Hanwei BS03 User manual

BS03
Fixed gas detector
Operation manual
Read this manual carefully before using the device
Ver:HWWM160617CG

Safety information
1. Before using the device, please first carefully read and follow the
following information to operate the device:
2. Please don't use the defective detector. Before using, please check if
there is crack or spare part missing. If yes, please contact the seller.
3. In order to keep the accuracy, please calibrate it once before the first
time using.
4. Working voltage of the detector is DC18V to DC30V and recommended
voltage is DC24V. The voltage exceeding DC30V will damage the
detector.
5. Before using, please make sure the housing is fixed.
6. There should be no speedy gas flow on the installation place. Otherwise,
it will influence the detection result.
7. Please don't expose the device to the gas which concentration is
exceeding the range. Otherwise, it will influence the accuracy and
shorten the sensor life.
8. Please don't paint the sensor parts or detector.
9. Only sensor spare parts which are specified for BS03 are allowed to be
used.
10. It's suggested calibrate the sensor once every 6 months.
11. In order to avoid damage human beings, please operate it when power
off. Before opening the cover, make sure there is no mixture gas of
combustible gas and air. Otherwise, it will possibly cause fire or
explosion.
12. Please avoid water or dust to come into the housing.
13. Please don't expose the device to the environment which has electric
shock, strong magnetic field or serious continuous mechanic shocking.
14. When no using, please take out the battery from the remote controller.
15. Installation must abide by the national and local regulations.
16. It's forbidden to disassembly, adjust or repair the device without
permission.
17. All the operation inside the device must be carried by professional
persons.

Table of content
1. BRIEF INTRODUCTION........................................................................... 1
2. MAIN TECHNICAL SPECIFICATION.......................................................... 1
3. STRUCTURE........................................................................................... 2
4. INSTALLATION ....................................................................................... 3
4.1 INSTALLATION POSITION .............................................................................3
4.2 DIMENSIONS............................................................................................4
4.3 INSTALLATION METHODS.............................................................................4
5. WIRE CONNECTION............................................................................... 6
6. OPERATION........................................................................................... 8
6.1LOW ALARM SETTING.................................................................................9
6.2HIGH ALARM SETTING ................................................................................9
6.3ZERO TRANSLATION ...................................................................................9
6.4SINGLE POINT CALIBRATION.......................................................................10
6.5 ADDRESS CODE SETTING ...........................................................................10
7. SENSOR REPLACEMENT ...................................................................... 11
8. TROUBLE SHOOTING GUIDANCE ......................................................... 13

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1. Brief introduction
BS03 fixed gas detector, adopting high-quality catalytic gas sensor and
SMD arts and crafts, has advantages of good reproducibility, disturbing-proof
against temperature and humidity, long life-span and easy operation.
The signal output of BS03 is standard 4-20mA. It is widely used in
refineries, chemical plant, LPG station, gas boiler, and Spray-Paints etc where
gas leakage easily.
2. Main technical specification
Gas
Range
Resolution
Calibrating gas flow
LEL
0-100%LEL
1%LEL
500±50ml/min
CH4,
C3H8
0-100%LEL
1%LEL
500±50ml/min
CH4
0-5%VOL
0.1%VOL
500±50ml/min
CO
0-1000PPM
1PPM
200ml/min
H2S
0-100PPM
1PPM
200ml/min
NH3
0-100PPM
1PPM
500±50ml/min
CL2
0-20PPM
0.1PPM
1000±50ml/min
H2
0-100%LEL
1%LEL
500±50ml/min
O2
0-30%VOL
0.1%VOL
300±50ml/min
H2
0-1000PPM
1PPM
200ml/min
SO2
0-50PPM
0-20PPM
1PPM
600±50ml/min
CO2
0-6000PPM
0-5000PPM
1PPM
500±50ml/min
NO
0-1000PPM
1PPM
200ml/min
NO2
0-20PPM
0-50PPM
0.1PPM
1000±50ml/min
HCN
0-100PPM
1PPM
200ml/min
Sensor type: Catalytic, electrochemical or NDIR gas sensor
Gas sampling: Natural diffusion
Power supply: DC24V±25%
Power consumption: ≤3W

