Portable gas analyzer HygroScan-P

HygroScan-P gas analyzer is an explosion-proof, compact, user-friendly, standalone and precise instrument for measuring moisture content in natural gas at remote facilities and in laboratories.

HygroScan Brochure


  • Online moisture content and WDP monitoring in CNG, impulse gas and other combustible gas in the field, including during pipeline commissioning and after repair operations;
  • Portable moisture content monitoring system for various gaseous media, in thermal power, food industry, chemical and oil and gas industries.


  • Portable moisture content monitoring system for various gaseous media;
  • Measurement ranges and errors as in stationary analyzer;
  • Prolonged standalone operation powered from accumulator even in cold environment, charging from a car power outlet and from power mains also possible;
  • Explosion-proof design, Ex mb;
  • No additional gases and sample conditioning needed;
  • Compact size and low weight.
330 mm
165 mm

Option: Analyzed gas pressure value display, conversion to various moisture measurement units.

Metrological characteristics

Dew point measurement range -70 … +20°С
Permitted absolute measurement error limits for dew point measurement ±1°С in the WDP range -30… +20°С
±2°С in the WDP range -70… -30°С
Moisture content measurement range 2 … 17 000 mg/m3


Operating principle Sorption capacity
Number of streams 1
Operation mode manual
Analyzed medium gaseous (natural gas, multicomponent gas mixtures)
Analyzed gas pressure up to 25 MPa
Analyzed gas flow rate, nl/min 0,5-5,0
Time of analyses from 30 sec (purge time not included)
Analyzer verification interval 1 year
Explosion protection 1 Ex mb IIС Т6 Gb X
IP rating IP65
Power consumption, no more than, W 20
Power supply, V 12 (battery), 220 (charging)
Data transfer interfaces RS 232
Analysis archives and events log storage up to 35 days, in analyzer memory
Ambient temperature, °С -40 … +50
Dimensions, LxWxH, mm 330х420х165
Weight, kg, no more than 9
Service life, years no less than 10



Certificates and Approvals