product name | Fixed on-line hydrogen sulfide detector
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Product number | FIX550-H2S |
Gas detection | Hydrogen sulfide (H2S) in the air
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Detection principle | Principle of electrochemistry
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Measuring range | 0~10ppm, 0~50ppm, 0~100ppm, 0~200ppm, 0~1000ppm, 0~2000ppm, 0~5000ppm, 0~10000ppm |
Resolution | 0.01 ppm (0 to 100 ppm); 0.1 ppm (0 to 1000 ppm); 1 ppm (1000 ppm or more) |
Sampling method | 1 Free-diffusion type - online continuous detection, free-diffusion detection method; 2 aspirating-external air pump optional flow-type adapter inlet and outlet or built-in air pump to achieve pumping detection mode (air pump optional) |
Installation method | Wall-mounted; pipe type (divided pipe type, intubated type, pipe type external thread: M45X1.5mm, optional pipe adapter screw joint, can be welded); |
Indication error | ≤±3% FS (more precise requirements depending on sensor performance) |
Repetitive | ≤±1% |
Zero drift | ≤±1% (FS/year) |
Response time | ≤ 20 seconds (T90), (higher requirements depending on sensor performance) |
Recovery time | ≤30 seconds (higher requirements depending on sensor performance) |
Power supply | 12 to 30 VDC |
Power | ≤2.5 W (DC24V) |
Environmental pressure | 86kPa~106kPa |
| -20 ° C ~ +55 ° C (typical) -40 ° C ~ +70 ° C (limit value) (The higher temperature and humidity detection environment can be purchased with our pre-treatment gas monitoring system)
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environment humidity | 10% to 95% RH (no condensation) |
The main material | 1 Housing: ADC12 aluminum alloy, Teflon baking varnish, wear and corrosion resistance (optional 316 stainless steel housing for complex environment) 2 air chamber: high-strength wear-resistant and corrosion-resistant aluminum profile, sturdy and durable (optional 316 stainless steel air chamber can be selected in complex and harsh environment), gas outdoor thread M45*1.5; |
output signal | 1. three-wire 4-20mA current signal output, can be connected to various alarm controllers, PLC, DCS and other control systems; 2. RS-485 digital signal output, connect RS232 adapter card to view stored data on the computer; 3. 2 sets of relay high and low section alarm switch output (standard 1 set, optional 1 set): passive contact, capacity 30V 1A, 125VAC 0.5A;
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Signal transmission the way
| 1. three-core (four-core) shielded cable transmission: up to 1000 meters to 2000 meters (single-core 1 square shielded cable); 2. network port TCP / IP transmission: support TCP / IP protocol, network cable transmission within 90 meters, through the network long-distance real-time transmission (optional); 3. fiber transmission: the longest transmission can be 20 km to 40 km (single-mode multi-core transmission of fiber optic cable, fiber optic MODEM must be configured), can be networked (optional); 4. short-distance RTU433 wireless transmission: transmission distance 0 to 2 km, depending on transmission power and on-site environment (optional); 5. GPRS wireless transmission: no distance limit, built-in module, through mobile, China Unicom or Telecom Signal transmission, with SMS reminder notification function (optional) |
Alarm mode | Sound and light alarm, optional sound and light alarm, alarm sound: < 90 decibels
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Alarm point setting | A1 alarm value, A2 alarm value |
Display | LCD screen |
Button mode | Remote control + 3 button operation |
Direct reading | Measurements |
Calibration | Full software target point calibration function, can set calibration calibration value, one key zero adjustment
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Explosion-proof electrical connection thread | 1 NPT3/4 adapter internal thread (optional 1/2NPT, G3/4, G1/2 adapter internal thread) 2 Explosion-proof cable stuffing box (optional, explosion-proof certification); |
Explosion-proof mark | Ex d II CT6 Gb Explosion-proof certificate number: CNEx15.1284 (National Explosion-proof Electrical Product Quality Supervision and Inspection Center Inspection and Certification) |
Protection level | IP65 |
Size | 210mm*175mm*85mm |
Weight | About 1.8Kg (aluminum alloy case) |
Executive standard | GB15322.1-2003, GB3836.1-2010, GB3836.2-2010, GB3836.4-2010 |