The OLC(T) 20 Series of gas detectors are designed for indoor or outdoor facility monitoring and other applications to accommodate your gas detection requirements at a reasonable price.
OLC(T) 20 Detector
The new generation of OLC 20 combustible sensors are unaffected by poisons. The units provide extremely quick response times and complete reliability. They can be fitted on a housing with a M25 or 3/4" NPT thread.
The stainless steel detector provides protection and resistance to corrosive agents. Classified IP 66, they are resistant to dust and water ingress. The precalibrated sensors of the OLCT 20 can be disconnected by turning the head of the unit. These “smart” sensors can be calibrated on a work bench, outside hazardous areas.
Intrinsically Safe (IS) and XP approved
Small in size
Resistant to corrosion
Pre-calibrated sensor unit
|
Detectors |
OLCT 20 |
OLCT 20 |
OLC 20 |
|
Type |
XP transmitter |
IS transmitter |
XP detector |
|
Gas detection principle |
XP detector |
Electrochemical |
Catalytic |
|
Detected gases |
Flammable, toxics and oxygen |
Toxics and oxygen |
Flammable |
|
Measuring range |
See chart inside |
See chart inside |
See chart inside |
|
Sensor housing |
Stainless steel type 316 L |
Stainless steel type 316 L |
Stainless steel type 316 L |
|
Precalibrated sensor |
yes |
yes |
no |
|
Power supply at the detector |
15 to 30 VDC (catalytic) 15 to 30 VDC (chemical) |
10 to 26 VDC |
Depending on the detector |
|
Maximum power consumption |
100 mA (catalytic) 25 mA (chemical) |
25 mA |
Depending on the detector |
|
Output signal |
4-20 mA |
4-20 mA |
Wheatstone bridge |
|
Load impedance |
250 Ω (catalytic) Depending on power supply (chemical) |
47 Ω max |
Not applicable |
|
Wiring |
3 reinforced wires (catalytic) 2 reinforced wires (chemical) |
2 reinforced wires |
3 reinforced wires |
|
Loop impedance with ISC monitor |
32 Ω (catalytic) (1 km with 1,5 mm2) 128 Ω (chemical) (4 km with 1,5 mm2) |
32 Ω (1 km with 1,5 mm2) |
32 Ω (catalytic) (1 km with 1,5 mm2) |
|
Wiring connection |
Delivered with a 6mm-diameter cable |
Delivered with a 6mm-diameter cable |
Delivered with a 6mm-diameter cable |
|
Fastening |
M25 thread to screw or 3/4’’ NPT |
M25 thread to screw or 3/4’’ NPT |
M25 thread to screw With a stirrup or 3/4’’ NPT |
|
Ingress protection |
IP 66 |
IP 66 |
IP 66 |
|
Certification |
EEx d IIC T6 II 2 GD INERIS 01 ATEX 0004X |
EEx ia IIC T4 II 1 GD INERIS 01 ATEX 0004X |
EEx d IIC T6 II 2 GD INERIS 01 ATEX 0004X |
|
CEM mark |
EN 50270 |
EN 50270 |
EN 50270 |
|
Weight |
800 gr |
800 gr |
800 gr |
|
Dimensions |
L 130 x D 60 |
L 130 x D 60 |
L 130 x D 60 |
|
Operating temperature (for electronic) |
-25°C to +60°C |
-25°C to +60°C |
-25°C to +70°C |
