Lovibond Tintometer PCM User manual

www.lovibond.com
Power & Communications Module
Junction Box Manual
Lovibond®Water Testing
Tintometer®Group

Contents
• 1.0 Introduction....................................................4
• 2.0 Installation.....................................................6
Unpacking .........................................................6
Mounting ..........................................................6
High Voltage Installation ...............................................8
Low Voltage Installation ..............................................12
• 3.0 Operation ................................................................ 17
Power Indicator.....................................................17
24VDC Power Switch ................................................17
Analog Outputs ....................................................17
Relay Outputs ......................................................17
USB..............................................................17
Optional RS-485 MODBUS ............................................17
• 4.0 Maintenance ............................................................. 18
Fuse Replacement ...................................................18
Cleaning ..........................................................19
• 5.0 Replacement Parts........................................................ 20
• 6.0 Specifications............................................................. 20
• 7.0 Certification .............................................................. 21
FCC Class A Notice ..................................................21
DOC Class A Notice - Avis DOC, Classe A .................................21
• 8.0 Troubleshooting .......................................................... 22
To Preserve, Protect and Improve the Quality of the Environment
Disposal of Electrical Equipment in the European Union
Because of the European Directive 2002/96/EC your electrical instrument must not be disposed of with normal
household waste!
Tintometer GmbH will dispose of your electrical instrument in a professional and environmentally responsible manner.
This service, excluding the cost of transportation is free of charge. This service only applies to electrical instruments
purchased after 13th August 2005. Send your electrical Tintometer instruments for disposal freight prepaid to your
supplier

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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.

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Introduction
ATTENTION! - Indicates that important information or specific instructions need to be strictly followed;
(Information or instructions that can be found in the manual).
For professional users in the European Union:
If you wish to discard electrical and electronic equipment (EEE), please contact your dealer or supplier for
further information.
For disposal in countries outside of the European Union:
This symbol is only valid in the European Union (EU). If you wish to discard this product please contact
your local authorities or dealer and ask for the correct method of disposal.
DANGER! - A risk of severe injury or death from ELECTRICAL shock.
DANGER! - A risk of CHEMICAL injury.
WARNING! - A risk of severe burn; HOT SURFACE.
WARNING! - A risk of severe injury; PROTECTIVE EYE WEAR required.
ATTENTION! - radio wave emissions.
Guide to Symbols
Labels attached to the instrument should be strictly observed to avoid personal injury or
damage to the instrument. Refer to this document 'Guide to Symbols' for information
regarding the nature of the danger or risk before taking any action where such label is
present.
Read all instructions before using the instrument.
DANGER
A hazard exists that will result in death or severe injury if not avoided.
WARNING
A hazard exists that may result in death or severe injury if not avoided.
CAUTION
A hazard exists that may result in minor or moderate injury.
NOTICE
Important information or specific instructions need to be strictly followed..

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Installation
2.0 Installation
Unpacking
Carefully inspect all items to ensure that every part on the list below is
present and no visible damage has occurred during transportation.
Store the packing material to return the unit for repair or other kinds
of transport.
The table below shows the parts included in the packing
Part List
Mounting
1. Remove the front cover from the PCM
2. Align the PCM on the wall or panel, and mark and drill 4
mounting holes
3. Install (4) M4 x 20 or similar mounting screws
Part Description Quantity
1 PCM 1
2 Instruction Manual 1

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Figure 1: Mounting screw locations
GB
Installation
Figure 2: Mounting and product dimensions
122mm
4.80in
152mm
5.98in
170mm
6.69in
140mm
5.51in
96mm
3.78in
Figure 1:
Mounting screw locations

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DANGER
DISCONNECT POWER BEFORE SERVICING! Only a qualified installation technician
should connect AC power to the PCM
1. Remove the red thumb screw, and connectors at position J3 and J9
2. Remove the low voltage circuit board and high voltage barrier
GB
Installation
High Voltage Installation
NOTICE
A local disconnect mounted in a suitable and easily reached location must be included
in the installation of this equipment. The local disconnect must be marked as the
disconnecting device for this equipment.
NOTICE
This unit was tested with metallic conduit as per UL 61010-1 with a bending moment of
34Nm (300 lb-in) at a horizontal distance of 300mm (12"). Do not exceed this bending
moment

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Figure 3: Red thumb screw, J3 and J9 locations
Figure 4: Remove high voltage barrier
GB
Installation

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3. Remove the appropriate hole plugs from the bonding plate. The two
near the back are intended for high voltage use.
4. Connect AC power to the connector labeled J1 (see Figure 5 for
power connector location). AC power and protective earth wires
must be 12 to 18 AWG. A local disconnect switch or circuit breaker
which meets local electrical code is also required on the AC power
input, and must be located near the PCM.
5. Connect Relay outputs to connectors labeled J2, J3, and J4. Note that
Normally Open (NO) and Normally Closed (NC) contacts are provided/
See Figure 6 for wiring information.
6. Reinstall the low voltage board, connectors at position J3 and J9, and
the red thumb screw
GB
Installation
High Voltage Installation
DANGER
ELECTRIC SHOCK HAZARD. The barrier must stay in place except when a qualified
installation technician is connecting power or relay outputs
CAUTION
ENSURE PROPER GROUNDING. Connect metal bonding plate to protective earth
for proper operation
WARNING
Potential fire hazard. The relay contacts are not fused and rated at 5A max. External
devices should have a current limiting device to keep the current below 5A.

