Gas Analysis & Chromatography
GPR-7100 Portable H2S Analyzer
Portable ppm hydrogen sulphide analyzer with electrochemical sensor, intrinsically safe for field use.
AI
Analytical Industries Inc.
GPR-7500 (A)IS Online H2S Analyzer
Online ppm hydrogen sulphide analyzer with electrochemical sensor, certified for flammable gas streams.
Key Features
- Measurement ranges from 0–20 ppmV to 0–2000 ppmV
- 4–20 mA analog output
- Modbus and two configurable alarms (AIS version)
- Dedicated sample-handling systems included
- Optional liquid drain for entrained liquids
- Optional air pump for sample dilution
- Hazardous-area certified (ATEX, IECEx, cMETus)
Overview
The GPR-7500 (A)IS hydrogen sulphide analyzer is designed for online H2S measurement. Using low-power electrochemical sensor technology, it delivers cost-effective, minimal-maintenance H2S measurement in a compact design, with dedicated sample-handling systems included. It is certified for use in flammable gas streams.
Working Principle
An electrochemical H2S sensor (OSV-72-7H / -7HH series) measures the sample, which can be diluted with air via an optional air pump (1:10 or 1:1 air:sample ratio). The analyzer provides a 4–20 mA output; the AIS (line-powered) version adds Modbus and two user-configurable alarms. An optional liquid drain handles entrained liquids.
Applications
Benefits
- Cost-effective, minimal-maintenance H2S measurement
- Compact design for online installation
- Loop-powered (IS) or line-powered (AIS) versions
Technical Specifications
| Sensor Models | OSV-72-7H, OSV-72-7HH (and -LD liquid-drain versions) |
|---|---|
| Ranges | 0–20, 0–50, 0–100 ppmV (7HH); 0–500, 0–1000, 0–2000 ppmV (7H) |
| Accuracy | < 2 % of selected range at constant conditions |
| Resolution | 0.01 ppmV |
| Lower Detection Limit | 0.1 ppmV |
| Response Time (T90) | < 60 s |
| Pressure Range | 5–30 psi (0.3–2 bar) |
| Operating Temperature | -10…+45 °C |
| Sensor Life | 12 months in air (application dependent) |
| Calibration Interval | Monthly recommended, max. 3 months |
| Display | LCD |
|---|---|
| Output | 4–20 mA |
| Digital | Modbus (AIS only) |
| Relays | Two user-configurable alarms (AIS only) |
| Power Supply | 12–28 V DC loop-powered (IS); 12–24 V DC (AIS) |
| Max. Power | 1 W (IS); 28 W (AIS) |
| Housing | Painted aluminum and fiberglass |
|---|---|
| ATEX / IECEx | Ex db ia IIC T4 Gb (IIB+H2 with optional air pump), Tamb -20…+50 °C |
| cMETus | Class I, Div 1, Groups B, C & D, T4; Class I, Zone 1, AEx db ia IIB+H2 T4 Gb |
Downloads
Datasheet (PDF)PDF
Frequently Asked Questions
What warranty is offered on this product?
All Tetracon-supplied instruments carry the original manufacturer warranty (typically 12–24 months) plus first-line local support from our Islamabad service centre.
Do you provide installation and commissioning?
Yes. Our manufacturer-trained engineers offer on-site installation, commissioning and startup training anywhere in Pakistan.
Are spares and calibration available locally?
Common spares are held in local stock. Calibration is available at our lab or on-site with NIST-traceable reference standards.
How long is the typical lead time?
Stocked items ship within 3–5 working days; engineered configurations typically 6–10 weeks depending on manufacturer schedule.
Request a Quote — GPR-7500 (A)IS Online H2S Analyzer
Complete the form below and one of our engineers will respond within 1 working day with pricing and lead time. Prefer email? Contact our sales team.
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