Easidew DryCheck User’s Manual
10
97108 Issue 13, July 2017
OPERATION
3.3 System
Alarms
3.3.1 Alarm Switching Logic (Default)
The Easidew DryCheck has one alarm output. As supplied, the default alarm set-point
and the alarm switching logic are as follows (the default temperature units are degrees
Celsius):
Alarm 2
(High Alarm) is set to switch
ON
when the temperature reading is higher (gas
wetter) than its set-point value. For the default set-points therefore, the operation of
this alarm would be as follows:
Alarm 2
Temp < -40 Alarm 2 = OFF
Temp > -40 Alarm 2 = ON
Depending upon the application, if required, it is possible to reverse the switching logic
for either or both of the alarm channel outputs to provide the following alarm output
configurations:
Alarm 2
Temp < -40 Alarm 2 = ON
Temp > -40 Alarm 2 = OFF
Section 3.3.2 describes the method for reversing the default switching logic and Section
3.3.3 describes the method for setting up individual alarm set-points.
3.3.2 Reversal of Alarm Switching Logic
As described in Section 3.3.1, the switching logic for the alarm channel may, if required,
be reversed.
Starting at the default state, the method of reversing the switching logic for the alarm
is as follows:
1. Press
the
P
key once and the display will read
tECH
.
2. Press
the
SET
key and the display will flash between
ConF
and
PinP
.
3. Press
the
key three times and the display will flash between
ConF
and
Alr2
.
4. Press
the
SET
key twice to display
Alt2
.
5. Press
the
key once to display a flashing 4 digit number. For the Alarm
2 default setting this will be 0000.
6. Press
the
key once to change the display to 0001.
7. Press
the
SET
key to store the new value.
8. Press
the
P
key twice to return.