Atal AT-VLZ-01D-RS User manual

AT-VLZ-01D-RS
A062
ATAL B.V.
Ampèrestraat 35-37
NL-1446 TR PURMEREND
Postbus 783
NL-1440 AT PURMEREND
T([phone]
F([phone]
E[email protected]
Iwww.atal.nl

2
air flow
air duct
风道
气流方向
Mounting and Wire Connection
Notice the supply power voltage of the unit: 24VAC/VDC. Do not install it on voltage higher than marked.
Firstly, prepare a flower head screwdriver and open the screw of the housing. (see fig.1)
Open the underside bigger notch to pass through connecting wires (see fig.2)
Connect wires to terminal strips (see fig.3). Make sure wiring connection correct and secure.
Put the probe into the air duct. Please notice the direction of the filter and the air flow are opposite. (see fig.4).
Place the unit at a desired location and fix it;
Finally tighten the screw of the transmitter housing to close the cover.
INSTRUCTIONS
Fig.1
Fig.2
Fig.3
Fig.6-a
Fig.6-b
CO2
power
switch
CO
2Detector/Controller
Fig.5
▲(UP)
▼(DOWN)
SWITCH
POWER
Fig.4
RS-485 2
1
3
V/A
G+
GO
AN
B
A
4
5
2
1
3
V/A
Power supply
24Vdc
Power supply
24Vac GND
V/A
V/A
G+
GO
AN1
AN2
AN3
H
CO2
T
B
A
4
2
1
3
G+
GO
ON
OP
Power supply
24Vdc
Power supply
24Vac GND
Power supply
24Vdc
Power supply
24Vac GND
RS-485
B
ARS-485
4
2
1
3
G+
GO
ON
OP
Power supply
85-240Vac
B
ARS-485
24V

3
Instructions
1. Important attention: always cut off the power before open and clean the controller.
2. For button indication, please check fig. 5.
3. Please see fig.6 for LCD screen display. Fig. 6-a is LCD display in normal operation state, while fig.6-b is LCD display in
the state of relay control point setting. CO2 measurement will display on the LCD, and temperature and humidity will
display on the upper line if select –RH option.
4. Press ▼or ▲ button to preset two CO2 values, one high CO2 point will be used to control turning-off the relay and
another low CO2 point will be used to control turning-on the relay.
5. Press switch button to switch between low point setting and high point setting with -H or -L icon appearing on the
upper line respectively. As -H appearing the high CO2 point can be set and the setting value will flash during setting.
As -L appearing the low CO2 point can be set and the setting value will flash during setting. Press ▼or ▲ button
over 2 second, the setting value will adjust quickly. After 10 seconds the flash value will stop and the setting value is
confirmed.
6. After the unit is on, it will count down 60 seconds before it shows stable measurements.

4
Advanced Setup
Hold down switch button for 10 second, you could enter "advanced setup" interface, -XX will appear as a sign, hold down switch
button again for 10 second, you could go back to normal state, it will also go back to normal state after power failure.
Press switch button to select parameter and set up its value by press ▼or ▲.
LCD
Parameter
Range of setup
Default
-1
Temperature modification
(only available for models with -TH options)
+-3.0 °C/+-6.0F
0.0 °C/F
-2
Humidity modification
(only available for models with -TH options)
+-5.0%RH
0.0%RH
-3
CO2 modification
+-200 ppm
0ppm
-4
Temperature unit
(only available for models with -TH options)
0-Celsius 1-Fahrenheit
0
-5
Relay control mode
0- increase CO2 (connect to a generator)
1- decrease CO2 (connect to a ventilator)
1
-6
Backlit setting
1-backlit on press any button 2-always on
2
-7
State of the controller after being put on power or after power failure
0- Turn off 1- Turn on 2- Keep on previous state before power failure
2
-8
MODBUS RS485 communication address
(optional)
1~255
1
-9
RS485 Communication rate (optional)
4800bps, 9600bps, 14400bps,
19200bps, 38400bps
19200
-10
RS485 check-bit / stop-bit (optional)
0- 0-no check, one stop bit; 1- no check, two stop
bits;
2- odd check, one stop bit; 3- even check, two stop
bits
1
-11
Warming time
1~600
30
-12
The maximum limit of CO2 measurement
1~10000ppm
2000
-13
CO2 sensor self-calibration
1-allowed 2-not allowed
1
-14
The altitude level for using
0~5000 feet
0
-15
CO2 single point(400ppm) calibration
to calibrate the CO2 sensor at 400ppm, "1" means
start calibration, "-----" will appear during calibration
process; "0" means calibration is finished
WARNING: you need to put the unit in a standard
CO2 gas environment of 400ppm for the calibration,
and the previous CO2 sensor state will NOT be
restored after calibration, so please be very cautious
to use this function
0
Notice: there are 2 jumpers on the PCB boards, which are invalid for this unit.

5
Specifications
CO2Sensor
Non-Dispersive Infrared Detector (NDIR)
Measurement Range
0～2,000ppm (default)
Accuracy
±40ppm + 3% of reading @22 °C(72℉)
Stability
<2% of full scale over the life of the sensor
Calibration
Self-calibration system
Response Time
<5 minutes for 90% step change at low duct speed
Duct Air Velocity
0~450m/min
Warm up time
2 hours (first time) / 2 minutes (operation)
Temperature & Humidity Sensor
(only available for models with -
TH options)
Temperature
Relative Humidity
Sensing element:
Band-gap-sensor
Capacitive humidity sensor
Measuring range
-20 °C~60 °C
0 -100%RH
Accuracy
±0.5°C (20~40 °C)
±4.5%RH (25 °C, 15%-85%RH)
Display resolution
0.1 °C
0.1%RH
Stability
±0.1°C per year
±1%RH per year
General items
Power supply
24VAC/VDC
Consumption
1.8 W max. ; 1.0 W avg.
LCD display
Display CO2 measurement
or CO2+ temperature& humidity measurements
Dry contact output
1xdry contact output for CO2, 3A (230VAC/30VDC)rated switch contact
Default CO2 point setting to turn on the relay : 820ppm
Default CO2 point setting to turn off the relay: 780ppm
Modbus RS485 Interface
(optional)
19200bps, 15KV antistatic protection.
Wireless module (optional)
ZigBee 2.4G short distance wireless communication
Operation conditions
0°C~50℃; 0~99%RH, non condensing
Storage conditions
10~50 °C/ 10~70%RH
IP class / Net weight
IP40/ 280g
Standard Approval
CE-Approval
Version
V.A062