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Summary of Contents for LMI LIQUITRON 7000 Series
- Page 1 LIQUITRON™ Series 7000 Multi-Dimensional Controller Installation & Operation Manual Manual No.: 56424 Revision Rev. Date: 10/2018 Instruction Manual...
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Page 2: Table Of Contents
3.2 Controller Mounting ..................9 3.3 LMI Connect Antenna ................... 10 3.4 Inline Probe Installation ................. 10 3.5 LMI Mounting Panel (Optional) ..............12 3.6 Batch Tank / Submersed Probe Installation ..........12 3.7 Cooling Tower Installation ................13 3.8 Boiler Installation ................... 14 3.9 pH/ORP Inline Installation ................ - Page 3 Table of Figures Figure 1: Controller Dimensions ..................9 Figure 2: Controller Mounting Diagram ................. 10 Figure 3: LMI Flow Cell ....................11 Figure 4: LMI Mounting Panel ..................12 Figure 5: Submersed Probe Installation ................ 13 Figure 6: Cooling Tower Installation ................14 Figure 7: Continuous Sampling Boiler Installation ............
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Page 4: Precautions
Figure 30: Application Summary Screen ............... 35 Figure 31: Controller Assembly ..................43 1.0 Precautions ® The following precautions should be taken when working with LMI Liquitron™ Controllers. Please read this section carefully prior to installation. Electrical Connections WARNING: To reduce the risk of electrical shock, the controller must be plugged into a properly grounded grounding-type receptacle with ratings conforming to the data on the product label. -
Page 5: Introduction
Section 2.0 - Introduction 2.0 Introduction The LIQUITRON™ 7000 Series Controller is designed for use in a variety of water treatment applications requiring precise control of total dissolved solids and chemical feed. Among its many uses, the 7000 Series Controller will control conductivity and chemical feed in cooling towers, boilers, waste water, and other closed loop systems. - Page 6 Section 2.0 - Introduction Table 2: Inputs Type Quantity Specification Cell Constant: 1.0 or 1.5 Conductivity Range: 0 – 20,000 µS or 0 – 12,820 ppm Resolution: 10 uS 10 KOhm Thermistor Temperature Range: 0 – 100 Degrees C Resolution: 1 Degree C Range: 0 –...
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Page 7: Unpacking Check List
Section 2.0 - Introduction Mass Storage for logs, profiles, and software USB 2.0 upgrades Power: 500mA Embedded Cellular Verizon or AT&T/T-Mobile LTE Modem (1) NOTE: All powered relays fused together with 6.3A Slow Blow Fuse. 2.2 Unpacking Check List Your carton contains many or all the following items. Please notify the carrier immediately if there are any signs of damage to the parts. -
Page 8: Installation
Sensorex PHAMP-1 may be used with an LMI 56955 BNC-BNC 20-foot extender cable. If possible, mount the controller on an exterior wall for improved cellular reception for LMI Connect. For best coverage, mount the controller near a corner in the building. -
Page 9: Controller Mounting
Section 3.0 - Installation 3.2 Controller Mounting 1. Determine the desired position of the controller on the wall. Refer to Figure 1 for controller dimensions. Figure 1: Controller Dimensions 2. Attach the mounting bracket to sheet metal or wood using the included screws. Screws for other surfaces can be used with the 5.5 mm (7/32”) through holes as long the screw head is less than 4 mm (5/32”) in height. -
Page 10: Lmi Connect Antenna
3.3 LMI Connect Antenna Attach the included cellular antenna (56437) to the SMA Female connector on the left side of the unit. Tilt the antenna so that it is pointing upwards. LMI Connect can be activated at connect.lmipumps.com using the product serial number and LMI Connect ID that can be found in System Settings –... -
Page 11: Figure 3: Lmi Flow Cell
Refer to Figure 3 for orientation. Figure 3: LMI Flow Cell The Flow Cell can also be mounted in a portrait orientation by switching the location of the sample valve and the ¼”... -
Page 12: Lmi Mounting Panel (Optional)
