ISC/Oldham OLC20 Series User Manual

13
I
I
I
I
.
.
D
D
e
e
s
s
c
c
r
r
i
i
p
p
t
t
i
i
o
o
n
n
o
o
f
f
t
t
h
h
e
e
O
O
L
L
C
C
T
T
4
4
0
0
/
/
O
O
L
L
C
C
T
T
4
4
0
0
D
D
f
f
a
a
m
m
i
i
l
l
y
y
1. General
The gas detectors in the OLCT 40 series are 4-20 mA TRANSMITTERS (3-wire or 2-wire)
which are intended for the measurement of combustible and toxic gases and oxygen.
The OLCT 40 series comprises two types of TRANSMITTERS:
Ø Version OLCT 40: housing/cell unit assembly
In this case, the transmitter is connected directly to the measurement data logger.
See Figure 04 at the beginning of this manual.
Ø Version OLC 40 D (D signifies remote cell unit)
In this case, the measurement data logger is connected to the main housing.
See Figure 06 at the beginning of this manual.
2. Main characteristics of the various versions
OLCT40 OLCT40D
EXPLO TOX/O2 EXPLO TOX/O2
Explosion-proof safety cell unit
X X X X
Intrinsic safety cell unit
X X
Outlet via packing gland
X X X X
3-wire cable / 4-20 mA output
X X
2-wire cable / 4-20 mA output
X X
Catalytic cell
X X
Electrochemical cell
X X
Interchangeable and precalibrated unit
X X X X
Wall mounting bracket of the cell unit
X X

ISC/Oldham OLC20 Series Specifications

General

Brand	ISC/Oldham
Model	OLC20 Series
Category	Security Sensors
Language	English