ADC 410F Instruções de Operação descarregar pdf (Página 8)

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1.3 Electrical connection of separate primary head (F Versions)

1.3.1 General information on signal cable A and field current cable C

Use of the Krohne signal cable A with foil screen and magnetic shield will ensure proper operation

of the equipment.

• Signal cable to be solidly laid.

• Connect shields via stranded drain wires.

• Underwater and underground installation possible.

• Insulating material is flame-retardant to IEC IEC 332.1 / VDE 0742.

• Signal cables are low in halogen, unplasticized, and stay flexible at low temperatures.

gnal cable A (Type DS), with double shielding

1 Stranded drain wire, 1st shield, 1.5 mm

or AWG14

2 Insulation

3 Conductor 0.5 mm

or AWG 20 (3.1 red / 3.2 white)

4 Special foil, 1st shield

5 Inner sheath

6 Mu-metal foil, 2nd shield

7 Stranded drain wire, 2nd shield, 0.5 mm

or AWG 20

8 Outher sheath

Field current cable C

with single shielding

Cross-section is dependent on required length of cable, see Table in Sect. 1.3.4.

1.3.2 Stripping (preparation) of signal cable A

Please note the different lengths given in the table for signal converter and primary head.

Length Converter Primary

head

mm (inch) mm (inch)

a 70 (2.80) 90 (3.60)

b 08 (0.30) 08 (0.30)

c 25 (1.00) 25 (1.00)

d 08 (0.30) 08 (0.30)

e 50 (2.00) 70 (2.80)

Customer-supplied materials

Insulation tubing (PVC), 2.0 - 2.5 mm dia. (1”)

X Heat-shrinkable tubing or cable sleeve

Y Wire end sleeve to DIN 41 228: E 1.5-8

Z Wire end sleeve to DIN 41 228: E 0.5-8

Please note:

For primary heads, stranded drain wire 1

must have the same length as stranded drain wire 7.

See Section 1.3.4 for max. permissible cable lengths

Signal cable A

bending radius

≥ 50 mm (≥ 2”)

1 2 3 4 5 6 7 8 9 10 11 12 13 ... 78 79

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