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17

Calculate the corresponding settling time using the RC time constant 0.22 s:

settling time = ln(bias/settled value)*0.22 s
settling time = ln(5 VDC / 2 VDC)*0.22 s
settling time = 0.20 s

The ACV function should be selected after the signal is connected to the digital multimeter's ACV
input or when the signal has been connected, enough extra delay should be given to stabilize the
signal. If the DC bias remains the same, a completely accurate subsequent measurement can be made
without additional stabilization delay.
Step 1: Configure the test leads as shown below.

Step 2: Press the

button on the front panel to enter the ACV function interface.

Step 3: Range adjustment.
Press Range and select the range. Auto range (Auto) automatically selects the appropriate range for
measurement based on the input signal. The auto range is adjusted upwards to 110% of the existing
range and down to 10% of the existing range.

Step 4: AC Filter Selection.
The instrument offers three filter options consisting of 3Hz, 20Hz and 200Hz. The filter you choose
should be the highest filter which is less than the frequency of your test signal.

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Содержание 5490C Series

Страница 1: ...5490C Series 5 and 6 Digit Multimeters Models 5492C 5492CGPIB 5493C 5493CGPIB USER MANUAL ...

Страница 2: ...lectrical energy available and the voltage impulses that may occur on electrical conductors associated with these category ratings The category rating is a Roman numeral of I II III or IV This rating is also accompanied by a maximum voltage of the circuit to be tested which defines the voltage impulses expected and required insulation clearances These categories are Category I CAT I Measurement in...

Страница 3: ...nd conductor of the supplied three conductor AC line power cable The power cable must be plugged into an approved three conductor electrical outlet The power jack and mating plug of the power cable meet IEC safety standards Do not alter or defeat the ground connection Without the safety ground connection all accessible conductive parts including control knobs may provide an electric shock Failure ...

Страница 4: ...n office type environments Such environments may include rapid temperature or humidity changes sunlight vibration and or mechanical shocks acoustic noise electrical noise strong electric fields or strong magnetic fields Do not operate instrument if damaged If the instrument is damaged appears to be damaged or if any liquid chemical or other material gets on or inside the instrument remove the inst...

Страница 5: ... DC and AC voltages Do not attempt any service or adjustment unless another person capable of rendering first aid and resuscitation is present Do not insert any object into an instrument s ventilation openings or other openings Hazardous voltages may be present in unexpected locations in circuitry being tested when a fault condition in the circuit exists Fuse replacement Fuse replacement must be d...

Страница 6: ...rrent of the power supply without the wire overheating For continued safe use of the instrument Do not place heavy objects on the instrument Do not obstruct cooling airflow to the instrument Do not place a hot soldering iron on the instrument Do not pull the instrument with the power cord connected probe or connected test lead Do not move the instrument when a probe is connected to a circuit being...

Страница 7: ...ity This instrument meets the requirements of 2014 35 EU Low Voltage Directive and 2014 30 EU Electromagnetic Compatibility Directive with the following standards Low Voltage Directive EN 61010 1 2010 EMC Directive EN 61326 1 2013 ...

Страница 8: ...sition of the power switch when instrument is OFF Power standby The unit is not completely disconnected from the AC mains in off state Alternating current line Chassis earth ground symbol Ground terminal Protective earth ground CAUTION indicates a hazardous situation which if not avoided will result in minor or moderate injury WARNING indicates a hazardous situation which if not avoided could resu...

Страница 9: ...djustment 8 Front Panel Operation 9 3 1 Front Panel Menu Reference 9 3 2 Display 11 3 2 1 Change Display Mode 11 3 2 2 Display Label Text 12 3 2 3 Digit Mask 13 3 2 4 Probe Hold Function 13 3 2 5 Screen Capture and File Transfer 14 3 3 Basic Measurements 14 3 3 1 DC Voltage 14 3 3 2 DCV Ratio 16 3 3 3 AC Voltage 16 3 3 4 DC Current 18 3 3 5 AC Current 19 3 3 6 Resistance 2W 2 wire 21 3 3 7 Resista...

