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Hydrogen Sulphide Analyzers - AII GPR-7500 and GPR-7100 Series

Updated:2025-03-13

Brand: PST/AII
Model: GPR-7500 and GPR-7100 Series
Description: The GPR-7500 analyzer utilizes the low-power electro-chemical sensor technology to provide a cost-effective and easy to maintain online-installation hydrogen sulfide measurement in a small package. Th
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Product Details

Hydrogen Sulphide Analyzers - AII GPR-7500 and GPR-7100 Series Description：

GPR-7100 User's Manual GPR-75000ais User's Manual GPR-7500 ais-Ld User's Manual GPR-7500is User's Manual Datasheet

Cost-Effective Monitoring of Hydrogen Sulfide Levels

Features

ATEX & UL certified variants

Accurate to < 2% of scale with an LDL of 0.1 ppm H2S

Dedicated sample handling systems are included

Optional liquid drain system (for entrained liquids)

24 month typical sensor life (simple to exchange)

Easy to use HMI for set-up, operation and field calibration

The GPR-7500 analyzer utilizes the low-power electro-chemical sensor technology to provide a cost-effective and easy to maintain online-installation hydrogen sulfide measurement in a small package. The GPR-7100 is a portable H2S analyzer version preferably used for spot checking the process or temporary usage during servicing or commissioning of a permanent installation gas analyzer. These advanced instruments from AII are agency approved for use in flammable gas streams.

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 25oC (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 3.5cm (2.75 x 1.375"); resolution 0.1 ppm
Enclosure	Painted aluminum NEMA 4X, 10.1 x 22.9 x 7.6cm (4 x 9 x 3")	NEMA Type 3R for rain in outdoor applications				Type 3R
Weight	3.6kg (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 T_amb +5°C to +45°C	UL: United States: UL 1203, UL 913, UL 508 ATEX: ATEX: II 2 G Ex ib IIB T4 Gb T_amb -20°C to +50°C