Posted in | Gas Analyzer

Easy to Operate and Cost-Effective Hydrogen Sulfide Analyzers

The low-power electro-chemical sensor technology is employed in the GPR-7500 analyzer to offer an easy-to-maintain and inexpensive online-installation hydrogen sulfide measurement in a small package. The GPR-7100 is a portable H2S analyzer that is ideally suited for spot-checking of the process or for temporary usage during commissioning or servicing of a permanent installation gas analyzer.

These sophisticated instruments from Analytical Industries are industry-certified for application in flammable gas streams:

  • Equipped with dedicated sample handling systems
  • Easy-to-use HMI for set-up, operation, and field calibration
  • UL and ATEX certified variants
  • Typical sensor life of up to 24 months (simple to exchange)
  • Accurate to <2% of scale with an LDL of 0.1 ppm H2S
  • Optional liquid drain system (for entrained liquids)

Easy to operate Hydrogen Sulfide Analyzers

GPR-7100 easy to use portable H2S analyser for fast spot-checking’

Technical Specifications

7100 7500 IS 7500 IS -LD 7500 AIS 7500 AIS LD 7500 AIS-S 7500 IS-S
Measurement range 0-20, 0-50, 0-100 ppm 0-20, 0-50, 0-100 ppm (standard ranges)
0-500, 0-1000, 0-2000 ppm (optional ranges)
0-20, 0-50, 0-100 ppm
Accuracy ±2% of selected range at constant conditions
Response time T90 < 60 seconds
Sensitivity (LDL) 0.1 ppm
Linearity <2% of scale
Sensor model OSV-72-7HH-LM (standard ranges) OSV-72-7HH (standard ranges), OSV-72-7HH-LD
OSV-72-7H (up to 2000 ppm), OSV-72-7H-LD
OSV-72-7HH-LM (standard ranges)
Sensor life 25 °C (77 °F) and 1 atm 24 months
Calibration interval 1-3 months - see manual for individual models
Inlet pressure 0.34-2 barg (5-30 psig); vent - atmospheric atmospheric
Sample flow rate 0.5 l/m (1 SCFH) None, measures H2S in ambient air
Auxilary air flow rate 0.5 l/m (1 SCFH)
1.5 Nl/m (3 SCFH) for high range sensor
Instrument air required: regulated to 1 barg if internal pump not supplied
Gas connections 1/8" Compression Type Fittings 1/4" Sample/Span; 3/8" Vent line. None
Wetted parts Stainless steel
Display Graphical LCD 7 x 3.5 cm (2.75 x 1.375"); resolution 0.1 ppm
Enclosure Painted aluminum NEMA 4X, 10.1 x 22.9 x 7.6 cm (4 x 9 x 3") NEMA Type 3R for rain in outdoor applications Type 3R
Weight 3.6 kg (8 lbs) 10 Kg (22 lbs)
Compensation Temperature compensated Temperature not required Barometric pressure, temperature not required Temperature not required
Signal output 0-1V 4-20 mA or 1-5 V DC
Alarms None Two user configurable alarms: magnetic coil relays rated 3A at 100 V AC, programmable alarm delays, alarm bypass for calibration and system fail alarm None
LED indicators LOW BATT Warning; CHARGE mode NA
Operating temperature -10° to 45 °C (14 °F to 113 °F)
Power Rechargeable battery, 8 hours day duty cycle 18-28 V DC Transmitter, 12 V DC Pump 12-28 V DC (UL or ATEX Certified) 110-220 V AC (ATEX Certified) Transmitter, 12 V DC PUMP 12-28 V DC (UL or ATEX Certified) 110-220 V AC (ATEX Certified) 18-28 V DC
Area classification ATEX: II 2 G Ex ib IIB T4 Gb Tamb+5 °C to +45 °C UL: United States: UL 1203, UL 913, UL 508

ATEX: ATEX: II 2 G Ex ib IIB T4 Gb Tamb -20 °C to +50 °C

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