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Installation
Figure 6: Relay Connections
Figure 5: Power Connector
Terminal Function Color -
North America
Color
EU
1 L1 (Hot) Black Brown
2 N (Neutral) White Blue
3 GND (Protective Earth) Green Green/
Yellow
Terminal Label Function
1 NO Normally Open
2 COM Common
3 NC Normally Closed

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Installation
Low Voltage Installation
1. Remove the appropriate hole plugs from the bonding plate. The two
near the front are intended for low voltage use.
2. Connect 0-20mA or 4-20mA devices to connectors labeled J5 and J6.
Terminal Label Function
1 - Analog -
2 + Analog +
3 S Shield
3. If using the RS-485 MODBUS version, connect the RS-485
network to connector J7.
Terminal Label Function
1 - RS-485 -
2 + RS-485 +
3 S Shield

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Installation
Figure 7: 4-20 mA connections
Figure 8: RS-485 connection

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Installation
4. The 12 conductor sensor wire located at position J2 is pre-wired from
the factory. If the cable is removed during installation, connect the
positions as follows.
Terminal Color Function
1 BLACK 24VDC GND
2 RED 24VDC+
3 WHITE RS232 TXD
4 GREEN RS232 RXD
5 YELLOW RS485A+
6 GRAY RS485B-
7 PINK 4-20 -
8 BLUE 4-20 +
9 ORANGE CANL
10 TAN CANH
11 BROWN FLOW
12 VIOLET PE
Low Voltage Installation

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Installation
Figure 9: 12 pin connection

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Operation
3.0 Operation
24VDC Power Switch
A 24VDC power switch is provided at location SW1.
This switches power on/off to the attached sensor, but does not
remove power from the high voltage board.
RS-485 MODBUS
The RS-485 MODBUS connection provides a digital
connection to the sensor. The terminating resistor jumper should be
connected on the furthest device on the RS-485 network from the
master.
RS-485 MODBUS Terminator
The small black shorting link shunt should be connected across the
pins on the furthest device on the RS-485 network from the master.
Only one device should have the terminator connected on the
network.
Analog Outputs
The two isolated 0-20 / 4-20mA outputs are controlled by the
sensor. See the sensor manual for assigning zero and full scale to
each analog output, and trimming the analog outputs.
Power Indicator
A green power indicator is provided at location LED1. This illuminates
anytime there is power present on the low voltage board.
USB Power Indicator
The USB power indicator illuminates when a USB host device is
connected to the PCM
USB Micro Connector
One Micro-USB connector is provided for connection to a Windows
computer. After the driver loads, a new COM port will be available on
the computer to communicate with the PCM.
Relay Outputs
Each of the three (3) relays are controlled by the sensor. See the
appropriate sensor manual for assigning low, high, power fail, or
other alarms to each relay.
1
2
3
4
5
6
7
8

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Figure 10: Feature locations - Low Voltage Board






GB
Operation
8
8
8
Figure 11: Feature locations - High Voltage Board

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Maintenance
4.0 Maintenance
Fuse Replacement
The unit is protected by two 1.6A, 250VAC fuses. Should the fuses
need changing, disconnect the unit from AC power and open the
cover with a suitable tool to access the fuses.
Figure 11: Fuse locations
DANGER
DISCONNECT POWER BEFORE SERVICING! Always remove AC power from the
PCM before performing maintenance on the device.

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Maintenance
Cleaning
No special maintenance is necessary apart from periodic cleaning of
the unit.
Disconnect the unit from AC power and use a dust-free cloth with a
non flammable, non aggressive detergent to clean the unit.

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Replacement Parts & Specifications
Item Description Part Number
Fuse, 1.6A, 250VAC 5X20MM, 218 SERIES 19806-206
Connector, 3 pin TERM BLOCK PLUG 3POS STR 5.08MM 19806-492
5.0 Replacement Parts
6.0 Specifications
Specification Details
Power supply 100-240V / 50-60Hz
Power 40W
Output 24VDC for one instrument
Analog Outputs (2) 0-20 / 4-20mA isolated outputs
10VDC loop voltage
Relay Outputs (3) 100-240V
5A resistive maximum
Size 6.7" x 5.5" x 3.7"
Weight 3.8 lbs.
Construction materials Thermoplastic enclosure
IP Rating IP66
Conduit holes 4, ½"
Operating Temperature 0 to 50C (32 to 122F)
Humidity 0-95%RH (Non-condensing)
Digital communication RS-485
MODBUS RTU/ASCII
Warranty 1 Year