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 16

DC300mA 300.00 

 

mA 

DC10A 3.0000 

 

Current ac 

AC0.3mA

1KHz

 0.03000 

0.30000 

mA 

AC3mA

1KHz

 0.3000 

3.0000 

mA 

AC30mA

1KHz

 3.000 

30.000 

mA 

AC300mA

1KHz

 30.00 

300.00 

mA 

AC10A

1KHz

 0.300 

3.000 

Frequency(3V 

of sine wave) 

3KHz 3.0000   

KHz 

NOTE 

To calibrator the meter, connect the instrument power cord to a power receptacle with earth ground. 

DC Volts calibration 

1)  Turn on the meter, press the DCA, dBm and          button simultaneity to enter calibration mode, and 

the “CAL” appears on the top left corner of the LCD(the “CAL” annunciator always appears in 
calibration mode), and the meter default enter to 300mV DC volts calibration mode. 

2)  Placed the standard equipment in the “STBY” state, and connected with the meter as shown in Figure 

5-1. 

3)  Set the standard equipment to DCV, and adjust until the display reads 300mV, press the OPR button 

to output. 

4)  Press the SHIFT button of the meter to 

calibrate the rated range for the DCV function, 
and the display reads the calibrated point. 

5)  Press the REL button to save the calibrated 

value after 5 seconds, and the “SAVE” 
displayed on the LCD; if the “ERR” displayed, 
check the set value for the standard equipment, 
and inspect the function and the method of the 

line connection right or not newly. 

6)  Press the          button to change range (in calibration mode, the meter is in manual range) 
7)  Set the standard equipment to the required output. 
8)  Repeat step 4 to 7 until complete all range. 

Note 

Be sure that the standard equipment is in the “STBY” state before change the function. 

DC 300mA amps calibration 

1)  Placed the standard equipment in the “STBY” state, press the DCA button and the meter default enter 

to 300mA DC Amps calibration state. 

2)  Connect the standard equipment with the meter as shown in Figure 5-2. 
3)  Adjust the standard equipment until the display reads 300mA, press the OPR button to output. 

4)  Press the SHIFT button of the meter to calibrate the 

300mA range, and the display reads the calibrated 
point. 

5)  Press the REL button to save the calibrated value 

after 5 seconds, and the “SAVE” displayed on the 
LCD; if the “ERR” displayed, check the set value for 
the standard equipment, and inspect the function and 
the method of the line connection right or not newly 

 

DC 10A amps calibration

 

1)  Placed the standard equipment in the “STBY” state, press the DCA button to enter to DCA calibration 

state. 

standard source 

5520A

AUX

NORMAL

SCOPE

TRIG
OUT

MAX

750V

1000V

10A FUSED

250V

ALL INPUTS

1KV MAX

FAST FUSE

500mA

mA

Figure 5-1

standard source 

5520A

AUX

NORMAL

SCOPE

TRIG
OUT

MAX

750V

1000V

10A FUSED

250V

ALL INPUTS

1KV MAX

FAST FUSE

500mA

mA

Figure 5-2

Содержание 8145B

Страница 1: ...ion of operation or handing you will be billed for the repair and the repaired product will be returned to you transportation prepaid SHIPPING TO MANUFACTURER FOR REPAIR OR ADJUSTMENT All shipment of...

Страница 2: ...manual has been organized to assist you in getting started quickly It is not necessary for you to read the entire manual before using the meter effectively However we recommend that you do so in orde...

Страница 3: ...meter in the circuit z Check meter fuses before measuring transformer secondary or motor winding current See Section 4 MAINTENANCE An open fuse may allow high voltage build up which is potentially ha...

Страница 4: ...tests check RAM ROM A D and the display The meter has passed all tests and is ready for normal operation if an error code is not displayed After the meter completes the power up sequence it assumes th...

