Thermo Scientific Ramsey MINI CK100, Operating And Service Manual

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2-4
2.2.1 Critical Wiring Condition
1. Ensure power is off at the mains
2. Do not route load cell and signal cables in the same conduit with power cables or any large
source of electrical noise.
3. Earth ground all enclosures and conduits. A ground connection between all conduits is
required.
4. Connect the shields ONLY where shown.
5. Check that all wires are tight in their connections.
6. Never use a “megger” to check the wiring.
7. A readily accessible disconnect device (Max 10A) shall be incorporated in the field wiring.
This disconnect should be in easy reach of the operator and it must be marked as the
disconnecting device for the equipment.
8. All conduits should enter the bottom of the enclosure. Do not run conduit through the top or
sides of the enclosure.
CAUTION
REFER TO THE FILED WIRING DIAGRAM AS A GUIDE IF YOU
DO NOT HAVE A SPECIFIC WIRING DIAGRAM FOR YOUR
SYSTEM
. F
OLLOW YOUR LOCAL ELECTRICAL CODES AND
REGUATIONS FOR MINIMUM WIRE SIZE AND ROUTING
.
2.3 Installation
The MINI CK100 is available for mounting in a control panel or for field mounting.
2.3.1 Mounting
The mounting place must be carefully selected, avoiding places where there are vibrations,
high temperature or humidity.
The
MINI CK100 (Panel Version) is supplied for mounting on a covered front panel with any
inclination compared to the orizontal position.
The
MINI CK100 (Field Version) is supplied for mounting in open air. It is suggested a
mounting in a protected position against rain about, in a place with strong vibrations, it is
better to provide a mounting using non vibrating devices.
The instrument must be positioned with a suitable height in order to easily read the display and
con veniently access to the key board.