Myron L Aquaswitch II - Manual (Page 28)

T e s t
1. Turn power ON. Depending on configuration, 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 Resistivity AQUASWITCH II , as shipped
from the Myron L Company, the alarm will sound
off when the power is applied and stop when the Full
Scale Test Switch is pressed.
b. For a Conductivity/TDS AQUASWITCH II , as
shipped from the Myron L Company, the alarm will
sound off when the Full Scale Test Switch is
pressed
c. If the Set Point Conversion (SPC) jumpers have
been reversed, the opposite will be true in the
above descriptions.
2. Turn power OFF.
REASSEMBLY
Before reassembly, ensure set point control is set to desired trip
point.
1. Carefully reinstall the front panel, bottom first. Ensure no
wires have been pinched between enclosure and front
panel.
2. Reinstall the two (2) screws and tighten.
3. To operate, turn power ON.
25
Figure III.B.4
PA Connection
(may use either
connector)
CHS GND
H Y S 1 S P 1 FS SW
FUSE*
115/
230
DIS
CAL
3 S
PA
RA
FULL SCALE
PUSH TO TEST
SPC
TRANSFORMER
751 756
752 757
753 758
754 759
MYRON L
COMPANY
-11
0-20m
Ω
U P
}
I N C
DEC
MAIN MONITOR/CONTROLLER
CIRCUIT BOARD
Figure III.B.3
Piezo
Alarm
AQUASWITCH II
FRONT PANEL
Rear View
BK WT RD GN NU R- R+
PWR C GD NC NO CM
REMOVE TO
INSTALL
SECOND
RELAY