SystemAir 145946, Инструкция по установке

Страница: 5 / 12

3 Connect the other end of the tubes to the differential
pressure transmitter’s inlet ports.
Caution
Be careful when connecting the hoses to
the inlet ports, the thin inner connections
of the inlets are very sensitive. The lid
should be kept closed while performing
the connections, or the thin tubing might
detach from the sensor.
a. Connect the red tube from the supply air duct to +
on one of the pressure transmitter.
b. Connect the blue tube from the extract air duct to -
on the other pressure transmitter.
+
+
4 Connect the cables according to 5.1 Wiring diagrams .
4.3 Description of the pressure
transmitter
1 2 3 4
A
B C
D
1
2
3
4
5
6
E
Figure show dip-switches to the left, position OFF.
A. DIP-switches
B. Push button
C. Status LED
D. Sensor 1
E. Terminals
4.3.1 To set the pressure range on
the pressure transmitter
Dip-switch setting Pressure range (Pa)
2 = OFF, 3 = OFF, 4 = OFF 0...50
2 = ON, 3 = OFF, 4 = OFF 0...100
2 = OFF, 3 = ON, 4 = OFF 0...300
2 = ON, 3 = ON, 4 = OFF 0...500
2 = OFF, 3 = OFF, 4 = ON 0...700
2 = ON, 3 = OFF, 4 = ON 0...1000
2 = OFF, 3 = ON, 4 = ON 0...1250
4.3.2 To zero point calibrate the
pressure sensors
1. Disconnect the pressure ports before zero setting.
2. Let the product warm up for 10 minutes before attempt-
ing the procedure.
3. Quick press the push button. Zero point calibration takes
about 5 seconds. The yellow LED will light up while the
zero point calibration is in progress.
4. If the yellow LED starts blinking during the zero point cal-
ibration, the procedure has failed. Ensure that the pres-
sure ports are open and try again.
5. If the procedure still fails, a sensor error is present and
the product must be replaced.
4.3.3 To reset to factory settings
• Long press (10 s) the push button
The red and yellow LED lights will flash alternating for the
duration of the operation. The product will then reset and
restart.
4.3.4 Status LED light
The red LED lights up when the power is on and goes out
when the built-in sensory circuit is ready for use.
Flashing red LED after power-up:
The product has lost important system settings and must be
taken back to the factory for reprogramming.
Steady red LED during normal operation:
The product is damaged and should be returned or
discarded.
3