INSTRUMENTATION WITH QUALITY ENGINEERING
INSTRUMENTS, INC.
INSTRUMENTATION WITH QUALITY ENGINEERING
INSTRUMENTATION WITH QUALITY ENGINEERING
INSTRUMENTS, INC.
INSTRUMENTS, INC.
®
INSTALLATION
MOUNTING- The Eagle line of SOLAR controllers are designed to be mounted indoors, protected from rain and
condensing moisture. Use two #10 screws in the enclosure “keyholes” for mounting.
POWER WIRING- Hard wired models are designed for 120 vac operation unless special ordered. If relay is
wired to switch any voltage other than 120 vac then the “20 AMP RELAY JUMPER” MUST BE REMOVED. Use
solid wire in 16 or 18 ga. and stranded (19 max) in 12 or 14 ga. Same gage and stranding must be used under
both sides of each clamping washer. All wiring must be done in accordance with local codes. Models supplied
with line cords and receptacles are to be connected directly to power outlets without the use of extension cords.
Line and power wires should NOT be bundled with or placed in the same conduit with sensor or data cables.
SENSOR INSTALLATION AND WIRING- Sensor installation should be in a manner as to permit proper sensor
contact of the areas to be measured. Shield and/or insulate the sensors to prevent them from being affected by
the surrounding ambient temperatures. Sensor wiring installed outdoors must be rated for OUTDOOR use.
It is recommended in today’s Radio interference “RICH” environment that all sensor wiring be shielded.
The cable SHIELDS must be brought to the shield grounding terminal that is the rightmost position on the
GREEN terminal block. See controller layout diagram. For ease of shield installation, insert one short wire in
the shield terminal labeled “SHLD” and connect all the shields together with a “wire-nut”or other reliable means.
Ungrounded shields may result in damage to the Solar controller circuits. The shield requires grounding at the
controller side ONLY. DO NOT attempt to ground the collector panel with the sensor shield.
For efficient and reliable wire connections, strip 3/8” (slightly shorter than block width) of insulation from an
undamaged wire end. Use a strip tool that will not nick the conductors. If wire is solid, make sure that the tip is
NOT pinched or deformed so that it will fit into the terminal hole easily. If the wire is stranded, make sure the
strands are tightly twisted. Using a
elect the appropriate screw and turn
CCW to open the terminal hole fully. Then guide the wire into the terminal hole and hold while tightening (turn
CW) the screw to clamp the wire.
slip off the
screw and damage any circuit components. If the wire is stranded, make sure that ALL the strands are properly
clamped in the terminal.
COLLECTOR GROUNDING- The Solar collector panel array “must be GROUNDED’ directly to an earth
ground line. This is necessary to prevent damage from nearby lightening strikes which induce very
DAMAGING high voltages in all nearby ungrounded metallic surfaces. Please consult local, state and federal
codes for proper grounding.
DATA LOGGING TO A COMPUTER- All the EAGLE Solar controllers can be connected to the serial port of a
PC or Laptop computers. An IMC DATA PORT/RS232 adapter is required. The maximum recommended
adapter cable length is 500 feet. All Windows operating systems have a communications programs such as
“Terminal” or “Hyper Terminal” which are used to receive and/or CAPTURE data from the PC’s serial port.
This feature is “EXTREMELY” valuable in starting up newly installed SOLAR systems. Long-term data
logging is now possible which can be very useful in service and diagnostics of intermittent malfunctions.
Complete “system status” including temperature is presented in a line by line format including timer
information.
In applications were the computer’s interface is going to be permanent it is recommended that
the EAGLE WEB model be used in order to protect the connecting computer from electrical surges.
Please visit our website for news or more detailed instruction at
“www.solar.imcinstruments.com”.
All
connections exposed to the weather must be made with waterproof “outdoor” rated connectors.
Listed
below are a few suggested wire part numbers. Wire selected must also meet local codes and be rated for
indoor/outdoor use by its manufacturer.
1)
“PLTC” Belden # 9322 (22ga) or 9320 (20ga)
Best specifications
2)
“Control” Belden # 8761 (22ga) or 8762 (20ga)
Better specifications
3)
“Audio” Belden # 9451-10 Black (22ga)
Acceptable specifications
1/8" (3mm) wide blade screwdriver, s
WARNING- If a 5/32" (4mm) wide screwdriver blade is used, the screw
retaining edge of the hole will be scraped off allowing the screw to fall out. DO NOT reverse the screw turning
directions and place the wire outside the metal CAGE creating an unreliable connection. DO NOT
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