GS8320-H2S Portable H₂S Detector
Personal H₂S safety monitor with vibration and audible alarm
- Range
- 0-200 ppm H₂S
- Alarm
- 95 dB audible + vibration
- Weight
- 110 g
- Runtime
- 2 years (always-on)
Overview
Clip-on personal H₂S monitor for worker safety. Loud audible alarm, vibration alert, and bright LED warning for immediate hazard notification in noisy environments.
- Clip-on design, 110g weight
- 2-year continuous runtime
- Man-down motion alarm
- Event logging with IR download
Full Technical Specifications
Key Performance
| Metric | Value | Status |
|---|---|---|
| Range | 0-200ppm H₂S | confirmed |
| Alarm | 95 dB audible + vibration | confirmed |
| Response | <15 s T90 | confirmed |
| Runtime | 2 years continuous always-on | confirmed |
| Weight | 110g | confirmed |
Measurement
| Specification | Value |
|---|---|
| Measuring Principle | Electrochemical |
| Measurement Range | 0–200 ppm H₂S |
| Accuracy | ±5% of reading or ±2 ppm |
| Response Time (T90) | <15 s |
| Resolution | 0.1 ppm |
Physical
| Specification | Value |
|---|---|
| Dimensions (W×H×D) | 90 × 58 × 32 mm |
| Weight | 110 g |
| Housing Material | Polycarbonate IP67 |
| Clip | Stainless steel alligator clip |
Electrical
| Specification | Value |
|---|---|
| Battery | 3.6 V lithium (non-rechargeable) |
| Runtime | 2 years continuous always-on |
| Data Logging | Event log 100 events |
| Download | IR port |
Environmental
| Specification | Value |
|---|---|
| Operating Temperature | -20 °C to +55 °C |
| Storage Temperature | -30 °C to +60 °C |
| Humidity | 15–90 % RH |
| Vibration | MIL-STD-810G |
Certifications
| Specification | Value |
|---|---|
| Hazardous Area | ATEX II 1G Ex ia IIC T4 |
| Ingress Protection | IP67 |
| Performance | EN 60079-29-1 |
| Drop Test | 3 m onto concrete |
Where This Analyzer Fits
This model is mapped to the following industry applications and process duties.
Deployment Environments
Common process environments where this model is evaluated.
Certification Scope
Standards are listed with scope and status so engineering review can verify the applicable enclosure, area, and safety case.
| Standard | Scope | Variant | Status | Document |
|---|---|---|---|---|
| ATEX II 1G Ex ia IIC T4 Ga | Zone 0 personal H₂S detector installation | Project variant | approved | On request |
| IECEx / CSA / FM / MSHA | Approvals listed in existing certification detail | Project variant | approved | On request |
| EN 60079-29-1 | Gas detector performance standard listed in specifications and certification detail | Project variant | approved | On request |
| IEC 60079-0/11 / ANSI/ISA 92.00.01 | Standards listed in existing certification detail | Project variant | approved | On request |
| IP67 | Ingress rating listed in specifications and certification detail | Project variant | approved | On request |
Request Documentation
Request technical datasheets, user manuals, certificates, and application notes for this model.
Evidence Notes
Personal H₂S monitor coverage architecture for well-site rotations
Application note based on the existing oil-and-gas exploration scenario: always-on personal H₂S monitors with man-down alarm and event-log download support worker-coverage planning for well-site rotations. Fleet planning depends on bump-test practice, event-log handling, and replacement policy.
Technical & Engineering Details
Secondary engineering detail — expand each topic for the full measurement, envelope, sample-system, calibration, integration, maintenance and application evidence.
01 Measurement Principle and Limits
How the measurement is bounded
Electrochemical H₂S cell supports personal safety monitoring with audible, vibration, LED, and man-down alarm functions.
