TB820-2V2 3BSE013209R1 Terminal module

The rate alarm predicts the future gas concentration by monitoring the rate of rise of the sensor signal and provides an early alarm indication before the sensor signal reaches the next level alarm set point. g. Individual Alarm An individual alarm is caused by the input to an individual control channel crossing a preconfigured threshold and is not related to any other control channel. The relevant LED (A1, A2, A3, Fault, Inhibit) will illuminate on the control card with the alarm condition.h. Zoned Alarm* A zoned alarm is caused by the input to any control channel, from a sensor in a designated area, crossing a preconfigured threshold. The relevant LED (A1, A2, A3, Fault, Inhibit) will illuminate on the control card with the alarm condition and also on the control card designated the Zone Master Card (unless it is fitted with a High Integrity Relay Card).

Master Alarm* 

A master alarm is caused by the input to any designated control channel within a single rack crossing a preconfigured threshold. The relevant LED (A1, A2, A3, Fault, Inhibit) will illuminate on the control card with the alarm condition and also on the control card designated the Master Card (unless it is fitted with a High Integrity Relay Card)A voted alarm is caused by the simultaneous presence of an identical alarm on more than one control channel within a preconfigured group. The relevant LED (A1, A2, A3, Fault, Inhibit) will illuminate on the control cards with the alarm condition and also on the control card designated the Vote Master Card (unless it is fitted with a High Integrity Relay).

Vote compensation 

(Version 2V6 and above Software only) may be applied to the voted alarm output operation by selecting one of the following configurations: a. No compensation. b. Faults counted as alarms. c. Faults and inhibits counted as alarms. d. Vote count reduction on faults. e. Vote count reduction on faults and inhibit. Vote compensation is useful to ensure that sensors in fault (or inhibit) do not prevent voted alarm outputs. k. Update Alarm (Version 2Vx Software only) The update alarm facility provides a common alarm indication whenever a new alarm occurs, even if a previous alarm condition exists. The update alarm can be configured to operate on a single channel or on a grouped alarm. eg. master or zoned. The update alarm is especially useful in systems configured with only master or group/zone relays, where the occurrence of subsequent alarms will not cause further relay output compared to that caused by the initial alarm.

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Spare parts spare parts, the DCS control system of PLC system and the robot system spare parts,

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