page 90: ...UBLESHOOTING 6 1 Error Messages 6 2 6 1 1 Errors at Power ON 6 2 6 1 2 Errors at Panel Operation 6 3 6 1 3 Error during Operation 6 3 6 1 4 Errors in Remote Control 6 3 6 2 When the Device Appears to...

Page 91: ...message as listed below is displayed on the LCD Table 6 1 Error message list at Power ON Error message Content and Cause Corrective action ROM ERROR Internal memory ROM error Turn off the power once...

Page 92: ...on Error message Content and Cause Corrective action OVER TEMPERATURE Overheating is detected Current of amplifier is disconnected and signal is not output Settings cannot be made Remote control will...

Page 93: ...there is a local lockout LLO in GPIB you cannot return to local with panel operation Either operate the controller for go to local GTL or disconnect the GPIB cable Keys are deteriorated Please ask NF...

Page 94: ...7 2 7 3 Storage Repackaging and Transport 7 3 7 4 Checking the Version Number 7 3 7 5 Performance Testing 7 4 7 5 1 Current suppression setting accuracy gain accuracy 7 5 7 5 2 Output offset voltage...

Page 95: ...location of the damage and will execute repairs This instruction manual describes how to easily proceed with a performance testing For more accurate inspections adjustments calibration or repairs con...

Page 96: ...precautions when repackaging for transportation Cover the body with a sheet to protect the surfaces and ensure that fine dust does not get into the body Use a box having appropriate strength and enou...

Page 97: ...ce testing should be conducted in the following conditions Power voltage AC100V 120V 220V 240V 10 however 250V or less Ambient temperature 23 5C Ambient humidity 5 to 85 RH non condensing Warm up 30 m...

Page 98: ...it is normal Current suppression Amplifier gain Values indicated on DC voltmeter Specification Range Setting Gain V A Output amplifier gain 8nA 0 900nA 10G 1 8 490V 9 510V 5 33 30mV 8nA 0 000nA 10G 1...

Page 99: ...voltmeter Specification 30 s 20mV 20mV 20mV 3ms 10ms 7 5 3 DC bias voltage setting accuracy Connection Connect INVERTING BIAS OUTPUT Front to DC voltmeter to BNC cable Setting BIAS ON Measurement Meas...

Page 100: ...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 will...

Page 101: ...ession section 8 3 8 1 3 Amplifier section 8 3 8 1 4 Output section 8 4 8 1 5 DC bias voltage output section 8 4 8 1 6 General information 8 5 8 2 External Dimensions 8 7 Supplementary value This valu...

Page 102: ...ry value Gain setting V A Input impedance Remarks 10G 30k at 100Hz 1G 10k at 1kHz 100M 3k 10M 1k 1M 400 100k 300 10k 10 Recommended source resistance supplementary value Gain setting V A Recommended s...

Page 103: ...800 A range 0 6 of setting 0 15 of range Auto suppression Function for automatically selecting and setting the current value and current suppression range required for cancelling the input current whe...

Page 104: ...when no load Maximum output current 10mA Total current of front and rear connectors Output impedance 50 supplementary value Output offset voltage Less than 30mV When amplifier gain is 10G V A Less tha...

Page 105: ...on Maximum withstanding voltage between signal grounding and enclosure is 42Vpk DC ACpeak Input over detection Excessive signal is detected and displayed on LCD Over will detect the signal input over...

Page 106: ...y 5 to 95 RH Absolute humidity 1 to 29g m3 non condensing Pollution Degree 2 indoor use Warn up time 30 minutes Safety regulation EN61010 1 EN61010 2 030 EMC EN61326 1 Group 1 Class A EN61326 2 1 EN61...

Page 107: ...Dimensions CA5350 8 7 8 2 External Dimensions Figure 8 1 CA5350 External Dimensions Front view Rear view Top view Surface treatment Front panel Clear hairline silver Rear panel Matt gray Cover Light m...

Page 108: ...arged even within the warranty 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 sh...

Page 109: ...d reliable However 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 Corporati...

Page 110: ...http www nfcorp co jp NF Corporation 6 3 20 Tsunashima Higashi Kohoku ku Yokohama 223 8508 JAPAN Phone 81 45 545 8128...

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