Idex Pulseafeeder MicroVision Boiler User manual

MicroVision Boiler
MICROPROCESSOR – BASED
WATER TREATMENT
CONTROLLER
Installation Operation Manual

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TABLE OF CONTENTS
INTRODUCTION..............................................................................................................................3
MICROVISION FEATURES.............................................................................................................3
Output Relays ............................................................................................................................3
Drum Levels ............................................................................................................................3
4-20mA Output .........................................................................................................................4
Water Meter ............................................................................................................................4
Alarm Relay ............................................................................................................................4
INSTALLATION ............................................................................................................................5
Location ...................................................................................................................................6
Mounting Hardware....................................................................................................................6
Sensor Installation ...................................................................................................................7
TYPICAL INSTALLATION ..............................................................................................................8
IMPORTANT SYMBOL INFORMATION .........................................................................................9
ELECTRICAL WIRING ....................................................................................................................9
RELAY BOARD CONNECTIONS .................................................................................................10
Conduit Models .......................................................................................................................10
LOW VOLTAGE CONNECTIONS ................................................................................................11
Sensor (probe) Connection Input ..........................................................................................11
Water Meter Input ............................................................................................................11
Drum Level Input ................................................................................................................ 11
4-20mA Output .......................................................................................................................11
Water Meter ..........................................................................................................................11
Alarm Relay ................................................................................................................ 11
FRONT PANEL DESCRIPTION ................................................................................................... 12
Keypad Operation .................................................................................................................13
CONTROLLER PROGRAMMING ................................................................................................13
Menu Tree ..............................................................................................................................13
Menu Navigation ....................................................................................................................14
Home Screen .......................................................................................................................14
Main Menu ......................................................................................................................... 14
Configure Menu .......................................................................................................................15
HOA Relay Output Menu.........................................................................................................16
Inputs Menu ..........................................................................................................................17
Drum Level Menu .................................................................................................................17
Display Dampener Settings ................................................................................................18
Password Setting .................................................................................................................19
Troubleshoot Screen ...............................................................................................................19
Factory Reset Function ...........................................................................................................20
Settings Menu ............................................................................................................................20
Blowdown Menu.......................................................................................................................21
4-20mA ..............................................................................................................................21
Calibration Menu......................................................................................................................23
Timers Menu............................................................................................................................24
FACTORY DEFAULT VALUES/ USER SETTINGS .....................................................................27
SATURATED STEAM TABLE ...................................................................................................27
TROUBLESHOOTING GUIDE ...................................................................................................28
MAINTENANCE ..........................................................................................................................29
SPECIFICATIONS .......................................................................................................................29
GLOSSARY .................................................................................................................................30
FACTORY SERVICE POLICY.......................................................................................................31
WARRANTY .................................................................................................................................32

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INTRODUCTION
The MicroVision microprocessor-based Boiler controller has been designed to monitor and control
Total Dissolved Solids (TDS) in terms of electrical conductivity measured in micro Siemens per
centimeter (uS/cm). A set point of the desired conductivity is entered into the controller through the
front panel. As this limit is exceeded, a blowdown valve is opened via an onboard control relay on
either a timed, continuous or sample and hold basis. The system’s water, with higher concentrations
of TDS, is drained from the system resulting in feed water being added, reducing the concentration
of TDS in the Boiler.
The MicroVision has five (5) output relays assigned as follows:
Relay 1 – Blowdown
Relay 2 – Timer #1
Relay 3 – Timer #2
Relay 4 – Timer #3
Relay 5 – Alarm or Timer #4 (normally open dry contact)
MICROVISION FEATURES
Output Relays
The control of the four HANDS – OFF – AUTO (HOA) output relays can be controlled using the HOA
menu.
RELAY STATUS
LED COLOR
ON (FORCED ON FOR 5 MIN.)
AMBER
OFF
RED
AUTOMATIC ‘ON’
GREEN
AUTOMATIC ‘OFF’
OFF
Inputs:
The MicroVision has 5 digital inputs that can be programmed as follows:
Programmable Inputs
Input 1
Input 2
Input 3
Input 4
Input 5
Drum Level
X (Timer 2)
X (Timer 3)
X (Timer 4)
X (Timer5)
Contacting Head Water Meter
X
X
X
X
X
Hall Effect Water Meter
X
Interlock
X
Drum Levels
When an input is defined as a drum level it is linked to the corresponding relay output. For example, if
input #2 is set as drum level, it will be linked to relay two and may be set by the user to either
deactivate the relay, or only to activate an alarm.

