Description
This fixed ammonia NH3 gas detector OC-F08 is a professional industrial toxic gas transmitter for general industrial gas safety monitoring. With independent air chamber design, it allows quick sensor replacement without recalibration, effectively reducing maintenance workload and operation cost.
It adopts high-precision electrochemical sensor to achieve 24-hour continuous online monitoring of ammonia concentration. Built with explosion-proof construction and IP66 protection grade, it supports audible-visual alarm and relay output. Multiple signal outputs including 4-20mA and RS485 are optional, compatible with PLC, DCS and alarm host systems. Diffusion and pump-suction sampling modes are selectable, delivering stable and reliable detection performance in diverse complex industrial environments.
Features：
- 4-20mA standard analog signal and RS485 digital signal output, 200~ 1000HZsignal output, relay output (optional);
- Intelligent sensor, modular design, easy maintenance
- Display the gas concentration in ppm, %LEL, %vol and mg/m3 is selectable;
- LCD screen displaying the gas concentration, gas type, unit, instrument status etc.
- Independent air chamber, the sensor is not required to replace the sensor calibration, automatic identification of key parameters of the sensor;
- Infrared remote control operation, avoid cover opening operation in dangerous situations.
- With the 16bit ADC acquisition chip, designed with four-layer circuit board, so with high anti-interference ability;
- With the Ex-proof certificate, the Ex-proof grade is Exd II CT6.
Technical Parameter:
| Detection Gas | Ammonia (NH3) |
| Sensor Type | Electrochemical sensor |
| Detecting Range | 0-20ppm、50ppm、100ppm、200ppm、500ppm、1000ppm、2000ppm、5000ppm、10000ppm、50000ppm or customized |
| Resolution | 0.01ppm, 0.1ppm, 1ppm |
| Sampling | Diffusion or pump-suction, circulation selectable |
| Precision | ≤±3%F.S |
| Repeatability | ≤±2% |
| Zero drift | ≤±1%(F.S/year) |
| Sensor Life | 2~3years
(Catalytic combustion, Electrochemical, Semiconductor) 3~5 years(PID, Infrared) |
| Response Time (T90) | ≤30s（combustible gas） |
| Alarming mode | Audible-visual alarm, relay output alarm |
| Working Temperature | -20℃~50℃ (Toxic gas)
-40℃~70℃ (Combustible gas) Or Customized for special demands |
| Working Humidity | 10%~95%RH (non-condensing), if >90%RH, can add the filter |
| Working Pressure | 86kPa~106kPa |
| Working Voltage | 24V DC (Normal operating voltage range: 10~30VDC) |
| Power consumption | <1.5W (Toxic gas) ; <2.5W (Combustible gas) |
| Output Signals | (Standard)Three-wire system 4~20mA standard signals output, available for PLC, DCS, etc;
(Optional) Four-wire system RS485 digital signal output; (Optional) Frequency signal 200~1000Hz output; Two-level relay output:220VAC 0.5A, 5VDC 0.5A Two sets of passive relays (24VDC 2A) |
| Installation Means | Wall mounted, Pipe type (Thread:M40*1.5 ) |
| Main material | Shell (Die casting aluminum) , Air chamber (Hard alumina) |
| Explosion-proof Index | Exd IIC T6 Gb(Combustible gas) Exd ib IIC T6 Gb(Toxic gas) |
| Protection Grade | IP66 |
| Electrical Interface | 3/4″NPT(Female Screw)、1/2″NPT(Female Screw) |
| Transmit Distance | ≤2000m (If more than 2000m, can add the repeater.) |
| Dimension | 185 mm×137.2 mm×90.7mm（L×W×H） |
| Weight | About 1.6Kg |
| Standards | GB15322.1-2003, GB3836.1-2010, GB3836.2-2010, GB3836.4-2010, GB12358-2006 |
| Warranty | 12months |
| Certificate | CNEx, CE, RoHS |
Remark: If you need gas or measuring range not listed on the above, pls send us your details requirments for further discussion.
Application Scenarios
- Industrial ammonia leakage safety monitoring
- Flue gas denitrification ammonia slip monitoring
- Chemical production workshops
- Ammonia storage and distribution areas
- Wastewater treatment facilities
- Fertilizer manufacturing plants
- Refrigeration systems with ammonia medium
- Livestock and poultry breeding sites
Company profile
We Henan Oceanus is located in Henan, a land with a long history and profound cultural heritage, has been dedicated to the research, development, production, and sales of Gas detection system and Environment equipments since its establishment. With exquisite technology and outstanding quality, we have won widespread recognition in the global marketing.
Manufacturing & Quality Control
Every Detail Matters. Every Product Deserves Care.
At Oceanus, quality is considered throughout the manufacturing process. From component inspection and product assembly to performance verification and final inspection, we focus on every detail to ensure our products meet the applicable quality requirements before delivery.
- Power‑on test
Each product undergoes visual and functional checks to verify component assembly, wiring connections, display operation and basic functionality before delivery.
- Product Aging Test
Aging tests are conducted on applicable products to evaluate operational stability and identify potential issues during continuous operation.
- Calibration & Performance Verification
Measuring performance is verified using appropriate reference equipment and standard gases, where applicable, to help ensure reliable measurement results.
- Final Inspection Before Delivery
Before shipment, products are checked for appearance, accessories, packaging and order-specific requirements to ensure delivery readiness.
Every unit is assembled on our own production line, then put through our in-house quality control before it ships. Each instrument undergoes a full inspection, a burn-in aging test and precision calibration, and is finally standardized against reference gases to verify accuracy at the point of delivery. Nothing leaves our factory untested. We also welcome OEM and ODM projects, and every product is backed by our warranty support. Controlling the process from assembly to final calibration is how we keep quality consistent and respond quickly to custom requirements.
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
If you need more details of the Air quality monitor station, welcome to contact us:
No. 2206, Wenhua Chanye Building Block B, No. 77, Shangding Road, Zhengzhou Area, Henan Pilot Free Trade Zone
Email: info@china-oceanus.com
Telephone: +86 0371 60998169
Mobile/Whatsapp: +86 15981942832
Mobile/Whatsapp: +86 13673683950
