As it company policy to continually improve the products the Manufacturers
reserve the right to make any modifications thereto without prior notice. They
cannot be held liable for any damage due to malfunction.
06.05.14
HP76
Handbook
Humidity Surveyor
SL 4.0
Press ALARM (key lamp flashes):
This message will be displayed instead of the
% Rh Set Maximum humidity.
Press + or - to modify. Press ALARM to confirm.
HOW TO SET THE MAX HUMIDITY LEVEL
The MAX humidity value alarm intervention is signalled by
the blinking of the ALARM led (which keeps on blinking
during all the alarm delay time).
HP76
keeps control on the humidity ambient value and records the min/max daily value
up to 99 days cycle (and hourly values of the last 60 hours).
Afterwards the oldest daily and hourly records are automatically deleted by the new ones.
A humidity alarm value can be set so an output contact is activated.
INSTALLATION
How to connect the line
Connect 230V power line on terminals L-N. Protect supply with adequate fuse.
Alarm contact:
3-4 are closed for intervention
alarm or for black-out
4-5 are open for intervention
alarm or for black-out
HP76
LINEA 230V *
CONTATTO ALLARME
RH
V+
Note
: Accuracy of time base is 1%. During the black-out, timing is kept in stand-by. (i.e. in case
of 1 hour black out, on next days the recording interval will be 24+1 hours).
* Also available with 12V power supply.
When using our
HBAT
+
BA
power kit the unit can stand about 10 hours black-out.
RHR
4-20mA
humidity probe
8
10
Connection with
RHR
probe
To connect the
RHR
probes and the
HP76
module use two-wire cable 0,5 mm2
section. Max length = 100mt
RHR sensor cleaning:
1> Remove the filter carefully. Make sure the humidity sensor which is inside will be not
damaged.
2> Clean the filter in a distilled water cup.
3> Let the filter to became completely dry. Use an air dryer if necessary.
4> Wrap the filter back onto the sensor. Do not touch or damage the humidity sensor.