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Interlock
MicroVision has a dry contact interlock option for input number 5 that will de-activate all of the control
output relays upon an interlock condition indication. The interlock input requires that an auxiliary
relay (not supplied) is installed across the boiler operation controls to produce a dry contact closure
when the boiler is online and an open circuit when the boiler is offline. The Alarm message “Interlock
on” will flash on the screen when the controllers interlock feature is on.
If an interlock or other alarm condition exists, the four (4) LED’s will flash until
the alarm condition is cleared.
Water Meter
Each input may be programmed as water meter inputs that are capable of reading a dry contact
water meter. Input number one can be set to read a Hall Effect type water meter. Through
programming this input can be used to feed inhibitor as well as totalizing water consumption.
Alarm Relay (Relay #5)
MicroVision has a dedicated dry contact relay that can be used to interface with process control
equipment or visual indicators. This relay is un-powered and may also be programmed as a timer.
4-20mA Output
Connect your 4-20mA equipment to J8 (Fig. 7) pins + and -. The 4-20mA output uses 24VDC as a
supply voltage. See the “Conductivity Menu” section (Page 24) for setting up and calibrating the 4-
20mA output. When in the timed sample, or the sample and hold modes the 4-20mA output will only
update during the sample time and the hold times. During the interval times the output will remain at
the last sample value.

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INSTALLATION
Opening the Enclosure
Loosen the two (2) thumb screws to open the front cover of the controller, then loosen the
inside panel thumb screw and carefully swing the panel to the right (Fig. 2).

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Location
Select a mounting location convenient to grounded electrical and plumbing connections. It is
recommended that you mount the controller on a wall or other vertical surface with adequate
lighting at a comfortable level. A mounting-hole template is supplied with your controller.
Installation should comply with all national, state, and local codes.
AVOID LOCATIONS WHERE THE CONTROLLER WOULD BE SUBJECTED TO EXTREME
COLD OR HEAT {LESS THAN 0°F (-17,8°C) OR GREATER THAN 150 °F (65°C)}, DIRECT
SUNLIGHT,VIBRATION,VAPORS,LIQUID SPILLS,OR EMI (ELECTROMAGNET
INTERFERENCE;E.G., STRONG RADIO TRANSMISSION AND ELECTRIC MOTORS.)
SAFETY PROTECTION PROVIDED BY THE EQUIPMENT MAY BE IMPARED IF THE
EQUIPMENT IS USED IN A MANNER NOT SPECIFIED BY THE MANUFACTURER.
Fig. 3
Mount the controller using the four (4) holes provided (Fig. 3).
Mounting Hardware
Typically, use ¼” (6mm) or equivalent.

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Sensor Installation
The controller is supplied with a temperature compensated or non temperature conductivity
sensor (probe). The probe location must be in a position where adequate flow is going
around and through the probe (Fig. 4) so that the controller will be able to display a good
measurement. The two flats of the sensor must be perpendicular to flow as shown.
Fig. 4

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TYPICAL INSTALLATION
Fig. 5

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IMPORTANT SYMBOL INFORMATION
Warning indicates a condition that could cause damage to both the equipment
and the personnel operating it. Pay close attention to any warning.
Primary Supply Ground must be connected to earth ground for safe operation of
your controller.
Chassis Ground – Connect your equipment’s ground wire here for safe
operation of your external devices.
ELECTRICAL WIRING
CONTROLLER MUST BE WIRED IN ACCORDANCE WITH ALL APPLICABLE ELECTRICAL
CODES.
The MicroVision electronic input circuitry is fuse protected on both the hot and neutral inputs
using a replaceable five-amp fuse (Fig .6).
For additional protection of your instrument, use of a surge protector is recommended.
The controller should be connected to a dedicated power branch (i.e., its own wiring,
circuit breaker, etc.). For best results, the ground should be independent (true earth)
not shared.
A switch or circuit-breaker marked as the unit’s disconnecting device should be
included in the installation. It should be near the unit and be easily reached by the
operator
Pre-wired controllers are supplied with a 3-wire grounded power cord and 3-wire grounded
receptacle cords for all controlled line voltage outputs.

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RELAY BOARD CONNECTIONS
Fig. 6
Conduit Models (Wiring High Voltage)
Conduit controllers have openings for conduit connections for hard wiring. (See Fig. 6) for input and
output power connections. Use only 18 AWG (1,2 mm²) stranded wire for conduit power and load
connections. Supply (input) A/C power is connected via the terminal block located on the back panel
marked “A/C Power” (Fig. 6). The top part of this terminal block is removable to allow for easy
access to the connector’s three (3) screws.
MAKE SURE THAT YOUR CONTROLLER VOLTAGE MATCHES THE INPUT VOLTAGE.
DO NOT APPLY POWER UNTIL THIS CONDITION IS VERIFIED.
Make sure that all conduit connections are watertight.
The four (4) output relay terminal blocks are identified as: PL1 (bleed), PL2 (Inhib), PL3 (Bio A),
and PL4 (Bio B). The Blowdown relay has a N.O. and a N.C. connection, the others are only N.O.