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34420A-ABA 参数 Datasheet PDF下载

34420A-ABA图片预览
型号: 34420A-ABA
PDF下载: 下载PDF文件 查看货源
内容描述: 纳伏/微欧表 [NanoVolt/Micro-Ohm Meter]
分类和应用:
文件页数/大小: 4 页 / 98 K
品牌: AGILENT [ AGILENT TECHNOLOGIES, LTD. ]
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4
Measurement Characteristics  
Operating Characteristics  
5
DC Voltage  
Function  
Digits  
Integration Time  
Readings/s  
Measurement Method:  
1
dcV  
7 /  
2
200 plc  
100 plc  
20 plc  
10 plc  
1 plc  
.15 (.125)  
.3 (.25)  
Continuously integrating multi-slope III  
A-D Converter  
1
Thermocouple  
7 /  
2
1
6 /  
2
1.5 (1.25)  
3 (2.5)  
1
A-D Linearity:  
0.00008% of reading + 0.00005% of range  
6 /  
2
1
5 /  
2
25 (20.8)  
100 (100)  
250 (250)  
1
5 /  
2
0.2 plc  
0.02 plc  
Input Resistance:  
100V (Ch1 only): 10 MΩ +- 1%  
1mV through 10V: > 10 GΩ, in parallel with < 3.6 nF  
1
4 /  
2
1
Resistance  
dcV1/DCV2  
dcV 1-2  
RTD  
Thermistor  
0.2 plc  
7 /  
2
200 plc  
100 plc  
20 plc  
10 plc  
1 plc  
.075 (.062)  
.15 (.125)  
.75 (.625)  
1.5 (1.25)  
12.5 (10.4)  
Input Bias Current: <50 pA at 25 °C  
1
7 /  
2
1
6 /  
2
Injected Current: <50 nA pp at 50 or 60 Hz  
1
6 /  
2
Input Protection:  
150 V peak any input terminal  
to Channel 1 LO, continuous  
1
5 /  
2
50 (50)  
41/2  
0.02 plc  
125 (125)  
Channel-to-channel switching error (typical):  
3 nV  
Channel Isolation:  
6
Chart Out ±Analog Outꢁ  
Isolation between input channels >1010 Ω  
System Speeds  
Maximum output: 3V  
Resolution: 16 bits  
Configuration Rates: 26/s to 50/s  
Autorange Rate (Volts): >30/s  
ASCII reading to RS-232: 55/s  
ASCII reading to GPIB: 250/s  
Max. Internal Trigger Rate: 250/s  
Earth Isolation:  
350 V peak any input terminal to earth.  
Impedance from any input terminal to earth  
is >10 GΩ and <400 pF  
Accuracy: 0.1% of output + 1 mV  
Output Resistance: 1 kΩ 5%  
Update rate: once per reading  
Span and Offset: Adjustable  
Standard Programming Languages  
SCPI (IEEE 488.2), Keithley 181  
Accessories Included  
Maximum Voltage:  
Channel 1 LO to Channel 2 LO, 150V peak  
Max. Ext. Trig. Rate to Memory: 250/s  
Triggering and Memory  
Reading HOLD Sensitivity:  
Resistance  
10%, 1%, 0.1%, or 0.01% of range  
Samples/Trigger: 1 to 50,000  
Trigger Delay: 0 to 3600 s; 10 µs step size  
External Trigger Delay: <1 ms  
External Trigger Jitter: <500 µs  
Memory: 1024 readings  
Measurement Method:  
Selectable 4-wire or 2-wire ohms. Current  
Source referenced to Channel 1 LO input  
4 ft low thermal cable with copper spade lugs,  
Kelvin clip set, 4-wire shorting plug, user’s man-  
ual, service manual, test report, contact cleaner,  
and power cord.  
Offset Compensation:  
Used on all ranges except 100 kΩ and 1 MΩ.  
Can be turned off if desired  
Math Functions  
Protection: 150 V peak  
NULL (Channel 1 dcV, Channel 2 dcV,  
Difference, Resistance, Temperature)  
General Specifications  
Open Circuit Voltage:  
For Resistance and Low Power Resistance  
<14 V. 20 mV, 100 mV, 500 mV selectable clamp  
Front Panel Connection:  
STATS (Min, Max, Average, Peak-Peak,  
Standard Deviation, Number of readings)  
Shielded, low thermal, 99% copper contacts.  
Power Supply:  
SCALE (Allows linear scaling as y = mx+b)  
100V/120V/220V(230V)/240V +- 10%.  
Temperature  
CHART NULL (Establishes zero for rear panel  
output)  
Power Line Frequency:  
SPRT:  
45 Hz to 66 Hz and 360 Hz to 440 Hz.  
Automatically sensed at power-on.  
ITS-90 calibrated temperature with the range  
of -190°C to +660°C  
Filter ±Analog or Digital or Bothꢁ  
Power Consumption:  
Analog:  
Thermocouple:  
ITS-90 conversions of Type B, E, J, K, N, R, S, T  
25VA peak (10W average).  
Low pass 2 pole @ 13Hz, available for dcV  
on  
Operating Environment:  
Thermistor: 5 kΩ  
1 mV, 10 mV, 100 mV range  
Full accuracy for 0 °C to 55 °C. Full accuracy  
to 80% R.H. up to 30 °C.  
RTD: Type α =.00385 and α =.00392. R0 from  
4.9 Ω to 2.1 kΩ. ITS -90 (IEC-751) Callendar  
Van Dusen conversion.  
Digital:  
Moving average filter, 10 (fast), 50 (medium),  
or 100 (slow) reading averages.  
Storage Environment:  
-40 °C to 75 °C.  
1
Measurement Noise Rejection 60 ±50ꢁ Hz  
Size: 254.4 mm W x 374.0 mm L x 103.6 mm H  
(10.02” W x 14.72” L x 4.08” H)  
dc CMRR: 140 dB  
ac CMRR: 70 dB  
Integration Time  
1
2
For 1 kΩ unbalanced in LO lead.  
For power line frequency - 0.1%, Filters OFF. For  
Digital Filter slow add 20 db, for medium or fast add  
10 db for NPLC ³ 1.  
Weight: 3 kg (6.5 lbs).  
Normal Mode  
Safety:  
2
Rejection  
3
4
5
For power line frequency - 1%, use 80 db,  
for - 3% use 60 db.  
Designed to CSA, UL-1244, IEC-1010.  
RFI and ESD: CISPR 11.  
3
200 plc/3.335 s (4 s)  
100 plc/1.675 s (2 s)  
20 plc/334 ms (400 ms)  
10 plc/167 ms (200 ms)  
2 plc/33.3 ms (40 ms)  
1 plc/16.7 ms (20 ms)  
<1 plc  
110 dB  
105 dB  
100 dB  
Speeds are for delay 0, Display OFF, Filters OFF,  
Offset Compensation OFF.  
3
3
Reading speeds for 60 Hz or (50 Hz), 100 mV  
through 100 V ranges. 1 mV range 30/s MAX, 10  
mV range 170/s MAX, thermocouple 120/s MAX.  
Speeds are for NPLC 0.02, Delay 0, Display OFF,  
Chart Out OFF.  
95 dB3  
90 dB  
60 dB  
0
6
3