Beskrivelse
Produsents beskrivelse av Monicon CGS500:
The Monicon CGS500 combustible gas sensor has been designed to measure concentrations of combustible gases in the range 0-100% LEL. The CGS500 is fitted in an EExe certified junction box.
Each sensor contains two thermocatalytic beads. Combustible gases will oxidise on the surface of the active bead while the reference bead compensates for changes in temperature, pressure etc. Each bead consists of a coil of fine platinum wire surrounded by an alumina based substrate containing a catalyst.
An electric current is passed through the bead which raises the temperature to a level where oxidation will occur. The catalyst reduces the temperature at which oxidation occurs, thus prolonging the life of the bead and resulting in much lower power consumption.
The CGS500 sensor is available with alternative elements. The CGS500-NP30 is general purpose robust sensor. The CGS500-300P has enhanced poison resistance and the CGS500-VQ41 is optimised for monitoring concentrations of ammonia and kerosene.
Features:
- Temperature compensated
- Low drift
- Improved poison resistance
- Long life
- Fast response time
- Rugged stainless steel sensor
- Detects combustible gases &solvents
- Many accessories available
- Certified ATEX II 2 G EExd IIC T6
Operating voltage 2.05Vdc ± 0.05Vdc
Operating current 300mA (for standard and poison resistant versions)
Detection range 0-100% LEL
T90 response time Typically < 15 seconds
Stabilisation time 1 minute
Preconditioning time 1 hour
Operating temperature range -20°C to +40°C
Mounting thread M25 X 1.5mm
Accessory thread M42 X 1.5mm
Weight Sensor: 400g Standard junction box: 300g
Size of junction box (excluding sensor) W: 75mm, D: 58mm, H: 80mm
Electromagnetic Conformance (EMC) Complies with EN50081 and EN50082
ATEX certification II 2 G EExd IIC T6 (Certificate No.BAS00ATEX2246X)
