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Advantage Controls MICROtron MICRO-C, Руководство пользователя

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12

Conductivity Sampling Methods

 

A.   Continuous

 - Typical for most tower applications.  The controller is constantly reading the sensor 

and activating the bleed relay based on readings relationship to the set point, set point direction 

and differential.  Example:  A rising set point of 1500 and differential of 50 the bleed relay would 

activate when the conductivity rises above 1500 and stays on until the reading drops to 1450.

B.   Timed Sampling

 - A sample timer allows the conductivity to be sampled at periodic intervals.

 

Sample intervals are adjustable from 1 minute to 99 hours, 59 min. Sample duration (on-time) is 

adjustable from 1 second to 99 minutes, 59 seconds.  If the reading is below the set point by the 

differential amount the bleed relay will be turned off at the end of the sample duration and the 

sample interval countdown started.  If the reading is above the set point at the end of the sample 

method the bleed relay stays on until the reading drops by the differential amount.

Calibration Overview

The MICRO-C controllers update the conductivity reading every two seconds with a running average.  If a probe 

is quickly exposed from one extreme reading to another, allow up to 30 seconds for the averaging to cycle 

and the current reading to stabilize.  MICROtron controller’s conductivity scale should be selected so that the 

conductivity setpoint is as close as possible to the middle of the scale.  (See page 9 menu for setting scale).

Note:  If a controller is using Timed Sampling method of control the conductivity reading shown in the 

RUN mode may not be a current reading.  The controller will hold and display the conductivity value 

seen at the end of the last sample or hold duration.  To see a current reading force on the bleed relay 

with either the Force button or via the Calibration menu.

A.   Continuous

 - Calibrating continuous sampling units can be done at any time with the probe in a 

steady stream of water with no air or steam present.

B.   Timed Sampling

 - While in the calibration menu there is a selection to force on the bleed relay.  

It will force it into the sample period.  After 1-2 minutes verify that the reading is stable then enter 

the desired calibration value.

Notes: 

1.  If you change the conductivity scale in the Configure menu you MUST then go to Diagnostics 

and Reset the Cal then go to the Calibration menu and calibrate accordingly.

Содержание MICROtron MICRO-C

Страница 1: ...tron MICRO C MICRO F4 Installation Maintenance Repair Manual Advantage Controls P O Box 1472 Muskogee OK 74402 Phone 918 686 6211 Fax 918 686 6212 www advantagecontrols com email support advantagecontrols com 07 2017 ...

Страница 2: ... 4 Electrode Installation 5 Cooling Tower Installation 5 IV Front Panel Description 6 V System Operation Overview 7 Description of SET UP Menu Screens 7 MICRO C Menu Map 8 MICRO F4 Menu Map 10 Conductivity Sampling Methods 12 A Continuous B Timed Sampling Calibration Overview 12 A Continuous B Timed Sampling VI Maintenance 13 VII Troubleshooting 13 VIII Warranty 30 Day Billing Memo Policy 14 ...

Страница 3: ...chemicals or the activation of other devices via a relay output MICRO C units include One totalizing water meter input that can be configured for contacting head or hall effect meter inputs Four mechanical relay outputs with normally open and normally closed contacts A manual relay timer that allows for manual activation of the relays for a user defined amount of time Conductivity Control C Conduc...

Страница 4: ...tage must be disconnected while making any connections If power is supplied to the unit line voltage will be present on the relay cards 3 Low voltage signal wires probes flow switch water meter etc should never be run in conduit with high voltage wires Logic and Relay Cards Logic Board Relay Power Board Rev D Ribbon Cable 2 1 10 9 POWER INPUT POWER SUPPLY Relay 1 Relay 2 Relay 3 Relay 4 Relay 5 5A...

Страница 5: ...ressure must be higher than outlet pressure in order for water to flow past the electrode s to achieve the required rate The probes are temperature compensated for increased accuracy NOTES 1 Install an isolation valve on either side of the flow assembly so electrodes can be easily isolated for removal and cleaning 2 A line strainer is recommended upstream from the probes to protect against fouling...

