Distech Controls HS-THX Installation Manual page 5

4. Alarm 1
<MENU> Press to save and advance.
5. Alarm 1 Setpoint
Alarm 1 Assignment
Temp Hi
Temp Low
RH High
RH Low
<MENU> Press to save and advance.
6. Alarm 1 Hysteresis
Alarm 1 Assignment
Temp Hi or Low
RH High or Low
<MENU> Press to save and advance.
7. Alarm 1 Delay
<MENU> Press to save and advance.
8. Alarm 2 Assignment
<MENU> Press to save and advance.
9. Alarm 2 Setpoint
Alarm 1 Assignment
Temp Hi
Temp Low
RH High
RH Low
<MENU> Press to save and advance.
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Alarm1 assignment defaults to Temp High Alarm. Use <UP> or <DOWN> to change to Temp Low, RH High or RH
Low as required. If the product has the optional relays, then Alarm1 controls Relay1 and Alarm2 controls Relay2.
The Alarm1 setpoint depends on the Alarm1 assignment set previously as shown in the table. Use <UP> or <DOWN>
to change the setting within the limits. Note that a high alarm activates when the measurement exceeds the setpoint
and a low alarm activates when the measurement goes below the setpoint.
Default Setpoint
30°C / 86°F
15°C / 59°F
70 %RH
40 %RH
The Alarm1 hysteresis depends on the Alarm1 assignment set previously as shown in the table. Use <UP> or
<DOWN> to change the setting within the limits. Note that a high alarm resets when the measurement goes below
(setpoint - hysteresis) and a low alarm resets when the measurement goes above (setpoint + hysteresis).
Default Hysteresis
2°C / 4°F
10 %RH
The Alarm1 Delay default is 15 seconds. This is the delay time after alarm conditions are met before an actual alarm
is set. This can be used to prevent false alarms. Use <UP> or <DOWN> to change the setting from 0 to 255 seconds.
Only if Relay 2 installed
Alarm2 assignment defaults to Temp Hi. Use <UP> or <DOWN> to change to Temp Low, RH High or RH Low as
required. If the product has the optional relays, then Alarm1 controls Relay1 and Alarm2 controls Relay2.
The Alarm2 setpoint depends on the Alarm2 assignment set previously as shown in the table. Use <UP> or <DOWN>
to change the setting within the limits. Note that a high alarm activates when the measurement exceeds the setpoint
and a low alarm activates when the measurement goes below the setpoint.
Default Setpoint
30°C / 86°F
15°C / 59°F
70 %RH
40 %RH
Only if Relay 1 installed
Setpoint Range
10 to 40°C / 50 to 104°F
10 to 40°C / 50 to 104°F
20 to 90 %RH
20 to 90 %RH
Hysteresis Range
1 to 5°C / 2 to 10°F
5 to 20 %RH
Setpoint Range
10 to 40°C / 50 to 104°F
10 to 40°C / 50 to 104°F
20 to 90 %RH
20 to 90 %RH
Resolution
1°
1°
5 %RH
5 %RH
Resolution
1°
1 %RH
Resolution
1°
1°
5 %RH
5 %RH