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Working method: Continuous monitoring
Accuracy: ≤±5%F.S.
Indication method: 4-digit LED light
Condition display: 3 LED lights indicate fault alarm, L-alarm and H-alarm
Operation: Infrared remote control
Response time: ≤30s (LEL) / ≤60s (toxic gas)
Working temperature: -40℃～70℃(LEL) / -20℃～50℃(toxic)
Working humidity: ＜95%RH
Explosion-proof: Ex dⅡCT6
Protection: IP65
Pressure Limit: 86-106kPa
Signal output: 4～20mA or RS485, 2 relay output
Install screw thread: G3/4"
Cable dimension: ≥1.5mm2×3
Transmission distance: ≤1000m
Dimensions: l×b×h, 210×200×105mm
Weight: about 2100g
3. Structure

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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. Gas density more than
0.97kg/CBM, then it's heavier. Gas density less than 0.97kg/CBM, then
it's lighter.
3) The position should be far away from shocking, shattering, strong
electromagnetic interference. Around the position, there should be at
least 0.3m empty place.
4) The position should be within 1m around the possible gas leakage area,
such as valve, pipe connection point, gas outlet place. Please try to
install it nearer to the above places, but avoid influencing the working of
the other equipment. Please avoid the environment of high temperature
and humidity. Also please keep it from water swashing, oil and
mechanical damage. Please also consider the convenience of
maintenance and calibration.
5) For large scale detection, we suggest install 1pc every 10-12 square
meters, so as to get the best detection result.
No.
Name
No.
Name
1
Protection cover
9
Pipe connector
2
Decoration
10
Display screen
3
Lower shell
11
Wire connection hole
4
Upper shell
12
H-alarm LED
5
Wire connection hole
13
L-alarm LED
6
Pipe joint
14
Fault / Power LED
7
Remote control receiving
window
15
Ground nut
8
Fixing hole

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4.2 Dimensions
4.3 Installation methods
Note: Fix the detector with sensor head downwards!
According to the installation place, you can fix the detector onto the wall or to
the gas pipes. Please follow the details as below:
Method 1(thread butted type fixing method): If there are transverse
or vertical siphon with G3/4 Screw thread in installed places, please
connect the two terminals of the detector to the gas pipes. Then connect
and screw down the pipe screw thread nut and fix it tightly.

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Method 2: If the user needs to install the detector onto the wall, please
choose an appropriate place on the wall according to the detector
dimensions. Then fix the detector by using 3 pieces of M6×70 bulge
bolts in the corresponding installed holes.

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Method 3: If there is 1" to 2″(diameter) pipe, the user can use 2 U-type
bolts to fix the hanging plate on the pipe, and then fix the detector onto
the plate. Or, the user can first fix the detector onto the plate and then fix
the plate on the pipe.
5. Wire connection
Note: Electricity power must be cut off before wire connection.
Wire connecting steps:
1) Screw down the cover in counter-clockwise way. Then use a cross-type
screw to screw down the 3 bolts and take off the display PCB.
2) Screw down the pipe connector in counter-clockwise way. Take out the
explosion-proof pad. In turns, put 3-line wire to the internal of the
enclosure through the pipe connector, compaction circle, air-proof
closing plug and the wire connection hole. According to the
explosion-proof requirement, please don't take out the explosion-proof
closing plug from the unused wire connection holes. Please don't throw
away any part inside the enclosure or the PCB.
3) All the wires should be connected to the terminals. The terminal
instruction is as follows:

