OC-4000 Gas Inspection Controller with LED real-time display, optional 1/2/4/8 channels, 4-20mA signal input and relay linkage. For industrial inspection of Carbon Dioxide (CO₂), toxic and combustible gas, applied in chemical plant, mine, wastewater treatment plant.
Description:
OC-4000 gas detection controller with different channels for choice: 2 channels, 4 channels and 8 channels, it composed of the metal shell, Power key, main board, interface board, alarm, etc.
The display screen is the 0.8 inch Nixie tube, for displaying each gas concentration, also with the indicate light for the each channel. When press the key, if press less than 20ms, the key signal will be invalid, when the time between the 20ms~3s, the key signal is normal. If more than 3s, the key signal will be long-press.
Features:
Power supply: AC220±20%, 50Hz; output voltage is DC24V, consumption is less than 2W;
Quickly process the signal from gas detector and display the real-time data;
With the optional audible-visual alarm function, low alarm and high alarm with different frequency audible alarm;
Four group relay output, suitable for different application;
The communication is 4~20mA or RS485;
With the function of erasure, if mis-operation, pressing the reassure key will be ok;
The shell with the function of waterproof and resist compression;
Technical parameter:
| Item | Description |
| Display | LED display |
| Output voltage | AC220V±20%,50HZ |
| Consumption | <2W |
| Channel quantity | Two channels, Four channels, Eight channels |
| Detector power supply | DC24V, 300mA/channel |
| Input signal | 4~20mA (Optional RS485) |
| Relay output | AC220V/2A, DC24V/2A |
| Audible-visual alarm | Audible alarm >80dB(1m), visual is optional |
| Working temperature | -20℃~+50℃ |
| Working humidity | ≤95%RH(non-condensing) |
| Body material | Metal |
| Installation type | Wall-mounted |
| Dimension | L263mm*W180mm*H70mm(2/4 channels) L325mm*W220mm*H74mm(8 channels) |
| Weight | 4.0kg |
| Standards | GB 16808-2008 |
| Warranty | 12 months |
Applications:
Chemical plant, mine, wastewater treatment plant, boiler room, LPG station, warehouse, production workshop, for leakage inspection of Carbon Dioxide, toxic and combustible gas

Our After-sales service:
1. OEM service for LOGO, model, Technical Parameters, Operation manual, etc.
2. Free calibration service and provide calibration methods.
3. One year warranty and lifetime warranty
How To Cooperate With Us?
We look forward to collaborating with more overseas gas detector and air quality monitor distributors and partners to advance the development and application of gas detection and air quality monitoring technologies.
Our Address
No. 923, Floor 9, Unit 2, NO.78, Shangding Road, Zhengzhou, China.
Phone Number
+86 15981942832
Contact:Oceanus Team
Mobile/WhatsApp:+86 15981942832
Mobile/WhatsApp:+86 13673683950
E-mail:info@china-oceanus.com
Add:No.923, Floor 9, Unit 2, NO.78, Shangding Road, Zhengzhou, China