Operating Characteristics - Agilent Technologies 34420A User Manual

Temperature
Thermocouple Type B, E, J, K, N, R, S, T
Range: -210° C to 1820° C
Thermistor
5 k
Range: -80° C to 150° C
RTD
4-wire, 4.9
types:
and
Range: -200° C to 850° C
Measurement Noise Rejection 60 (50) Hz
dc CMRR 140 dB
ac CMRR 70 dB
Integration Time Normal Mode Rejection
200 plc/3.335 ms (4s) 110 dB
100 plc/1.675 ms (2s) 105 dB
20 plc/334 ms (400ms) 100 dB
10 plc/167ms (200ms) 95 dB
2 plc/33.3 ms (40 ms) 90 dB
1plc/16.7ms (20ms) 60 dB
<1plc 0
Chapter 8 Specifications
34420A Nano Volt/Micro Ohm Meter
to 2.1 k
= .00385 (DIN/IEC 751)
= .00391
[1]
[3]
[3]
[3]
[3]
[3]
278

OPERATING CHARACTERISTICS

Function
DCV,
Thermocouple 7
Resistance,
DCV1/DCV2,
[2]
DCV 1-2,
RTD,
Thermistor
System Speeds
Configuration Rates
Autorange Rate (DC Volts)
ASCII reading to RS-232
ASCII reading to GPIB
Max. Internal Trigger Rate
Max. Ext. Trig. Rate to Memory
[1] For 1 k unbalanced in LO lead.
[2] For power line frequency ± 0.1%, Filters OFF.
For Digital Filter slow add 20 db, for medium or fast add
10 db for NPLC 1.
[3] For power line frequency ± 1%, use 80 db or ± 3% use 60 db.
[4] Speeds are for delay 0, Display OFF, Filters OFF, OCOMP OFF.
[5] 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.
[6] Speeds are for NPLC 0.02, Delay 0, Display OFF, Chart Out
OFF.
Integration
Digits
Time
7 200 plc
1
2
100 plc
1
2
6 20 plc
1
2
6 10 plc
1
2
5 1 plc
1
2
5 0.2 plc
1
2
4 0.02 plc
1
2
7 200 plc
1
2
7 100 plc
1
2
6 20 plc
1
2
6 10 plc
1
2
5 1 plc
1
2
5 0.2 plc
1
2
4 0.02 plc
1
2
[6]
26/s to 50/s
>30/s
55/s
250/s
250/s
250/s
[4]
[5]
Readings/s
.15 (.125)
.3 (.25)
1.5 (1.25)
3 (2.5)
25 (20.8)
100 (100)
250 (250)
.075 (.062)
.15 (.125)
.75 (.625)
1.5 (1.25)
12.5 (10.4)
50 (50)
125 (125)