KROHNE OPTIWAVE 8300C Marine ATEX EN - Manual (Page 11)

ELECTRICAL CONNECTIONS
3
11
OPTIWAVE 8300 C
www.krohne.com 02/2009 - 4000407102 - AD ATEX OPTIWAVE 8300 R02 en
Electrical connections
3.1 General notes
3.2 Terminal compartment
3.2.1 How to open the terminal compartment
• De-energize the circuit.
• After the time given in the table that follows, remove the cover stop 1.
i Use a 3 mm allen wrench.
• Remove the terminal compartment cover 2.
Time necessary to de-energize an Ex d [ia]-approved device
WARNING!
•
De-energize the circuit.
• Use the applicable cable glands for the cable entry openings in the housing (Aluminium
housing: M26 x 1.5, M20 x 1.5, ½NPT or G½; Stainless steel housing: M25 x 1.5, M20 x 1.5,
½
NPT or G½). For the cable entry size, refer to the device nameplate.
• If ambient temperature >60°C / >140°F, use heat-resistant cables and cable glands certified
for continuous operation above 90°C / 194°F.
Figure 3-1: How to open the terminal compartment
1 Cover stop
2 Terminal compartment cover
WARNING!
Do not remove the terminal compartment cover while the electrical power is connected.
Temperature class Time to de-energize the Ex d [ia]-approved device
[minutes]
T6 20
T5 10
T4, T3 Not necessary
AD_ATEX_OPTIWAVE8300_EN_090407_4000407102_R02_PRT.book Page 11 Tuesday, April 7, 2009 5:07 PM