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AQS 51/61 CO2 / TEMPERATURE SENSOR WITH BUILT-IN CONTROLLER

EN1B-0189GE51 R0102

5

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.

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.

Table 4. Maintenance functions available on the AQS61

Function

line

Display

Time limit

1

Functional description

1

FOUt

no

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

2

. For XX=1,2  LO always

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

2

bCAL

yes

CO

2

-sensor calibration with fresh air. An easy way to correct a zero-point error of a sensor.

The sensor needs fresh air (380...420 ppm CO

2

). The calibration must be confirmed by

pushing ENTER

3

CAL

yes

Zero-point calibration of the CO

2

 sensor. The sensor needs zero gas. See the calibration

instruction of zero-point calibration. The calibration must be confirmed by pushing ENTER.

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.

Fig. 7. Push-button menu flow-chart for the AQS61

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Содержание AQS51

Страница 1: ...near control of e g mixed air dampers and fans The wall mounting housing has been designed with snap in features to minimize installation time The units can be directly connected to common VAV Variable Air Volume controllers Direct Digital Control DDC devices or standalone control systems The linear output functions are pre programmed as CO2 and temperature transmitters In addition the AQS51 and A...

Страница 2: ...ert dowel into the holes 3 Position the wall plate over the holes and pull the wires through the wiring opening 4 Loosely insert the mounting screws into the holes and tighten them see Fig 2 Fig 2 Mounting of the wall plate Mounting System Unit onto Wall Plate 1 Bend the wires to the top to allow wiring connections to the terminals 2 Engage first the top tabs of the sensor controller pro tection c...

Страница 3: ...ary use separate floating transformers for sensor and controller DDC system 1 Connect the correct wires to the terminals and securely tighten each terminal screw Follow the actual job wiring diagrams if available or refer to Table 2 for terminal designations A sticker is located on the inside of the terminal cover that identifies the terminals see Fig 5 All wiring must comply with local electrical...

Страница 4: ...or OUT4 when it is used as an open collector output see Table 1 If different outputs are needed for the application these have to be configured before the unit is powered up To select alternative output ranges position the four jumpers as required for the application Each jumper selection is independent from the others except in the case of the Start point selection jumper which affects both linea...

Страница 5: ...uipment 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 2 For XX 1 2 LO always 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 f...

Страница 6: ...d can be compared with the actual output value measured with a multimeter Test Gas Verification Insert 4 mm plastic tubing in the test gas inlet at the bottom of the wall plate The plastic tubing should be inserted as far as possible into the inlet Flow test gas at a rate of about 0 5 liter minute Check the display or OUT1 with a multimeter to read the CO2 value when it has stabilized NOTE The sen...

Страница 7: ... speaking the AQS51 61 is maintenance free An internal self adjusting calibration function takes care of normal long term drift associated with the CO2 sensor To ensure the highest accuracy a time interval of max five years is recommended between CO2 calibrations unless some special situations have occurred A zero point calibration can be performed using the push button functions for AQS61 or for ...

Страница 8: ...ker Road Böblinger Straβe 17 manufacturing P O Box 524 North York Ontario D 71101 Schönaich location certified to Minneapolis MN 55408 0524 M2H 3N7 Germany USA Canada http www honeywell com http www honeywell ca http europe hbc honeywell com EN1B 0189GE51 R0102 printed in Germany Subject to change without notice Fig 8 Positioning the temperature sensor the black dot enlargement at right 上海君琼空调科技有限...

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