Ammonia gas detector
Detection parameters of NH3 concentration in ammonia gas
Working VoltageDC24±1%baud rate9600
Gas measurementNH3 ammonia gasDetection PrincipleInfrared NDIR
Sampling accuracy±1%F.SResponse timeLess than 30S
Repeatability±1%F.SWorking Humidity10-95% RH, (without condensation)
Working temperature-30 ～ 50℃Long-term drift(=& plusmn; 1% (F.S/year)
Storage temperature-40 ～ 70℃Preheating time30S
Working Current≤50mAWorking Pressure86kpa-106kpa
Installation MethodFixed installationQuality Assurance Period1 years
Output interfaceVariedShell MaterialAluminium alloy
Service life2 yearsOutward Size
183 * 143 * 107mm (L * W * H) 1.5Kg (instrument net weight)
Scope of measurementSee Selection Table for details.
Output signalTTL (Standard) RS485 (Conventional)/4-20mA
NH3 ammonia gas leakage alarm device (SK-600-NH3) is a toxic gas detector with modular design, intelligent sensor detection technology, integral flameproof (d) structure and fixed installation mode. The standard configuration is LCD display with dot matrix, 3-wire 4-20mA analog and RS485 digital signal output. The optional configuration is programmable switching output module, which provides customized products according to user's needs, and supports fine-tuning of output signal, so as to facilitate system networking and maintenance.
Characteristic
Intelligent EC sensor, using intrinsic safety technology, can support multi-gas and multi-range detection, and can provide customized products according to user needs. It can realize sensor interchange, off-line calibration and zero self-calibration without tools.
Intelligent temperature and zero compensation algorithm makes the instrument have better performance and good selectivity, and avoids the interference of other gases to the detected gases.
Various signal outputs can be easily accessed to industrial control systems such as PLC/DCS or used as stand-alone control.
Super large dot matrix LCD LCD display, support Chinese-English interface
Free of cover, infrared NDIR remote control operation, single maintenance
Local alarm instruction, integrated acoustooptic alarm (optional)
The instrument has over-range and anti-polarity protection, which can avoid the danger caused by improper manual operation.
Rich electrical interfaces for users to choose
Through ATNH3, UL, CSA certification, with international high-end quality
Product characteristics of NH3 gas leakage alarm device for ammonia:
The imported infrared NDIR sensor has good anti-jamming performance and can be used for 8 years.
With advanced microprocessing technology, the system has fast response speed, high measurement accuracy, good stability and repeatability.
The detection site has the function of sound and light alarm on site, and the gas concentration exceeds the standard to alarm immediately, which is the safety guarantee for the operation in dangerous places.
4. LCD display with backlight on site, which can directly display gas concentration, type, unit, working state, etc.
5. Independent gas chamber, no field calibration is needed to replace the sensor, and the key parameters of the sensor are automatically identified.
6. Full range temperature digital automatic tracking compensation to ensure the accuracy of measurement.
Technical parameters of ammonia NH3 gas leakage alarm device:
Detection Gas: NH3 Gas Emitted from Air
Detection range: 0-1500PPM
Separate rate: 0.01PPM
Working mode: Fixed continuous operation, diffusive, pipeline type, when circulating, pump and suction type is optional.
Detection error: <1%(F.S)
Response time: <10S
Output signal: current signal output 4-20MA
Alarm mode: 2-way passive node signal output, alarm point can be set.
Working environment: - 20 C~50 C (special requirements: (- 40 C~70 C)
Relative humidity: <90% RH
Working Voltage: DC12~30V
Sensor life: 3 years
Explosion-proof form: Probe transmitter and sensor are flameproof type.
Explosion-proof grade: FTD6 II CT6
Connecting cable: three-core cable (single cable diameter (> 1.5mm); shielded cable is recommended.
Connection distance: <1000m.
Protection level: IP65.
Size: 183X143X107 mm.
Weight: 1.5 Kg.
Gas measurement:NH3 Emission from Air
Detection range:0-1500PPM
Resolving power:0.01PPM
Display mode:LCD
Temperature and humidity:Selected accessories, temperature detection range: - 40 - 120 C, humidity detection range: 0 - 100% RH
Detection method:Diffusion type, flow type and pump suction type are optionalInstallation mode:Wall hanging and pipe type
Detection accuracy:≤±3%Linear error:≤±1%
Response time:Less than 20 seconds (T90)Zero drift:(=& plusmn; 1% (F.S/year)
Recovery time:Less than 20 secondsRepeatability:≤±1%
Signal output:(1) 4-20mA signal: standard 16-bit precision 4-20mA output chip, transmission distance 1Km
(2) RS485 signal: using standard MODBUS RTU protocol, transmission distance 2Km
(3) Voltage signal: 0-5V, 0-10V output, can be set by oneself.
Pulse signal: also known as frequency signal, frequency range can be adjusted (optional)
Switching signal: Standard 2 sets of relays, optional third group of relays, relay passive contacts, capacity 220VAC 3A/24VDC 3A
Transmission mode:(1) Cable transmission: 3-core, 4-core cable, long-distance transmission (1-2 km)
GPRS transmission: can be built-in GPRS module, real-time remote transmission of data, not limited by distance (optional)
Receiving device:User computers, control alarms, PLC, DCS, etc.
Alarm mode:On-site sound and light alarm, external alarm, remote controller alarm, computer data acquisition software alarm, etc.
Alarm settings:Standard configuration of two-level alarm, three-level alarm can be selected; alarm mode can be set: conventional high-low alarm, interval control alarm.
Electrical interface:3/4 NPT internal thread and 1/2 NPT internal thread, supporting two electrical connection modes at the same time
A brief introduction of ammonia NH3 gas leakage alarm device:
Alarm device for NH3 leakage of ammonia gas
Automatic temperature compensation, zero, full range drift compensation
Automatic Protection Function against High Concentration Gas Shock
Software calibration function, users can also calibrate themselves, with three keys to achieve, simple operation
Two-wire 4-20 mA output
Application Site of Ammonia NH3 Gas Leakage Alarm Device
Pharmaceutical research, pharmaceutical production workshop, company, environmental monitoring, school scientific research, building construction, fire alarm, sewage treatment, industrial gas process control petrochemical, chemical plant, smelter, steel plant, coal plant, thermal power plant, boiler room, waste treatment plant, tunnel construction, oil pipeline, gas filling station, land Maintenance of downstream gas pipeline, indoor air quality inspection, safety protection equipment monitoring in dangerous places, etc.