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72-910-16  Rev. N 
Page 12 of 43 

5.1  RELAY BOARD CONNECTIONS

3

 

HOT

RET

HOT

RET

AC POWER IN 

MOTORIZED BALL VALVE
(4-WIRE)

PUMP
(3-WIRE)

(RETURN / NEUTRAL)
(EARTH / CHASSIS GROUND)
(NORMALLY / OPEN)

(RETURN / NEUTRAL)
(EARTH / CHASSIS GROUND)
(NORMALLY / OPEN)

(NORMALLY / CLOSED)

BLEED

INHIB

BIO A

BIO B

SUPPLY

BLEED

INHIB

BIO A

BIO B

5A

F2

5A

F1

HOT

RET

HOT

RET

HOT

RET

HOT

RET

HOT

RET

HOT

RET

PL2

PL3

PL4

PL5

HOT

no

nc

 

Fig. 6 

 

5.2  Conduit Models (Wiring High Voltage)

4

 

 

 

Devices attached to any Relay connection must be Single Phase and rated for 
the same voltage as the input voltage to the product.  (e. g. 120VAC MicroTrac 
controllers support 120VAC relay attached devices exclusively and 220VAC 
MicroTrac controller support 220VAC relay attached devices exclusively.) 

Do not apply power until this condition is verified. 

 
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 

                                                      

3

 Trained service personnel are required for all electrical connections.  This product does not contain operator 

serviceable parts. 

4

 Trained service personnel are required for all electrical connections.  This product does not contain operator 

serviceable parts. 

Summary of Contents for MicroVision

Page 1: ...72 910 16 Rev N Page 1 of 43 MicroVision MICROPROCESSOR BASED WATER TREATMENT CONTROLLER Installation Operation Manual...

Page 2: ...W VOLTAGE CONNECTIONS 13 5 4 Flow Switch Input 14 5 5 Sensor probe Connection Input 14 5 6 Water Meter Input 14 5 7 Drum Level Input 14 5 8 4 20mA Output 14 5 9 Alarm Relay 14 6 FRONT PANEL DESCRIPTIO...

Page 3: ...27 7 24 Inhibitor Inhibitor Feed Mode Post Blowdown Menu 28 7 25 Inhibitor Bio Tracking Menu 28 7 26 Biocide A or B Menu 29 7 27 Biocide A or B Days Weeks Menu 30 8 Probe Calibration 31 9 Factory Def...

Page 4: ...up water being added reducing the concentration of TDS in the cooling system In addition to the bleed relay MicroVision has three 3 other onboard control relays assigned as follows Relay 1 Bleed contr...

Page 5: ...rolled using the HOA menu RELAY STATUS LED COLOR ON FORCED ON FOR 5 MIN AMBER OFF RED AUTOMATIC ON GREEN AUTOMATIC OFF OFF 2 3 Drum Levels Three 3 onboard dry contact inputs serve as Drum Level inputs...

Page 6: ...ductivity Menu section Page 24 for setting up and calibrating the 4 20mA output 2 6 Water Meter MicroVision has a dedicated water meter that is capable of reading a dry contact or Hall effect type wat...

Page 7: ...of the case to the right Fig 2 J10 J4 J5 J8 J3 J2 5V BLK W METER ALARM ORG BRN RED DRUM LEVEL INHIB BIO A BIO B FLOW HINGE BOTTOM HALF TOP HALF SWINGS OPEN TO THE RIGHT 4 20mA BLEED INHIB BIO A BIO B...

Page 8: ...LLS 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...

Page 9: ...low is going around and through the probe Fig 4 so that the controller will be able to display a good measurement Fig 4 3 5 Flow Sensor Switch If your controller is provided with a flow switch install...

Page 10: ...MATION 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 gr...

Page 11: ...and making any electrical connections 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...

Page 12: ...rated for the same voltage as the input voltage to the product e g 120VAC MicroTrac controllers support 120VAC relay attached devices exclusively and 220VAC MicroTrac controller support 220VAC relay a...

Page 13: ...3 LOW VOLTAGE CONNECTIONS5 The low voltage connections are found on the low voltage right side board Fig 6 Use 22 24 AWG 76 mm wire for flow switch drum levels dry alarm and water meter connections Th...

Page 14: ...to J2 as shown Fig 7 5 6 Water Meter Input Connect your water meter to J3 of the top board For proper connections refer to Fig 7 for your meter type Hall effect or contacting head 5 7 Drum Level Input...

Page 15: ...iocide B DISPLAY SCREEN Fig 8 6 1 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 depen...

Page 16: ...TER DRUM LEVELS DISP DAMP RISE FALL CONTRAST PASSWORD TROUBLESHOOT SOFTWARE VER FACTORY RST SETTINGS CONDUCTIVITY INHIBITOR BIOCIDE A or B SETPOINT DIFFERENTIAL PROBE CAL ALARM SETP T 4 20 OUTPUT INH...

