Myron L 729II User Manual
Page 47
43
10. If three minutes is too long or too short, adjust control
inside RA until desired mute time is achieved (adjustable
from approximately 15 seconds to 10 minutes). see
figure III.G.1.
11. Replace the bottom of the RA, and secure to surface you
have selected for its installation.
12. Carefully reinstall the controller front panel, bottom first.
Ensure no wires have been pinched between enclosure
and front panel.
13. Reinstall the screws and tighten.
14. To operate, turn power ON.
*NOTE: If the RA does not sound off;
1. Check the polarity of the extension wire connections.
2. Be sure the controller is actually switching (relay will
click).
MYRON L
COMPANY
HYS1
SP1
SP
AN
ZERO
7 pH/ZERO mV
PUSH TO TEST
SET POINT
#1 CONTROL
SET POINT #1
HYSTERESIS
RIGHT INC
LEFT DEC
SPAN (GAIN)
RA
Connector
PUSH TO TEST
Figure III.G.2
CHS
GND
FUSE*
115/
230
UP
}
ZERO SPAN
3S
PA
RA
DEC
SPC
MAIN CB ASSEMBLY
PWR
C GD NC NO CM
BT WT RD GN NU R- R+
TRANSFORMER
ORP ZERO
DIS
INC
pH
721 726
722 727
723 728
724 729
DO NOT
ADJUST
CONFIGURATION
MODULE
REMOVE T
O INST
ALL
SECOND RELA
Y