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5. Process Monitoring
Once the
mini
CHEM
-Sal
has been installed, connected and calibrated, it can be
used for continuous monitoring. To monitor the process, WITHOUT any control
or alarm functions switch the function switch to
STANDBY
.
6. Automatic Dosing
For Automatic Alarming or Control, switch the function switch to
AUTO
to
enable the Alarm LED and the (optional) relay output. These will be switched ON
while the Salinity/TDS exceeds the limit value, and will switch OFF once the
Salinity/TDS is back within the limit.
7. Manual Dosing
From time to time, a dose of chemical may be required even when the
Salinity/TDS is within the limit value. To do this, simply switch the function
switch to
MANUAL,
if the (optional) relay output is fitted.
NOTE:
The output will be ON continuously while the function switch is set to
MANUAL
. It will not be switched OFF again until the switch is set
back to one of the other modes.
8. Fuse Replacement
If the current drain from any device connected to the output relay exceeds 1 Amp,
the output protection fuse will blow.
To replace the fuse…
1. SWITCH THE
mini
CHEM
-Sal
OFF.
2. Pull out the black fuse carrier.
3. Replace the blown fuse
4. Push the fuse carrier with the new fuse back into place.
ALWAYS REPLACE THE FUSE WITH A 1 AMP, 240V
FUSE. USING A FUSE WITH HIGHER CURRENT RATING
MAY DAMAGE YOUR CONTROLLER, VOIDING THE
WARRANTY.
Before switching the
mini
CHEM
-Sal
back to
AUTO
mode, ensure that the cause
of the blown fuse has been eliminated.
If the current drain of the device connected to the relay output is greater than 1
Amp, an external contactor should be used. Please consult an electrical contractor
or TPS for details.
