Key Parameters & Specifications Product Line: Net Safety Monitoring Model Series: NTM (Net Safety Toxic Transmitter) Type: Toxic Gas Transmitter Detection Method: Electrochemical sensor technology Sensor Compatibility: Designed for various toxic gas sensors (H₂S, CO, SO₂, NH₃, Cl₂, etc.) Housing Material: T (Aluminum or stainless steel per configuration) Approvals: B (Hazardous area approvals - CSA/FM/ATEX/IECEx) Display: N (Standard display or no display option) Output Signal: S (4-20 mA with HART® communication) Warranty/Options: PBP5 (Extended warranty and specific options package) Key Features TruCal® Technology: Automatic calibration verification without exposing sensors to gas Sensor Replacement: Hot-swap capability without power-down or reconfiguration HART Communication: Digital communication for remote monitoring and configuration Dual Redundant Modbus: Optional RS-485 Modbus communication Large Backlit Display: Easy-to-read local display with multi-language support Modular Design: Field-replaceable electronics and sensor modules Hazardous Area Certified: Suitable for Class I Division 1 and Zone 1 areas Sensor Options The NTM-330 is compatible with a wide range of toxic gas sensors including: Hydrogen Sulfide (H₂S) Carbon Monoxide (CO) Sulfur Dioxide (SO₂) Ammonia (NH₃) Chlorine (Cl₂) Nitrogen Dioxide (NO₂) Hydrogen Cyanide (HCN) And many others Typical Applications Oil and Gas: Refineries, well sites, processing facilities Chemical Plants: Toxic gas monitoring in production areas Water/Wastewater: Chlorine and ozone monitoring Mining: Toxic gas detection in underground operations Pulp and Paper: Chlorine dioxide and other toxic gas monitoring Confined Spaces: Personnel safety monitoring Specifications Details Parameter Value Power Supply 12-30 V DC Power Consumption < 1 W typical Output Signal 4-20 mA (sink or source) with HART Communication HART (standard), RS-485 Modbus (optional) Display Large backlit LCD (optional) Enclosure Material Aluminum or stainless steel Ingress Protection IP66/67 Temperature Range -40°F to 149°F (-40°C to 65°C) Humidity 0-99% RH non-condensing Approvals CSA, FM, ATEX, IECEx (depending on configuration) Warranty Extended per PBP5 option