AQS51/61-KAM COMBINED CO
2
-/TEMPERATURE DUCT SENSOR/CONTROLLER
EN0B-1023 GE02R0700
2
MODELS
Type
Order Number
CO
2
and Temperature Duct
Sensor without LCD display
AQS51-KAM
CO
2
and Temperature Duct
Sensor with 4-digit LCD display
AQS61-KAM
ACCESSORIES
Description
Order Number
Service Software; 3.5” Diskette
(for changing the sensing range, the
parametrization and the post calibration)
AQS-USP22
Testset
(consists of a portable gas generator for
zero-position calibration, pump, packing,
3m tube, battery and transformer)
AQS-F0005
RS Cable with built-in electronics and
adapters
AQS3/4 or
AQS31/41
TECHNICAL DATA
Power supply
24Vac
±
20%; 50/60Hz or 24Vdc
±
20%
Power consumption
2W
Sensor life expectancy
>
15 years
Maintenance interval
5 years
Self diagnostics
Complete power/sensor/analog outputs internal test
Status LED indication
Yellow = Maintenance required; Red = Relay activated
Power-up time
≤
1 min
Ambient operating limits
- Temperature
0...50
°
C
General
- Humidity
0...95%rh (non condensing)
Operating principle
Non-dispersive infrared (NDIR)
Gas sampling mode
Diffusion and
∅
3 mm gas inlet push-on barb
Response time
2 min (diffusion) or 10 sec (0.2 ltr/min gas flow)
Measurement range
0...3000 ppm
Converting range
0...2000 ppm = 0...10 Vdc (factory setting)
or 2...10 Vdc / 0...20 mA / 4...20 mA
Accuracy
±
1% of measurement range,
±
5% of reading
Pressure dependence
+
1.58% of reading per kPa deviation from normal pressure
100 kPa
CO
2
- Measurement
Annual zero drift
<
±
1% of measurement range
Operating principle
Thermistor
Measurement range
−
10...60
°
C
Converting range
0...50
°
C = 0...10 Vdc (factory setting) or 2...10 Vdc / 0...20
mA / 4...20 mA
Temperature
Measurement
Accuracy
±
0.2 K
Settings and configuration with
Service Software AQS-USP22
- Throttling range CO
2
100...800 ppm
- Throttling range temperature
1...10 K
P
++++
I control
- Reset time adjustment ranges
2...500 sec (factory setting: 300 sec)
