HENAN HANWEI ELECTRONICS CO., LTD WD6200 Manuale utente
HENAN HANWEI ELECTRONICS CO., LTD
WD6200
Fixed gas detector
Operation manual
Read this manual carefully before using the device
Ver：HWWM161229CG
SAFETY INFORMATION
Before using this product, please read the following safety instruction
carefully and comply with related operation regulation strictly.
Please don't use defective detector. Before using, please check if there is
crack or spare part missing. If yes, please contact to the seller.
WD6200 detector had been calibrated in manufacturer’s factory,
however, it is still suggested to calibrate it at your working spot before
using it.
In order to assure the user’s safety and assure the detector work
normally, the users are suggested to do impact test on the detector with
high concentration level-known gas (put the detector into the target gas
whose concentration is higher than the high alarm level) If the displayed
value is exceeding the correct range, please calibrate the detector.
Please don't expose the device to the gas whose concentration is
exceeding the range. Otherwise, it will influence the accuracy and
shorten the sensor life.
Please cut off power supply before open the detector. Please don’t open
the detector or replace the sensor in the places where danger gas
possibly exists.
Installation must abide by the national and local regulations.
The detector must be earthed, so as to avoid RF interference.
Please don’t paint the detector.
Please use the specified spare parts during maintenance and repairing.
Please don’t put the gas sensor into organic solvent or flammable
solution.
Please don’t expose the detector to high concentration gas which is
exceeding the detection range. Otherwise, it will shorten the sensor life.
Please don't expose the device to electric shock, strong magnetic field or
serious continuous mechanic shocking.
1
Table of content
1. BRIEF INTRODUCTION.................................................................................. 2
2. TECHNICAL SPECIFICATION .......................................................................... 2
3. STRUCTURE.................................................................................................. 4
4. INSTALLATION.............................................................................................. 5
4.1 INSTALLATION POSITION .....................................................................................5
4.2 INSTALLATION DIMENSION..................................................................................5
4.3 INSTALLATION METHOD......................................................................................6
5. WIRE CONNECTION...................................................................................... 9
6.POWER ON.................................................................................................. 12
7.MENU OPERATION ...................................................................................... 13
7.1 REMOTE CONTROLLER .....................................................................................13
7.2LOW ALARM SETTING.......................................................................................15
7.2 HIGH ALARM SETTING .....................................................................................15
7.3 ZERO TRANSLATION.........................................................................................15
8.CALIBRATION .............................................................................................. 16
9. SENSOR REPLACEMENT.............................................................................. 17
10. TROUBLE SHOOTING GUIDANCE............................................................... 19
2
1. Brief introduction
WD6200 adopt high quality gas sensor and MCU technology, has good
repeatability and stability. It is widely used in the fields of oil processing
plants, chemical factories, metallurgy, power plants etc. With 4-20mA signal
output, it can be connected with the control panel of KB2160.
Main features:
High sensitivity, stable performance, long life span;
4-20mA signal output;
Relay output of low alarm, high alarm and fault alert;
High quality LCD screen can work in -40℃environment.
Setting through remote controller, easy for operation;
Specific installation rack, easy for the installation;
Sensor module design, easy for maintenance and replacement;
Indication functions of re-calibration remind and sensor overdue.
2. Technical specification
Sensor type: Catalytic or electrochemical or infrared
Gas sampling: Natural diffusion
Working voltage: DC 24V±6V Consumption: ≤5W
Accuracy: ≤±5%F.S
Status indication: Yellow LED: Fault Red LED: gas leak alarm
Response time (t90): ≤30s (LEL)/ ≤60s (Toxic gas / O2)
Temperature: -40℃～70℃(LEL) / -20℃～50℃(toxic gas / O2)
Humidity: ≤95%RH
Explosion-proof: ExdⅡCT6Gb
Ingress protection: IP65
Environment pressure: 86kPa～106kPa
Signal output: 4-20mA output Relay output
3
Screw thread: G3/4
Cable requirement: 3-line, ≥1.5 mm2,
Cable outer diameter between 6mm and 12mm
Distance to the panel: ≤1000m
Sensor life:
Catalytic 3 years; Electrochemical: 2 years; Infrared: ≥ 5 years
Dimensions and weight: 293 mm×263mm×108mm
Weight: about 2.7kg
Target gas
Detection range
Resolution
Standard gas flow
CH4
0～100%LEL
0～5%VOL
0～100%VOL
1%LEL
0.1%VOL
500ml/min
C3H8
0～100%LEL
1%LEL
500ml/min
H2
0～100%LEL
1%LEL
500ml/min
C4H10
0～100%LEL
1%LEL
500ml/min
CO
0～1000ppm
1ppm
200±50ml/min
H2S
0～100ppm
1ppm
200±50ml/min
O2
0～30%VOL
0.1%VOL
300±50ml/min
NH3
0～100ppm
1ppm
400±50ml/min
SO2
0～500ppm
1ppm
600ml/min
NO2
0～20ppm
1ppm
1000±50ml/min
4
3. Structure
NO.
Name
NO.
Name
1
Top thread
9
Front cover
2
Earth nut
10
Installation rack
3
Thread connector
11
Top thread
4
adaptor
12
Sensor assembly
5
Cable protector
13
Name plate
6
ALARM indicator
14
chains
7
Remote control receiver
15
LCD screen
8
FAULT indicator
WD6200 Structure schematic drawing
5
4. Installation
4.1 Installation position
1) For petrol gas, oil gas and alcohol gas etc. which is heavier than the air,
the position is 0.3m-0.6m higher than the ground.
2) For natural gas, CH4 etc which is lighter than the air, the position is
0.5m-2m higher than the gas source.
Note: Gas density more than 0.97kg/CBM, then it's heavier.
3) Gas density less than 0.97kg/CBM, then it's lighter.
4) Choosing suitable position should first consider the air flow speed and
direction, relative position to the potential leakage source and air
ventilation. The installation be convenient for maintenance and
calibration.
5) The position should be far away from shocking, shattering, strong
electromagnetic interference. Around the position, there should be at
least 0.5m empty place.
6) There should not be fast air blow. Otherwise, it will influence the testing
result.
4.2Installation dimension
Installation rack
6
4.3 Installation method
When installing the detector, the sensor head should be downwards, so as to
avoid dust or rain falls onto the sensor and assure the target gas can be better
detected
According to the working place situation, the user can choose a suitable
method of the following 3 methods.
Wall mounted type installation
1). Drill suitable screw holes on the wall according to the installation rack.
2). As shown in the below picture, assemble the installation rack and tighten
them by the M5 screws. Please remember to add the light spring washer onto
the screws.
Unit: MM
WD6200 Dimension
7
3) Fix the installation rack assembly tightly on the wall through M6
expansion bolts.
4) Hang the detector onto the rack. Please make sure the hanging is firm and
steady. Then fix both the detector and the rack by using 2pcs of M5 screws.
1 fixed mount
2 Installation rack
3 light washer
4 screws
1 WD6200 detector
2 hanging accessories
3 fixing mount
4 installation rack
5 M5 screws（2pcs）
6 wall
Indice
