Myron L 750 II Series User Manual

48
I. PIEZO ELECTRIC ALARM
-PA Piezo Electric Alarm ordered with Digital
Monitor/controller.
PAO Piezo Electric Alarm ordered separately for Digital or
remotely mounted Analog Monitor/controller or OEM
models.
1. DESCRIPTION
The PA/PAO is an electronic sound device capable of emitting a
80dBormore@30cm,highpitchedsqueal.SeegureIII.I.1.
Specications
 OscillatingFrequency—3.0≠0.5KHz
 OperatingVoltage(750II)—24VDCNom.(1.5-30VDCMax.)
 SoundPressureLevel(Min)30cm/12VDC—80dB
 Currentconsumption(Max)@12VDC—12mA
Tone — Constant
 OperatingTemperature—-20-+60°C
Size — 24 x 9.5 mm
2. INSTALLATION
Briey-
The PA/PAO Piezo Alarm attaches to the front panel with the
tapesupplied,seegureIII.I.3.
The wire harness plugs into a methode connector on the main
CB*,seegureIII.I.4.
*MayalsobeconnectedtotheSCModuleasshowningure
III.I.5, if desired or so equipped.
WARNING: BEFORE STARTING, IF MONITOR/
CONTROLLER IS INSTALLED, ENSURE THE POWER IS OFF.
FAILURE TO DO SO COULD CAUSE DAMAGE TO THE IN-
STRUMENT, AND COULD BE HARMFUL OR FATAL TO PER-
SONNEL. ONLY QUALIFIED PERSONNEL SHOULD INSTALL
OR SERVICE ELECTRICAL EQUIPMENT.
Physical
NOTE: Remote mounting will require a .25” (6.35mm) hole, and
extending the harness. Use #22 gauge speaker wire. Observe
polarity.
If the front panel has all ready been removed from the enclosure
skip to #4.
1. Using a standard slot screwdriver remove the four (4)
screws on the front panel.
2. Carefully wiggle the front panel to loosen.
Pull gently toward you. Do not pull more
than about 8 inches/20CM or you could damage the
wiring harness.
3. Turn the front panel around so that the back side is
facing you.
4. Using a 1/4” drill or a sharp knife, carefully open the
CENTER front hole in the front panel as shown in
  gureIII.I.2.
5. Peal off tape backing from PA, and install between
  guidesasshowningureIII.I.3.
6. Set front panel aside.
7. Connect wire harness to Main CB as shown in
  gureIII.I.4,ortoSCasshowningureIII.I.5.
Test
1. Turn power ON.Dependingonconguration,thePiezo
will sound off when —.
NOTE: If the sensor is connected, the solution value, set point
value and Set Point Conversion (SPC) jumpers may affect the
test.
a. For a Conductivity/TDS Monitor/controller, as
shipped from the Myron L
®
Company, the alarm
will
!
CAUTION - READ FOLLOWING CAREFULLY
Figure III.I.1
Double Backed Tape
Harness ~12"
Piezo Alarm
Methode Connector
Figure III.I.2
FRONT PANEL
Rear View
CUT OPEN
THIS HOLE

Myron L 750 II Series Specifications

General

Brand	Myron L
Model	750 II Series
Category	Controller
Language	English