Combustible Gas Detectors
- SIL 2 Certified
The SGOES Gas Detector measures the concentration of hydrocarbon gases present in a monitored environment. It is configured to report alarms when the gas concentrations in the environment reach the two independently programmable levels, expressed as a percentage of the lower explosive limit (LEL) in air. Its sensor detects and quantifies the presence of hydrocarbons by measuring their absorption of infrared light (IR).
The built-in continuous self-check function will notify you if anything is obstructing the detector’s field of view or if there are circuit integrity problems. The unit comes standard with multiple outputs and you can choose to connect the detector via 4-20mA, RS485 or it can relay to your system for reliable communication.
For those applications where condensation may occur, an internal heater will activate to prevent any damage. And with power consumption less than 4.5W, ESP’s gas detector assures low power costs.
The SGOES allows for a seamless calibration process with on-site non-intrusive calibration via magnetic wand or using a HART hand held device. In fact, it is so reliable it only needs calibration every two years.
Because the device does not depend on the presence of oxygen in a mixture of gases, it can function effectively in environments where other sensor technologies cannot. Moreover, it is not sensitive to gases such as nitrogen, oxygen, carbonic acid, ammonia, or hydrogen sulfide, that may adversely affect other types of sensors. This makes the SGOES an excellent choice for environments where non-hydrocarbon gases are present and where monitoring of hydrocarbons like methane and propane is required.
The detector comes in both stainless steel and aluminum housing.
Wide Operating Temperature
2 year Calibration Interval
5 year warranty
Power Requirements: 24VDC nominal (18-32VDC range)
Power Consumption: 7.9W maximum
Signal Outputs: +4-20mA, Digital RS485 MODBUS RTU, HART, Relays
2 User Programmed Alarm Relays (factory default setting: NO)
1 Fault Condition Programmed Relay (factory default setting: NC)
Gas Detection Range: 0-100% LEL
Accuracy: ± 2% of the full-scale gas concentration
Response Time (for 100% LEL methane):
50% full scale < 1.9 seconds
90% full scale < 5.0 seconds
Ingress Protection: IP66
Operating Temperature: -76⁰ F to +185⁰ F (-60⁰ C to +85⁰ C)
Humidity Range: Up to 95% relative humidity, non-condensing (Withstands up to 100% relative humidity for short periods)
Conduit Connection: ¾” NPT
2 connections for Field Wiring
1 connection for HART/USB
Enclosure Material: Stainless Steel (Grade 316) or Aluminum
Dimensions: 8.01” x 5.30” x 5.12” (203.5mm x 134.50mm x 130mm)
Weight: 14.33lb (6.5 kg)
- Drilling and production platforms
- Shipping tankers, freighters, and other vessels
- Fuel loading facilities
- Refineries, bulk terminals, and tank farms
- LNG/LPG processing and storage facilities
- Compressor stations and pipeline facilities
- Petrochemical, paint, and fertilizer plants
- Power plants and gas turbine facilities
- Transportation facilities (airports and subways)
- Oil and gas fired boilers / furnaces • Environmental regulation monitoring