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Measurement Rates and System Characteristics
Single Channel Measurement Rates
[1] [2]
Function
DCV, 2-Wire Ohms:
Thermocouple:
RTD, Thermistor:
ACV:
Frequency, Period:
Resolution
6
1
⁄
2
(10 PLC)
5
1
⁄
2
(1 PLC)
4
1
⁄
2
(0.02 PLC)
0.1
°C (1 PLC)
(0.02 PLC)
0.01
°C (10 PLC)
0.1
°C (1 PLC)
1
°C (0.02 PLC)
6
1
⁄
2
Slow (3 Hz)
6
1
⁄
2
Medium (20 Hz)
6
1
⁄
2
Fast (200 Hz)
6
1
⁄
2
[3]
6
1
⁄
2
Digits (1s gate)
5
1
⁄
2
Digits (100 ms)
4
1
⁄
2
Digits (10 ms)
Readings/s
6 (5)
53 (47)
490
49 (47)
280
6 (5)
47 (47)
280
0.14
1
8
100
1
9
70
System Speeds
[4]
INTO Memory
Ch/s
Single Channel DCV
34902A Scanning DCV
34907A Scanning Digital Input
34902A Scanning DCV, scaling and 1 alarm fail
34907A Scanning Totalize
34902A Scanning Temperature
34902A Scanning ACV
[3]
34902A Scanning DCV/Ohms, alternate channels
34901A/34908A Scanning DCV
490
250
250
220
170
160
100
90
60
INTO and OUT of Memory to GPIB or RS-232 (INIT, FETCh)
34902A Scanning DCV
34902A Scanning DCV with Time stamp
180
150
OUT of Memory to GPIB
[5]
Readings
Readings with Time stamp
Readings with all Format Options ON
800
450
310
OUT of Memory to RS-232
Readings
Readings with Time stamp
Readings with all Format Options ON
600
320
230
DIRECT to GPIB or RS-232
Single Channel DCV
34902A Scanning DCV
Single Channel MEAS DCV 10 or MEAS DCV 1
Single Channel MEAS DCV or MEAS OHMS
440
200
25
12
System Characteristics
Scan Triggering
Scan Count:
Scan Interval:
Channel Delay:
External Trig Delay:
External Trig Jitter:
1 to 50,000 or continuous
0 to 99 hours; 1 ms step size
0 to 60 seconds/channel; 1 ms step size
< 300
µs; With Monitor On, < 200 ms
< 2 ms
Alarms
Alarm Outputs:
Latency:
4 TTL compatible. Selectable TTL logic
HI or LO on Fail
5 ms (typical)
Memory
Readings:
Time Stamp Resolution:
Relative
Absolute
States:
Alarm Queue:
Battery Backed, 4 year typical life
[6]
50,000 readings
1 ms
1 s
5 instrument states
Up to 20 events
General Specifications
Power Supply:
Power Line Frequency:
Power Consumption:
Operating Environment:
Storage Environment:
Weight (Mainframe):
Safety:
RFI and ESD:
Warranty:
100 V / 120 V / 220 V / 240 V
±10%
45 Hz to 66 Hz automatically sensed
(12 W) 25 VA peak
Full accuracy for 0
°C to 55 °C
Full accuracy to 80% R.H. at 40
°C
-40
°C to 70 °C
[6]
Net: 3.6 kg (8.0 lbs)
Conforms to CSA, UL-1244, IEC 1010 Cat I
CISPR 11, IEC 801/2/3/4
3 years
[1] Reading speeds for 60 Hz and (50 Hz) operation; autozero OFF
[2] For fixed function and range, readings to memory,
scaling and alarms off, autozero OFF
[3] Maximum limit with default settling delays defeated
[4] Speeds are for 4
1
⁄
2
digits, delay 0, display off, autozero off.
Using 115 kbaud RS-232 setting.
[5] Assumes relative time format (time since start of scan)
[6] Storage at temperatures above 40
°C will decrease battery life
N10149
This ISM device complies with Canadian ICES-001.
Cet appareil ISM est conforme à la norme NMB-001
du Canada.
Chapter 9 Specifications
Measurement Rates and System Characteristics
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