13
IV. System Operation Overview
Operation
MegaTronMT controllers have two modes of operation, RUN and SET-UP.
RUN
7KLVPRGHLVIRUQRUPDORSHUDWLRQ,QWKH581PRGHWKHGLVSOD\ZLOOVKRZHDFKV\VWHP¶VSDUDPHWHUV
,IDQDODUPLVSUHVHQWWKH$/$50ER[ZLOOÀDVKKRZPDQ\DODUPVDUHDFWLYDWHG1RVHWWLQJVPD\EHHQWHUHG
or changed in the RUN mode. Readings are updated every 6 seconds on the screen while in the RUN mode.
SET-UP
- This mode is used to make adjustments to settings and readings on the controller. To access the
SET UP mode from the RUN screen, press the SETUP/RUN key.
Typical Start Up Instruction
Complete all installation steps before beginning this procedure. Ensure that all controlled devices (pumps,
solenoid valves, etc.) are operational and connected to the controller. Open the isolation valves to allow water
to pass through the sample stream assembly. Before beginning the start up procedure, familiarize yourself
with the programming and operation of the system by reviewing the menus available. Use the keys of the
controller to skim through all your options.
A.
Calibration
All MegaTronMT controllers are factory calibrated for temperature, conductivity, pH and ORP. All units are
shipped with the date preset, and the clock set to your current time. These readings and settings should be
YHUL¿HGIRUDFFXUDF\DQGDGMXVWHGDVSHUWKHLQVWUXFWLRQVOLVWHGEHORZ
1.
Conductivity
- To calibrate the conductivity reading, remove the electrode from the line and wipe the
ÀDWVXUIDFHZLWKDFOHDQFORWK5HLQVWDOOWKHHOHFWURGHDQGRSHQWKHLVRODWLRQYDOYHVWRDOORZDVDPSOH
DFURVVWKHSUREH%HVXUHWRDOORZWKHUHDGLQJWRVWDELOL]HIRURQHPLQXWH6HOHFW³6<67(0&21'´IURP
WKH³&$/,%5$7,21´PHQX7KHQNH\LQWKHFRUUHFWHGFRQGXFWLYLW\YDOXH3UHVV(17(5WRORJLQWKDW
reading.
Note:
Boiler probes must have a fresh hot sample. See page 16 for more details.
2.
pH
- Under normal operating conditions, pH calibration is achieved using the following steps. From the
³&$/,%5$7,21´PHQXVHOHFW³6<67(03+´(QWHUWKHFYDOXH3UHVV(17(5WRORJLQWKHQHZ
reading.
3.
ORP
7RFDOLEUDWH253IURPWKH&$/,%5$7,21PHQXVHOHFW³6<67(0253´&RPSDUHWKHGLVSOD\HG
reading to the actual system ORP. If these readings do not match, key in the correct ORP value, and
push ENTER.
There are limits to how much the calibration can be adjusted. The instrument will only accept new conductivity
values which are from 1/3 to 8x the present reading. Any entry outside this range will cause a default to the
original reading. If this happens, call 1-918-686-6211 for technical assistance.
