The HIMA 62100, also cataloged as the 62100 Analogue Limit Monitor, operates as a dedicated hardware component for over, under, and range limit values monitoring within PLANAR4 Safety System networks.
| Parameter | Specification |
|---|---|
| Model | 62100 (Alternate Part No: 984162100) |
| Brand | HIMA |
| Origin | Germany |
| Module Type | 2-Fold Analogue Limit Monitor |
| Input Configuration | Voltage: 0-5.5 V, 1-5.5 V; Current: 0-22 mA, 4-22 mA (250 Ohm shunt) |
| Monitoring Channels | 2 independent channels |
| Resolution | 12-bit |
| Accuracy | Reference error <= 0.25% (at +25 deg C); Operating error <= 0.4% (-25 to +70 deg C) |
| Response Time | < 10 ms (Limit module logic); < 100 ms typical (System processing) |
| Output Contacts | 2 relay outputs (100 mA each, fail-safe contacts) |
| Architecture | Dual-processor 1oo2 redundant design |
| Power Consumption | 24 VDC nominal, 170 mA (~4.1 Watts) |
| Operating Temp | -20 to +60 deg C (Extended range: -25 to +70 deg C) |
| Dimensions | 45 mm x 100 mm x 22.5 mm (3U high, 4SU wide subrack form) |
| Weight | 0.35 kg typical |
The 62100 internal circuitry utilizes a dual-processor 1oo2 redundant design certified to meet IEC 61508 SIL 3 operational parameters. The analogue front-end executes continuous line diagnosis routines across the 4-22 mA or 1-5.5 V sensing paths to identify open-circuit wire breaks or short-circuit signal anomalies. If any discrepancy manifests between the independent internal processing nodes or if a loop fault triggers, the module forces its active relay contacts to open, initiating a fail-safe state execution to drop safety loops into a de-energized shutdown sequence instantly. Complete galvanic isolation separates the incoming analogue channels from the output loops to eliminate fault propagation.
Q: How is the line diagnosis function enabled or disabled on the 62100 analogue loop inputs?
A: Line diagnosis parameters depend on the configured physical signal range. Selecting a live-zero scale (4-22 mA or 1-5.5 V) engages the hardware comparison window, whereas true-zero paths (0-22 mA or 0-5.5 V) bypass the line diagnosis mechanism.
Q: Is online hot-swapping permitted for the 62100 card during continuous turbine or compressor protection monitoring?
A: Yes, if the 62100 is mounted within an engineered redundant architecture configuration. Extraction of a single card while the chassis rail is energized will break that specific 1oo2 logic link but will not disrupt remaining rack backplane power lines, provided appropriate process overrides are implemented.
Q: What physical reaction occurs within the output relays when the 24 VDC nominal module power drops below the low-voltage limit?
A: A power drop below the operational 18 VDC threshold de-energizes the internal coils, causing both independent relay outputs to immediately drop open into their hardwired fail-safe state execution configuration.
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