Making Settings (Operation In Thr Mode); Selecting Operation Mode; List Of Setting Items - Omron ZN-DPX21-S Series User Manual

4.3 Making Settings (Operation in THR Mode)

Set the upper limit and lower limit values of the differential pressure regarding the alarm output of
the unit in THR mode.
When the measured value is either larger than the upper limit or smaller than the lower limit
during operation in RUN mode, the alarm output terminal turns ON and "ALM" on the display
turns ON.
When returned from the alarm state during measurement, you can set whether or not the alarm
output state is maintained.
Note
 Alarm monitoring cannot be stopped.
 To avoid alarm monitoring, set each threshold value to beyond the assumed measurement
range. The factory default has been set as non-alarm monitoring (setting the alarm upper/lower
limit to be measurable).

4.3.1 Selecting operation mode

Press the MODE key to change the operation mode to "THR". "THR" at the lower right of the
display blinks.
RUN Mode
MODE key
Press 2 times
▲▼ key
RUN Mode
operation

4.3.2 List of setting items

The table below shows a list of setting items in THR mode.
Display
item
DP HI
DP LO
DEGHI
DEGLO
RH HI
RH LO
HOLD
FUN Mode
▲▼ key
FUN Mode
operation
Display Setting item
Upper limit of the differential
pressure threshold value
Lower limit of the differential
pressure threshold value
Upper limit of temperature
threshold value
Lower limit of temperature
threshold value
Upper limit of humidity
threshold value
Lower limit of humidity
threshold value
Alarm hold setting
4. Setting the Unit (Unit Operation)
THR Mode
MODE key
▲▼ key
THR Mode
operation
4-13
MODE key
SCL Mode
MODE key
▲▼ key
SCL Mode
operation
Apply
THX21
DPX21
THX11
Yes
Yes
Yes
Yes
Yes
Yes
Yes Yes