Idex Pulseafeeder MicroVision Boiler User manual

MicroVision Boiler
MICROPROCESSOR – BASED
WATER TREATMENT
CONTROLLER
Installation Operation Manual

2
72-910-24 Revision H
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

3
72-910-24 Revision H
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.

4
72-910-24 Revision H
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.

5
72-910-24 Revision H
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).

6
72-910-24 Revision H
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.

7
72-910-24 Revision H
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

8
72-910-24 Revision H
TYPICAL INSTALLATION
Fig. 5

9
72-910-24 Revision H
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.

10
72-910-24 Revision H
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.

11
72-910-24 Revision H
LOW VOLTAGE CONNECTIONS
The low voltage connections are found on the low voltage (front panel) board (Fig. 7).
Use 22-24 AWG (,76 mm²) wire for: interlock, drum levels, dry alarm, and water meter connections.
These signal wires must be run separate from AC power lines.
Fig. 7
Low voltage signal wires, e.g., water meter, must be run separate from AC power lines.
Sensor (probe) Connection Input
The controller may be supplied with a Stainless conductivity sensor. Connect the wires to “Sensor
In” as shown (Fig. 7).
* If you are using a sensor without temperature compensation, place a jumper wire
between the GRN and WHT connections in the SENSOR IN terminal block.

12
72-910-24 Revision H
Digital Inputs
Input # 1
Connect your dry contact water meter to J3 of the top board. For proper connections, refer to (Fig. 7)
for your meter type, Hall effect, or contacting head may be used.
Input # 2 to # 4
Connect your water meter, or drum level switch to J10 (Fig. 7). They are labeled as, Input 2, 3, and 4.
These are active closed: closed = low level; open = level is OK.
Input # 5
Connect your water meter, drum level switch, or interlock auxiliary dry contact wires to J4
Interlock Input
It is recommended that an auxiliary dry contact be used to make outputs inoperative when the
boiler is shut down. Connect detection wires to J4
(Fig. 7), to use this interlock feature. This is active – open:
open = not interlocked; closed = Interlock On.
Alarm Relay
Use J5 to connect your alarm reporting equipment. This relay will close when an alarm condition
exists and will open when no alarm conditions are present. See the Trouble Shooting Guide (Page
31) for a description of alarm codes and their probable causes.
FRONT PANEL DESCRIPTION
Fig. 8

13
72-910-24 Revision H
Keypad Operation
UP/DOWN - Dual function keys. Used to move the select (highlighted) box and to increase
and decrease values.
O O - Soft keys used for various functions depending on currently displayed screen.
The key’s function appears above the key on the display.
CONTROLLER PROGRAMMING
Menu Tree

14
72-910-24 Revision H
Menu Navigation
MicroVision uses four front panel buttons to navigate through the different menus. Use these buttons
to move up and down within a list of options or move right and left to enter or change parameter
values. In some cases, the Microvision display will prompt you to press the different buttons to assist
you in selecting or changing data.
Some menus may display highlighted menu options or a checkmark () next to a menu option. The
highlighted menu option is used to indicate that another menu will be displayed if this option is chosen.
The checkmark indicates that a particular control mode has been selected.
Home screen
This screen is displayed during normal operation when there are no alarm conditions on the
Microvision. If an alarm condition occurs an alarm message will flash on the screen. The four LED’s to
the right of the display will also flash indicating an alarm has occurred.
The MicroVision will return to this home screen if no buttons are pressed for five minutes after entering
a menu.
Main Menu
The Main menu is the starting point for all subsequent menus.
Configure – This menu allows you to set the time and date, display contrast, water meter, etc.
Settings – This menu allows you to set the conductivity, and chemical feed modes.
Status Screen
Home Screen
Output hours
Bdn: 123.4 Tmr 1: 123.4
Tmr 2: 123.4 Tmr 3: 123.4
Tmr 4 : 0.2
Last Error: Cond Low
Back | Reset
Home Screen
Configure
Settings
Back | Select
Date/Time
HOA Outputs
Inputs
Back | Select
Auto
On 5 Min
Off
Back | Select
01/23/09 | 11:42a
Bd: Timed
2900 uS/cm
Status | Menu

