Part 1. Operation; Features - BT CGA-411 Operation Manual

The Gas-Sentry® portable, combined methane, carbon monoxide/hydrogen sulfide, and
oxygen detectors are intrinsically safe, microprocessor based instruments designed to test
ambient air over a wide temperature range.
These detectors have many features for easy and reliable operation:
• Continuous Four-Gas Monitoring
Methane, carbon monoxide, hydrogen sulfide, and oxygen
• Measurements Over the Full Range of Natural Gas
The instrument detects methane over the full range (0-100%) of concentration
• TRACK GAS Scale
A sensitive scale with quick response makes it easy to find gas leaks
• Automatic Calibration
Calibration is performed automatically using Bascom-Turner's calibration gas
• Automatic Sampling
An intrinsically safe pump automatically samples ambient air or flue gas
• Automatic Self-Tests
Automatic checks of battery, sensors, pump. Tests for blockage and for
tight connections from probe to instrument
• Automatic Zero
Automatic zero adjustment without knobs to turn
• Audible and Visual Alarms
Audible and visual alarms for each gas
• Easy-to-Read, Bright Display
A bright, high efficiency LED display is easy to read indoors or outdoors
• A Water-Block and Dust Filter
A special Teflon® filter keeps dust and water out
• A Tough, Light-Weight Package
Housed in high impact ABS, the instrument weighs only 20 ounces
• Carryall
Leatherette carryall with shoulder strap for hand-free portability

PART 1. OPERATION

FEATURES

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