| 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 |