Brief Introduction BH-4A portable multi-gas detector could detect combustible gas, O2 and other two types of toxic gases continuously and simultaneously. It is widely used in the area where explosion-proof is required or toxic gas leaks, like underground channels or mining industry, to protect the workers’...
Figure 2, the user through the ▲ ▼ keys to select whether to shut down, if you choose to shut down, the screen no longer display any information, the detector into the shutdown state. Shut down Fig. 2 Tel: 1300 850 862 | Email: info@aquagas.com.au - 3 -...
Page 5
" " key to mute, but still shows the alarm information. Until the new alarm is triggered, the buzzer is resumed and the alarm light, the vibrator are restored. Tel: 1300 850 862 | Email: info@aquagas.com.au - 4 -...
Page 6
"▲" key again or 2 seconds, the detector will resume to normal detection state, as shown figure 4 and 5: Date: 17.8.15 0%LEL 20.9%VOL Time: 09:38 0PPM 0PPM Battery: 3.8V 57% Fig 4. Fig 5. Tel: 1300 850 862 | Email: info@aquagas.com.au - 5 -...
Page 7
Press "▲" key to cancel the return menu interface, press "▼" key to save. After the success of the program, the normal detection interface of the "combustible gas" value will become 0. Tel: 1300 850 862 | Email: info@aquagas.com.au - 6 -...
Page 8
If you want to calibrate, please strictly follow the steps, the first zero set (oxygen must be in high purity nitrogen) and then gas calibration. Tel: 1300 850 862 | Email: info@aquagas.com.au - 7 -...
Page 9
If you do not need to set, press the " " key to save and return menu interface. Warning: This parameter has been set according to the relevant standards, if no other special requirements, the alarm value parameters Tel: 1300 850 862 | Email: info@aquagas.com.au - 8 -...
Page 10
Before charging, please turn off the detector. After you connect the charger correctly between the detector and AC power source, the detector will be turned on Tel: 1300 850 862 | Email: info@aquagas.com.au - 9 -...
Page 11
Minus gas level Gas sensor drift Calibrate zero point displayed Sensor fault Sensor fault Please contact the indication manufacturer or dealer to replace the gas senSor Tel: 1300 850 862 | Email: info@aquagas.com.au - 10 -...
Need help?
Do you have a question about the BH-4A and is the answer not in the manual?
Questions and answers