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General| Display | LCD |
|---|---|
| Operating Temperature | -20°C to +50°C |
| Data Logging | Yes |
| Gases Detected | Methane, Carbon Monoxide, Hydrogen Sulfide, Oxygen |
| Sensor Type | Electrochemical |
| Measurement Range | 0-100 ppm H2S |
| Alarms | Visual, audible, and vibrating alarms |
Instructions for operating in hazardous environments, including area classifications.
Defines Zone 1 and Zone 2 areas for flammable gas presence.
Overview of the Tetra 3 unit and initial setup steps.
Step-by-step instructions for powering on the Tetra 3 monitor.
Details how the Tetra 3 alerts users to gas concentration thresholds being exceeded.
Step-by-step guide to starting the Tetra 3 unit and its warm-up.
Details normal operation display and confidence signals.
Describes how Time Weighted Average alarms are displayed and handled.
Details the Lithium-ion battery and its operational time.
Step-by-step procedure for safely charging the Tetra 3 unit's battery.
Describes TWA alarm display and how it cannot be cleared.
Step-by-step instructions for conducting a gas test on the unit.
Detailed procedure for calibrating sensors using calibration gas.
Lists common issues and solutions for gas testing and calibration.
Discusses auto-zero, monthly gas tests, and 6-monthly calibration.
Explains calibration using PC software versus the Gas Test Accessory Kit.
Guide for inserting new sensors and reassembling the unit.
Table detailing common error messages and recommended solutions.
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