19
4. Insert the remaining section of tube into the OUTLET or
pressure side of the pump.
5. Cut the tube and insert the other end into the lower hose
barb on the desiccator.
6. Cut an appropriate length of tubing and connect the
desiccator upper hose barb to the upper hose barb on
the chamber.
7. Plug the line cord from the pump into the “DECREASE”
outlet on the rear of the controller.
8. Plug the Dehumidifier into the AC Output receptacle on
the rear of the Controller. Plug the Controller line cord
into the appropriate power outlet (115 or 230 VAC).
NOTE:
A 230 VAC pump must be used with a Controller
configured for 230 Volts. The pump will be fitted with a
standard North American 3-prong plug to fit into the
DEHUMIDIFY outlet on the rear panel
The System is now ready to dehumidify the test chamber
.
3.2.4 Operation
1.
Turn on the Controller and allow it to warm up for approximately
5 minutes for the sensor to stabilize.
2.
Depress the black momentary READ/SET PT pushbutton and
adjust the ADJUST control for the desired R.H. set point as
indicated on the LCD display. A small (1/8”/3mm wide blade)
screwdriver is required. When the correct reading is obtained,
release the switch. The display will then read the measured
humidity level.
3. If the desired humidity is lower than the ambient humidity
measured, turn on the DEHUMIDIFY function by depressing the
Green push-on-push off switch to the ON position. The Green
DEHUMIDIFIER light will come on indicating that the
Dehumidification System has been activated.
4. As the humidity level in the test chamber begins to drop it will be
detected by the Humidity Sensor and displayed on the LCD
meter. When the humidity level in the chamber has been
reduced below the set point, the Green LED light will go out
indicating the Dehumidification System has been turned off. As
the humidity level in the chamber gradually begins to increase
above the set-point level, the Dehumidification System will turn