Installation - ProMinent CTE 1-mA Instrucciones De Servicio

Installation

7
General safety guidelines
The CTE 1-mA sensor has a passive 4-20 mA two-wire interface. The power
supply is provided externally or by the controller. When the sensor is
connected to the DULCOMETER
requirements are met automatically.
Additional safety guidelines, when using an alternative controller:
If using an alternative controller please note:
Power source: 16-24 V DC, min. 35 mA with 16 V DC
Max. load:
Electrical
installation
34
Installation
IMPORTANT
Install in such as way as to ensure a totally reliable,
uninterrupted power supply to the controller. Too low a
voltage supply can cause measuring failures, which may
result in dangerous overdosing within a control system.
IMPORTANT
• If you intend to connect the sensor to devices other than
ProMinent's, please contact our local subsidiary
• The power supply for the sensor must never fall below
16 V DC, even for a short period. The power supply must
be able to bear a minimum load of 35 mA at 16 V DC. Too
low voltage supply can cause measuring failures, which
may result in dangerous overdosing within a control
system.
• The sensor is not electrically isolated. In order to avoid
interfering currents ensure potential isolation of sensor,
power supply and other devices connected to the
measuring/evaluation instrument.
1 W
IMPORTANT
For electrical connection of the sensor to the controller, only
use wires with a diameter of 4 mm (see Order information,
Chapter 15)
Turn the top part of the sensor a quarter of a turn anticlockwise and
remove.
Remove the outer isolation of the cable for about 5 cm from the end so
that the two wires appear.
®
D1C controller the interface's safety
®
ProMinent