Страница 6: ...d to change the display from one line to the next Submenus will return to the top menu loop when all options are displayed ENTER Used to access menus and accept changed values CLEAR Used to clear numerical values being changed in SET UP mode BACK Used to move the cursor back when entering numerical values NUMBERS Used to enter new values in MENU mode ...

Страница 7: ...the up or down arrow to scroll through the various SET UP menus When you want to enter a specific SET UP menu press the ENTER key Once you have entered a SET UP sub menu you will be able to step through that menu s options with the down arrow key Relays may be forced on while in the SET UP mode Press the desired relay test key to force it on Press it a second time to turn it off The relay will act...

Страница 8: ...ed Cond Sc Recycle Off Time hh mm Run Time mm ss 28 Day Bio A All Days Cond Un A All Weeks Post Timer Post Timer of RUN 000 A Start 12 00a Zero Cond A Run Time hh mm Feed OK W A Prbld hh mm Timed Mode Interval hh mm A Lkout hh mm No Feed No Duration mm ss B All Days Setpoint 01500 B All Weeks Diff 0100 B Start 12 00a Direction Rise B Run Time hh mm High Alm 02500 B Prbld hh mm Low Alm 00600 B Lkou...

Страница 9: ...to prevent false contacts from water meter Set debounce to 0 for paddle wheel meters Reduce value if contacts are missed Default approx 500 0 32 767 scale Manual Relay Force Relay X Force ON OFF Timer mm ss Units Imperial eat for timers MICRO C Menu Map MICRO C units have a main menu circle that includes Calibration Calibrating the conductivity reading Bleed Set Setting the conductivity bleed set ...

Страница 10: ...ss 28 Day Bio A All Days A All Weeks A Start 12 00a A Run Time hh mm Feed OK W A Prbld hh mm A Lkout hh mm No Feed No B All Days B All Weeks B Start 12 00a B Run Time hh mm B Prbld hh mm B Lkout hh mm Units Imp Alarm List Scroll down to see all active alarms Repeat for other timers Post Timer Post Timer of RUN 000 ...

Страница 11: ...prevent false contacts from water meter Set debounce to 0 for paddle wheel meters Reduce value if contacts are missed Manual Relay Force Relay X Force ON OFF Timer mm ss Units Imperial peat for er timers t Timer RUN 000 MICRO F4 Menu Map MICRO F4 units have a main menu circle that includes Alarm List Displays all active alarms Timer Set Select the timer type and run values Configure Password flow ...

Страница 12: ...nds with a running average If a probe is quickly exposed from one extreme reading to another allow up to 30 seconds for the averaging to cycle and the current reading to stabilize MICROtron controller s conductivity scale should be selected so that the conductivity setpoint is as close as possible to the middle of the scale See page 9 menu for setting scale Note If a controller is using Timed Samp...

Страница 13: ...lat surface such as a bench top Sand electrode to remove stubborn deposits Do not wipe surface with your finger Oil from your skin will foul carbon tips 5 Reinstall the electrode in the system After the reading stabilizes calibrate the unit to a reliable test reading Many times an electrode can appear to be clean but the unit still cannot be calibrated If this is the case use one of the more aggre...

Страница 14: ...on If we are unable to diagnose and solve your problem over the phone a fully warranted replacement unit will be shipped usually within 48 hours on a 30 Day Billing Memo This service requires a purchase order and the replacement unit is billed to your regular account for payment The replacement unit will be billed at current list price for that model less any applicable resale discount Upon return...

Страница 15: ...15 ...

Страница 16: ...ment needs Cooling Tower Controllers Boiler Blow Down Controllers Blow Down Valve Packages Solenoid Valves Water Meters Chemical Metering Pumps Corrosion Coupon Racks Chemical Solution Tanks Solid Feed Systems Feed Timers Filter Equipment Glycol Feed Systems Pre Fabricated Systems Get the Advantage 5 4 3 2 1 ENTER HELP 5 4 3 CHANGE RUN SET UP 0 9 8 2 1 7 6 HOME BACK ...

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