H2S Analyzer_SA4000-4

H2S Analyser with Vapour Phase Processor – SA4000-4

The H2S Analyser with Vapour Phase Processor (VPP) is a compact bench-top instrument, used to measure the total hydrogen sulfide (H2S) content of fuel oils, such as marine residual fuels, distillates, and petroleum blendstocks. The H2S Analyser can measure H2S concentrations from 0 to 250 mg/kg (ppm) in the liquid phase.

Designed with an integrated VPP, components such as toluene, xylene, thiols (mercaptans), and alkyl sulfides are removed to ensure the accuracy of results.

An analytical balance can be connected to the H2S Analyser which reads the data from the balance and automatically calculates the sample mass, saving time and eliminating the risk of data entry errors.

Other enhanced functionality features include a real-time graphical display of test progress, custom result reporting, and automated gas calibration.

Statistical Quality Control (SQC) software allows analysis of results in accordance with ASTM D6299. Whilst participating in the Proficiency Testing Scheme (PT Scheme) ensures continued compliance with IP 570.

Methods: ASTM D7621, IP 570, ISO/PAS 23263, ISO 8217


  • Measurement range from 0-250 mg/kg H2S
  • Built-in Vapour Phase Processor
  • Non chemical method, no wet chemistry involved
  • Small lab bench footprint
  • Integral camera to aid sample input
  • Custom result reporting and LIMS output
  • Weighing balance connectivity and automation
  • Statistical Quality Control software

Ease of use:
The H2S features a simple user interface with a touchscreen display. An integrated camera showing the test vessel aids sample input and ensures the correct amount of sample is used for accurate results.

Due to the simplicity of test setup and no requirement for analytical preparation by an experienced chemist, low operator time is needed to run a test, helping to reduce labor costs.
The H2S Analyser requires only a small sample volume, helping to reduce cost and waste per test.
As the H2S uses a non-chemical method, no costly or hazardous chemicals are required.

Calibration and verification:
Calibration of the H2S Analyser can be performed in the field, eliminating the costs and time associated with sending the instrument to a service center.

Service and maintenance:
The rugged design ensures minimal operational maintenance is needed.

MEASUREMENT RANGE 0-250 mg/kg H2S in the liquid phase (0-250 ppm H2S)
VISCOSITY RANGE 1-3000 mm2/s at 50C
PRINCIPLE OF MEASUREMENT Electrochemical sensor
TEST DURATION 15 minutes
SAMPLE SIZE 1ml, 2ml, 5ml (depending on H2S concentration)
RESULTS FORMAT Numerical and graphical display
MEMORY 500,000 result memory. Print via external printer, export to LIMS, USB or QR code
CONNECTIVITY RJ45 Ethernet, RS232 Serial or USB
VOLTAGE 100/240 V, 50/60 Hz, auto-sensing universal power supply
SIZE (HXWXD) 520x290x570 mm
WEIGHT 15 kg