Myron L 729II - Manual (Page 3)

If you read nothing else in this
manual please read this
Quick Reference Guide.
PLEASE READ and COMPREHEND ALL
WARNINGS, CAUTIONS and ADVISEMENTS
CONTAINED WITHIN THIS MANUAL.
Failure to comply is beyond the responsibility of
the Myron L Company.
WARNING: ALL MONITOR/CONTROLLERS ARE
FACTORY SET TO OPERATE ON 115 VAC. BEFORE
APPLYING POWER ENSURE THE INPUT POWER
“115/230 VAC” SELECTION IS CORRECT FOR YOUR
REQUIREMENTS. FAILURE TO DO SO IS BEYOND
THE RESPONSIBILITY OF THE MYRON L COMPANY.
See section II.E.2. and figure II.E.1.
WARNING: ENSURE POWER IS OFF WHILE
INSTALLING ELECTRICAL EQUIPMENT. IF
MONITOR/CONTROLLER IS INSTALLED, ENSURE
THE POWER IS OFF BEFORE SERVICING. FAILURE
TO DO SO COULD CAUSE DAMAGE TO THE
INSTRUMENT, AND COULD BE HARMFUL OR FATAL
TO PERSONNEL. ONLY QUALIFIED PERSONNEL
SHOULD INSTALL OR SERVICE ELECTRICAL
EQUIPMENT.
WARNING: THE DISPLAY WILL BE IRREPARABLY
DAMAGED IF THE DISPLAY HARNESS IS INSTALLED
UPSIDE-DOWN OR MISALIGNED. THE HARNESS
MUST BE INSTALLED AS SHOWN IN FIGURE II.E.5.
CAUTIONS:
Before installation, ensure you have the correct
model (with options), AND it is ranged for your
application. See sections I.A., I.B. & I.G.
Do you have the correct sensor? See section I.E.
Mounting requirements. What is needed? See
section II.B.
Isolated 24 VDC output is referenced to the 0-10
VDC output. To maintain the isolation, do NOT
ground. See section II.B.4.
The following will give the installer and user a quick
overview. See the sections listed for details.
REMOVING FRONT PANEL
NOTE: When opening instrument, remove front cover with care;
a ribbon cable connects the front panel and main board.
1. Ensure power is OFF.
2. Remove the screws on the front panel.
3. Carefully wiggle the front panel to loosen the gasket and
pull gently toward you. Do not pull more than about 8
inches/20CM or you could damage the wiring harness.
REASSEMBLY
1. Carefully reinstall the front panel, bottom first.
Ensure no wires have been pinched between enclosure
and front panel.
2. Reinstall the screws and tighten.
3. To operate, turn power ON.
INTRODUCTION - Section I.
This section covers the specifications of your new
Monitor/controller including sensor information.
INSTALLATION - Section II.
This section covers how to install your new Monitor/controller;
mechanically and electrically.
OPTIONS & ACCESSORIES - Section III.
This section covers the specifications, installation, set up, and
operation of each option.
QUICK LOCATOR
SC/SCO MODULE, (Second Relay), see section III.A.
4A/4AO MODULE (4-20mA), see section III.B.
TP/TPO MODULE (Temperature), see section III.C.
TH/THO MODULE (Alarm /control Harness), see section III.D.
DUAL (stacking) Temperature (TPO) & 4-20mA (4A/4AO), see
section III.E.
PA/PAO (Piezo Alarm), see section III.F.
RA (Remote Alarm), see section III.G.
OPERATING PROCEDURES - Section IV.
This section covers a brief description of different models and
their features; how they work, and how to set them up for your
particular use.
QUICK SET POINT CONVERSION (SPC) /
REVERSING SET POINT - See Section IV.C.1.
pH & ORP Monitor/controllers are configured to trigger the alarm
relay as the reading increases.
To reverse:
1. Locate the jumper block for the alarm to be configured.
See figure V.A.1.
2. Remove and rotate the jumpers 1/4 turn and reinstall
them on their posts.
QUICK CHECK-OUT PROCEDURE -
See Section IV.C.2.
It is assumed that the Monitor/controller power is ON, that it is
connected to an appropriate Sensor, and that the Sensor is
immersed in water within the range that the Monitor/controller
will be required to read; and the front panel is removed.
1. Make a note of the reading on the display.
2. While pressing the Calibration/Full Scale Test Switch (FS
SW), verify that the front panel display is indicating a full
scale reading. If not, see Calibration, section V.C.
Continued
720 Series II MONITOR/CONTROLLER
QUICK REFERENCE GUIDE!