Multifunctional Sensor Unit - New Intelligent Sensor
The new Model GD-70D series smart gas detection transmitter series sets a new standard for performance, flexibility, and versatility. The GD-70D sample-draw transmitter offers an array of sensor technologies unmatched in the industry, including unique offerings, such as our hydrogen-specific ppm and LEL versions.
The long life high capacity pump and wide variety of sensing elements are replaceable in a few seconds, with no tools required! The smart sensors retain all calibration and sensor-specific data in non-volatile memory, so sensor can be hot-swapped in the field with no programming required. The sensors also retain calibration information, which means they can be conveniently calibrated separate from the transmitter, avoiding transport of calibration gases to the field location. The GD-70D firmware automatically corrects for long-term zero and span “drift” minimizing maintenance and maximizing reliability.
The GD-70D can be used as a stand-alone device, offering a number of communication protocols to existing PLC systems, or can be integrated with RKI’s Beacon series of single and multi-channel controllers.
All GD-70D transmitters include large, easy to read integral LCD display, tri-color bar graph for visual notification of alarm status, programmable low and high alarm relays, and fault relay. Pump flow is self-tuning for maintenance-free operation. Because all GD-70D base units are identical, sensors can be interchanged with no programming or tools required, resulting in maximum flexibility to the user.
- Features
- Specifications
- Gases
- Downloads
- Callouts
Features |
Applications |
|
 |
MAIN UNIT
| Model | GD-70D | GD-70D-NT | GD-70D-ET |
| Communication | 4-20mA DC | DC power line communication | PoE Method |
| Detection principle | Different type depending upon sensor unit and detectable gas (see table) | ||
| Sampling method | Sample drawing types (auto-adjustment of flow rate) 0.5 / min +/-10% | ||
| Display | • Large LCD display (white backlight) • Gas concentration • Flow rate, communication status, Pyrolyzer status, gas detectored • Error code, content of error | ||
| Gas alarms | Two alarm levels: 1st alarm - Red 2nd alarm - Red Fault alarm: Yellow | ||
| External output | 1st, 2nd, and trouble alarms : Relay contact output for each alarm | ||
| Self diagnostic function | system failure, sensor failure, flow failure, communication error NT / ET / Analog | ||
| Datalogging | Event history, alarm history, calibration history. Alarm trend (180 sec before / after 1st alarm) | ||
| Operation temp. & humidity | 0 ~ 40ºC, 30 ~ 70% RH (non-condensing) | ||
| Operating settings | All operational settings are user adjustable through front panel | ||
| Power requirements | DC 24V+/- 10%, approx 1.5W (Max 4W including sensor unit) Note: Approx. 2.5W (Max 5W) with SGU sensor unit | PoE standard arrangement | |
| Dimensions | 2.8”W x 4.7”H x 5.9”D (70W x 120H x 150Dmm) | ||
| Weight | Approx. 0.9kg (2.0lbs), including sensor unit | ||
| Mounting | Wall-mounting base plate by 2 or 3 screws | ||
| Sampling tubing | 4 x 6mm PTFE tubing recommended. PP half union fittings provided as standard accessories | ||
| Bushing | Cable type varies depending on communication method (Cable bushing optional) | ||
PYROLYSER UNIT
| Model | PLU-70 |
