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Maintenance Level
A number of execution options are available from the
MAINTENANCE MENU (see Table 4). This level is accessed
only from the display mode in the OUT1 % selection. Simul-
taneously pressing two push buttons restricts access,
intended for competent trained service personnel only (see
Fig. 7). The ENTER command is issued by simultaneously
pressing MENU and ESC.
Function
Display
Time limit
line
1
FOUt
no
2
bCAL
yes
3
CAL
yes
1
The phrase "time limit" refers to an internal time-out which returns the LCD and the maintenance function back to normal.
2
ENTER is achieved by simultaneously pressing MENU and ESC.
AQS 51/61 CO2 / TEMPERATURE SENSOR WITH BUILT-IN CONTROLLER
Table 4. Maintenance functions available on the AQS61
1
For checking/adjusting connected auxiliary equipment.
Provides access to a sub-menu in which output selection XX = 1...4 is done by pressing
MENU. The selected output FOXX (= OUT1-4) is fixed via ENTER
provides 2 V /4 mA regardless of the position of the start point selection jumper, but
voltage or current according to the position of the jumper. OFF/ON is true for the relay and
open collector outputs.
FO 1,2 LO:
selected output is fixed to 2V / 4 mA
FO 3
LO:
relay contact is open
FO 4
LO:
OUT4 is 0V/open state
FOXX
HI:
selected output is fixed to 10V/20mA/closed state
CO
-sensor calibration with fresh air. An easy way to correct a zero-point error of a sensor.
2
The sensor needs fresh air (380...420 ppm CO
pushing ENTER
Zero-point calibration of the CO
instruction of zero-point calibration. The calibration must be confirmed by pushing ENTER.
Fig. 7. Push-button menu flow-chart for the AQS61
Always use the ESC button to return to the MENU selection
block in the left-hand portion of Fig. 7. Several pushes of the
ESC button may be needed to return to the DEFAULT mode.
The ENTER command (press MENU and ESC simultaneous-
ly) may result in the execution of functions with temporary or
permanent changes to parameters affecting sensor/controller
outputs and system operation.
Functional description
). The calibration must be confirmed by
2
sensor. The sensor needs zero gas. See the calibration
2
上海君琼空调科技有限公司，０２１－６０３４１３６６，ｗｗｗ．ｓｈｊｑｋｔ．ｃｏｍ
5
2
. For XX=1,2 LO always
EN1B-0189GE51 R0102
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