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IPS Controllers M790 Owner's Manual

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M790 pH/ORP Controller
Owner's
Manual

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Summary of Contents for IPS Controllers M790

  • Page 1 M790 pH/ORP Controller Owner’s Manual...

  • Page 2: Table Of Contents

    Table of Contents I. Introduction page 2 A. Water Chemistry page 2 B. Safety page 3 C. System Components page 4 D. Specifications page 7 E. Controller Panel Descriptions page 8 F. Electrical Descriptions page 10 II. Installation page 11 A.

  • Page 3: Introduction

    M790 pH/ORP Controller Owner’s Manual I. Introduction A. Water Chemistry Water chemistry is a complex science that contains many variables. These variables not only affect the water environment itself, but they can have adverse effects on your equipment as well as your health.

  • Page 4: Safety

    M790 pH/ORP Controller Owner’s Manual IMPORTANT SAFETY INSTRUCTIONS READ AND FOLLOW ALL INSTRUCTIONS 2. Risk of electric shock: Connect the controller to a dedicated ground-fault circuit interrupter (GFCI) circuit breaker. 3. Disconnect power before servicing the controller. 4. Inspect all power cords frequently. Any damaged cords should be replaced immediately to reduce the risk of injury by shock.

  • Page 5: System Components

    2. Flow Cell with Switch a. An injection-molded flow cell with integrated flow-switch houses the pH and ORP sensors, and partners with the M790 controller to monitor the pH and ORP levels in the water.
  • Page 6 (flow light should turn off). 3. pH and ORP Sensors a. pH Sensor – standard (Use only IPS Controllers part # SXPH to maintain NSF Certification) b. ORP Platinum Sensor – standard (Use only IPS Controllers part # SXORP to maintain NSF Certification) c.
  • Page 7 M790 pH/ORP Controller Owner’s Manual...

  • Page 8: Specifications

    M790 pH/ORP Controller Owner’s Manual D. Specifications Enclosure: 7.5”L x 4.75”W x 2.75”D (Note: Mounting board dimensions are 16”L x 12”W x 0.25”D) Electrical Input/Output: 120 VAC, 50 - 60 Hz pH Set Level: 7.0 to 8.0 ORP Set Level: 400 mV to 900 mV Dose Timer: Off, Continuous, or Timed cycle High Alert: pH default of 8.0, ORP default of 900...

  • Page 9: Controller Panel Descriptions

    M790 pH/ORP Controller Owner’s Manual Controller Communication digital display pushbutton LEDs Figure 2: M790 Controller Components Connections E. Controller Panel Descriptions 1. Digital Displays and Function LEDs a. pH 1. Alert - red LED 2. Dose - green LED b. ORP 1.
  • Page 10 M790 pH/ORP Controller Owner’s Manual 2. Mode - pushbutton adjustments a. Auto - red LED b. pH standby - green LED c. ORP standby - yellow LED d. OFF mode - In standby, press and hold Mode button for 3 seconds to turn controller off.

  • Page 11: Electrical Descriptions

    M790 pH/ORP Controller Owner’s Manual F. Electrical Descriptions 1. Power a. 120 VAC, 50-60 Hz, 3-wire grounded NEMA 5 power cord. GFCI source required. 2. Dip Switches (1-4) a. 1: pH/ORP interlock (default: OFF) No ORP feed if pH is feeding (ON).

  • Page 12: Installation

    Note: The controller and flow cell are factory mounted to the ABS board for convenience. a. Securely mount ABS mounting board with M790 controller and flow cell on wall (vertical installation). b. If applicable, securely attach the peristaltic pump with the...
  • Page 13 Note: Carefully unpack the pH and ORP sensors and set aside in a clear area until ready to install into the flow cell. a. Verify that the M790 controller power is OFF. b. Carefully remove the plastic protective caps from the sensors and store in a separate location for future re-use.
  • Page 14 M790 pH/ORP Controller Owner’s Manual 4. Electrical Connections (Should be completed by a licensed Electrician) a. Verify that the M790 controller power is OFF. b. Connect the pH feeder connection to the appropriate peristaltic pump or other device. c. Connect the ORP feeder connection to the appropriate peristaltic pump or other device.

