Exclusive UK Distributor and Service Centre for Gas Detection Equipment by Riken Keiki & RKI Instruments.
Exclusive UK Distributor and Service Centre for Gas Detection Equipment by Riken Keiki & RKI Instruments.
The SD-1 Gas detector head transmitter combustible has a built-in display and signal converter. It is a state-of-the-art hazardous area gas detection transmitter. The Instrument has ranges for ppm and %LEL. The SD-1 measures combustible vapours or gases like methane (CH4) or general hydrocarbons (HC), toxics Hydrogen Sulphide (H2S) and Carbon Monoxide (CO). In addition the IECEx ATEX has a certified flameproof enclosure . It is therefore also suitable for acetylene and hydrogen environments.
The SD-1 has a simple magnetic tool to control calibrations or maintenance adjustments without having to open the unit in a hazardous area. A “single man calibration” feature allows for easy and cost effective maintenance.
The SD-1 is powered by 24VDC and outputs a 4-20mA communication signal using a 3-wire type analogue transmission for external PLC. It can also is used with controllers like the RM-6000 , RM-5000 when required.
Users connect alarm sounders as well as beacons using the relay contacts . The built-in microprocessor features a self-diagnosis function. It can automatically zero to minimize maintenance work and costs.
New European legislation has reclassified Power station generator rooms as Zone 2 areas. Operators are therefore required to follow procedures to alleviate any explosion risk.
The Riken Keiki SD-1 has an IECEx ATEX certified flameproof enclosure suitable for Hydrogen environments. It is therefore ideal for use in a fixed Hydrogen detection system in power station generator halls. It can detect hydrogen at ppm levels giving plenty of warning of a leak.
The SD-1OX is an Oxygen monitor and detector. It has multiple range options that include 0-5% Vol ( Ideal for Furnace applications ) as well as 0-10% Vol. The SD-1OX has 0-25%, 0-50% Vol as well as 0-100% Vol ranges available on request. Customers use the SD-1OX in numerous applications in Furnace , Marine as well as the Petrochemical and Oil industries.
A suction adapter (SD-1D) fitted over the detector head is available that can be used in conjunction with a remote sampling pump such as the air aspirator unit (SD-1D-AS). This is ideal for applications where standard diffusion detection may not be suitable.
OX-600 Oxygen Deficiency Monitor
EC-600 Fixed Carbon Dioxide Monitor
NP-1000-H Portable Hydrogen Detector
| Model | SD-1 | SD-1D | ||
|---|---|---|---|---|
| Type | Type GP | Type NC | Type GP | Type NC |
| Detection Principle | Catalytic Combustion | New Ceramic | Catalytic Combustion | New Ceramic |
| Measuring Gas | Combustible Gases | |||
| Sampling Method | Diffusion | Sample Drawing (remote sampling pump required) | ||
| Flow Rate | —– | 0.8 ~ 2.0L/min | ||
| Measuring Range | 0-100% LEL | 0-100% LEL | 0-100% LEL | 0-100% LEL |
| Display | 7-seg digital LED (4 digits) | |||
| Alarm Setting | 25%LEL (standard) | 25%LEL (standard) | 25%LEL (standard) | 25%LEL (standard) |
| Alarm Delay Time | Approximately 30 seconds when exposed to gas concentration of 1.6 times alarm level | |||
| Output | Analog transmission (4-20mA), load resistance under 300 ohms | |||
| Gas Concentration signal / alarm contact (gas alarm, fault alarm, or common (gas, fault) alarm) | ||||
| Alarm Contacts | Normally Open or Normally Closed | |||
| Contact Capacity | 250VAC – 0.5 A or 30VDC – 0.5 A (resistant load) | |||
| Applicable Cable | CVVS • 1.25sq or 2.0sq • 3-core or CVVS • 1.25 sq or 2.0sq • 5-core (when the contact is used) | |||
| Signal Transmission distance & Cable | MAX 1.25km with CVVS 1.25sq cable, MAX 2.0km with CVVS 2.0sq cable | |||
| Fail Alert Self Diagnosis | Circuit faliure / Sensor failure | |||
| Fail Alert Display | FAULT lamp on (yellow) / detail displayed | |||
| Power Source | 24VDC ±10% • Power consumption 3W (maximum) | |||
| Operating Temperature & Humidity | -20 ~ +60°C (at a constant conditions) below 95% RH (non-condensing) | |||
| Dimension & Weight | Diffusion: Approx. 148mm(W) x 161mm(H) x 88mm(D), Approx. 2.0 kg Sample Drawing: Approx. 148mm(W) x 177mm(H) x 88mm(D), Approx. 2.2 kg Sample Drawing with Air Aspirator: Approx. 400mm(W) x 265mm(H) x 102mm(D), Approx. 5.6 kg |
