- Industrial Controllers Model PRC-20 with AR/t or RTR® Water Conditioning Control System CTL-UM-00114-EN-02 (April 2013) User Manual 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System Page ii April 2013 
- User Manual CONTENTS ABOUT THIS MANUAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 SAFETY INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 UNPACKING & INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System Page iv April 2013 
- User Manual ABOUT THIS MANUAL This manual contains information concerning the installation, operation and maintenance of the Badge Meter® Model PRC-20 with AR/t or RTR® Water Conditioning Control System. To ensure proper performance of the system, the instructions given in this manual should be thoroughly understood and followed. SAFETY INFORMATION The installation of the Model PRC-20 must comply with all applicable federal, state, and local rules, regulations, and codes. 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System OPERATION The basic function of the Badger Meter® PRC-20 controller is to provide a relay output signal to external equipment to control tank regeneration. Regeneration may be started automatically when a predetermined amount of water is measured by the water meter, or may be manually started by a front panel or remote Start input. The batch size, up to 99,999,900 gallons, is preset on the front panel, and the display counts down to zero. 
- User Manual WIRING There are seven terminal blocks on the rear of the PRC-20 controller. Three of them will require wiring, one may require wiring, and three will not require any wires. Do not use any of the unused terminals in the following diagrams for wiring points. Damage to the controller could result. 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System Transmitter Input + white AR/t Pulse Transmitter - black 12V 15 16 Gnd 17 + red RTR T ransmitter Register - black 12V 15 16 Gnd 17 black Reed Switch black 12V 15 16 Gnd 17 Regeneration Relay Output Common Normally closed Normally open 1 Page 8 2 3 5A, 250 VAC / 30 VDC max. 12-24 AWG Suppress inductive loads with RC surge suppressor (150 ohm, 0. 
- User Manual Control Inputs Start and Stop Inputs Start G 1 2 3 All switch loads 5VDC @ 1mA 16-28 AWG terminal wiring Stop 4 5 6 7 8 9 10 G Dry Contact or NPN Lock Use either a mechanical switch, or an NPN transistor connected between input 3 and either ground terminal. 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System DO NOT APPLY AC VOLTAGE DIRECTLY TO CONTROL INPUTS. DAMAGE TO THE UNIT WILL RESULT. USE A SOLID-STATE INPUT MODULE (BADGER METER PART 66413-001), OR DISCONNECT LOCK SWITCH FROM AC, AND WIRE DIRECTLY ACROSS INPUT 8 AND GROUND. 
- User Manual PROGRAMMING Installation programming requires the setup of three parameters: • Mode (either Auto or Manual) • 115V AC lockout (either NO or NC) • Flow transmitter pulse weight (either 1, 10 or 100 gallons per pulse) These settings are not normally changed after installation is completed, and are done on a display screen hidden from normal operator viewing. 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System Run Mode When the Badger Meter PRC-20 controller is powered up, the display will normally show one of two screens. Pressing the View/Enter key will toggle the display between the screens. • Screen 1 displays the running batch count on the top line, the batch preset on line 2, the time of day, day of week , and date on line 3, and the Start and Stop key identifiers on line 4. 
- User Manual Change Batch Preset Value The batch preset value appears on line 2 of display screen 1. It will be a six, seven, or eight digit number. Only the six most significant digits of this number are editable. Any remaining zeroes in the least significant place or places will always remain at zero. Press the Edit key. One of the digits on line 2 will be flashing. If any zeroes are to the right of the flashing digit, they cannot be changed, and the preset must be entered with those in mind. 
- Model PRC-20 with AR/t or RTR® Water Conditioning Control System CONTROL SYSTEM LAYOUT Audible Alarm Remote Control Panel Output Relay Contacts RTR (Disc/RCDL Turbo) or AR/t (Industrial Turbo) Cycle Controller Timer Flow Meter Pump Treatment System SPECIFICATIONS Power Input 85…265V AC, 47…63 Hz Signal Inputs Transmitter Pulse Input Dry switch closure or electronic transmitter (current sinking) Lockout Signal Input Dry switch closure/open collector and 115V AC (optically isolated) Remote Start and St 
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- RTR is a registered trademark of Badger Meter, Inc. Other trademarks appearing in this document are the property of their respective entities. Due to continuous research, product improvements and enhancements, Badger Meter reserves the right to change product or system specifications without notice, except to the extent an outstanding contractual obligation exists. © 2013 Badger Meter, Inc. All rights reserved. www.badgermeter.