Flowserve LRR1-40 TDS Control Unit - Manual (Page 25)

25
Operation
– co ntinu ed –
Performance test
As part of the performance test a value is simulated that exceeds the measuring range
limit of 12000 µS/cm of the conductivity electrode. The equipment must response as if the
MAX limit were exceeded.
Press button briefly.
LED 1 and 4 are flashing rapidly.
LED 4 is illuminated during intermittent boiler
blowdown.
The test mode remains active for 10 seconds.
Press button and wait until LED 1 is illuminated.
Relay contact 1 opens.
As long as the button is pressed down a conductivity
value greater than 12000 µS/cm is simulated.
Please note when using the equipment as conductivity limiter
Test
Test
Note
The control unit LRR 1- 40 does not lock automatically when the adjusted
MAX limit is exceeded.
If a lock function is required by the installation it must be provided in the
following circuitry (safety circuit). This circuit must meet the requirements of
DIN VDE 0116, prEN 50156-1.