Intrinsically Safe HMT370EX Transmitter
The Intrinsically Safe HMT370EX Transmitter is the latest generation of intrinsically safe humidity and temperature transmitters engineered for use in hazardous environments such as offshore platforms, chemical plants, and pharmaceutical manufacturing. Built to perform with precision in areas classified as Zone 0, 1, 2 or Division 1 and 2, the HMT370EX offers unmatched accuracy and stability in the most demanding applications.
This advanced sensor system features interchangeable probes, wide operating ranges, and exceptional long-term measurement stability. Whether installed in confined spaces, explosive gas zones, or harsh industrial atmospheres, the HMT370EX delivers reliable environmental data you can trust—fully compliant with ATEX, IECEx, and CSA certifications.
Key Features:
✅ ATEX, IECEx, CSA Certified for Zone 0 / Division 1 use
✅ Interchangeable probe modules for flexible deployment
✅ IP66-rated stainless steel housing for harsh environments
✅ Analog and digital outputs (4–20 mA, Modbus RTU)
✅ High-accuracy humidity and temperature sensing
✅ Intrinsically safe maintenance and calibration in the field
✅ Optional display with multilingual interface
✅ Wide temperature and RH operating ranges
✅ Compatible with cleanroom, HVAC, and industrial gas monitoring
📦 Package Options:
🔹 Transmitter with standard HMP370 probe and mounting hardware
HMT370EX Technical Specifications:
| Specification | Details |
|---|---|
| Model | HMT370EX |
| Measurement Parameters | Relative Humidity (RH), Temperature |
| Humidity Range | 0 to 100 %RH (non-condensing) |
| Temperature Range | -40°C to +60°C (depending on probe) |
| Accuracy | ±1.0 %RH / ±0.2 °C (typical) |
| Output Signals | 4–20 mA, Modbus RTU |
| Certifications | ATEX, IECEx, CSA (Zone 0 / Division 1 approved) |
| Probe Type | Interchangeable; various models available |
| Display (Optional) | LCD, multilingual interface |
| Housing Material | Stainless steel |
| Ingress Protection | IP66 (dust-tight and water-resistant) |
| Operating Voltage | 10 to 35 VDC |
| Mounting | Wall or duct mount |
| Calibration | Field-serviceable, NIST-traceable calibration |
Certifications & Compliance:
🔗 ATEX – Approved for Zone 0, 1, and 2 explosive atmospheres
🔗 IECEx – Global standard compliance for gas and dust hazards
🔗 CSA – Class I, Division 1 certified for North America
🔗 IP66 Enclosure – Full protection against water jets and dust ingress
🔗 Download Datasheet
Applications of HMT370EX:
🔹 Oil & Gas Facilities
🔹 Chemical & Petrochemical Plants
🔹 Pharmaceutical Cleanrooms
🔹 Food & Beverage Production
🔹 Environmental Monitoring Stations
What’s in the Box?
📦 1x HMT370EX Transmitter Unit
📦 1x Humidity & Temperature Probe
📦 1x Mounting Bracket
📦 1x Documentation Kit
📦 1x Calibration Certificate
Ordering & Shipping Details
📦 Lead Time: 2-3 weeks
📍 Shipping Terms: Worldwide delivery / Expedited available
💳 Payment Options: Credit Card, PayPal, Net 30 Terms
FAQs:
Is the HMT370EX safe for Zone 0 installations?
Yes, it is certified for use in Zone 0 hazardous areas and can be safely operated in explosive gas atmospheres.
Can the probe be replaced or upgraded?
Absolutely. The transmitter supports interchangeable probes for easy upgrades or maintenance.
Does it support digital communication?
Yes, it supports both analog (4–20 mA) and digital (Modbus RTU) outputs for integration into control systems.
Is there an option with a display?
Yes, a multilingual LCD display module is available as an optional add-on for local monitoring.
