mru SWG 100 biogas, Руководство пользователя

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MRU GmbH SWG 100 User Manual
Page 27 of 141
7.3. Configuration of the alarm relays
On the main PCB there is o
contact. The following errors
will turn the relay from NC to NO.
1. Main board is offline (internal RS485 bus communication failure)
2.
3. Gas leakage inside analyzer cabinet (CH4 > 20% to 50% LEL)
4. Condensate alarm (contacts resistance <
5. Low fan rotation (speed rotation < 900U/min)
6. Sample flow alarm (sample flow < 20 l/h)
7. Gas cooler high alarm (temperature > +10°C)
8. Gas cooler low alarm (temperature < +2°C)
9. Cabinet high temperature (> +55°C)
10. Cabinet low temperature (< +5°C)
Errors
1 to 5 alarm will force a measurement stop (all analog outputs are on hold or at 2mA,
depending on configuration).
Errors
5 to 10 will be displayed as warning message only; analog outputs of active sampling point
are live, all others are on hold.
ATTENTION
Analyzer system alarm relay is a potential-free contact, which max.
24VDC/VAC and a current of 1A (max.)
Connection of the alarm relay: Potential-free
Max. 24VDC/VAC, 1 A (max.)