Страница 10: ...tting the buzzer and brightness 33 7 4 Setting the format of the digital display 33 Interface 34 8 1 RS232 interface 34 8 1 1 RS232 Interface Operation 34 8 2 USB Interface 37 8 2 1 USB Device 37 8 2 2 USB Host 37 8 3 LAN Interface 37 8 4 GPIB Interface 38 8 4 1 GPIB Bus 38 8 4 2 Setting the GPIB Address 40 8 4 3 General Bus Commands 40 8 4 4 Setting through the interface 40 Specifications 5492C 5...

Страница 11: ...ontrol interfaces This instrument supports SCPI commands The remote control interface ports include USB Device RS232 LAN and optional GPIB interface Model 5492CGPIB 5493CGPIB Readings and instrument settings Up to 10 000 readings can be stored in local mode Completed calibration The unit can be calibrated through a remote control interface 1 1 Operating Environment Power supply 110V 220V 10 Line f...

Страница 12: ...ything is missing please contact B K Precision 1 3 Product Dimensions Dimensions W H D 225mm 100mm 355mm Net weight Approximately 5 51 lbs 2 5 kg 1 4 Front Panel Overview Front Panel Description USB host port 4 3 inch LCD Main function keys Input terminals Power standby button Softkeys Null Screenshot key Shift Local key Rear panel input button on 6 digit models only 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 ...

Страница 13: ...input terminals 6 digit models only Cooling fan GPIB interface 5492CGPIB 5493CGPIB models only AC power input receptacle fuse box External Trigger BNC connector LAN interface USB interface RS232 interface Chassis ground 1 3 4 5 6 7 8 9 1 2 3 2 4 5 6 7 8 9 ...

Страница 14: ...e Before connecting to an AC outlet or external power source verify that the AC power cord including the extension line is compatible with the rated voltage current and that there is sufficient circuit capacity for the power supply Once verified connect the cable firmly The included AC power cord is safety certified for this instrument operating in rated range To change a cable or add an extension...

Страница 15: ...strument before proceeding Check and or Change Fuse Locate the fuse box next to the AC input connector in the rear panel Remove the fuse box as shown in Figure 2 2 AC Input Fuse Removal below Check and replace fuse if necessary Figure 2 2 AC Input Fuse Removal Any disassembling of the case or changing the fuse should be performed by an authorized service technician ...

Страница 16: ...ast blow fuse 2 3 Carrying Handle Adjustment To adjust the position grasp the handle on both sides of the instrument at the pivot point and rotate the handle to the desired position Be sure the handle locks in its new position Handle transport position Be sure the handle is locked in position and avoid twisting movements while transporting as the handle can damage and drop the instrument To remove...

Страница 17: ...2 1 10 100 Default 10 PLC Auto zero setting OFF or ON default ON ACV ACI To configure the ACV AC voltage Range Auto default 100mV 1V 10V 100V 750V Filter 3Hz slow speed 20Hz medium slow speed 200Hz fast medium and slow speed Default 20Hz filter medium speed Shift ACV ACI To configure the ACV AC current measurement Test terminal 3 A 10 A Range 3 A terminal 100uA 1mA 10mA 100mA 1A 3A auto range defa...

Страница 18: ...lt 10 Ω can be set separately Shift Cont diode Diode configuration Test voltage range 0 5V Test current 1 mA Buzzer ON default or OFF CAP MATH Capacitance measurement configuration Range Auto default 1nF 10F 100nF 1uF 10uF 100uF 1mF 10mF Shift CAP MATH Math zero calculation NULL you can set parameters dB dBm operation smoothing scal Mx b Percent Statistics Limit NULL PrtScn Mathematical zeroing ca...