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A. If the output signal is 4-20mA signal, then the terminal definitions are as
below:
NO.
mark
function
spec
1
L-Alarm
Low alarm output
Switching value
2
L-Alarm
Low alarm output
3
24V
Power input
DC24V±25%
4
GND
Power input
5
Iout
Current ouput
4～20mA
6
NC
—
—
7
H-Alarm
High alarm output
Switching value
8
H-Alarm
High alarm output
9
24V
Power input
DC24V±25%
10
GND
Power input
11
Iout
Current output
4～20mA
12
NC
—
—

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B. If the output signal is RS485 signal, then the terminal definitions are as
below:
4) After the correct wire connection, take out the useless wire from the
enclosure. Then tighten the compaction circle, rubber air-proof circle and
wire. Explosion-proof soft tube can also be connected with the device directly.
Note: The size of the connection wire between the controller and detector
should not be less than 6mm, and the distance should be note more than
1000m.
5) After checking all the connection well, install the display PCB and the
front cover. Make sure O-type circle is put on and connected with the cover
tightly.
6. Operation
On the remote controller, there are totally five buttons as follows: “Setup”,
“Confirm”, “Cancel”, “+” and “-”.
Warning: It's forbidden to replace the batteries for the remote control in
working area.
Note: “Setup”, “Confirm” and “Cancel” are single-spring buttons. These
buttons can only be triggered once even if you press them continuously, and
the interval between two springs should not be less than 1 second. “+” and “-”
are continuous-spring buttons and can be triggered by continuous pressing.
Setting can only be affected after pressing “Confirm”. After setting, press
“Cancel” to return to the normal mode. Effective setting can be kept till the
next setup, even if without power.
NO.
mark
function
spec
1
L-Alarm
Low alarm output
Switching value
2
L-Alarm
Low alarm output
3
24V
Power input
DC24V±25%
4
GND
Power input
5
A
Data communication
RS485A
6
B
Data communication
RS485B
7
H-Alarm
High alarm output
Switching value
8
H-Alarm
High alarm output
9
24V
Power input
DC24V±25%
10
GND
Power input
11
A
Data communication
RS485A
12
B
Data communication
RS485B

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Display in different status:
1) Normal status: Display the detecting result of the gas concentration
2) Sensor fault status: Screen display “E-02”; yellow LED is on.
3) High concentration protection status(only available for LEL type):
Screen display “100”, 3 LED lights are all on, electrical current output
21.3mA.
4) Low alarm status: red L-ALARM LED light is on
5) High alarm: red L-ALARM LED light and red H-ALARM LED lights
are on.
6) Low alarm setting: “F--1”
7) High alarm setting: “F--2”
8) Zero calibration: “F--3”
9) Single point calibration: “F--4”
10) Factory setting: “F--5”(Unavailable to the customers).
6.1 Low alarm setting
In normal status, press “Setup” once and it displays “F-1”. Press
“Confirm”, it displays the default low alarm. This figure can be adjusted by
pressing “+” or “-”. After setting completed, press “Confirm” to save the
setting. The setting will be effective immediately after exit. The screen will
display “F-1”. You can press “setup” to make the other settings or press
“Cancel” to exit to return to the normal status.
6.2 High alarm setting
In normal status, press “Setup” twice and it displays “F-2”. Then press
“Confirm”, it displays the default high alarm. This figure can be adjusted by
pressing “+” or “-”. After setting completed, press “Confirm” to save the
setting. The setting will be effective immediately after exit. Then the screen
will display “F-2”. User can press “setup” to make the other settings or press
“Cancel” to return to the normal status.
6.3 Zero translation
After the detector have been used for a long time, or the detector was
put in a new type environment, it may not display “0”in clean air, this
phenomenon is called “zero drift”, zero drift is normally caused by big
change of temperature or humidity, and this phenomenon can be corrected
by zero translation.
Zero translation can do simple correction for gas detector, but
comparing with calibration, it cannot correct the sensitivity deviation after
long time use. So in principle, please do zero translation for correction only
when calibration is not convenient to do, and proceed zero calibration every
half year even zero translation have been made.
Zero translation method: after the detector works more than 20 minutes,