15
72-910-24 Revision H
This screen shows the real-time data relating to the controller. This screen can be used to log
the amount of time a particular output was energized since it was last reset. Below is a
description of each of the data fields:
Bdn– The amount of time, in hours, the blowdown output was energized since it was last reset.
Tmr 1 – The amount of time, in hours, the timer 1 output was energized since it was last reset.
Tmr 2 – The amount of time, in hours, the timer 2 output was energized since it was last reset.
Tmr 3 – The amount of time, in hours, the timer 3 output was energized since it was last reset.
Tmr 4– The amount of time, in hours, the alarm output (or timer 4 if programmed) output was
energized since it was last reset.
Last Error – Shows the most recent error that was displayed on the controller.
Pressing the reset key will cause the hour timers to reset to zero.
Configure Menu
From the Configure menu you can select many different system configuration options.
Date/Time – Set the current date, date format, time, and time format.
Date/Time – Set the current date, date format, time, and time format.
HOA Outputs – Manually control the five relays.
Inputs – Set the input type, drum level, or water meter type and volume.
Gal/Lit – Set the display in Gallons or liters.
Scrolling – Set the time between each timer’s status scrolling speed on the home screen.
Totalizers- View the water meter totalizer values since the last user reset.
Contrast – Set the display contrast.
Password – Set the user password.
Troubleshoot – View the signal inputs in real-time to diagnose wiring problems.
Display Dampener – Set the display and control update period.
Software Version – Displays the current software version.
Factory Restore – Restore the parameters to factory default.
Home Screen
Date/Time
HOA Outputs
Inputs
Gal/Lit
Scrolling
Totalizers
Contrast
Password
Troubleshoot
Disp Damp
Software Ver
Factory Rst
Back | Select
Configure

16
72-910-24 Revision H
Date/Time Menu
From the Date/Time menu you can set the data and time as well as the date and time display formats.
Set Date – Set the current date.
Set Time – Set the current time.
Date Format – Pick the day/month/year format.
Time Format – Pick the 12-hour or 24-hour time of day format.
HOA Outputs Menu
From the HOA Outputs menu you can manually set the five relay outputs. This is useful for servicing
chemical pumps or troubleshooting electrical problems. You must first select the relay output to be
controlled then select the relay state.
Blowdown – Force the blowdown control output on or off.
Timer 1 – Force the Timer 1 control output on or off.
Timer 2 – Force the Timer 2 control output on or off.
Timer 3 – Force the Timer 3 control output on or off.
Timer 4 – Force the Timer 4 control output on or off.
Auto – Return the control output to normal operation.
On 5 Min – Energize the control output for five minutes.
Off – De-energize the control output indefinitely.
Forcing the output to Auto may cause the control output to energize without warning.
Home Screen
HOA Outputs
Blowdown
Timer 1
Timer 2
Timer 3
Timer 4
Back | Select
Auto
On 5 Min
Off
Back | Select
Home Screen
Configure
Date/Time
Set Date
Set Time
Date Format
Time Format
Back | Select

17
72-910-24 Revision H
Inputs Menu
From the Inputs menu you select what type of device the controller is attached to. Once the type of
input has been entered the next screen will ask you for the gallons/liters per pulse or “K-factor”, or level
action depending on the type of device.
Input Type – Select between a dry contact or Hall-effect water meter on input 1. Select
between a dry contact water meter, or drum levels on input 2 to 4. Select between a dry contact
water meter, or drum level or flow switch on input 5. Once the type is selected as a water meter
the resolution or volume per pulse is then set.
Drum Levels Sub Menu
From the Drum Level menu, you select how you want the chemical pump control output to respond to
a low drum level indication. Your choices are to allow the pump to continue to run or have the pump
stop when its drum level goes low. Input one is tied to relay one
Pump Stops – Selecting this mode causes the timer outputs to de-energize when their drum
level goes low.
Pump Runs – Selecting this mode causes the timer outputs to remain energized even though
their drum level has gone low.
When a drum level goes low the controller will go into alarm regardless of this setting.
Re-filling a low drum may cause the pump control output to energize without warning.
Home Screen
Configure
Inputs
Dry Contact
√Drum low
Back | Select
Pump Stops
Pump Runs
Back | Select
Input 2
Home Screen
Configure
Inputs
Input 1
Input 2
Input 3
Input 4
Input 5
Back | Select
Input 1
Dry Contact
Hall Effect
Drum low
Back | Select
Input 2 -4
Dry Contact
Drum low
Back | Select
Input 5
Dry Contact
Flow Switch
Drum low
Back | Select

