Xylem FLYGT MiniCAS II - Technical Reference; Dimensions; Environmental Requirements; Electrical Data

6.3 Test the function of the relay
1. Simulate a normal condition.
a) Connect a 1 kilohm resistor in series with an ammeter to the sensor output.
b) Connect terminal 6 and 7 to reset the relay.
WS009345A
A
+
–
6
7
5
~(+)
~(–)
10 s
12 VDC
1 k
1
3
4
9
8
11
Only the supply LED lights up and the meter shows 12 mA if the condition is
normal.
2. Simulate the temperature alarm.
a) Disconnect the resistor.
The temperature LED is lit.
b) Reconnect the resistor.
The temperature LED is still lit.
c) Connect terminal 6 and 7 for a short while to reset the relay.
The temperature LED is turned off.
3. Simulate the leakage alarm.
a) Connect a lead between terminal 5 and 7.
WS009346A
+
–
6
7
5
~(+)
~(–)
10 s
12 VDC
1
3
4
9
8
11
This short circuit does not damage the unit.
b) Keep the short circuit closed for 10 s.
The leakage LED is lit.
c) Remove the lead between terminal 5 and 7.
The leakage LED is turned of.
6 Troubleshooting
12 MiniCAS II Installation, Operation, and Maintenance Manual