Страница 19: ... display options Use the softkey to select the desired display mode Bar Meter The bar meter displays live measurements on a horizontal bar graph Press Auto Scale to automatically adjust the upper and lower limits or set the limits manually using Use the softkeys and directional keypad to adjust the Low High values The bar meter display mode can also enabled with Limit mode The upper and lower limi...

Страница 20: ...is set to Auto The Bin count can be changed manually to 10 20 40 100 200 or 400 When using manual Bins the high low bounds can be adjusted using the directional keypad When statistics are displayed in histogram mode the dark blue line in the middle represents the average and the outside blue lines represent on standard deviation from the average 3 2 2 Display Label Text Label text can be added to ...

Страница 21: ... 4 Probe Hold Function The probe hold function records and displays up to 8 stable measurements adding them to an on screen list To enable this function press Menu Display Probe Hold Probe Hold OFF ON In the probe hold settings the beeper can be enabled to output an audible beep when a stable reading is recorded and added to the list Note the screen capture function can be used to save the display...

Страница 22: ...ss Menu Utility Manage Files to access stored files Use the directional keypad to highlight the file to be transferred then press Copy Highlight the USB resource then press Paste to save a copy of the file 3 3 Basic Measurements 3 3 1 DC Voltage Step 1 Connect the input terminals as shown below Do not apply more than 1000 V peak to the input or it will damage the instrument Step 2 Press the button...

Страница 23: ...re accurate measurements but requires more test time With auto zero enabled the digital multimeter measures the offset once and subtracts the offset from all subsequently measured parameters This avoids the effect of the offset voltage on the input circuit of the digital multimeter on the measurement accuracy The DMM makes a new offset measurement each time you change the function range or integra...

Страница 24: ...re the 5490C Series for AC voltage measurements In order to get the most accurate measurement the corresponding RC time constant must be stable to 1 50 of the input AC signal level Signals greater than 300 V RMS or 1 A RMS can cause self heating of the signal conditioning components These errors are included in the instrument s specifications Internal temperature changes caused by self heating may...

Страница 25: ...urement can be made without additional stabilization delay Step 1 Configure the test leads as shown below Step 2 Press the button on the front panel to enter the ACV function interface Step 3 Range adjustment Press Range and select the range Auto range Auto automatically selects the appropriate range for measurement based on the input signal The auto range is adjusted upwards to 110 of the existin...

Страница 26: ...the 10 A terminal for current measurements greater than 3 A Step 2 Press on the front panel then press to select the DCI function and enter the DCI function interface Step 3 Range adjustment Select the input terminal for the test signal If you select 10 A input terminal there is only 10 A range If you select 3 A input terminal 100 uA 1 mA 10 mA 100 mA 1 A 3 A or Auto ranges are available Select th...

Страница 27: ...he offset from all subsequently measured parameters This avoids the effect of the offset voltage on the input circuit of the digital multimeter on the measurement accuracy The DMM makes a new offset measurement each time you change the function range or integration time The default state is ON 3 3 5 AC Current Step 1 Using either the 3 A or 10 A input terminal configure the test leads as follows U...

Страница 28: ...n The instrument offers three filter options of 3Hz 20Hz and 200Hz The filter you choose should be the highest filter which is less than the frequency of your test signal For example if the input signal is 300Hz the stable data can be obtained using the 200 Hz filter Step 5 Speed selection Filter Slow Medium Fast 3Hz 20Hz 200Hz Different filters have different test speeds so choosing the right mea...

Страница 29: ... range Press Range and select the range Auto range Auto can automatically select the appropriate range for measurement based on the input signal The auto range is adjusted upwards to 110 of the existing range and down to 10 of the existing range Step 4 Set the integration time The setting of the integration time affects the measurement speed and measurement accuracy The ...

Страница 30: ...auto zero enabled the digital multimeter measures the offset once and subtracts the offset from all subsequently measured parameters This avoids the effect of the offset voltage on the input circuit of the digital multimeter on the measurement accuracy The DMM makes a new offset measurement each time you change the function range or integration time The default state is ON 3 3 7 Resistance 4W 4 wi...

