KROHNE OPTIWAVE 8300C Marine ATEX EN - Manual (Page 16)

3
ELECTRICAL CONNECTIONS
16
OPTIWAVE 8300 C
www.krohne.com 02/2009 - 4000407102 - AD ATEX OPTIWAVE 8300 R02 en
Conduit entries
• Connect the device to an Ex d-approved conduit system.
• Install the applicable Ex d-approved sealing device. It must be installed adjacent to the
housing. For further information, refer to European Standard EN 60079-1.
• If you use only one cable entry, seal the other one with an Ex d-approved plug.
Load resistor
• Connect the load resistor to the positive terminal of the power supply
• Ground the negative connection.
• If the load resistor has to be connected to the negative terminal, the loop resistance must not
be more than 250 ohms.
3.6.3 Supply voltage
CAUTION!
Do not ground the positive connection.
Current output terminal Minimum voltage at output
terminal [VDC]
Maximum voltage at output
terminal [VDC]
1 (U
S1
) 20 1 36 1
2 (U
S2
) 2 10 1 30 1
1 for a current output of 22 mA
2 use a second power supply. This power supply energizes current output terminal 2 only.
AD_ATEX_OPTIWAVE8300_EN_090407_4000407102_R02_PRT.book Page 16 Tuesday, April 7, 2009 5:07 PM