Section 6 – User Settings
32
6.2
Emergency ShutOFF timer
6.2.1 Setting the ShutOFF Timer
The Emergency ShutOFF timer is one of the items that is set when the Pool Size is entered.
(section 2.6).
The emergency ShutOFF timer shuts the ORP and/or pH pumps down if they have operated
continuously for a preset time without the readings coming back to within the limits. For example,
this condition could occur if the drum of chemical is empty, the sensor is faulty and giving an
incorrect reading, or if the added chemicals were not able to be detected by the sensors. The
ShutOFF feature provides a safeguard against dosing entire Chlorine and/or Acid drums to the
pool. To set the ShutOFF time…
1. Select the ShutOFF menu (Press
, then select ‘
→
ShutOFF
’).
2. The
easyCHEM 770
now allows you to enter the maximum time for which the ORP pump will
operate without getting back to within the limit…
ORP ShutOFF
70mins
↑↓
Enter
Use the
and
keys to set the required time, from 1 to 240 minutes.
Press and hold the
or
key to scroll rapidly.
3. Press to save the ShutOFF timer setting for the ORP pump.
Press
to quit and retain the current setting.
4. If was pressed above, the
easyCHEM 770
will now allow you to enter the maximum time
for which the pH pump will operate without getting back to within the limit…
pH ShutOFF
30mins
↑↓
Enter
Use the
and
keys to set the required time, from 1 to 240 minutes.
Press and hold the
or
key to scroll rapidly.
5. Press to save the ShutOFF timer setting for the pH pump.
Press
to quit and retain the current setting.
6.2.2 Default ShutOFF Times for Pool Sizes
The following table details the default ORP and pH ShutOFF times for the various pool sizes…
Spa
20,000
Litres
50,000
Litres
100,000
Litres
Tube Size
Large Small Large Small Large Small Large Small
ORP ShutOFF Time
15 mins 45 mins
20 mins
70 mins
30 mins
70 mins 60 mins
120 mins
pH ShutOFF Time
5 mins 30 mins
10 mins
30 mins
10 mins
30 mins 20 mins
45 mins
