Configuring and Setting the Monitor
You must configure the monitor to tell it what sensors are connected to it. EC and
temperature sensors come calibrated from the factory However, the pH transmitters
must be calibrated to the electrodes to display accurate readings. Refer to the
Ratio:Guard
®
Advanced pH & EC Monitor Set-Up instructions for complete information
on configuration and pH electrode calibration.
Repair
Before opening the enclosure and doing anything inside shut off ac power to the
unit.
The fuse is located on the DIN rail next to the power supply, inside the plastic fuse holder.
Replace with the same size and type.
Fuse Replacement
Other repairs are made by replacing complete circuit board assemblies. This should be done only by an
authorized repair person or under the direction of our technical staff.
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. If you need to return any parts for service or replacement, our shipping address is:
H.E. Anderson Company
2025 Anderson Drive
Muskogee, Oklahoma 74403
USA
Please enclose a note detailing the problems and the type of service you need. Include the name of a
contact person, phone number, and the billing name and address. Any return for warranty, or credit, must
have an RMA number. Contact H.E. Anderson for this number before returning.
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