Datasheet

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General Specifications
System specifications
Scanning inputs
Analog:
34921A, 34922A, 34923A, 34924A, and 34925A multiplexer channels
Digital
34950A/52A digital in and totalize
Scan triggering
Source
Interval, external, button press software, or on monitor channel alarm
Scan count
1 to 50,000 or continuous
Scan Interval
0 0 99 hours; t ms step size
Channel delay
0 to 60 seconds per channel; 1 ms step size
External trig delay
< 2 ms. With monitor on < 200 ms
External trig jitter
< 2 ms
Alarms
Analog inputs
Hi, Lo, or Hi + Lo evaluated each scan
Digital inputs
34950A/52A digital in maskable pattern match or state change
34950A/52A frequency and 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)
Memor y
Type
Volatile
Readings
500,000 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
Individual Mx+B scaling and calculated real time min/max/average
Power fail recovery
Save switch states
Relay maintenance
Counts each relay closure and stores on module. User resettable
Real-time clock
Battery-backed, 20-year typical life
Line power
Power supply
Universal 100 V to 240 V ± 10%
Power line frequency
50 – 60 Hz ±10% automatically sensed
Power consumption
150 VA
Environment
Operating environment
Full accuracy for 0 °C to 55 °C
Full accuracy to 80% R.H. at 40 °C
IEC 60664-1 pollution degree 1
Storage environment
- 40°C to 70°C
1
Mechanical
Mainframe dimensions
133 H x 426 W x 341 D mm (5.25" x 16.8" x 14")
Full rack, 3 units high
Mainframe weight
8.8 kg (19.6 lbs)
Module dimensions
280 H x 170 W x 27 D mm (11" x 6.7" x 1")
Module weights
0.73 to 1.18 kg (1.6 to 2.6 lbs
Terminal block dimensions
28 H x 170 W x 114 D mm (1.1" x 6.7" x 4.5")
Terminal block weights
0.27 to 0.36 kg (0.6 to 0.8 lbs)
Regulatory
Safety
CSA, UL/IEC/EN 61010-1
EMC
IEC/EN 61326-1, CISPR 11
1. Storage at temperatures above 40 °C will decrease battery life