HVAC40…
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V1.1
3.6
C
ONFIGURATION VIA THE INTERNAL BUTTONS
(
ONLY
HVAC40R17…)
The upper button B1 allows scrolling the available operating parameters, while the
lower button B2 allows changing the setting of the selected parameter.
The function of a button depends on whether it is short or long pressed. To short
press a button, hold it down for about 1 second, until the power LED turns off. To long
press a button, hold it down for at least 3 seconds, until the power LED turns off and then
turns on again.
Long press the upper button B1 to enter the menu. Inside the menu, long press B1 to
scroll the available parameters. Below is the sequence of the operating parameters (in
brackets the indication that appears on the display) with the possible settings for non-
numerical parameters:
•
Relay operating mode (SECU):
o
Negative (NEG): NC contact is closed if no alarm, NO contact is closed if in alarm
o
Positive (POS): NO contact is closed if no alarm, NC contact is closed if in alarm
•
Buzzer activation (BEEP):
o
OFF: buzzer disabled
o
ON: buzzer enabled
•
Alarm activation (ALAR):
o
OFF: alarm disabled
o
ON: alarm enabled
•
Alarm operating mode (EDGE):
o
Above threshold (RISE): alarm is on if measurement is greater than threshold 1
o
Below threshold (FALL): alarm is on if measurement is less than threshold 1
o
Outside thresholds (OUTS): alarm is on if measurement is less than threshold 1
or greater than threshold 2
•
Threshold 1 (THR1): Value of the threshold for above (RISE) and below (FALL)
alarm operating modes; value of the lower threshold for outside thresholds (OUTS)
alarm operating mode.
•
Threshold 2 (THR2): Value of the upper threshold for outside thresholds (OUTS)
alarm operating mode. The parameter appears only if the alarm operating mode
is set to OUTS.
•
Hysteresis (HYST): Value of the hysteresis for above (RISE) and below (FALL)
threshold alarm operating modes. The parameter does appear if the alarm operat-
ing mode is set to OUTS.
•
Alarm activation delay (T1): Value in seconds of the time delay for generating
the alarm. The alarm is generated only if the measurement exceeds the thresh-
old for more than the set time.
•
Alarm deactivation delay (T2): Value in seconds of the time delay for deactivat-
ing the alarm. The alarm is deactivated only after the set time has elapsed from the
disappearance of the alarm condition.
Note: the threshold values refer to the relative humidity measurement or the dew
point measurement depending on the humidity measurement selected (via P0/P1 serial
commands for HVAC40S17… models, via dip switch for the other models).
Summary of Contents for Delta OHM HVAC40 Series
Page 6: ...HVAC40 6 V1 1 HVAC40 17TO HVAC40 17TV ...
Page 23: ......