Страница 5: ...GROUND THE METER IS PROTECTED AGAINST OVERLOADS UP TO THE LIMITS SHOWN IN TABLE 3 1 EXCEEDING THESE LIMITS POSES A HAZARD TO THE METER AND OPERATOR Measuring Voltage Resistance or Frequency To measure...

Страница 6: ...ibels are always displayed in a single fixed range with 0 01 dB resolution Press the AUTO toggle in and out autorange you can also press the and change range manually A voltage measurement is converte...

Страница 7: ...000V peak on all ranges mA and mA mA and COM 500mA dc or ac rms A and A 10A and COM 10A dc or ac rms V and COM 250V dc or ac rms on all ranges V and COM 250V dc or ac rms on all ranges All Functions A...

Страница 8: ...00Hz 330 00 Hz 30MHz range have not full scale 3KHz 3 3000 KHz 30KHz 33 000 KHz 300KHz 330 00 KHz 3MHz 3 3000 MHz 30MHz ANGING AUTO Ranging operations are performed using the AUTO and buttons see Figu...

Страница 9: ...If the input signal is below the required level the frequency will be displayed as zero If the measurements are unstable the input signal may be near the threshold level SELECT A FUNCTION MODIFIER REL...

Страница 10: ...taken The measurement reading displayed on the secondary display To exit the MN MX AVG modifier press and hold down the MN MX button for two seconds or press other function buttons Selecting the MN M...

Страница 11: ...USB cable to the communication connector on the real panel plug the other end of the cable to the USB port of the computer running the devote DMMVIEW_8145B software set the corresponding connector po...

Страница 12: ...ONS annunciator is showed on the primary display the Reference Impedance is showed on the secondary display Then press or to select the needed value supplied value are 50 75 93 100 150 300 500 600 800...

Страница 13: ...is good the meter will read between 1 to 19 If the fuse is blown the meter will read 10M to OL 3 Remove the test lead probe from the mA input terminal and insert it into the 10A input terminal If the...

Страница 14: ...r Current dc function and 300mA range on the meter and the input level from the 5520A The display should meet the request listed in Section 6 3 Connect a test lead from the output 20A HI and LO connec...

Страница 15: ...VIRONMENT STATION z Temperature 23 2 z Relative humidity 70 RH z Power varied at 5 of rated voltage z Frequency of power rated value 1Hz z Warmup 2 hours for standard equipment 1 hour for measured met...

Страница 16: ...ine connection right or not newly 6 Press the button to change range in calibration mode the meter is in manual range 7 Set the standard equipment to the required output 8 Repeat step 4 to 7 until com...

Страница 17: ...quency of the applied signal should be 1KHz 8 Applied the standard equipment 300mV 1KHz to the meter 9 Keep the meter at least 20 seconds press the REL button to save the calibrated value and the SAVE...

Страница 18: ...d equipment in the STBY state Connect the standard equipment with the meter as shown in Figure 5 3 referred before 10 Applied the standard equipment 3A 1KHz to the meter 11 Keep the meter at least 20...

Страница 19: ...ve the line connected with the AUX terminal of the standard equipment 8 Repeat step 5 to step 7 until complete all range SECTION 6 Specifications INTRODUCTION This Section contains the specifications...

Страница 20: ...50Hz or 60Hz 1K unbalanced resistance Maximum Input 750V rms 1000V peak DC CURRENT Range Resolution Accuracy Input Impedance 300 mA 10uA 0 1 3 1 10A 1 mA 1 5 3 0 01 Maximum Input 300mA Protected with...

Страница 21: ...t Voltage 2V Test Current Approximate 1mA when measuring forward bias junction Continuous Resistance 150 FREQUENCY Range Resolution Accuracy 300Hz 0 01 Hz 0 05 2 3KHz 0 1 Hz 30KHz 1 Hz 300KHz 10 Hz 3M...

Страница 22: ...ttention to Use of Operation Instruction z The present operation instruction is subject to change without notice z The content of the operation instruction is regarded as correct Whenever any user fin...

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