TGas-1031 on-line gas transmitter which adopts high performance sensor unit can continuously measure the concentration of gas on site and convert the concentration signal into digital or analog signal output(4-20mA analog signal,RS485 communication signal and switch quantity alarm signal to transmit remotely and drive).
It is widely used in such industries such as petroleum, chemical, natural gas, coal, metallurgy, electric power, municipal administration, telecom,tunnel construction,gas storage station, special plants and other places where flammable gases or toxic and harmful gases exist.
- Two kinds of optional mode of power supply, including centralized busbar type and independent area type.
- High and low concentration alarm, performing real-time monitor to gas.
- Anti-poisoning type gas sensor with high sensitivity .
- Automatic modification of ageing curve of sensor, keeping constant alarm sensitivity.
- Function of automatic recognition of sensor trouble, function of high concentration gas above-norm of sensor.
- Function of automatic detection at starting up, and it has advanced function of self-diagnosis and self-reparing.
- The calibrated concentration value is adjustable, facilitating users to set by themselves.
- When the sensor loses the function of monitoring alarm because of ageing, the detector is capable of automatic recognition and alarm, so as to avoid missing report effectively.
| Model | Range | Low alarm
setting range |
High alarm
setting range |
Low
alarm point |
High
alarm point |
| TGas-1031-FL | 0~100%LEL | 5%～10%LEL | 25%～80%LEL | 20%LEL | 50%LEL |
| TGas-1031-H2 | 0~1000ppm | 100ppm~300ppm | 400ppm~600ppm | 100ppm | 500ppm |
| TGas-1031-O2 | 0~30%vol | 16%～19.5%vol | 22.5%～24%vol | 19.5%vol | 23.5%vol |
| TGas-1031-CO-1 | 0~500ppm | 25ppm～100ppm | 100ppm～500ppm | 35ppm | 200ppm |
| TGas-1031-CO-2 | 0~1000ppm | 25ppm～100ppm | 100ppm～500ppm | 35ppm | 200ppm |
| TGas-1031-CO2-1 | 0~5%vol | 1000~2500ppm | 2500~5000ppm | 1500ppm | 2500ppm |
| TGas-1031-CO2-2 | 0~20%vol | 4%~8% | 8%~16% | 5% | 10% |
| TGas-1031-CO2-3 | 0~65%vol | 13%~26% | 26%~52% | 15% | 30% |
| TGas-1031-CO2-4 | 0~100%vol | 20%~40% | 40~80% | 30% | 50% |
| TGas-1031-H2S | 0~100ppm | 5ppm~15ppm | 15ppm~30ppm | 10ppm | 15ppm |
| TGas-1031-SO2 | 0~20ppm | 1ppm~3ppm | 3ppm~10ppm | 2ppm | 5ppm |
| TGas-1031-CL2 | 0~10ppm | 0.5ppm~3.5ppm | 4ppm~6ppm | 0.5ppm | 5ppm |
| TGas-1031-NH3 | 0~100ppm | 20ppm~30ppm | 30ppm~70ppm | 25ppm | 50ppm |
| TGas-1031-NO | 0~250ppm | 20ppm~50ppm | 50ppm~100ppm | 25ppm | 50ppm |
| TGas-1031-NO2 | 0~100ppm | 1ppm~2ppm | 2ppm~5ppm | 1ppm | 2ppm |
| TGas-1031-HCN | 0~30ppm | 5ppm~10ppm | 10ppm~15ppm | 5ppm | 10ppm |
| TGas-1031-PH3 | 0~1ppm | 0.3ppm~0.5ppm | 0.5ppm~0.8ppm | 0.3ppm | 0.6ppm |
| Parameters | Characteristics |
| Detectable gas | Flammable gases, oxygen, poisonous and harmful gases |
| Measurement precision | ±5%F.S |
| Repeatability | 2% |
| Measurement range | Refer to lectotype table for details |
| Response time | ＜30s（T90） |
| Sampling method | Diffusion |
| Working environment | Temperature: -30℃ ~ 60℃
humidity: below 85% (non condensation) |
| Remote control mode | By the adjustment mode by infrared remote control, the detector can be adjusted without opening of cover |
| 4 ~ 20mA
output |
4~20mA output corresponding to 0 ~100%
maximum load 800 ohms |
| Alarm output | The effective alarm is 1 point or 2 points; each alarm shall use SPDT electronic relay.
Contact rating of alarm relay: Ohmic load: 5A@24VDC or 120VAC or 240VAC Inductive load: 50VA |
| Communication | Communication description: three-wire system parallel RS485 protocol, 32 points at most
Connection: Twisted pair with shield Distance: maximum 1000m |
| Input voltage | 24VDC±25%; power: 2W/way |
| Explosion-proof shell | Explosion-proof grade: ExdIICT5
Protection class: IP66 |
| Using cable | ≥2.5mm2×4 screened cable line, outside diameter of cable is required to be between 6mm~9mm |
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