Figure 4: LMI Mounting Panel 3.6 Batch Tank / Submersed Probe Installation The Liquitron 7000 Series Controller can be used for batch control in pH-Only and ORP- Only modes to control the effluent valve based on setpoint and time. This is commonly used for wastewater treatment to ensure proper pH or ORP and for processing applications. -
Page 13: Cooling Tower Installation
Figure 5: Submersed Probe Installation 3.7 Cooling Tower Installation The Liquitron 7000 Series Controller should be installed based upon the recommended system diagram in Figure 6. A bypass loop for open recirculating water systems is the best method for monitoring and controlling conductivity. The probes must receive an active representative sample of system water. -
Page 14: Boiler Installation
Figure 6: Cooling Tower Installation 3.8 Boiler Installation The Liquitron 7000 Series Controller when used for boiler conductivity control can be set up in two different operating modes: 1. Continuous Sampling 2. -
Page 15: Figure 7: Continuous Sampling Boiler Installation
Section 3.0 - Installation Figure 7: Continuous Sampling Boiler Installation In timed sampling mode, the controller allows only periodic samples of boiler water to pass by the probe. If the sample is high in conductivity, the sampling period extends until the conductivity falls below preset levels. -
Page 16: Ph/Orp Inline Installation
Figure 8: Timed Sample Boiler Installation 3.9 pH/ORP Inline Installation The Liquitron 7000 Series Controller can be used for monitoring and controlling pH and ORP in an inline installation as shown in Figure 9. The injection point for the chemical should be a sufficient distance upstream from the Flow Cell with probes to allow for chemicals to be adequately mixed. -
Page 17: Wiring
Section 3.0 - Installation Figure 9: pH/ORP Inline Installation 3.10 Wiring To access the wiring connections inside of the controller: WARNING: Disconnect power prior to removing the black lid to access the wiring terminals. 1. Remove the four (4) #1 Phillips screws on the corners of the controller until the springs raise the screws. -
Page 18: Power Input
Section 3.0 - Installation Figure 10: Complete Wiring Terminal Diagram 3.10.1 Power Input When using a prewired unit, a 6-foot power cord with the appropriate connector is included and wired to terminal block J32. When using a hardwired installation, insert the power supply cable through the single cable gland and attach the wires to J32 as follows: Figure 11: Power Input Wiring Diagram To reduce the risk of electrical shock, the controller must be plugged into a... -
Page 19: On/Off Pump Output
Section 3.0 - Installation 3.10.2 On/Off Pump Output The controller switches the input supply voltage to the pump output when chemical injection is required. When using a prewired unit, four (4) 6-inch power output pigtails with the appropriate connectors are included and wired to terminal blocks J24, J22, and J19. The pump power cords can be attached directly to the output pigtail. -
Page 20: External Alarm Relay Power Output
Section 3.0 - Installation Pulse Output Signal (Blue Wire) Pulse Output Ground Acid or (White Wire) Base or Reducer Pump Oxidizer Pump Pulse Output Signal (Blue Wire) Pulse Output Ground (White Wire) AC Line AC Line (Black/Brown) (Black/Brown) AC Neutral AC Neutral (White/Blue) (White/Blue) -
Page 21: Blowdown Valve Power Output
Section 3.0 - Installation 3.10.5 Blowdown Valve Power Output The controller provides a Single Pole Double Throw Relay that switches the input supply voltage to the Blowdown Valve when required. For a motorized ball valve, both normally open and normally closed connections can be used as shown in Figure 15. Insert the power cable for the valve through the cable gland and attach the wires as follows: AC Line Normally Open (Black/White) -
Page 22: Probe Input
BNC connector on the ORP probe (56570), insert the tinned leads through the cable gland, and attach to the appropriate terminal. The controller can accept one conductivity probe input. The LMI conductivity probe (56567) has a cell constant of K = 1.0. The controller can also accept a conductivity probe with a cell constant of K = 1.5. -
Page 23: Figure 18: Flow Switch Wiring Diagram