|||
| Protection Level | IP-65 (except sensor parts) | |||
| Explosion Proof | Exd II CT5 ATEX, IECEx | |||
| Performance | IEC EN 60079-29-1 by TIIS applied to SD-1GP for H2, CH4, i-C4H10, C3H8 | |||
| Model | SD-1GH | SD-1DGH | SD-1DGH-AS |
|---|---|---|---|
| Type | Type GH | ||
| Detection Principle | Semiconductor | ||
| Measuring Gas | Toxic or Combustible Gases | ||
| Sampling Method | Diffusion | Sample Drawing (remote sampling pump required) | Air Aspiration |
| Flow Rate | —– | 0.8 ~ 2.0L/min | |
| Measuring Range | Refer to the list on the below. | ||
| Display | 7-seg digital LED (4 digits) | ||
| Alarm Setting | Depends on Gas | ||
| Alarm Delay Time | Approximately 30 to seconds when exposed to gas concentration of 1.6 times alarm level (depends on gas) | ||
| Output | Analog transmission (4-20mA), load resistance under 300 ohms | ||
| Gas Concentration signal / alarm contact (gas alarm, fault alarm, or common (gas, fault) alarm) | |||
| Alarm Contacts | Normally Open or Normally Closed | ||
| Contact Capacity | 250VAC – 0.5 A or 30VDC – 0.5 A (resistant load) | ||
| Applicable Cable | CVVS • 1.25sq or 2.0sq • 3-core or CVVS • 1.25 sq or 2.0sq • 5-core (when the contact is used) | ||
| Signal Transmission distance & Cable | MAX 1.25km with CVVS 1.25sq cable, MAX 2.0km with CVVS 2.0sq cable | ||
| Fail Alert Self Diagnosis | Circuit faliure / Sensor failure | ||
| Fail Alert Display | FAULT lamp on (yellow) / detail displayed | ||
| Power Source | 24VDC ±10% • Power consumption 3.1W (maximum) | ||
| Operating Temperature & Humidity | -20 ~ +60°C (at a constant conditions) below 95% RH (non-condensing) | ||
| Dimension & Weight | Diffusion: Approx. 148mm(W) x 161mm(H) x 88mm(D), Approx. 2.0 kg Sample Drawing: Approx. 148mm(W) x 177mm(H) x 88mm(D), Approx. 2.2 kg Sample Drawing with Air Aspirator: Approx. 400mm(W) x 265mm(H) x 102mm(D), Approx. 5.6 kg |
||
| Protection Level | IP-65 (except sensor parts) | ||
| Explosion Proof | Exd II CT5 ATEX, IECEx | ||
| Measuring Gas | Formula | Detection range | LEL |
|---|---|---|---|
| Acetic acid | C 2 H 4 O 2 | 0-3000ppm | 4.00 |
| Acetone | C 3 H 6 O | 0-10000ppm | 2.15 |
| Acetylene | C 2 H 2 | 0-3000ppm | 1.50 |
| Acrylonitrile | C 3 H 3 N | 0-1000ppm | 2.80 |
| Benzene | C 6 H 6 | 0-2000ppm | 1.20 |
| Buthyl acetate | C 6 H 12 O 2 | 0-5000ppm | 1.40 |
| Buthyl acrylate | C 7 H 12 O 2 | 0-1000ppm | 1.50 |
| n-Buthyl alcohol | C 4 H 10 O | 0-5000ppm | 1.40 |
| Chloroform | CHCl 3 | 0-5000ppm | |
| Cyclohexane | C 6 H 12 | 0-5000ppm | 1.30 |
| Cyclohexanone | C 6 H 10 O | 0-1000ppm | 1.10 |
| 2-ethoxyethyl acetate | C 6 H 12 O 3 | 0-3000ppm | 1.70 |
| Ethane | C2H6 | 3.00 | |
| Ethanol | C2H5OH | 3.30 | |
| Ethyl acetate | C 4 H 8 O 2 | 0-5000ppm | 2.10 |
| Ethyl alcohol | C 2 H 5 OH | 0-5000ppm | 3.30 |
| Ethylene | C 2 H 4 | 0-5000ppm | 2.70 |
| Ethylene oxide | C 2 H 4 O | 0-1000ppm | 3.00 |
| Flon 11 | CCl 3 F | 0-5000ppm | |
| Flon 12 | CHClF 2 | 0-5000ppm | |
| Hydrogen | H 2 | 0-10000ppm | 4.00 |
| Hydrogen | H 2 | 0-100%LEL | 4.00 |
| Hydrogen Sulfide | H 2 S | 0-100ppm | |
| Iso-Butane | i-C4H10 | 0-100%LEL | 1.80 |
| Isopropyl alcohol (IPA) | C3H8O | 0-5000ppm | 2.00 |
| LNG (CH4 base) | CH4 | 0-100%LEL | 5.00 |
| LPG (C3H8 base) | C3H8 | 0-100%LEL | 2.00 |
| MEK | C4H8O | 1.80 | |
| Methane | CH4 | 0-100%LEL | 5.00 |
| Methyl alcohol | CH 3 OH | 0-5000ppm | 5.50 |
| Methyl bromide | CH 3 Br | 0-1000ppm | 8.60 |
| Methyl ethyl keton | MEK | 0-5000ppm | 1.80 |
| Methyl isobuthyl keton | MlBK | 0-500ppm | 1.20 |
| Methylene chloride | CH 2 Cl 2 | 0-5000ppm | 13.00 |
| n-Hexane | n-C 6 H 14 | 0-5000ppm | 1.20 |
| Propane | C3H8 | 0-100%LEL | 2.00 |
| Tetrahydrofuran | THF | 0-2000ppm | 2.00 |
| Toluene | C 7 H 8 | 0-3000ppm | 1.20 |
| Trichloroethylene | C 2 HCl 3 | 0-5000ppm | 7.90 |
| Vinyl chloride | VCM | 0-3000ppm | 3.80 |
| Xylene | C 8 H 10 | 0-2000ppm | 1.00 |
Portable Combustible
Gas Detector
Carbon Monoxide Monitor
Oxygen Deficiency Monitor
Intelligent Gas Detector
Contact Weatherall
Applications Bulletin #14 Fixed Gas Monitoring for Power Station Generator Rooms