Страница 31: ...ration time The setting of the integration time affects the measurement speed and measurement accuracy The longer the integration time the higher the accuracy but the slower the measurement PLC power line cycle 1PLC 10PLC 100PLC can inhibit the power supply noise Selecting 100PLC can provide the best noise rejection but at a slower rate 3 3 8 Capacitance Measurement Step 1 Configure the test leads...

Страница 32: ...d on the input signal The auto range is adjusted upwards to 110 of the existing range and down to 10 of the existing range 3 3 9 Diode This section describes how to configure the diode test from the front panel The range and resolution are fixed and the range is 10 VDC with 1 mA current source output Step 1 Configure the test leads as follows ...

Страница 33: ...displayed on the front panel When the measured break over voltage is greater than 5V the front panel will display OPEN 3 3 10 Continuity This section describes how to configure the continuity test from the front panel Step 1 Configure the test leads as follows Step 2 Press on the front panel to open a menu that specifies whether the digital multimeter will beep to indicate the continuity ...

Страница 34: ... 3 11 Temperature test This section describes how to configure 2 wire and 4 wire temperature measurements from the front panel Temperature measurements require a temperature transducer probe Step 1 Configure the test leads as follows 2 wire temperature 4 wire temperature Step 2 Press then press on the front panel The following menu will appear Please note that Auto Zero is only available for 2 wir...

Страница 35: ...o zero disabled the digital multimeter measures the offset once and subtracts the offset from all subsequently measured parameters The DMM makes a new offset measurement each time you change the function range or integration time Step 5 Press Aperture and select the number of power line cycles PLC to measure Normal mode line frequency noise suppression is only available for 1 10 and 100 PLCs Selec...

Страница 36: ...ds to 110 of the existing range and down to 10 of the existing range Step 4 AC Filter Selection The instrument offers three filter options of 3Hz 20Hz and 200Hz The filter you choose should be the highest filter which is less than the frequency of your test signal For example if the input signal is 300Hz the stable data can be obtained using the 200 Hz filter Step 5 Speed selection Filter Slow Med...

Страница 37: ...l function the instrument takes the existing reading as a reference value and the subsequent readings subtract the reference value based on the actual input value Display reading actual reading reference value Different measurement functions can set different reference values once the reference value is set the reference values are the same for all ranges under the function Using the Null function...

Страница 38: ...ive value must be between 200 and 200 dBm default is 0 You can measure this value by pressing Measure Ref Value or input a specified value using the softkeys 5 5 dBm Calculation The dBm function is a logarithmic expression that compares the power delivered to the reference resistance relative to 1 mW dBm 10 x log10 reading2 reference resistance 1 mW 5 6 mX b The calculation of reading X on screen ...

Страница 39: ...function saves the current instrument state such as function selected and function settings Press Menu Utility Save Recall to access the Save Recall settings then press Save Settings to access the file management system Use the softkeys and navigation keys to select a save location and file type sta or prf The folder named files is the instruments nonvolatile memory If a USB flash drive is connect...

Страница 40: ... defined power on state an instrument state file saved as sta must first be saved to the instruments internal memory or on a USB flash drive See section 6 2 Save Settings above for details on how to save an instrument state file After a state file is created set the Power On settings to User Defined using the softkeys Select an instrument state file using the User File softkey which will be enable...

Страница 41: ...tings to enter the setup menu to set the sound and brightness Beeper and Key Click are independent and do not affect each other In order to prevent the screen from being completely black the minimum brightness is 20 Tip You can quickly adjust the brightness by using the then pressing up or down keys 7 4 Setting the format of the digital display Press Menu Utility System User Settings Number to set...

