Part Number: 65-1080S-xxx (xxx denotes gas)
D-Guard²S
List of Benefits
- Built in sounder strobe and relay board
- HART 7.0 communications
- 5 year, O2 sensors
- Wide range of toxic gases monitored
- Ultra - Clear high resolution display
- Display illumination
- Full sensor temperature compensation
- Integrated dynamic response testing
- Timed/HART triggered sensor self-test
- Continuous operating condition monitoring
- Non-intrusive setup and calibration
- Guided intuitive user interface
- Detector isolate feature
- High impact anti-static housing
- IP65 rated
Designed from the ground up to provide reliable, accurate and flexible gas detection, the D-Guard²S incorporates leading edge technology. From the basic design philosophy that includes functional safety compatible techniques, through to the advanced functionality that provides repeatable and dependable performance. D-Guard²S is powerful, yet simple to use, making it an ideal single solution detector with low ownership cost.
Inclusion of HART communications enables access to a greater depth of information than is possible over a basic current loop signal. Real time gas readings, diagnostic information and sensor testing are available via the HART link. Remote current loop rescaling and test mode triggering is also possible via the HART link.
D-Guard²S includes a high resolution ultra-low power display with super clear text and graphics. The display offers visibility in low light spaces right through to use in direct sunlight. The user interface is intuitive and provides on screen guidance for carrying out calibration and configuration tasks. Sensor temperature compensation results in long term stability, accuracy and reliability. D-Guard²S continually monitors the sensor temperature and applies corrections to both the zero operating point and the response to gas, allowing the detector to remain steady under zero gas conditions and accurate when measuring gas concentration.
Response time testing functionality is integral to D-Guard²S to give a true measurement of dynamic gas monitoring performance. As standards begin to emerge requiring such testing to be carried out, D-Guard²S is equipped to make the task simple. D-Guard²S has been designed to efficiently allow the use of a single board to cover all detector types and ranges for toxic gases, oxygen, flammable gases and carbon dioxide. Configuration is simple and quick via the user interface which is accessed by the supplied magnetic stylus. D-Guard²S is housed in a specialised highly impact resistant non-conductive plastic, static preventing enclosure, which is UV stable.
| Specification | Detail Description |
|---|---|
| Typical range of Gases Detected | |
| Ammonia (NH3) | 0 to 100 ppm in 1 ppm increments |
| Carbon Monoxide (CO) | 0 to 100 ppm in 1 ppm increments |
| Carbon Dioxide (CO2) | 0-1.5% v/v in 0.01% Vol increments |
| Chlorine (CL2) | 0 to 10 ppm in 0.1 ppm increments |
| Ethylene Oxide (ETO) | 0 to 20 ppm in 0.1 ppm increments |
| Hydrogen Cyanide (HCN) | 0 to 50 ppm in 1 ppm increments |
| Hydrogen Sulfide (H2S) | 0 to 200 ppm in 1 ppm increments |
| Hydrogen Chloride (HCL) | 0 to 200 ppm in 1 ppm increments |
| Nitric Oxide (NO) | 0 to 100 ppm in 1 ppm increments |
| Nitrogen Dioxide (NO2) | 0 to 10 ppm in 0.1 ppm increments |
| Oxygen (O2) | 0 to 25% in 0.1 %Vol increments |
| Ozone (O3) | 0 to 2 ppm in 0.01 ppm increments |
| Phosphine (PH3) | 0 to 1 ppm in 0.01 ppm increments |
| Sulfur Dioxide (SO2) | 0 to 10 ppm in 0.1 ppm increments |
| Other gases and ranges | Are available on request |
| Specifications | |
| Analogue output | Two wire 4-20mA |
| Digital Communication | HART 7.0 over two-wire loop |
| Indication | 400 x 240 pixel Graphical Back Light LCD display |
| Relay Output 1 | Low Alarm - Single Pole Double Throw (SPDT) |
| Relay Output 2 | High Alarm - Single Pole Double Throw (SPDT) |
| Relay Output 3 | Fault - Normally Energised |
| Input Power | 10-30VDC |
| Response Time | Typical response T90 in less than 40 sec (Toxic) and less than 10 sec (CH4), cell dependant |
| Operating Temperature | -20.C to +70.C (-20.C to +55.C NDIR Version and all other variants) |
| Humidity Range | 15-90% non-condensing |
| Accuracy / Repeatability | Less than AS2290.3, ANZ60079.29 and AS4641 |
| Sensor Style | 4 series sized plug in sensors |
| Calibration | Non-intrusive, magnetic stylus |
| Drift | Less than 3% signal loss per 12 months |
| Dimensions | 120mm x 120mm x 95mm |
| Enclosure | Anti-static / UV stable chemical resistant Delrin |
| Sounder Strobe | 98dB, flashing red |
| IP Rating | IP65 |
| Warranty | 2 Years on Instrument |
| Sensor warranty | varies with cell |
D-Guard2s datasheet.pdf 438.07 KB
Manual - Current versions
201024-D-Guard²S Instruction manual firmware 2.xx rev 2.pdf 4.77 MB
201017 D-Guard² non certified firmware 2.xx rev 5.pdf 1.12 MB
Manual - Superseded versions
20181024-GasTech-D-Guard2S-Fixed-Gas-Detector-Manual.pdf 4.57 MB