Lovibond Tintometer PCM, Руководство пользователя, Страница: 4 / 24

4 PCM_V1 07.2017
GB
Introduction
1.0 Introduction
The Power & Communications Module (PCM) contains the high
voltage power supply, digital and analog communicated interfaces for
Tintometer Process Sensors . It provides 24VDC, as well as
connections for two (2) 0-20 / 4-20mA analog current outputs, three
(3) digital relay outputs, and one (1) optional RS-485 MODBUS
network .
A qualified electrician trained in the installation of electrical
equipment should read and understand this manual prior to working
with this component as potential lethal hazards are present .
The manufacture does not take responsibility for any issues caused by
use of the unit not in accordance with the instructions laid out in this
manual .
Preface
Do not exceed temperatures or time spans in any case .
All warning labels must NOT be removed and should be replaced if
they become damaged or faded .
Important Information
The PCM can be mounted to a panel or to a wall .
Notes on power connection
The PCM should be permanently connected to mains power .
See local building codes for permanently connecting equipment .
Safety instructions for operation
Never open the high voltage housing while the PCM is connected to
mains power . There is a danger of electric shock and other hazards .
The high voltage area may only be opened and serviced by qualified
professionals .
Ensure proper grounding of the metal bonding plate near the bottom
of the enclosure . It must be connected to GND for proper operation .
Cleaning
Use a damp cloth with a non flammable, non corrosive detergent .