Model 932 Multi Gas H2S Analyzer (with H2S and HC Options)

The Model 932 uses a sophisticated UV-VIS photometer to measure up to five gas species for process monitoring and control for chemical processes.


The Model 932 uses a sophisticated UV-VIS photometer to measure up to five gas species for process monitoring and control for chemical processes. The Model 932 is provided as an explosion-proof package and our proprietary high-resolution UV-VIS technology which is completely free from water or hydrocarbon interference, maximizing measurement accuracy. A very flexible design, the 932 can be optionally equipped with additional sensors to add the capability to monitor H2.

The Model 932 analyzer utilizes industrial electronics to provide concentration calculations, data processing, temperature control, calibration and sophisticated self-diagnostics. No matter what your need is, this rugged analyzer is solid proof of AMETEK’s worldwide reputation for durability and reliable performance.


  • Class I, Division 1, or ATEX II 2 G Hazardous Area Rating
  • Direct measurement
  • Provision to return sample to process (with heated acid gas probe option)
  • Minimal sample conditioning
  • Dual-beam, dual-wavelength design
  • Optional detectors available (thermal conductivity-hydrogen and IR-hydrocarbon)


Methodology Multiple wavelength, high resolution, non-dispersive UV/VIS
Full Scale Ranges: ppm and % vol are standard, other ranges are available
Accuracy Standard range (UV): ±1% full scale of standard ranges*
±2.0% full scale of standard ranges for the H2S+NH3 application
Optional (TCD) H2 sensor for TGTU applications: ±2% of full scale range
Optional (IR) sensor for THC, CO2: application specific, consult factory
Repeatability Better than ±0.5% of full scale range*
Linearity Better than ±1% of full scale*
Zero Drift Better than 2% of full scale range, with auto zero disabled, over 24 hour period
Speed of Response Typically less than 30s to T90 (excluding sample system)
Number of Gases up to five
Maximum Sample Cell Pressure: 6.9 barg (100 psig)
Maximum Sample Gas Temperature: 165 oC (329 oF)
Zero gas Gas: Nitrogen or instrument air Liquid: Application specific
Typical Sample Flow
Gas 2.5 L/min (5 SCFH)
Liquid Application specific
Sample Transport Application dependant (options include Heated Acid Gas probe)
Outputs Up to 4 isolated 4-to-20 mA, loop or self-powered; 4 non-isolated 1 to 5 VDC; 5 independent sets of SPDT, Form C, potential free alarm relay contacts, 2 A at 240 VAC
Digital Communication RS485 Modbus port; RS232/RS485 service port
Utility Requirements 120 VAC (104 to 132 VAC), 47 to 63 Hz, <3A; 240 VAC (207 to 264 VAC), 47 to 63 Hz, <2A
Power Consumption 500 W maximum (with heated probe and cell), sample lines or additional heated sample components not included
Ambient Temperature 0 to 50°C (32 to 122°F)
Physical Dimensions 1185 x 780 x 254 mm (46.65 x 30.7 x 9.97 in.)
Weight Approximately 145 kg (320 lbs)
Approvals and Certifications CEC Class I, Division 1, Groups C & D; Ex d IIB T3
NEC Class I, Division 1, Groups C & D; AEx d IIB T3
Russian Ex Proof Certification; 1ExdIIBT3 X
Russian Gosstandart Pattern Approval
Complies with all relevant European directives


Model 932 Multi-Gas Analyzer
Heated Acid Gas (HAG) Sampling Probe