Personal Gas Detection – Multi Gas – Confined Space Monitors – GX-3R Smallest four gas monitor

GX-3R
4-Gas Monitor

Personal Confined Space Monitor

The GX-3R one to 4 gas personal monitor picks up where the GX-2009 left off. It’s the world’s smallest four gas personal monitor weighing only 100 grams and can comfortably be worn within workers breathing zone (55mm W x 64mm H x 26mm D). It simultaneously monitors and displays LEL combustibles, O2, CO (Hydrogen compensated CO also available), and H2S.

Overview
Features
Applications
Specifications
Downloads
Accessories
Videos

Overview of the 4 Gas Personal Monitor

The GX-3R one to 4 gas personal monitor picks up where the GX-2009 left off. It’s the worlds smallest four gas personal monitor weighing only 100 grams and can comfortably be worn within workers breathing zone (55mm W x 64mm H x 26mm D). It simultaneously monitors and displays LEL combustibles, O2, CO (Hydrogen compensated CO also available), and H2S.

The Breathing zone

Optional Health and Safety defines the breathing zone as a 25cm radius around the worker’s nose and mouth and requires that worker exposure air samples collected in the breathing zone. Air sampling filters may be attached to the collar or lapel. Traditionally this means only a single gas monitor would be small enough for a worker to wear ‘In the breathing zone practically’. Now there is a four gas monitor smaller than many single gas monitors.

Sensors

This instrument represents the latest evolution of gas detection technology utilising a new generation of microsensors. The LEL sensor has a unique design, with two active filaments in one sensor to increase its resistance to silicone poisoning. If one filament gets poisoned, the second filament takes over. The new O2 sensor is electrochemical with a 5-year life span. H2S and CO are now available in a combo microsensor.

Non-compliance indicator

Safety supervisors will appreciate the non-compliance indicator. The instrument flashes it’s 3 LED lights every 30 seconds, if the device has been exposed to a gas or has not been bump tested or calibration is due. The 3 LED lights will continue to flash once every 30 seconds until the non-compliance condition has been resolved.

Features

3 Year warranty
Simultaneous detection of 4 gases
LEL, O₂, H₂S & CO
Smallest / Lightest 4 gas monitor on the market (55mm W x 64mm H x 26mm D), approx. 100 g
Simple 2-button operation
Alarms: audible, visual, & vibration
3 user adjustable alarm levels
Impact resistant body
with removable rubber boot
Large LCD Auto-backlit display
25 hours of operation (Lithium-ion battery)
40 hours in long-life mode
Field replaceable sensors & filters
Water and dust resistant design, IP68
Non-Compliance indicator

Applications

Confined spaces
Hazardous material
Refineries / petrochemical
Personal monitoring
Utilities
Oil and gas
Water / wastewater plants
Fire services
Pharmaceuticals
Construction

Specifications for the 4 Gas Personal Monitor

Gas Detected	All Combustible gases (Methane as standard)	Oxygen (O2)	Hydrogen Sulphide (H2S)	Carbon Monoxide (CO)
Detection Range (Increments)	0 – 100% LEL (1% LEL)	0 – 25.0% Vol (0.1% Vol)	0 – 100 ppm (0.5 ppm)	0 – 500 ppm (1 ppm)
Sampling Method	Diffusion sampling, hand aspirator or motorised pump optional
Display	Digital LCD displays with 7 segment plus 14 segment plus icon
Present Alarms (User Adjustable)	1st alarm 5% LEL 2nd alarm 10% LEL Over alarm 100% LEL	Low alarm 19.5% High alarm 23.5% Over alarm 40.0%	1st alarm 10 ppm 2nd alarm 15 ppm TWA alarm 10 ppm STEL alarm 15 ppm Over alarm 200 ppm	1st alarm 30 ppm 2nd alarm 60 ppm TWA alarm 30 ppm STEL alarm 60 ppm Over alarm 2000 ppm
Types of Alarms	Gas Alarm: Trouble Alarm: 2 Increasing alarms, STEL, TWA, overscale alarm. O2 decreasing/increasing. Sensor disconnection, low battery, circuit error, calibration range error
Display of Alarms	Gas Alarm: Trouble Alarm: Flashing LEDs, continuous buzzer (100 db @ 30 cm), flashing gas value, vibration Flashing LEDs, intermittent buzzer (95 db @ 30 cm), display of error message
Operating Temp & Humidity	40°C to +60°C, 0 to 95% RH, non-condensing (splash resistant)
Response Time	Within 30 seconds (T90)
Continuous Operation	25 hours after a full 3 hour charge
Power Source	Lithium-ion battery
Safety Design/Approvals	Ex da ia IIC T4 Ga or EX ia IIC T4 Ga and EX da ia I MA or EX ia I Ma (IECEx) / I M1Ex da ia I Ma//II 1G Ex da ia IICT4 Ga (ATEX)
Dimension & Weight	Approx 55mm (H) x 64mm (W) x 26mm (D), approx 100g
Case Material	Explosion proof, dust and water resistant to IP-68 (2m,1h) approval. Drop height 7m
Controls	Two buttons: POWER / MODE, AIR
Datalogging	Logs user ID, station ID, Calibration & Bump Test history, Alarm Events & Alarm Trends
Standard Accessories	Alligator clip Charger Calibration cup
Optional Accessories	Padded carrying case for GX-3R and accessories RP-3R Attachable sampling Pump with tapered rubber nipple, 3m hose and probe (up to 12m hose available) USB to IrDA downloading cable for datalogger SDM-3R calibration station Calibration Cup
Warranty	Three years material and workmanship

Datasheet

Manual

Quick Reference Guide

ATEX Certificate

Accessories

Bump/Calibration Station – SDM-3R for GX-3R and GX-3R Pro

RP-3R pump for the GX-3R Smallest four gas monitor — RP-3R pump for the GX-3R

Videos:

GX-3R

GX-3R Intro Features

GX-3R Startup

GX-3R Accessories

GX-3R Attach Remove Calibration Adaptor

GX-3R IP-68 Rating

Overview