  • Page 15: Operation

    III. Operation A. Startup and Shutdown 1. Startup a. Plug M790 power cord into power outlet. For outdoor installations, ensure the use of a watertight outlet cover. b. Turn on the filter pump and verify the water flow through the flow cell by opening the sample port valve (center) and observing a steady stream of water.

  • Page 16: Modes And Adjustments

    The green Flow LED will be illuminated if water is flowing through the flow cell. B. Modes and Adjustments 1. Auto a. This is the normal operational mode of the M790 controller. b. The controller allows full operation and monitoring of both pH and ORP levels.
  • Page 17 M790 pH/ORP Controller Owner’s Manual 2. pH standby Note: While in this mode, the green pH standby LED will illuminate, both the pH and ORP digital displays will show dashes, and all Auto functions will be disabled. When a function pushbutton is pressed, the corresponding digital display will show the function.
  • Page 18 M790 pH/ORP Controller Owner’s Manual 3. When the Dose Timer is changed from either timed or continuous feed, the Over Timer is reset to Default. d. High Alert - Default: 8.0 pH 1. Default: 8.0 pH 2. Selectable range: OFF, 7.5 pH to 8.4 pH (acid feed). A...
  • Page 19 M790 pH/ORP Controller Owner’s Manual pH Cal 1. Default: 0-volt sensor input, displays 7.0 pH 2. Selectable range: With a 0-volt sensor input, the display is adjustable from 6.1 pH to 7.9 pH. 3. ORP standby Note: While in this mode, the yellow ORP standby LED will illumi- nate, both the pH and ORP digital displays will show dashes, and all Auto functions will be disabled.
  • Page 20 M790 pH/ORP Controller Owner’s Manual preset cycle is reached, the ORP digital display will flash and the pH output relay will de-energize. - Preset: 30 cycles ii. If the Dose Timer is set to a continuous feed mode, the Over Timer will count in minutes.
  • Page 21 M790 pH/ORP Controller Owner’s Manual 3. Changing Low Alert setting i. Press Mode button to enter ORP standby ii. Press and hold Mode button and then press Set Level button (red ORP alert LED will come on) release both buttons. You are now in Set Alerts mode.

  • Page 22: Maintenance

    M790 pH/ORP Controller Owner’s Manual C. Maintenance 1. Winterizing (extended shutdowns or colder climates) a. Turn off the M790 controller and shut off main power to controller. b. Gently remove the ph and ORP sensors from the flow cell. Fill the provided protective caps (removed during installation) with water and re-install onto each sensor, and store in a warm, secure location.
  • Page 23 M790 pH/ORP Controller Owner’s Manual Open the flow cell valves and wait for a few minutes for the system to stabilize and get an accurate reading. Adjust the Set Level if necessary. If the sensor does not show the indicated readings, then it must be replaced.

  • Page 24: Troubleshooting

    M790 pH/ORP Controller Owner’s Manual Troubleshooting A. Chlorine/Bromine level too low 1. ORP Set level is too low: Check Sanitizer level with test kit and adjust Set Level as necessary 2. Chemical feed rate too low: Increase the feed rate.
  • Page 25 M790 pH/ORP Controller Owner’s Manual D. pH level too high 1. pH Set level is too low: Check pH level with test kit and adjust Set Level as necessary. 2. Sensor tip is dirty: Clean according to maintenance instructions. 3. Improper pH sensor calibration: Adjust pH calibration.
  • Page 26 M790 pH/ORP Controller Owner’s Manual G. Display and LEDs off 1. No power supply: Check circuit breaker. H. Feeder not operating 1. Inadequate Flow: Check flow through flow cell and controller. 2. Bad fuse: Replace fuse. I. Flow LED off 1.

  • Page 27: Warranty

    M790 pH/ORP Controller Owner’s Manual Warranty IPS-M790 pH/ORP Controllers IPS Controllers warrants the IPS-M790 controller to be free of defects in materials and workmanship for a period of five (5) years from the date of installation. This warranty is limited to the repair or replacement of defective components (at our discretion) when returned to the factory within the five (5) year warranty period.
  • Page 28 Factory Contact: 26111 Ynez Road, Suite C-4, Temecula, CA 92591 phone. 877-693-6903, fax. 951-693-3224 web. www.ipscontrollers.com M790OM 5/17...

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