Oldham OLCT 100 XP User Manual

18
OLC(T) 100
User manual
018
Type of detector
Type of sensor
Maximum length (km) for
cable of cross-section as
indicated
Maximum
load
resistance for
4-20 Ma
0,5 mm²
0,9 mm²
1,5 mm²
Upstream line voltage
(Vcc)
24
24
24
OLCT 100 XP
Catalytic or
semiconductor
0,8
1,4
2,4
250
OLCT 100 XP (1)
Electrochemical
<4
<4
<4
OLCT 100 XPIR
Infra-red
1,4
2,6
4,4
250
OLCT 100 IS (2)
Electrochemical
1,8
3,3
<4
OLCT 100 HT
Catalytic, high
temperature
0,8
1,4
2,4
250
(1) for resistance calculations, the assumed load is 120  for 4-20 Ma.
(2) for resistance calculations, the assumed load is 120  for 4-20 Ma, and a 300  Zener
blocking diode.
Warning: all wiring should meet the installation standards and should be described in a system
document for SI installations
The cable must have a braided screen to reduce the influence of electrical and
radio-frequency interference. A cable such as AFNOR M 87-202 01-IT-09-EG-FA
(Nexans) may be used. It shall be selected according to the type of detector and
in accordance with the table shown hereinabove. Below are further examples of
suitable cables:
Non ATEX zone: CNOMO FRN05 VC4V5-F
ATEX zone: GEUELYON (U 1000RHC1)
ATEX zone: GVCSTV RH (U 1000)
ATEX zone: xx-xx-09/15- EG-SF or EG-FA or EG-PF (U 300 compatible with
M87202)
The maximum permissible length will depend on the cross -section of the cable
conductors (see table) and on the minimum supply voltage.
Cable connection
Switch off line power supply
On the controller:
1. Inhibit any installation alarms to avoid unexpected triggering during operation.
2. In accordance with the manufacturer’s instructions, switch off the power to the
module in order to be connected to the detector.

Oldham OLCT 100 XP Specifications

General

Brand	Oldham
Model	OLCT 100 XP
Category	Gas Detectors
Language	English