Page 17: ...been selected 7 3 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 scr...

Page 18: ...me in hours the biocide A output was energized since it was last reset BioB The amount of time in hours the biocide B output was energized since it was last reset Probe Temp Current probe temperature...

Page 19: ...parameters to factory default 7 7 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 curr...

Page 20: ...and view or reset the water meter totalizer Meter Type Select between a dry contact or Hall effect water meter Once the type is selected enter the resolution or volume per pulse Units Select gallons...

Page 21: ...ated on the Home Screen and dampening of the controller response to sudden changes in conductivity Display Dampener Set this value to the number of seconds you want the controller to dampen the displa...

Page 22: ...tting 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 ena...

Page 23: ...open closed contact closed Cond Probe conductivity reading Temp Probe temperature Wk Revolving week number between one and four This is used in the biocide Days Weeks settings Day Day of week This is...

Page 24: ...he 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...

Page 25: ...unctions Additionally the conductivity probe calibration alarm setpoints and the scalable 4 20ma output functions are also configured in this section Setpoint Set the conductivity setpoint This is the...

Page 26: ...want an alarm when the conductivity reaches above or below the conductivity setpoint an equal amount Example Setpoint 1200 Track Setpoint 200 an alarm will be reported when the conductivity reaches ab...

Page 27: ...of 60 minutes or 6 minutes every 60 minutes Post Blowdown See the menu for this function in the following section 7 23 Inhibitor Inhibitor Feed Mode Pulse Timer Menu From this menu configure how you w...

Page 28: ...ents from 0 to 99 of the blowdown time This timer also includes a limit timer to prevent overfeed Percentage Set this value to the amount of time as a percentage you want the inhibitor to feed after a...

Page 29: ...y minimum and a fixed time and bleed lockout function with each biocide feed Days Weeks Set the days and weeks you want the biocide to feed See the next section for details on how to set the days and...

Page 30: ...on to the bottom of the display The selected day or week will flash as the cursor is moved to each setting The flashing On Off text indicates if the current setting is on or off If a day or week is hi...

Page 31: ...to the Probe Calibration screen Step 2 Draw a sample of the process flow water and measure the conductivity using a calibrated meter Be certain the meter you are using to measure conductivity is temp...

Page 32: ...no bubbles trapped in the center hole of the probe Do not set the container and probe on a metallic surface or near an electric motor or other source of strong electrical field Step 2 Allow the probe...

Page 33: ...ngs Conductivity Setpoint 1500 Conductivity Differential 50 Conductivity Limit Timer 00 00 disabled Alarm Setpoint Track Setpoint 200us 4 20ma Low Range 0 4 20ma High Range 9999 Inhibitor Feed Mode Li...

Page 34: ...nductivity low limit setting See Page 25 Excessive amount of air in and around conductivity probe Prime flow assembly Bleed valve stuck open Replace clean bleed valve Controller displays Cond High ala...

Page 35: ...ose Check probe connections See Figure F7 Page 13 Bad Conductivity probe Replace probe Controller displays Clock Err alarm message Internal controller clock failure Replace controller Controller displ...

Page 36: ...ibility for this controller null and void DISCONNECT POWER BEFORE OPENING THE UNIT TO ACCESS FUSES MAKE SURE THAT REPLACEMENT FUSES ARE OF SAME TYPE TO MAINTAIN SAFTEY APPROVALS FUSE6 TYPE F1 F2 5A IE...

Page 37: ...5 Meters Materials of construction Polypropylene Thread size Standard thread Excludes Tee and Reducer Maximum outside diameter 1 5 38 mm Excludes Tee and Reducer Conductivity reading 0 9999 uS cm 1 u...

Page 38: ...text in screen display verses background Cooling Tower a structure of various sizes that allows heat to radiate away from the system water Cursor See prompt Cycle Timer a timing device that can be pre...

Page 39: ...to the time bleed is executed before biocide feed Program Parameters the user programmed settings that determine how the controller responds to conditions of the system under control Prompt a curser u...

Page 40: ...electrical conductivity S CM Temperature Compensation displays conductivity as if measured at 77 F 25 C Toroidal Conductivity Non contacting conductivity sensor used for high values Totalizer a re set...

Page 41: ...72 910 16 Rev N Page 41 of 43 14 MOUNTING HOLE PATTERN Footprint Fig 9...

Page 42: ...ems of its manufacture to be free of defects in material or workmanship Liability under this policy extends for 24 months from date of shipment Electrodes probes are considered maintenance items and a...

Page 43: ...72 910 16 Rev N Page 43 of 43 USA Pulsafeeder Inc 27101 Airport Rd Punta Gorda FL 33982 USA 941 575 3800 www pulsa com European Union EU PULSAFEEDER Europe Via Kennedy 12 20090 Segrate Milano Italy...

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