Modules and accuracy specifications |
Scanning Inputs |
Analog |
34901A, 34902A, and 34908A multiplexer channels |
Digital |
34907A digital in and totalize
Scan list Scans channels in ascending order |
Scan Triggering |
Source |
Interval, external, button press, software, or on monitor channel alarm |
Scan count |
1 to 50,000 or continuous |
Scan interval |
0 to 99 hours; 1ms step size |
Channel delay |
0 to 60 seconds per channel; 1 ms step size |
External trig delay |
<300 µs. With monitor on <200 ms |
External trig jitter |
<2 ms |
Alarms |
Analog inputs |
Hi, Lo, or Hi + Lo evaluated each scan |
Digital inputs |
34907A digital in maskable pattern match or state change
34907A totalize: Hi limit only |
Monitor channel |
Alarm evaluated each reading |
Alarm Outputs |
4 TTL compatible
Selectable TTL logic Hi or Lo on fail |
Latency |
5 ms (typical) |
Memory |
Battery backed, 4 year typical life1 |
Readings |
50,000 with timestamp
Readable during scan |
States |
5 instrument states with user label |
Alarm Queue |
Up to 20 events with channel number, reading, and timestamp |
System Features |
Per-channel Math |
Individual Mx + B scaling and Min/Max/Average calculated real time |
Power Fail Recovery |
Resumes scanning automatically |
Relay maintenance |
Counts each relay closure and stores on module User resettable |
Real-time clock |
Battery-backed, 4-year typical life1 |
General Specifications |
Power Supply |
100V/120V/220V/240V ±10% |
Power Line Frequency |
45 Hz to 66 Hz automatically sensed |
Power Consumption |
12 W (25 VA peak) |
Operating Environment |
Full accuracy for 0ºC to 55ºC
Full accuracy to 80% R.H. at 40ºC |
Storage Environment |
-40ºC to 70ºC1 |
Weight |
Net 3.6 kg (8.0 lbs) |
Safety |
Conforms to CSA, UL-1244, IEC 1010 Cat I |
RFI and ESD |
CISPR 11, IEC 801/2/3/4 |
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Storage at temperatures above 40ºC will decrease battery life
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Software provided on CD-ROM and includes utility to create floppy disks for installation
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Interface and driver must be purchased and installed separately
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90 MHz Pentium, 20 MB RAM
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Requires VISA command library for IEEE-488
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