RKI Instrument’s model SD-1 Series smart combustible gas, toxic gas, oxygen, and organic vapor detector/transmitter is a robust and reliable explosion proof design for detecting LEL and ppm levels of hazardous atmospheres. In addition to measuring the common %LEL levels of methane, hexane and
isobutane, for example, the SD-1 Series also has the capability of measuring a wide variety of toxic organic compounds in a PPM range such as acrylonitrile, ethylene oxide, n-methyl pyrolidone, methylene chloride and many others. This gives the SD-1 Series a unique niche in RKI’s gas detector line-up. The SD-1 has an ATEX/IECEX approval for the explosion class ExdIICT5 and has an IP-65/67 ingress protection rating.
The SD-1 has a 4-20mA signal output as well as relay contacts for interfacing with other control systems or monitoring facilities. All SD-1 types are also available with HART communication instead of 4-20mA relay. SIL2 is available for the IR, EC and OX types. In facilitating non-intrusive conditions in hazardous atmospheres, the SD-1 can be calibrated and it’s menus navigated with magnetic switches and a magnetic key.
Features
- Wide range of detectable gases
- % LEL Combustibles, catalytic
- % LEL Combustibles, IR
- H2S, CO, & O2
- PPM for acrylonitrile, ethylene oxide, n-methyl pyrolidone, methylene chloride, and many others
- Sensor types include
- Catalytic, Galvanic Cell, MOS, IR, & Electrochemical
- Direct digital display of gas readings
- HART communication protocol
- HART over 4-20mA or 4-20mA linear output
- Available with SIL2 approval (IR, EC, OX versions)
- Easy maintenance using a magnetic key
- Self-diagnosis by microprocessor
- Low power operation (Maximum: 3W)
- Explosion proof: ATEX, IECEx, ExdIICT5\
Applications
- LNG Terminal
- Petrochemical/Chemical plants
- Power plant
- Utilities
- Iron and steel works