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Galvanic ProTech 903 Tape-Based H2S and Total Sulfur Analyzer

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Galvanic Applied Sciences ProTech 903 / 903W

Measured parameters: H₂S (Hydrogen Sulfide), Total Sulfur

Measurement method: Tape-Based Measurement

ProTech 903 is an ATEX/IECEx analyzer that measures sub-ppm H2S and total sulfur by the lead acetate tape method; sold and serviced in Türkiye by Tetra.

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Installation, calibration, spare parts and service in Türkiye come from Tetra; cabinet and panel integration can be done at our İzmir facility.

Technical information

Measurement principle
Tape-based optical detection
Measured components
H2S, total sulfur (TS)
Classification
ATEX/IECEx Zone 1, Ex db [ia] ia op is IIB+H2 T4 Gb
Ambient temperature
0 to +50 °C
Outputs
6× 4–20 mA, 3 SPDT relays, Modbus options
Supply
230 VAC, 50/60 Hz
Body
NEMA 1, IP10 cast aluminum

ProTech 903 is a tape-based H2S and total sulfur analyzer from Galvanic Applied Sciences. The sample creates a color change on a chemically impregnated tape, and optical reading converts this change to concentration. For total sulfur measurement, the sample is first converted to H2S with hydrogen in a reaction assembly. It is used for low-level sulfur monitoring in natural gas, LPG, refinery gas streams and process streams.

Available configurations cover ATEX/IECEx Zone 1 certified H2S, total sulfur (TS) and H2S/TS versions, multi-stream options, an automatic calibration solenoid valve and standard sample systems. H2S ranges above 300 ppm require a dilution system. The 903W model is offered in the same family as a Class D2 H2S analyzer.

ProTech 903 / 903W features

  • ATEX/IECEx Zone 1 (Ex db [ia] ia op is IIB+H2 T4 Gb)
  • Single- or multi-stream configuration
  • H2S, total sulfur or H2S/TS measurement option
  • 6 pcs 4–20 mA outputs, 3 pcs SPDT relays, 8 discrete inputs
  • 2 pcs 4–20 mA inputs per stream
  • Monochrome LCD and extendable keypad
  • Manual or automatic calibration options

Spare parts and consumables

Write to us for spare parts and consumables; the Tetra service team supplies and replaces the right original parts for your instrument.

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Products from Galvanic Applied Sciences

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