*Note: Polarity on Flow Switch signal/return does not matter Figure 18: Flow Switch Wiring Diagram When installing the LMI Flow Switch (56568) into the tee assembly, be sure to glue the straight thread adapter into the branch of the tee. This adapter is for the flow switch. The NPT fitting can be threaded into the LMI Flow Cell (56566) and glued into a through connection on the tee. -
Page 24: Low Tank Input
Section 3.0 - Installation Controller Flow Switch, Low Tank, or Flow Meter 1. Switch Closure Switch Switch closing triggers the pump Ground/Return Flow Switch, Low Tank, or Flow Meter 2. NPN Transistor Base goes high to trigger the pump Ground/Return Flow Switch, Low Tank, or Flow Meter 3. -
Page 25: Flow Meter Input
Section 3.0 - Installation Pump eramic Figure 20: Low Tank Input Wiring Diagram Refer to Figure 19 for other methods to trigger the Low Tank Inputs 3.10.9 Flow Meter Input The controller includes separate Flow Meter Inputs for Make-up and Blowdown water. For use with a contacting or paddle wheel flow meter, the controller supplies 24V on the Flow Meter connection and will consume 4mA when closed. -
Page 26: Analog 4-20 Ma Output
Section 3.0 - Installation 3.10.10 Analog 4-20 mA Output The controller includes two (2) Analog 4-20 mA Outputs that can be configured in Application Settings – Analog Outputs to indicate any available sensor value at a user- defined scale. This can be used for a chart recorder or PLC. Insert the 4-20 mA cables through the cable gland, and attach the wires as follows: Figure 22: Analog Output Wiring Diagram Instruction Manual... -
Page 27: Operation
The top right portion of the dashboard provides shortcuts to install a software update (only shown if a new update has been downloaded with LMI Connect), Dashboard, Lock Screen, Alarm Log, and Settings. -
Page 28: Manual Mode
Section 4.0 - Operation 4.2 Manual Mode In Manual Mode, all control algorithms are disabled. This mode can be used for: • system testing • priming pumps • manually dosing chemical • manually bleeding the system Tap the “Back to Dashboard”, “Return to Automatic Mode”, or Home icon to enable automatic control algorithms. -
Page 29: Alarm Log
Section 4.0 - Operation Figure 25: Sensor Details Select the sensor and the time span for the graph. Use the left and right arrows to shift to the previous hour, day, or week. A timeline of control is shown on a horizontal bar beneath the sensor graph. This matches the timescale of the sensor graph and allows for visual correlation of control actions and system response. -
Page 30: Software Configuration
Section 4.0 - Operation Figure 26: Alarm Log The alarms are displayed in reverse chronological order with the most recent alarms at the top of the list. Active alarms are shown in red font. A shortcut to disable the alarm relay displays if the external alarm relay is activated. 4.5 Software Configuration The LIQUITRON™... -
Page 31: Conductivity Measurement
Section 4.0 - Operation Figure 27: Setup Type For a new setup, select the application used for this controller. The various applications simplify the controller setup operation by removing unused features. Figure 28: Application Selection The following list indicate the functionality of each application. If there is doubt, the “Custom Configured”... -
Page 32: Inhibitor Feed
Section 4.0 - Operation minus differential. Ensure the differential is large enough to prevent rapid cycling of the valve. The conductivity units for ppm or uS/cm can be selected on the Conductivity Setpoint screen. By default, the controller is configured for a Conductivity Cell Constant of 1.0. If a 1.5 cell constant probe is used, access the Conductivity Cell Constant setting from the Application Settings Menu. -
Page 33: Figure 29: Biocide Schedule Summary
Section 4.0 - Operation Days of Week Select the days of the week for the event to run. Start Time Select the time of day to start the event. Pump Run Select the duration to run the biocide pump. Time Once the event is created, a schedule summary will display the days in which the event will occur. -
Page 34: Biocide Lockout
Section 4.0 - Operation 4.5.4 Biocide Lockout Since it may be required to prevent blowdown for a period after a biocide has been added to the system, the controller allows for a lockout time to be configured for each biocide pump. -
Page 35: Application Summary Screen
