IM-P402-93 AB Issue 7
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page 25
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8.6 Maximum level
This is the maximum water level in the gauge glass, not the high alarm
level, and defines the highest point of reference for the system.
It is most unlikely that the level will be correct for a new system. Select
'Change' to allow manual control of the valve / pump as shown in the
diagram. Press 'Enter' when the water is at the required level:-
8.7 Lvlinput O/rngdet
LeVeL INPUT Out of RaNGe DETection.
If selected, this feature will flash 'ALARM HIGH / ALARM LOW' if the
input signal should fall to below 0.2 V / 2 mA, or exceed 6 volts. It will
also de-energise all relays:-