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RKI Instruments Sensor, Ionization, 0 - 15.0 PPM Tetraethyl Orthosilicate (TEOS), GD-70D - SSU-1925-TEOS
Item #:
SSU-1925-TEOS
Brand:
RKI Instruments
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SSU-1925-TEOS Sensor, Ionization, 0 - 15.0 PPM Tetraethyl Orthosilicate (TEOS), GD-70D by RKI Instruments
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:
- Common platform (Main/Sensor/Pump) to all detection methods
- Universal Main-unit (All sensor types)
- Multifunctional Sensor unit (New Intelligent sensor)
- No internal tubing (Main unit) /No coil (Pump)
- Front access/No tool required/Easy replacement of sensor and pump
- Large size LCD (Easily viewable)
- Reduced maintenance through enhanced troubleshooting firm ware functions
- Smaller Footprint
- Simple upgrade from existing unit
- Reuse & Recycle
- Global standard
*Please note we can only ship RKI products to customers within the United States
| 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) |
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| Sampling method | Sample drawing types (auto-adjustment of flow rate) 0.5 / min +/10% |
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| Display | Large LCD display (white backlight) Gas concentration Flowrate, communication status, Pyrolyzer status, gas detectored Error code, content of error |
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| Gas alarms | Two alarm levels: 1st alarm - Red 2nd alarm - Red Fault alarm: Yellow |
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| External output | 1st, 2nd, and trouble alarms : Relay contact output for each alarm |
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| Self diagnostic function | system failure, sensor failure, flow failure, communication error NT / ET / Analog |
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| Datalogging | Event history, alarm history, calibration history. Alarm trend (180 sec before / after 1st alarm) |
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| Operation temp. & humidity | 0 ~ 40ºC, 30 ~ 70% RH (non-condensing) |
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| 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 |
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| Operating settings | All operational settings are user adjustable through front panel |
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| Dimensions | 2.8"W x 4.7"H x 5.9"D (70W x 120H x 150Dmm) |
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| Weight | Approx. 0.9kg (2.0lbs), including sensor unit |
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| Mounting | Wall-mounting base plate by 2 or 3 screws |
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| Sampling tubing | 4 x 6mm PTFE tubing recommended. PP half union fittings provided as standard accessories |
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| Bushing | Cable type varies depending on communication method (Cable bushing optional) |
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| Model | ESU |
SGU |
SSU |
OSU |
NCU |
| Detection principle | Electrochemical cell |
Semiconductor |
Pyrolysis-particle |
Galvanic cell |
Catalytic combustion |
| Gas detected and detection range | Refer to list of detectable gases |
0-2000ppm H2, CH4, or CH2F2 (R-32) in air and others |
0-15ppm TEOS in air |
0-25% O2 in air |
0-100% LEL H2, CH4, and others |
| Self diagnosis function | Sensor trouble, system failure |
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| Date logging function | Event history, alarm history, calibration history, Alarm trend (60 sec. before/after 1st alarm) |
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| 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 | Pyrolyzer 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. Tube fittings provided as standard accessories |
| Bushing | 1.25sq 2 core cable for power supply DC24V (Cable bushing optional) |
| ESU Gas Detected | ACGIH TLV-TWA |
Detection Range |
| Ammonia (NH3) | 25 ppm |
75 ppm |
| Arsine AsH3 | 5 ppb |
0.2 ppm |
| Bromine BR2 | 0.1 ppm |
1 ppm |
| Carbon Monoxide CO | 25 ppm |
75 ppm* 150 ppm 300 ppm* |
| Chlorine Cl2 | 0.5 ppm |
3 ppm 1.5 ppm* |
| Chlorine Trifluoride ClF3 | (C) 0.1 ppm |
0.6 ppm |
| Diborane B2H6 | 0.1 ppm |
0.3 ppm |
| Disilane Si2H6 | (C) 2 ppm |
15 ppm |
| Dimethylamine (CH3)2NH | 5 ppm |
15 ppm |
| Diethylamine (CH3CH2)2NH | 5 ppm |
15 ppm |
| Fluorine F2 | 1 ppm |
3 ppm |
| Germane GeH4 | (C) 2 ppm |
0.8 ppm |
| Hydrogen Bromide HBr | (C) 2 ppm |
6 ppm, 9 ppm* |
| Hydrogen Chloride HCI | (C) 2 ppm |
6 ppm, 15 ppm* |
| Hydrogen Fluoride HF | 0.5 ppm |
9 ppm, 3 ppm* |
| Hydrogen Selenide H2Se | 0.05 ppm |
0.2 ppm |
| Methylamine CH3NH2 | 5 ppm |
15 ppm |
| Nitric Oxide NO | 25 ppm |
100 ppm |
| Nitrogen Dioxide NO2 | 3 ppm |
15 ppm |
| Nitrogen Trifluoride NF3 | 10 ppm |
30 ppm |
| Ozone O3 | 0.1 ppm |
0.6 ppm |
| Phosphine PH3 | 0.3 ppm |
1. ppm |
| Silane SiH4 | 5 ppm |
15 ppm |
| Sulfur Dioxide SO2 | — |
6 ppm |
| Trimethylamine (CH3)3N | 5 ppm |
15 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 |
| SGU Gas Detected | ACGIH TLV-TWA |
Detection Range |
| Methane CH4 | 1,000 ppm |
2,000 ppm 5,000 ppm* |
| Dichloroethene C2H2CL2 | 200 ppm |
600 ppm |
| Isopropyl Alcohol CH3CHOHCH3 | 200 ppm |
2,000 ppm |
| Propane CH3H8 | 1,000 ppm |
2,000 ppm 5,000 ppm* |
| Methyl Alcohol CH3OH | 200 ppm |
1,000 ppm 2,000 ppm* |
| Hydrogen H2 | — |
500 ppm* 1,000 ppm* 2,000 ppm |
| Difluoromethane R-32 | 1,000 ppm |
2,000 ppm |
| Fluoro Methane R-41 | 1,000 ppm |
2,000 ppm |
| Carbonyl Sulfide COS | — |
2,000 ppm |
| Dichloromethane CH2CL2 | 50 ppm |
2,000 ppm |
| NCU Gas Detected | LEL % Vol. Levels |
Detection Range |
| Methane CH4 | 5% Vol. |
100% LEL 2.0 Vol. |
| Isobutane i-C4H10 | 1.8% Vol. |
100% LEL |
| Hydrogen H2 | 4% Vol. |
2.0 Vol. |
| SSU Gas Detected | ACGIH TLV-TWA |
Detection Range |
| Trimethyl Silane TMS | — |
15 ppm |
| Trimethoxysilane TRIMOS | — |
15 ppm |
| Tetraethyl Orthosilicate TEOS | 10 ppm |
15 ppm |
| OSU Gas Detected | ACGIH TLV-TWA |
Detection Range |
| Oxygen O2 | — |
25% Vol. |