S-Guard-CO2
Infrared Gas Transmitter
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This product has been discontinued and is no longer available. In many cases we can still service and calibrate it. Talk to our team about spares or alternatives.
The GasTech S-Guard Series GIR-3000 is a single-source, dual-wavelength infrared gas detector for continuous monitoring in explosion-hazardous areas. It provides a 4-20mA analog output with remote alarm, fault and calibration signals.
KEY BENEFITS
- Continuous detection in explosion-hazardous areas with flameproof structure
- State-of-the-art infrared detection principle
- Single-source, dual-wavelength self-compensating design
- Long service life of more than 5 years
- Low operating cost, maintenance free
+ more in the Description tab below
Self-Compensating Infrared Detection for Hazardous Areas
The GasTech Australia Smart Guard series S-Guard GIR-3000 is a single-source, dual-wavelength instrument. The sensing and reference elements are self-compensating for optical integrity and other signal inhibitors, ensuring reliable readings over the long term.
An industry-standard 4-20mA analog output provides remote alarm, fault and calibration signals, while RS-485 Modbus (isolated) serial communication makes it easy to configure a wider monitoring system. A built-in microprocessor delivers self-diagnosis and a rapid response time within 10 seconds.
Built with a flameproof structure for continuous detection in explosion-hazardous areas, the S-Guard operates even in oxygen-free environments and offers a long service life of more than five years with low, maintenance-free running costs.
Benefits
- Continuous detection in explosion-hazardous areas with flameproof structure
- State-of-the-art infrared detection principle
- Single-source, dual-wavelength self-compensating design
- Long service life of more than 5 years
- Low operating cost, maintenance free
- Operates in no-oxygen environments
- Self-diagnosis with built-in microprocessor
- Rapid response time within 10 seconds
- Two-stage alarm with one fault relay output
- 4-20mA output with RS-485 Modbus serial communication
Detection Principle
Infrared, single source dual wavelength
Output Signal
4-20mA DC
Communication
RS-485 Modbus (isolated) serial
Response Time
Within 10 seconds
Service Life
More than 5 years
Display
Built-in backlit LCD
Alarms
Two stage alarm with one fault relay output
Calibration
Auto calibration and program setting with magnet control
Structure
Flameproof for explosion-hazardous areas
Model 67-9090-CO2
S-Guard IR Smart Transmitter, 4-20mA, 0-100% LEL IECEx
Model 67-9090-R-CO2
S-Guard Smart IR Remote Sensors Smart Transmitter, 4-20mA, 0-100% LEL IECEx
It uses a single-source, dual-wavelength infrared detection principle, with self-compensating sensing and reference elements for optical integrity.
Yes. The infrared detection principle allows the S-Guard to operate reliably in oxygen-free environments, unlike catalytic detectors.
It provides an industry-standard 4-20mA DC analog output for remote alarm, fault and calibration signals, plus RS-485 Modbus (isolated) serial communication.
It offers a long service life of more than five years with low, maintenance-free operating costs.
The S-Guard delivers a rapid response time within 10 seconds, supported by a built-in microprocessor with self-diagnosis.
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