Ammonia NH3 Gas Detector 1.Auto-calibration function 2.small and comfortable to carry 3.Ex(ia) IIC T3

 NH3 Gas Detector

1.Intrinsically safe apparatus, Ex(ia) IIC T3

2.Using advanced ultra-low-power 16-bit microcontroller

3.Cassette-type design: small and comfortable to carry.

4.Ultra-wide viewing angle, large-screen LCD display

5.Powered by large capacity rechargeable lithium-ion battery, ultra-long standby time

6.Battery voltage displaying

7.Modular sensors, easy to maintain

8.Auto-calibration function, reducing detection error

9.STEL and TWA alarm on toxic gas detect,  each have a different sound, visual and vibration alarm

10.Password management capability.  Important operations need password authentication

  Specifications 

Model	PGAS-21
Measuring gas	Toxic gas (O2, CO, CL2, NH3, HCL, HCN, SO2 & etc)
Sampling  method	Diffusion
Measuring principle	Electrochemical cell
Measuring range	Refer to ordering information
Response time	<30 sec / 90% scale
Accuracy	±2% / Full scale
Alarm type	visual, sound, vibration
Measuring value display	LCD display (6 digit 8 seg)
Operating temperature	-20°C ~ +50°C
Operating humidity	5 ~ 95%.RH (non-condensing)
Operating power	4.2V rechargable lithium battery
Dimensions	106x67x32 mm  (L x W x H)
Net weight	120g
Approval	IP65, Ex(ia) IIC T3

 Ordering Information 

Model	Measuring gas	Range	Preset Alarm Threshold
PGAS-21-O2-30	Oxygen	0-30%	LOW: 19.5%,HIGH: 22.5%
PGAS-21-CO-1000	Carbon monoxide	0-1000  PPM	35                          PPM
PGAS-21-CO-500	Carbon monoxide	0-500    PPM	10                          PPM
PGAS-21-H2S-100	Hydrogen sulfide	0-100    PPM	10                          PPM
PGAS-21-SO2-100	Carbon dioxide	0-100    PPM	2                            PPM
PGAS-21-CL2-50	Chlorine	0-50      PPM	1                            PPM
PGAS-21-HCN-30	Hydrocyanic acid	0-30      PPM	4.7                         PPM
PGAS-21-NO2-100	Nitrate dioxide	0-100    PPM	2                            PPM
PGAS-21-NH3-100	ammonia	0-100    PPM	25                          PPM
PGAS-21-PH3-5	Phosphine	0-5        PPM	0.3                         PPM
PGAS-21-O3-1	Ozone	0-1        PPM	0.1                         PPM
PGAS-21-NO-250	Nitrate monoxide	0-250    PPM	25                          PPM
PGAS-21-CLO2-1	Chlorine dioxide	0-1        PPM	0.1                         PPM

PGas-21 Ammonia NH3 Gas Detector