Detector Positioning; Connection - Teledyne OLCT 10 N User Manual

OLCT 10 N
DIGITAL GAS DETECTOR
USER MANUAL

2.3 Detector positioning

The detectors shall preferably be positioned in an accessible place to facilitate inspection and
maintenance as well as ensure the safety of the operators. The detectors shall be protected against
shock hazards and must not be obstructed by anything that will prevent them from measuring the
ambient environment for which they are intended.
The detector shall be installed with the cable gland pointing downwards. If installed at an
angle of more than 45° from the vertical or in a horizontal position (ceiling-type installation),
the detector will not measure correctly and will need to be re-calibrated.

2.4 Connection

As a reminder, the OLCT 10N can only be connected to the TELEDYNE OLDHAM
SIMTRONICS MX 16 or MX32v2 or MX 43 controller.
RS485 transmission
The OLCT 10N has 2 cable glands that are used for the input cable and the output cable to the
next module.
The detectors must be connected using MPI-22A cable type, minimum core size is 0.22 mm²
(RS485 cable with 2 shielded twisted pairs, nominal impedance of 100 Ohm). This cable carries
the RS485 signal on one pair and the power supply for the modules on the other pair. The
+24VDC, 0V, A and B terminals are respectively connected to the +24VDC, 0V, A and B
terminals of the other modules in the line and then to the corresponding line connector of the MX
43 or MX 32v2 controller.
The cable shielding must be connected to a ground terminal.
4
Figure 2: OLCT 10N dimensions (in millimeters)
NPO10NGB
Revision J.1