Requires
- Daily bump test with 25 ppm H₂S gas using the BT-100 bump test station
- IR download workflow when event logs are needed
- Use within the stated temperature and humidity limits
Interferents and Limits
- Electrochemical H₂S cells require site review for reactive-gas cross-sensitivity such as CL₂ or SO₂
- Sensor poisoning or contamination risk should be reviewed after abnormal exposure events
- Personal safety monitor duty, not process H₂S quality control
- Operation outside the stated temperature and humidity ranges
02 Operating Envelope
Use these limits as selection inputs, then confirm sample condition, ambient exposure, and materials before quotation.
- Process-control measurement duty
- Use outside the stated personal-detector environmental range
03 Sample System Boundary
Sampling mode, conditioning components, and exclusions define where the analyzer responsibility ends and the sample system begins.
- clip-on personal detector
- audible alarm
- vibration alert
- LED warning
- IR event-log download
- Not configured as an extractive process analyzer
04 Calibration & Validation site-specific
Calibration method, interval, traceability, and audit support are shown only when structured data is available.
Zero / Span Method
Daily bump test with 25 ppm H₂S gas using BT-100 bump test station; calibration interval not stated in v1 source data
Interval
Daily bump test; calibration interval not stated in v1 source data
Span Gas Traceability
25 ppm H₂S bump-test gas stated in FAQ
05 I/O & Integration
Signal outputs and communication interfaces shown from the published specification fields on this product page.
Download
IR port
Data Logging
Event log 100 events
Alarm
95 dB audible + vibration
Integration Review Note
Confirm event-log download workflow, alarm configuration, and fleet documentation format during project integration review.
06 Maintenance & Spares site-specific
Tasks, consumables, and access items are shown only when structured maintenance data is available.
- Daily bump test with 25 ppm H₂S gas using BT-100 bump test station
- Event-log download through the IR port when fleet documentation is needed
- Battery and detector replacement planning against the stated continuous-runtime reference
- 25 ppm H₂S bump-test gas
- BT-100 bump test station consumables if used by site procedure
Cell Life
2-year continuous always-on runtime stated in specifications.
07 Application Evidence
Application context from complex industrial environments.
Application Context
Drilling contractors equipping 200+ well-site workers with personal H₂S monitors face high failure rates from clip-on units with non-replaceable batteries, which forces frequent fleet replacement and leaves blind spots in worker coverage.
Architecture Response
GS8320-H2S with a 2-year always-on battery removes the consumable-battery failure path, and the man-down alarm feature supports earlier worker-exposure detection during well-site rotations.
Frequently Asked Questions
Why does the battery last 2 years?
The ultra-low-power electrochemical sensor and ASIC design draw <50 µA in normal monitoring mode. The 3.6 V lithium cell provides continuous always-on operation without charging.
What is the man-down alarm?
If the detector detects no motion for a configurable period (default 30 seconds), it triggers a loud alarm to alert nearby workers that the wearer may be incapacitated.
Can I use it in ATEX Zone 0?
Yes, it is certified ATEX II 1G Ex ia IIC T4 Ga for Zone 0 — the most explosive atmospheres, including hydrogen and acetylene environments.
How do I download event logs?
Use the infrared (IR) port with the GasLink docking station. Event logs include alarm triggers, peak readings, TWA, STEL, and man-down events with timestamps.
Is it bump test compatible?
Yes, daily bump test with 25 ppm H₂S gas using the BT-100 bump test station. The station auto-records pass/fail for fleet compliance documentation.
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View ProductsCompare GS8320-H2S with adjacent options
Review neighboring models by technology, range, accuracy basis, and form factor before moving to quotation.
When this model is preferred
Select GS8320-H2S when its measurement principle, range, and form factor match the process duty and certification scope.
When to consider an alternative technology
Consider another analyzer when the gas matrix, sample temperature, hazardous-area scope, or reporting requirement falls outside the stated envelope.
Review GS8320-H2S against site conditions
Send gas range, sample temperature, pressure, moisture, and certification needs before final model selection.