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!!!HP3457A,HP 3457A现货特价处理 !!!HP3457A,HP 3457A现货特价处理0769-8799...

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参数规格说明:DC VOLTAGE INPUT CHARACTERISTICS:

6 full scale ranges from 30mV (max.10nV resolution) to 300V (max. 100µV resolution)
Input Resistance for 30mV to 3V range 10 gigaohms

Input Resistance for 30V to 300V range 10 megohms

Maximum Input Voltage: HI or LO to Earth Ground +/-450V peak

Measurement Accuracy: +/-(% of reading + Number of Counts) with Auto Zero ON

DC VOLTAGE ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard 24 hour specifications apply if the instrument is calibrated between 90% and of full scale. For calibration between 33% and 90% of full-scale, add 0.00015% to %Reading :

24 HOUR

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
30mV0.00122153506
300mV0.000524354
3V0.00035564
30V0.000659204
300V0.0025564

DC VOLTAGE ACCURACY 90 DAYS Tcal +/-5°C After 1h warm up

90 DAYS

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
30mV0.00403655006
300mV0.002539504
3V0.0017674
30V0.003519304
300V0.0050674



DC VOLTAGE ACCURACY 1 YEAR Tcal +/-5°C After 1h warm up

1 YEAR

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
30mV0.00453655006
300mV0.003539504
3V0.0025674
30V0.004019304
300V0.0055674



PLC = Integration in Power Line Cycles. When using integration times of 100 PLC, 10 PLC, or 1 PLC; multiply Number of Counts in the table by 0.1 for 5 1/2 digit readings, 0.01 for 4 1/2 digit readings and 0.001 for 3 1/2 digit readings. Tcal = Temperature ambient during calibration (should 18-28°C).



TEMPERATURE COEFFICIENT: +/-(% of Reading + Number of Counts)/°C 6 1/2 digits displayed, Auto zero OFF are given for a stable environment (+/-1°C) and over a ten minute period. Multiply number of counts by 0.1 for 5 1/2 digits, 0.01 for 4 1/2 digits and 0.001 for 3 1/2 digits.


RangeAuto Zero ONAuto Zero OFF
30mV0.0005 + 300.0005 + 40
300mV0.0005 + 30.0005 + 13
3V0.0005 + 0.30.0005 + 10.3
30V0.0005 + 10.0005 + 11.0
300V0.0005 + 0.30.0005 + 10.3


MAXIMUM READING RATES: (Readings/Second)

Integration Time

Digits Displayed

Reading Rate

60 Hz50 Hz
0.0005 PLC3 1/213501350
0.005 PLC4 1/212501250
0.1 PLC5 1/2360312
1 PLC6 1/25345
10 PLC6 1/24.84.0
100 PLC6 1/20.480.40



DC CURRENT INPUT CHARACTERISTICS:

6 full scale ranges from 300µA (max. 100pA) to 1A (max.1µA)

Shunt resistance from 1000 Ohm to 0.1 Ohm


DC CURRENT ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard


24 HOUR

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
300µA0.002054654
3mA0.00254654
30mA0.002054654
300mA0.031541654
1A0.035045155


DC CURRENT ACCURACY 1 YEAR Tcal +/-5°C 1h warm up Accuracy relative to calibrated standard

1 YEAR

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
300µA0.041041154
3mA0.041041154
30mA0.041041154
300mA0.082042154
1A0.086046155

RESISTANCE (4-WIRE OHMS, 2-WIRE OHMS, OFFSET COMPENSATED OHMS)

Input Characteristics:

Input Protection: HI sense to LO sense +/-350V peak 

HI or LO to Earth ground +/-450V peak

Max. open circiut voltage 30 Ohm to 3M ranges: 12V. 30M to 3G ranges: 8.5V

Range (Ohms)Maximum Reading 6 1/2ResolutionCurrent through Unknown
3030.310µ1mA
3003031m1mA
3k3.03k10m1mA
30k30.3k100m100µA
300k303k110µA
3M3.03M101µA
30M30.3M100100nA
300M303M1k100nA
3G3.03G10k100nA


