48
OLC(T)100
Technical manual
General Specifications
Supply voltage at the detector
terminals:
❧
OLC100: 340 mA (current supply).
❧
OLCT100 XP HT: 15.5 V to 32 V.
❧
OLCT100 XP LEL: 15.5 V to 32 V.
❧
OLCT100 XP IR: 13.5 V to 32 V.
❧
OLCT100 XP EC: 10 V to 32 V.
❧
OLCT100 XP SC: 15.5 V to 32 V.
Average consumption:
❧
OLC100: 340 mA.
❧
OLCT100 XP HT: 100 mA.
❧
OLCT100 XP LEL: 110 mA.
❧
OLCT100 XP IR: 60 mA.
❧
OLCT100 XP EC: 23.5 mA.
❧
OLCT100 XP SC: 100 mA.
Output current (signal):
❧
Current source encoded from 0 to 23 mA (non
isolated)
❧
Linear 4 to 20 mA current reserved for measurement
❧
0 mA: electronic fault or no power supply
❧
< 1 mA: fault.
❧
2 mA: Initialization mode
❧
Current greater than 23 mA: off-scale.
Type of cable
❧
Explosimeter: screened, 3 live wires
❧
HT Explosimeter: screened, 3 live wires
❧
Electrochemical detector: screened, 2 live wires
❧
Infra-red detector: screened, 3 live wires
❧
Semiconductor detector: screened, 3 live wires
Cable inlet:
M20 or ¾ NPT.
Maximum diameter of cable
entering the detector:
12 mm.
Electromagnetic compatibility:
Conforms to EN50270.
International Protection rating
IP66.
Explosive atmospheres:
Conforms to European Directive ATEX 94/9/CE (see
attached Declaration) and to IEC Ex schedule for fire-
proof detectors.
SIL 2 in accordance with EN50402/EN61508.
Metrological performance in accordance with EN 50054
and EN 50057 (harmonized standards applied: 61779-
1 :2000 and 61779-4 :2000).