Section 4.0 - Operation Settling Time Once the setpoint has been continuously maintained for the Settling Time, the (Batch Mode Only) Solenoid Valve (Blowdown Relay) opens. Valve Time The valve remains open until the Valve Time is reached, the sensor becomes out (Batch Mode Only) of range, or the batch tank is low. -
Page 36: Lmi Connect
The LMI Connect Web Portal at connect.lmipumps.com provides access to your fleet dashboard where you can quickly see the health of all of your LMI Connect products. From the fleet dashboard, select an individual unit to view details, enable periodic report generation, and remotely control. -
Page 37: Application Settings
If the LMI Connect Subscription is Active, display subscription status and expiration, cellular reception level, and serial number. Enable/Disable Remote Control. If Remote Control has not been enabled from the local settings, LMI Connect does not have the ability to control the unit. Language... -
Page 38: Advanced Settings
Set the brightness of the display backlight. The default is 80%. 4.6.4 Advanced Settings Update Firmware Update the firmware on the controller. If LMI Connect is active, the controller automatically downloads the update files. Access the Update Firmware Screen and select LMI Connect. To update with a USB drive, 1. -
Page 39: Probe Calibration
Section 4.0 - Operation 4.7 Probe Calibration The controller will have a factory calibration stored for each sensor. To calibrate the probe in the operating environment, access the calibration screen from the Application Settings Menu and select the appropriate sensor. Alternatively, press Calibrate Sensor on the Sensor Details page to calibrate the sensor that is currently shown in the sensor plot. -
Page 40: Orp Calibration
Section 4.0 - Operation 4.7.2 ORP Calibration The ORP sensor can be calibrated with a one-point or two-point calibration. To perform a wet calibration: 1. Remove the probe from the flow cell. 2. Rinse the probe in distilled water and place in a calibration buffer. 3. -
Page 41: Spare Parts Replacement And Routine Maintenance
Section 5.0 - Spare Parts Replacement and Routine Maintenance Table 6: Standard Conductivity of Buffer Solution Standard Conductivity of 0.01 M KCl Temperature ºC Expected Conductivity µS/cm 1020 1147 1173 1199 1225 1251 1278 1305 1332 1359 1386 1413 To calibrate without removing the probe from the system: 1. -
Page 42: Orp Probe Maintenance
5.4 Controller Assembly Parts List For the latest and most accurate information on your controller, please refer to the Data ® Sheets available in the LMI Online Library at: http://support.lmipumps.com. Use “Product” drop down to select “DM Series”. Instruction Manual... -
Page 43: Figure 31: Controller Assembly
Section 5.0 - Spare Parts Replacement and Routine Maintenance 56574 56437 55577 55578 Figure 31: Controller Assembly Table 7: Accessory and Spare Parts List LMI PN Type Description Notes Includes sample valve, 3/4” NPT 56566 Accessory 3 Slot Flow Cell, Sample Valve... - Page 44 Power Supply, Display Bracket, 4 screws Includes Lid, cushion gasket, 4 captive 55578 Spare Part Lid & Clear Cover screws, 4 springs, clear cover, and LMI, Liquitron, Product, and QR Labels Includes metal wall mount bracket, 4 56574 Spare Part Replacement, Wall Mount ASY...
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Page 45: Troubleshooting
Try using a shorter cable or add a preamp. Sensor Cable Too Long The battery powered Sensorex PHAMP- 1 may be used with an LMI 56955 BNC- BNC 20-foot extender cable. Disconnect power and open the controller lid. - Page 46 Firmware Update Files Not Detected “rbins.tgz”, main board update file must Failure end in “.bin” Tap the LMI Connect / USB Toggle Switch to ensure USB is selected The filename must be formatted as three sections separated by underscores as follows:...
- Page 47 Ensure the antenna is firmly attached to Antenna Disconnected the outside SMA connector and pointing upwards. Purchase cellular amplifier or use an LMI Connect Low Signal Environment extender cable with an SMA Male Connection Issue connector to mount an external antenna Disconnect power and open the controller lid.
- Page 48 LMI is a registered trademark of Milton Roy, LLC. EXCEL is a trademark of Milton Roy, LLC Fluorofilm is a trademark of Milton Roy, LLC Instruction Manual...
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