| Application | NF3 / TEOS gases detected in air |
| Usage | Used by connecting to “GD-70D” (Main unit) |
| Power Lamp | LED (Green color) Normal: Light-on Warming-up: Flashing at every 1 sec interval Trouble: Flashing at every 0.2 sec interval |
| Self-diagnostic function | Pyrolyser unit trouble Fan Trouble System trouble |
| Operating temp. & humidity | 0-40° C, 30-70% RH (non-condensing) |
| Operational settings | All operational settings are user adjustable through front panel. |
| Power requirements | DC 24V+/- 10%, approx. 25W (max) |
| Dimensions | 2.8”W x 4.7”H x 5.9”D (70W x 120H x 150Dmm) |
| Weight | Approx. 1.2kg (2.6lbs) |
| Mounting | Wall-mounting base plate by 2 or 3 screws |
| Sampling | 4x6mm PTFE tubing recommended. PP half union fittings provided as standard accessories |
| Bushing | 1.25sq 2 core cable for power supply DC24V (Cable bushing optional) |
Target Gases |
TLV-TWA |
Detection range* |
Ammonia (NH3) |
25 ppm |
0 - 75.0 ppm |
Antimony Pentacloride SbCl5 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Arsenic Pentachloride AsCl5 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Arsenic Trichloride AsCl3 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Arsenic Pentafluoride AsF5 |
(C) 2 ppm |
HF 0 - 9 ppm |
Arsenic Trifluoride AsF3 |
(C) 2 ppm |
HF 0 - 9 ppm |
Arsine AsH3 |
5 ppb |
0 - 0.2 ppm |
Boron Tribromide BBr3 |
(C) 2 ppm |
HBr 0 - 6 ppm |
Boron Trichloride BCl3 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Boron Trifluoride BF3 |
(C) 2 ppm |
HF 0 - 9 ppm |
Carbon Monoxide CO |
25 ppm |
0 - 75 ppm, 0 - 150 ppm or 0 - 200 ppm |
Chlorine Cl2 |
0.5 ppm |
0 - 3 ppm |
Chlorine Trifluoride ClF3 |
(C) 0.1 ppm |
0 - 0.6 ppm |
Diborane B2H6 |
0.1 ppm |
0 - 0.30 ppm |
Dichlorosilane SiH2Cl2 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Fluorine F2 |
1 ppm |
0 - 3 ppm |
Germanium Tetrachloride GeCl4 |
(C) 2 ppm |
HCl 0 - 0.6 ppm or 0 - 15 ppm |
Hydrogen Bromide HBr |
(C) 2 ppm |
0 - 6 ppm |
Hydrogen Chloride HCN |
(C) 2 ppm |
0 - 6 ppm or 0 - 15 ppm |
Hydrogen Fluoride HF |
(C) 2 ppm |
0 - 9.00 ppm |
Molybdenum Hexafluoride MoF6 |
(C) 2 ppm |
HF 0 - 9 ppm |
Molybdenum Pentachloride MoCl5 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Nitric Oxide NO |
25 ppm |
0 - 100 ppm |
Nitrogen Trifluoride NF3 |
10 ppm |
0 - 30 ppm |
Ozone O3 |
0.1 ppm |
0 - 0.6 ppm |
Phosphine PH3 |
0.3 ppm |
0 - 1.0 ppm |
Phosphorus Oxychloride POCl3 |
0.1 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Phosphorus Pentachloride PCl5 |
0.1 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Phosphorus Pentafluoride PF5 |
(C) 2 ppm |
HF 0 - 9 ppm |
Phosphorus Trichloride PCl3 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Silane SiH4 |
5 ppm |
0 - 15.0 ppm |
Silicone Tetrachloride SiCl4 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Silicone Tetrafluoride SiF4 |
(C) 2 ppm |
HF 0 - 9 ppm |
Sulfur Tetrafluoride SF4 |
(C) 2 ppm |
HF 0 - 9 ppm |
Tetraethyl Orthosilicate SiC8H20O4 |
(C) 10 ppm |
TEOS 0 - 15 ppm |
Tin Tetrachloride SnCl4 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Trichlorosilane SiHCl3 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Tungsten Hexachloride WCl6 |
(C) 2 ppm |
HCl 0 - 6 ppm or 0 - 15 ppm |
Tungsten Hexafluoride WF6 |
(C) 2 ppm |
HF 0 - 9 ppm |
Hydrogen Selenide H2Se |
0.05 ppm |
0 - 0.20 ppm |
* Specifications subject to change without notice.