Hanwei BS03, Operation Manual, Page: 13 / 20

BS03 fixed gas detector operation manual
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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