STF200E series point ammonia detector

Imported electrochemical sensor; can accurately measure ammonia concentration in ambient air, response time T90 < 60 seconds; plug-in intelligent sensor components, easy to replace; digital LED display, wide operating temperature range, long life; automatic zero adjustment , Automatic identification of faults and automatic prompting of errors; a variety of signal outputs, a variety of wire connections; explosion-proof and combustible dust explosion-proof dual certification.

 

 

 

 

 

Imported industrial-grade electrochemical sensors are used, with sensitive detection and rapid response, and most gas sensors have a life span of more than 2 years;
digital LED display, wide operating temperature range and long life;
intelligent self-checking and automatic fault identification functions;
built-in temperature sensor, It has the function of automatic temperature compensation;
supports a variety of signal output modes and electrical interfaces, optional RS-485 and HART digital communication functions;
infrared remote control calibration adjustment, easy to operate.

Excellent detection performance

Imported industrial-grade electrochemical sensors are used, with sensitive detection and rapid response, and most gas sensors have a life span of more than 2 years;
Support multiple signal output modes

​​​Supports a variety of signal output modes and a variety of electrical interfaces, and optional RS-485 and HART digital communication functions.
Meet industrial-grade harsh environment requirements

​​​It adopts explosion-proof explosion-proof design, the explosion-proof grade reaches IICT6, and the protection grade reaches IP66. While ensuring the overall explosion-proof and protective performance, it also ensures the detection sensitivity for low-concentration and strongly adsorbed toxic gases.

A variety of alarm methods, comprehensive security

​​​The host has its own light alarm function, and supports external integrated explosion-proof sound and light alarms. The sound and light alarm sound reaches 95dB@30cm. Even in complex industrial site environments, it can effectively warn users and comprehensively ensure safety. ;

Flexible configuration to meet diverse needs

​​​It can be flexibly configured as needed, and supports the detection of various special gases such as chlorine, acrylonitrile, hydrogen fluoride, methyl mercaptan, benzene, formaldehyde, etc., to meet the diverse needs of users in different fields.

Easy to operate

​​​Infrared remote control calibration adjustment, no need to open the cover, easy to operate.

Technical parameter

name parameter value
Detection principle Electrochemical
Detection method Diffusion
Accuracy ±3% FS (refer to the corresponding sensor specifications at the same time)
Repeatability Within 2% (refer to the corresponding sensor specifications at the same time)
Display method digital LED
Alarm method LED light alarm, optional explosion-proof sound and light alarm
Operation method Infrared remote control
Power supply 24VDC (15-30V)
Power consumption <3W (with sound and light alarm <5W)
output signal 4-20mA (three-wire system)
relay switch output (2A 30VDC)
24VDC output (for driving sound and light alarm)
RS485/HART (optional)
transmission cable <1000m, 3(4)x1.5mm2
<1500m, 3(4)x2.5mm2
Electrical Interface M20(F) (other specifications and sizes can be configured on demand)
ambient temperature -30℃ ~ +60℃
environment humidity 15~95%RH/No condensation
Sensor life >2 years (refer to the corresponding sensor specifications at the same time)
Explosion-proof mark Ex dⅡC T6 Gb
Protection class IP66
Dimensions 118x205x90mm (WxHxD)
weight 1300 grams

List of common toxic gases

gas name molecular formula Detection range Resolution Response time Sensor life
hydrogen sulfide H2S 0 – 20/30/50/100PPM 0.1PPM 30s 2 years
carbon monoxide CO 0 – 50/100/200/500/1000ppm 1PPM 30s 2 years
Chlorine Cl2 0 – 10PPM 0.01PPM 60s 1 year
Ammonia NH3 0 – 50/100/500PPM 1PPM 60s 2 years
oxygen O2 0 – 25/30%vol 0.1%vol 20s 2 years
hydrogen H2 0 – 1000/2000PPM 1PPM 80s 2 years
ethylene oxide C2H4O 0 – 100ppm 1PPM 90s 2 years
ozone O3 0 – 1ppm 0.01PPM 60s 1 year
sulfur dioxide SO2 0 – 30/100ppm 0.1PPM 30s 2 years
vinyl chloride C2H3Cl 0 – 100ppm 1PPM 90s 2 years
Hydrogen chloride HCl 0 – 30ppm 0.1PPM 70s 2 years
hydrogen cyanide HCN 0 – 10/30/50ppm 0.1PPM 120s 2 years
carbon dioxide CO2 0 – 5000/10000/20000PPM
0 – 5/10/20%VOL
1PPM
0.1%VOL
30s 5 years
Acrylonitrile C3H3N 0 – 100ppm 1PPM 90s 2 years
Tetrahydrothiophene C4H8S 0-30/50/100mg/m3 0.1mg/m3 60s 2 years

*If you need to detect other gases or need other detection ranges, please contact us!