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Flintec KAL-4 User Manual

Page 3

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Digital Junction Box Type KAL-4 – Technical Manual, Rev. 1.00 Dezember 2010

Page 3 of 4

I

NTRODUCTION AND TECHNICAL

D

ATA

The painted aluminium junction box KAL-4 is designed to connect up to 4 load cells in parallel. A socket on
the printed circuit board is prepared for accommodating one type LDU xx.x Load Cell Digitizing Unit.

Type

No. of load cells

Housing size

Inputs

Outputs

KAL-4

up to 4

80 x 250 x 52 mm

4x M16

3x M16

Housing material:

Aluminium

Protection class:

IP66

Cable connection:

With clamping terminals

Corner correction:

By exchangeable resistors


M

ECHANICAL

I

NSTALLATION

Look for a mounting location which is more or less dry and protected from environmental stress.

E

LECTRICAL

C

ONNECTIONS

Figure 1: Dimensions in [mm]

The connection sequence of the load cells should correspond to the corners of the scale, i.e
Corner 1 = Load cell 1, Corner 2 = Load cell 2, etc.

L

OAD

C

ELL

C

ABLE

C

ONNECTION

First the cable gland (see in fig.1) must be loosened. Then you have to feed the load cell cable through the
cable gland unless the shrink tube is fully disappeared in the box. The wires have to run below the printed
circuit board and will be pulled back to the top at the upper end of the printed circuit board. Afterwards you can
connect the cables to the clamping terminals as indicated below:

Cable coulour

Description

Terminal designation

yellow

= Cable shield

Shield / Schirm

red

= Signal – (Output –)

red / rot

white

= Signal + (Output +)

white /weiss

black

= Excitation – (Input –)

black / schwarz

(if applicable, brown)*

= Sense –

black / schwarz

green

= Excitation + (Input +)

green / grün

(if applicable, blue)*

= Sense +

green / grün

* if load cell is equiped with 6-wire conductor cable

After all conductors have been clamped to the terminals, the cable glands must be tightened. Please verify
that all cable glands are tight and the cable is fully stress relieved.