LMI LIQUITRON DM7000 Series Operating and maintenance instructions

STEP 1: Unpack and Mount Controller
Remove the controller from the packaging and attach
the included antenna to the connector on the side
as seen in Figure #1.
Remove the black mounting bracket from the back
of the controller and mount it using the four enclosed
screws or appropriate fasteners.
Place the controller on the mounting bracket and
secure using the four enclosed screws .
The LIQUITRONTM DM7000 series controller can
be setup via the following 5 steps. Further details
are available in the installation and operations
manual and a series of how-to videos. These can
be found at http://support.lmipumps.com.
Quick Start Guide
Page 1
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Figure #1
Note: The unit may also be wired (Step 2) prior to mounting.
STEP 2: Wire the Controller
The extent of wiring needed will depend on your
application and if your unit comes with a power cord and
pigtails. Refer to the wiring diagram below (Fig# 2) which
is also available on the inside of the controller door.
WARNING: Be sure to connect all wiring without
power applied to the controller. Failure to do so
may result in incorrect measurements.
The terminal board has the following sections:
Line Power: This includes input power, pump relays,
blowdown valve, and alarm relay. Wire the line, neutral,
and ground wires for each relay being used. For the
blowdown relay, ensure you wire to the normally open
and/or normally closed terminal depending upon the
type of blowdown valve connected.
Sensors: Use this section to connect various sensors -
pH, conductivity, ORP, temperature.
Flow Meters: Connections are available for makeup
and blowdown flow meters. 24 volt DC power is
available for flow meter or other device that needs
power.
Flow Switch: For applications that require flow
detection, wire the flow switch here after removing the
supplied jumper. Otherwise, leave the jumper in place.
Low Tank Sensor: Four low tank sensor connections
are available.
4-20 mA Outputs: Two outputs are intended for data
logging on devices such as chart recorders. Sensors
can be configured to these outputs.
Pulse Pacing: Two outputs may be connected for
pulse control of pumps. Pumps must be powered from
terminal board section .
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Figure #2
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LIQUITRON™DM 7000 Series
Multi-Parameter Controller
Literature 56673 8/2018
©2018 Milton Roy, LLC

STEP 5: Assemble Flow Cell
The optional flow cell is a convenient way to manage the
installation of the various sensors for your system. The
system can be mounted in two different configurations
as shown below. Sensors thread into the sensor ports.
Hand tight plus a half turn using PTFE tape. The optional
flow switch can be attached to either the inlet or outlet.
Ensure that the arrow on the flow switch aligns with the
system flow. Also, if the system flow is vertical as seen in
the second configuration in Figure #5 below, ensure that
the flow enters from the bottom.
The flow cell consists of:
System Inlet/Outlet
Sensor Ports
Sensor Port Caps
Sample Valve
STEP 2: Wire the Controller (Continued)
All connections are routed through the cable glands
in the bottom of the controller. The cable glands are
designed per the configuration in Figure #3 below.
Actual routing may vary depending on your specific
needs. WARNING: Power must be removed from the
unit while wiring.
Input Power
Pump Relays
Blowdown Valve and Alarm Outputs
Flow Switch, Pulse Pacing, Flow Meters,
Conductivity Sensor
ORP, pH, Low Tank Sensors
STEP 3: Setup your Controller
Power up the controller and use the touchscreen
interface to configure the controller for your application.
Details of the setup steps can be found in the
installation and operations manual found at support.
lmipumps.com. During setup, you can activate your
LMI Connect Remote Monitoring Service:
STEP 4: Calibrate Sensors
Calibration of sensors can be done per the guided
setup process or after setup completion. The controller
supports one, two, or three point calibration as
appropriate. Ensure that the sensor is rinsed between
calibration points and adequate time is given for the
sensor to stablize after placing in the buffer solution.
Literature 56673 8/2018
©2018 Milton Roy, LLC
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Figure #5
Figure #3
Figure #4
Quick Start Guide
Page 2
LIQUITRON™DM 7000 Series
Multi-Parameter Controller
LMI is a registered trademark of Milton Roy, LLC
LMI Connect and Liquitron are trademarks of Milton Roy, LLC