Manual

4 ELECTRICAL CONNECTIONS
46
OPTIWAVE 5200 C/F
www.krohne.com 07/2013 - 4001904902 - HB OPTIWAVE 5200 R02 en
4.3 Remote device data
4.3.1 Requirements for signal cables supplied by the customer
Non-Ex devices only:
Non-Ex devices only:Non-Ex devices only:
Non-Ex devices only: The signal cable is an option for non-Ex devices. If the signal cable is not
supplied by the device manufacturer, the cable must have properties that follow:
Basic properties
• Twisted cable 2 by 2, shielded or screened. For example, multicore cable — reference
MCD 5123 — from Cabletec ICS/JP Electronics.
Maximum length of the signal cable
• 100 m / 328 ft
Temperature
• Use electrical cable with the applicable temperature rating for the operating conditions.
• Ambient temperature range: -40...+80°C / -40...+175°F
• We recommend that the cable agrees with UL 94V-0.
Dimensions of the insulated conductors
• Min.-max. cross-sectional area of the conductors: 4×0.326...4×2.5 mm² (22....14 AWG),
shielded cable
• Use the applicable cable for the cable glands (Ø6....10 mm / 0.24...0.39¨).
• Use the applicable cable glands for the cable entry openings in the housing.
Electrical characteristics
• Test voltage: Insulated conductor / shield (screen) ≥ 500 VAC
• Line resistance: < 55 Ω/km
• The cable must agree with EN 60811 (Low Voltage Directive) or equivalent national
regulations.
DANGER!
An Ex-approved signal cable is supplied by the manufacturer with devices for hazardous
locations. Use of this signal cable is mandatory.