Страница 42: ...3 Receive the data RXD 3 2 Grounding GND 7 5 The RS232 interface on the 5490C Series uses a 9 pin DB9 connector The pinouts are defined in the table below Function Code Pin Connector Pin Number Transmitted Data TXD 3 Received Data RXD 2 Signal Ground Common GND 5 Rear panel connector It can be directly connected to it using a standard DB type 9 pin plug Caution To avoid electrical shock turn off t...

Страница 43: ...ransmission mode with a start bit and stop bit The data transmission format of RS232 is Data bits 8 Stop bit 1 Parity None Termination character LF newline ASCII code is 10 3 Selecting Baud Rate The baud rate is the rate at which Model 5492C 5493C multimeter and the computer communicate Choose one of these available rates 115200 57600 38400 19200 9600 4800 Note Factory default baud rate is 9600 Be...

Страница 44: ...t connected correctly Check if the multimeter has opened the RS232 interface function and the baud rate is selected correctly When the multimeter is busy with executing a bus command it will not accept any character from the serial interface at the same time So the character sent by the controller will be ignored In order to make sure the whole command is sent and received correctly the character ...

Страница 45: ...TMC protocol This multimeter uses a square type socket on the rear panel with the following pin sequence This unit uses a USB B type interface which can communicate via a standard square USB interface cable There are no settings in the menu system for USB configuration The only requirement is that a USBTMC driver is installed A USBTMC driver is included with VISA software CAUTION To avoid electric...

Страница 46: ...ber Multiple test instruments can be connected simultaneously on the same bus This instrument adopts the IEEE488 2 standard The control command system is open so that the user can use the PC operation interface provided by 5492CGPIB 5493CGPIB or take measurements by the control command system The control command system supports most functions of the instrument that is to say the user can execute a...

Страница 47: ...s instrument provides most of the general functions of GPIB except the controller see the following table Code name Function SH1 Support all data source contact function AH1 Support all receiver contact function T5 Basic talker function talk only function talk is canceled when in MLA serial point name is not supported L4 Basic Listener function the MTA is canceled no listening ...

Страница 48: ...auxiliary instructions Command Description Control instructions for the 5493C multimeter REM REMOTE 8 Bring the instrument into remote control mode IFC ABORT 8 Reset the instrument interface to the idle state LLO LOCAL LOCKOUT Block local messages so that all keys on the panel are inoperable GTL LOCAL 8 The instrument returns to local control and the buttons on the panel are active DCL CLEAR Clear...

Страница 49: ...41 Specifications 5492C 5492CGPIB ...

Страница 50: ...42 Specifications 5492C 5492CGPIB ...

Страница 51: ...43 Specifications 5493C 5493CGPIB ...

Страница 52: ...44 Specifications 5493C 5493CGPIB ...

Страница 53: ...45 Specifications 5493C 5493CGPIB ...

Страница 54: ...1 2 200 0 001 range 4 0 02PLC 400μs 4 1 2 1000 0 01 range 4 1 Reading rate for 60 Hz and 50 Hz operating conditions auto zero off using a fixed range 2 Digit mask set to Auto If a fixed number of digits are selected the number of displayed digits does not change due to the test speed 3 The average speed at which the ADC continuously samples data to the display 4 Add 20 μV for DCV add 20 mΩ for res...

Страница 55: ...ads probes connectors and accessories that you are using with the device Customers not on an open account must include payment in the form of a money order or credit card For the most current repair charges please refer to the service and support section on our website Return all merchandise to B K Precision Corp with prepaid shipping The flat rate repair charge for Non Warranty Service does not i...

Страница 56: ... new instrument via our website www bkprecision com Exclusions This warrantydoes not apply in theevent of misuse or abuse of theproduct or asa result of unauthorized alterations or repairs The warranty is void if the serial number is altered defaced or removed B K Precision Corp shall not be liable for any consequential damages including without limitation damages resulting from loss of use Some s...

Страница 57: ...49 22820 Savi Ranch Parkway Yorba Linda CA 92887 www bkprecision com 2020 B K Precision Corp V09212020 ...

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