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- A triple head multi-function transmitter
- On-board display
- 3 built-in relays for fault, low and high alarms (alarms in relay are fully programmable)
- Two 4-20 mA inputs, built in relays, memory settings and requests by remote control
- 4-20 mA and RS 485 outputs, loop connection
- New Wireless Version available suitable for explosive areas
- Flameproof or intrinsic-safety sensors
- Low power requirements;
- Universally accepted frequency of 2.4 GHz/900MHz; and
- Flexible input/output options, including analog, TOR and Modbus RS485
Technical Specifications
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Type:
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Transmitter-sensor
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Detected gases:
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Explosive, toxic and oxygen
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Detection principles:
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Catalytic, Electrochemical, IR, Semiconductor
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Sensor block:
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Pre-calibrated
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Housing Sensor:
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Stainless steel 316L
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Enclosure:
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Aluminum
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Visualization:
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4-digit LCD display for measurement and one alphanumeric line for texts
Pictograms - backlighting
4 indicator lamps :
- one green : "Operation OK"
- one yellow : "Fault"
- 2 red : "Alarm 1" and "Alarm 2"
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Power supply to sensor terminals:
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Two independent inputs:
16 to 28 VDC ( catalytic / IR / SM cells)
12 to 28 VDC (electrochemical cell)
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Maximum power
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with digital link:
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0.2 W (electrochemical cell) -1.3W(catalytic/SM) -4.5W(IR)
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with I output at 25 mA :
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0.9 W (electrochemical cell) -2W(catalytic/SM) -5.2W(IR)
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with I output at 25 mA and relays activated:
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2.4 W (electrochemical cell) -3.5W(catalytic/SM) -6.7W(IR)
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Inputs:
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Two analog inputs 4-20 mA (load resistance 120 Ω, can be used as binary)
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Signal Outputs
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Logic (relay contacts):
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Relay
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Analog:
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Standardized 4-20 mA output
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Digital:
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Two independent opto-isolated RS 485 ports
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Signal faults:
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I < 0.5 mA
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Alarms:
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2 programmable thresholds per channel
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Relays
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Type:
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SPDT
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Number:
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3
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Contact:
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RCT changer-over
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Breaking capacity:
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2A / 250 VAC / 30 VDC
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Miscellaneous
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Wiring / connection:
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Basic version, 6 inputs : 4 M20 and 2 M25
On request: 3 additional,2 M20 and 1 M25
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Load resistance on the 4-20 mA:
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500 Ω
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Loop resistance:
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Under central unit 21 VDC: 128 ohms ( electrochemical cell ) - 32Ω(catalytic/SM)-16Ω(IR)
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Protection number:
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IP 66
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Operating temperatures:
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-25°C to +55°C
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Weight:
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OLCT 80 : 3,5 kg
OLCT80 version IR : 5,3 kg
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Certification Atex :
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OLCT 80 d
II 2GD
EEx d IIC T5( T100°C) or T6 (T85°C)
INERIS 03ATEX0240X
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OLCT 80 id (with intrinsic safety sensor block)
II 2GD
EEx d [ia] ia IIC T4 (T135 °C)
INERIS 03ATEX0240X |
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Electromagnetic compatibility:
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Complies with EN 50270
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Sensor Technical Specifications
| Gases |
Type of sensor |
Range (ppm) |
Operating temperature* |
Relative humidity uncondensed |
Pressure |
Accuracy at full scale (at atmospheric pressure) |
Life span (in month) |
T (50) |
IP |
IS |
AD |
| O2 |
electrochemical |
30,00% |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
from 5 to 30% = 0,4%vol |
28 |
6 |
66 |
YES |
YES |
| CO |
electrochemical |
100, 300 and 1000 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 2 ppm (range 0-100) |
48 |
10 |
66 |
YES |
YES |
| H2S |
electrochemical |
30, 100 and 1000 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 1,5 ppm (between 0-30 ppm) |
48 |
15 |
66 |
YES |
YES |
| NO |
electrochemical |
100, 300 and 1000 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 2 ppm (range 0-100) |
36 |
15 |
66 |
YES |
YES |
| NO2 |
electrochemical |
10 and 30,0 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,8 ppm |
26 |
20 |
66 |
YES |
NO |
| SO2 |
electrochemical |
10,0 30,0 and 100 |
-10°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,7 ppm range 0-10 |
36 |
15 |
66 |
YES |
NO |
| Cl2 |
electrochemical |
10,0 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,5 ppm |
26 |
50 |
66 |
YES |
NO |
| H2 |
electrochemical |
2000 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/-5 ppm range 0-100 |
26 |
50 |
66 |
YES |
YES |
| HCl |
electrochemical |
30,0 and 100 |
-20°C to +40°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,5 ppm range 0-10 |
26 |
50 |
66 |
YES |
NO |
| HCN |
electrochemical |
10,0 and 30,0 |
-20°C to +40°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,3 ppm range 0-10 |
26 |
40 |
66 |
YES |
NO |
| NH3 |
electrochemical |
100 |
-20°C to +40°C |
10% to 95% RH |
Atm +/- 10%
Atm +/- 10% |
+/-5 ppm
+/- 10 ppm range 0-1000 |
26
26 |
50
50 |
66
66 |
YES
YES |
YES
YES |
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1000 |
-20°C to +40°C |
10% to 95% RH |
Atm +/- 10% |
+/-0,05 ppm |
20 |
50 |
66 |
YES |
NO |
| O3 |
electrochemical |
1,00 |
-10°C to +40°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,05 ppm |
20 |
40 |
66 |
YES |
NO |
| PH3 |
electrochemical |
1,00 |
-20°C to +40°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,3 ppm |
26 |
50 |
66 |
YES |
NO |
| ClO2 |
electrochemical |
3,00 |
-20°C to +50°C |
10% to 95% RH |
Atm +/- 10% |
+/- 1 ppm |
20 |
40 |
66 |
YES |
NO |
| SiH4 |
electrochemical |
50 |
-20°C to +40°C |
10% to 95% RH |
Atm +/- 10% |
+/- 0,05 ppm |
26 |
40 |
66 |
YES |
NO |
| AsH3 |
electrochemical |
1,00 |
-10°C to +40°C |
20% to 95% RH |
Atm +/- 10% |
1% vol |
60 |
5 |
66 |
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| CH4 |
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