RESISTANCE 4-WIRE ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard


24 HOUR

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
300.0032153506
3000.001524354
3k0.001564
30k0.001564
300k0.001684
3M0.00312165
30M0.0280934


RESISTANCE 4-WIRE ACCURACY 1 YEAR Tcal +/-5°C 1h warm up Accuracy relative to calibrated standard

1 YEAR

Number of Counts

Range%Reading6 1/2 digits 100 PLC6 1/2 digits 1 PLC3 1/2 digits 0.0005 PLC
300.00753154506
3000.005534454
3k0.005674
30k0.005674
300k0.005794
3M0.006512165
30M0.0480935



RESISTANCE 2-WIRE ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard


24 HOUR

Number of Counts

Range%Reading6 1/2 digits 100 PLC
300.00320215
3000.00152024
3k0.001205
30k0.00125
300k0.0018
3M0.00312
30M0.0280
300M0.61000
3G6.01000


RESISTANCE 2-WIRE ACCURACY 1 YEAR Tcal +/-5°C 1h warm up Accuracy relative to calibrated standard


1 YEAR

Number of Counts

Range%Reading6 1/2 digits 100 PLC
300.007520315
3000.00552034
3k0.005206
30k0.00526
300k0.0059
3M0.006512
30M0.0480
300M1.61000
3G161000



TRUE RMS AC coupled VOLTAGE ACCURACY INPUT CHARACTERISTICS

Input Impedance: 1Megohm +/-1% shunted by <90pF (<115pF rear input)

Maximum Input Voltage: +/-450Vpeak 

HI or LO to Earth Ground: +/-450Vpeak

CREST FACTOR: 3.5 to 1 at full scale

RangeMaximum Reading6 1/2 digits Resolution
30mV32.50000mV10nV
300mV325.0000mV100nV
3V3.250000V1µV
30V32.50000V10µV
300V325.0000V100µV


TRUE RMS AC coupled VOLTAGE ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard


24 HOUR 30mV to 30V ranges

Number of Counts

Frequency%Reading6 1/2 digits >=1 PLC
20Hz-45Hz0.5720
45Hz-100Hz0.15720
100Hz-20kHz0.07720
400Hz-20kHz0.08720
20kHz-100kHz0.61700
100kHz-300kHz3.19300
300kHz-1MHz10.166000


TRUE RMS AC coupled VOLTAGE ACCURACY 90 DAYS Tcal +/-5°C 1h warm up Accuracy relative to calibrated standard


90 DAYS 30mV to 30V ranges

Number of Counts

Frequency%Reading6 1/2 digits >=1 PLC
20Hz-45Hz0.561120
45Hz-100Hz0.211120
100Hz-20kHz0.131120
400Hz-20kHz0.141120
20kHz-100kHz0.662100
100kHz-300kHz3.169700
300kHz-1MHz10.1666400

300V range is similar to the 30mV to 30V ranges, a little more bad.

TRUE RMS AC coupled CURRENT ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard

24 HOUR 30mA and 300mA ranges

Number of Counts

Frequency%Reading6 1/2 digits >=1 PLC
20Hz-45Hz0.82800
46Hz-100Hz0.252800
101Hz-20kHz0.22800
400Hz-20kHz0.22800
21kHz-100kHz0.94000


TRUE RMS AC coupled CURRENT ACCURACY 24 HOUR Tcal +/-1°C 2h warm up Accuracy relative to calibrated standard


24 HOUR 1A range

Number of Counts

Frequency%Reading6 1/2 digits >=1 PLC
20Hz-45Hz0.92800
46Hz-100Hz0.352800
101Hz-20kHz0.302800
400Hz-20kHz0.302800
FREQUENCY and PERIOD ACCURACY
FrequencyPeriod%Reading
10Hz-400Hz100ms - 2.5ms0.05
400Hz-1.5MHz2.5ms to 667ns0.01
          
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