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put it into clean air (zero translation can not be done when there is other gas
in the environment, if the detecting gas is O2 or CO2, zero translation must
be done in pure N2 gas environment), in normal working status, press
“Setup” three times, screen will display “F-3”, then press “Confirm”, it
displays “XXXX” (The A/D value of the present zero point). After this figure
on the screen is steady, press “Confirm” to remember this figure to complete
zero translation. The translation will be effective immediately after exit.
Then the screen displays “F-3”. The user can press “setup” to make other
setting or press “Cancel” to return to the normal status.
6.4 Single point calibration
Detector’s calibration must be operated by professional engineers and
using standard gas, it is forbidden to calibrate the detector privately. In order
to keep the detector’s accuracy, we suggest calibrate the detector at least
once every half year.
Calibration method: After the detector has been working for more
than 20 minutes, input standard gas (gas concentration is half of the
detector’s detecting range) into the detector. Then press “Setup” four times in
normal working status, the screen will show “F-4”, then press “Confirm” and
it will display the default calibration point. Press “+” or “-”to change the
calibration point to be same with the input gas concentration level, then
press “Confirm” to remember this figure, it will display “XXXX” (The A/D
value of the present gas environment). After the A/D value on the screen is
steady, press “Confirm” to remember this figure for calibration. The
calibration operation will go into effect immediately after exit. After then the
screen will display “F-4”. The user can press “setup” to make other settings or
press “Cancel” to return to the normal status.
Note: Please don't carry the above calibration when the detector is
working or there is no standard calibration gas.
6.5 Address code setting
If the detector’s output signal is RS485 signal, the detector’s address
code can be set as the following:
Address code switching locate inside the detector, you must cut off the
power and open the cover only then you set the switching.
The address code is set by the dial switch from second switch to the
eighth switch, and they are calculated by binary method, right side are low
bit, left side are high bit. Switch at up position “ON”means 1, at low
position “OFF”means 0. From right to left, every switch means in turn 1 、
2、4 、8 、16 、32 、64. Calculating formula: ADD=
X2×64+X3×32+X4×16+X5×8+X6×4+X7×2+X8×1. (X2 to X8 only can be

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“0”or “1”).
For example: from low bit to high bit, second switch and fourth are at
up position “ON”, then X7=X5=1, other bits are all 0, so the address code
shall be calculated as: ADD=0×64+0×32+0×16+1×8+0×4+1×2+0×1=10
You can find the address code settings at the last pages of this manual.
The first code switch only can be used during maintenance operation,
but it must be at “ON”position normally. To same one controller, there
cannot be more than one detectors which are set at same address code.
7. Sensor replacement
In normal working environment, catalytic sensor’s using life is 3 years,
electrochemical sensor’s using life is 2 years. When the sensor life is overdue,
the detection result may be not accurate.
To replace the sensor, please first cut off the power but it won’t be necessary
to open the detector’s housing, only need to open the sensor assembly.
1. Take off the calibration cover in anti-clockwise.
2. Pull out the decoration part downwards.
3. Screw off the top thread from the sensor protection cover.
4. Take off the protection cover in counter-clockwise.
5. Take out the old sensor.
6. Install new sensor, make sure the electric contact match to each contact
positioning hole.
7. Then install in turns protection cover, top thread, decoration part and
calibration cap.
8. Power on the detector and calibrate the detector.

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8. Trouble shooting guidance
Problems
Possible reason
solution
NO response to gas
Sensor damage
Replace sensor
Electrical fault
Contact with seller
Abnormal
connection with
controller
Wiring fault
Check the wiring
Electrical fault
Contact with seller
E-01
Calibration fault
recalibrating
E-02
Wiring fault, connection fault or
sensor fault
Reconnect the wire or
replace sensor
E-04
Sensor drift
Replace sensor
E-06
System’s parameter fault
Reload system parameter

Attachment 1
Address code settings