H.E. Anderson Ratio:Guard Advanced Manual
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H.E. Anderson Ratio:Guard Advanced Manual

Ec & ph monitor
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Designed for stand alone monitoring or for automatic control of EC & pH when
used with the Anderson J+ Advanced Injector controller
The H.E. Anderson Company is dedicated to assisting our customers with installation and use of our
products. Our technical staff are available each weekday from 8:30am to 4:30pm central time. You may
call us toll free at 1-800-331-9620 from anywhere in the U.S.A.. and Canada. If no one is available, we
will promptly return your call.
Before you call, we suggest that you review this manual. You may find the answer to your question here.
But even if you do not, reviewing the manual will help us to help you.
There is some information you should have available when you call. You should know the software
version and serial number of your control unit. Also, you should note the number of pumpers of each type,
and their model numbers. We may not need all this information, but having it available at the start can
some times save a lot of time and trouble for you. You may record the information on the information page
below for convenient reference.
If you need an additional owners manual for any H.E. Anderson Company product, please visit our
website at
http://heanderson.com/manuals.php
Ratio:Guard
Advanced EC & pH Monitor
GETTING TECHNICAL ASSISTANCE
UNPACKING
Please open and inspect your
package upon receipt. Your
package was packed with great
care and all the necessary
packing materials to arrive to you
undamaged. If you do find an
item that is broken or damaged,
you must contact the delivering
carrier to report the claim.
ATTENTION!
Your pH electrodes must
be calibrated before use.
®
03/18/21

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Summary of Contents for H.E. Anderson Ratio:Guard Advanced

  • Page 1 Anderson J+ Advanced Injector controller GETTING TECHNICAL ASSISTANCE The H.E. Anderson Company is dedicated to assisting our customers with installation and use of our products. Our technical staff are available each weekday from 8:30am to 4:30pm central time. You may call us toll free at 1-800-331-9620 from anywhere in the U.S.A..
  • Page 2 Ratio:Guard Advanced - Information Summary ® MODEL NO. _____________ SERIAL NO. ____________ SOFTWARE VER.______________ This unit was ordered with the following sensors & accessories:  Anderson Digital EC Transmitter W/Cable  Mounting Tee for above  Anderson Digital Temperature Transmitter W/Cable ...

  • Page 3: Installation

    Installation When the monitor is supplied as part of a pre-assembled system the monitor will often be totally or at least partially wired and configured as received. If this unit is added to a new or existing system this manual will guide you through the installation and wiring process.

  • Page 4: Connecting The Sensors

    Sensor Bypass Loop Showing proper sensor positions IMPORTANT: Be certain both isolation valves are open during normal Valve provides restriction to operation. Otherwise main water line to force flow the unit will not through sensor manifold. Adjust for moderate operate properly. flow through the manifold.

  • Page 5: Terminal Connections

    ➔ For 4-20 ma current loop transmitters there are two possibilities: ● USING AN ACTIVE TRANSMITTER WITH ITS OWN INTERNAL DC POWER SOURCE OR USING A SEPARATE DC POWER SOURCE: • Connect the – side of the transmitter to terminal 2 of the terminal block. •...

  • Page 6: Fuse Replacement

    Factory Service Should you require service for your Ratio:Guard® Advanced monitor, the H.E. Anderson Co. offers several flexible factory service options. Call our number listed in the front of this manual for complete information.
  • Page 7 Ratio:Guard™ EP-2 Advanced pH & EC Monitor Set-Up You can use the ▼ and ▲ keys to navigate the top level menus in forward or reverse order. After a 10 seconds with no key pressed the display will return to the base display although that delay may be extended in some instances. Pressing the Cancel/Exit key will return to the base display immediately.
  • Page 8 PH Calibration Sequence The pH Calibration applies to Anderson pH electrodes or pH electrodes using the Anderson P/N 11552 pH Converter Module connected to a pH digital input. Electrodes assigned to an analog input (4-20ma) may or may not require calibration to this monitor.

  • Page 9: Sensor Input Configuration

    Sensor Input Configuration The Ratio:Guard monitor comes configured for one or two pH sensors and one EC sensor. Two options are offered for each input; Digital Pulse input (legacy Anderson) or 4-20ma Analog. It is fully compatible with any Anderson sensors you may already have. A digital pH input provides greater resolution and accuracy but requires our P/N 11627 Signal Converter.

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