Dry Contact Relay Alarms; General Description; Available Alarm Relays - GE CB Watch 3 User Manual

DRY CONTACT RELAY ALARMS

General Description

As seen throughout this manual, alarms can be set on a long list of parameters. These
alarms are available in three different ways:
- Through the HMI using colour coded notifications flags
Alarms will appear in red and warnings in yellow, otherwise all will be green:
HMI: Measurements / Alarms
- Through the digital interface to the CBW3, depending on the protocol used, with
alarm status fields
- Though their assignment to available dry contact relays
We will cover this last method here. Even though modern digital protocols are most often
used, it is available for connection to older SCADA systems.

Available alarm relays

Two dry contact alarm relays, K1 and K2, are provided as standard on the base
ProWatch module.
The K2 output is used to provide the state of the CBW3. It is the result of the system's
own self-checking function. It can inform the maintenance service and/or supervision
system of an internal malfunction with the CBW3 system.
The K1 output is user programmable and can be set against one or many of the alarm
parameters available. For example, in the context of gas supervision, it is possible to
assign the output to one of the gas level thresholds.
An additional 16 different alarm relays are available with the DO16 optional module.
Each one can be triggered by one or several alarms which were set and specified by the
user.
CB Watch 3 User Manual
Figure 150 – Alarm colour coding
v6.3 - May 2019 Page 92 of 100