AQS51/61-KAM COMBINED CO
2
-/TEMPERATURE DUCT SENSOR/CONTROLLER
5
EN0B-1023 GE02R0700
Fig. 3 Mounting of AQS51/61-KAM onto the duct
Mounting Instructions
1. Drill a
∅
25 mm hole for the sampling probe (Fig. 2,
Pos.1) into the duct of the selected mounting area.
2. Use the gasket (Pos. 2) to mark on the duct surface the
positions of the two holes for the mounting screws.
3. Drill
∅
4mm holes for the mounting screws (Pos. 5).
4. Insert the sampling probe (with the gasket) into the duct.
Position the probe relative to the duct so that the air inlet is
on the left hand side and faces toward the duct air flow.
For flow direction see also the arrow on the flow direction
label (Pos. 3).
NOTE:
In cases where the sampling probe can’t be
mounted with air flow direction from the left to
the right, reversed flow direction through the
sampling probe is possible, but influences the
response time slightly. Use the enclosed arrow
sticker to indicate on the probe the opposite and
correct air flow direction
5. Fasten the sampling probe and the sealing gasket onto the
duct with the two screws (Pos. 5).
6. Remove the cover of the aspiration box. The box has
several knock outs in two dimensions for PG7 (Pos. 8)
and PG9 (Pos. 7) cable entry bushings, To make a hole,
insert a screwdriver into the groove and hit firmly. Mount
for each cable a cable entry bushing into the aspiration
box and seal properly.
7. Mounting the aspiration box to the sampling probe is
performed by a snap-in bayonet fitting (Pos. 10). Insert first
the temperature sensor placed on the end of a 150mm
long soldered-on lead (Fig. 3, Pos. 2) into the air inlet to
ensure accurate temperature measurement. Turn the box
by approx. 23
°
ccw and stick the box onto the sampling
probe, so that the probe is fitted into the notches of the
box, then turn the box cw until stop (see Fig. 2).
8. Feed the cables through the cable entry bushings and seal
the cable entries carefully by turning the nut to prevent
ambient air suction into the aspiration box during
operation. Feed never more than one cable through a
cable entry bushing.
9. Select the required output ranges by setting the three
coding jumpers accordingly to Table 1. The default
settings are for 0...10Vdc outputs as indicated by the
darker jumper positions in Fig. 5. The outputs have to be
configured before the unit is connected to the power
supply.
Do not change jumper positions when power is on.
10. Connect the cable wires to the terminal block as listed
in Table 2.
11. Mount the cover.
Fig. 4 Printed Circuit Board
Fig. 5 Jumper positions
1
2
1 Hole with
∅
25mm
2 Temperature sensor with 150mm cable