18
72-910-24 Revision H
Gallons or Liters
Gal/lit – Set how the controller should display the water meter units of measure.
Scrolling
From the Display Scrolling setting you can adjust how frequently the controllers display will scroll from
one timer’s status to the blowdown timers and conductivity readings on the home screen.
Scrolling – Set the number of seconds to scroll.
Display Dampener
From the Display Dampener setting option you select how often you want the actual conductivity
reading updated on the Home Screen and dampening of the controller response to sudden changes in
conductivity. In the timed mode and sample and hold modes the reading only changes in real time
during the sample times and hold times.
Display Dampener – Set this value to the number of seconds you want the controller to
dampen the displayed conductivity and controller response.
The controller takes a conductivity reading every second. Increasing this value above one
second causes the controller to average the readings, hence, slowing down the control
functions. In the timed mode and sample and hold modes the reading only changes in real time
during the sample times and hold times.
Display Contrast Setting
From the Display Contrast setting you adjust the display contrast to give the best clarity and readability
of the display screen.
Contrast – Adjust this value up or down to give you the best display contrast.
Home Screen
Configure
Scrolling
Scrolling
03 Sec
Cancel |Enter
Home Screen
Configure
Gal/Lit
√Gallons
Liters
Cancel |Enter
Home Screen
Configure
Disp Damp
Display
Dampener
01 sec
Cancel |Enter
Contrast
Contrast
26
Cancel |Enter
Home Screen

19
72-910-24 Revision H
Password Setting
From the Password setting you select the user password that will be required to gain access to the
Configuration and Settings menus. Once the password is set to anything other than 0000 (4-zeros) the
password feature is enabled. To disable password protection, return the password to 0000 (4-zeros).
Password – Set the user password.
Once the password is set the controller will require a password to access any menus. If the
password is lost or unknown, you will have to call technical service to gain access to the
controller menus. Please have the controller in front of you when you place the call.
Troubleshoot Screen
From the Troubleshoot Screen you can view the MicroVision control inputs in real-time. This is a great
tool for checking the correct operation of sensors that are attached to the controller.
Input 1 to 5– (J4 pins 1-2). Indicates current state closed, or open.
Wk – Revolving week number between one and four. This is used in the 28-day timer
Days/Weeks settings.
Cnd – Displays the current conductivity reading in real time
Tmp – Displays the current temperature in degrees C
Day – Day of week. This is used in the 28-day timer Days/Weeks settings.
Sec - Current clock seconds.
While this screen is displaying information, the controller is still functioning normally, and
relay outputs may energize without warning due to changing signal inputs.
Software Version
From the Software Version screen, you can view the current software that is running in the Microvision
controller.
Software Version – This screen displays the current software version.
Home Screen
Configure
Troubleshoot
Ip 1: Open Ip 2: Open
Ip 3: Open Ip 4: Open
Ip 5: Open
Cnd: 03500 Tmp: 65.3 C
Wk: 2 Day:Mon Sec:23
Back | Back
Home Screen
Configure
Software Ver
Software
Version
01.00
Back |Back
Home Screen
Configure
Password
Change
Password
0000
Cancel |Enter

20
72-910-24 Revision H
Factory Reset Function
From the Factory Reset Function screen you can force the controller to reset all of its internal
parameter to the factory default values.
Use this function to reset the controller back to the factory defaults.
Be absolutely certain you want to reset all the parameters back to the factory defaults. Once
the reset takes place there is no way to retrieve the previous parameters.
Settings Menu
From the Settings menu you access the conductivity, and chemical feed timer parameter sections.
Blowdown – Set the conductivity set point, Blowdown timer sample mode, differential, probe
calibration, alarms, and 4-20ma output parameters.
Timers 1 to 4 – Set the Chemical feed timer modes.
Home Screen
Blowdown
Timer 1
Timer 2
Timer 3
Timer 4
Back | Select
Settings
Home Screen
Configure
Factory Rst
Factory Reset
Are you sure!
Cancel | OK
To RESET
Enter 9999
0000
Cancel | OK