American Magnetics 185 & 186 Liquid Level Instruments (CE-Marked) - Manual (Page 24)

14 Rev. 3
Installation
Interconnects with oscillator and valve
2.6 Installing an Optional Solenoid-operated Fill Valve
Install a solenoid-operated fill valve by connecting the valve power cable to
the AC controller output receptacle on the rear panel of the instrument.
The standard AMI supplied valve has a 9/32 inch orifice and the input and
output are tapped for 3/8 NPT. Operation of the controller output
receptacle in AUTO mode should be avoided until the instrument setpoints
have been specified. See the Operation section for details on specifying the
setpoints and selecting the operational mode for the controller output
receptacle.
Caution
When using a solenoid-operated control valve with the Model 186,
ensure the valve is configured for the operating voltage of the Model
186. Failure to do so will result in faulty operation and may also
result in valve damage.
Warning
Before touching any of the controller output receptacle terminals or
touching the wiring connected to these terminals, remove power to
the instrument by unplugging it or turning the power switch to the
off position.
The controller output receptacle conducts hazardous AC line voltage
potentials. It is for use with equipment which has no live parts
which are accessible. Conductors connected to its terminals must be
insulated from user contact by reinforced or double insulation
capable of withstanding 4250 V (impulse) for a 240 VAC Category II
installation, or 2550 V (impulse) for a 120 VAC Category II
installation.
This instrument is designed for operation from a single-phase power
source for maximum safety. The controller output receptacle
circuitry only switches the “line” (“hot”) connection to the AC mains.
If two-phase power is applied, any equipment connected to the
controller output receptacle conducts hazardous AC voltage even
when the controller output receptacle is not energized.
0RGHO