Owner's manual

NORDAC SK 200E Manual
28 BU 0240 GB
Name Part Number
Approved for
ATEX Zone 22 3D
Not approved for
ATEX Zone 22 3D
SK TU4-POT-123-B(-C) 275281110 / (275281160)
x
SK TU4-POT-140-B(-C) 275281111 / (275281161)
x
SK TU4-PBR-M12(-C) 275281200 / (275281250)
x
SK TU4-CAO-M12(-C) 275281201 / (275281251)
x
SK TU4-DEV-M12(-C) 275281202 / (275281252)
x
SK TU4-IOE-M12(-C) 275281206 / (275281206)
x
4.2.2.2 Customer Units for ATEX Zone 22 3D
Name Part Number
Approved for
ATEX Zone 22 3D
Not approved for
ATEX Zone 22 3D
SK CU4-PBR 275271000
x
SK CU4-CAO 275271001
x
SK CU4-DEV 275271002
x
SK CU4-IOE 275271006
x
SK CU4-POT 275271207
x
SK CU4-24V-123-B 275271108
x
SK CU4-24V-140-B 275271109
x
SK ATX-POT 275142000
x
The SK 2x5E for Category 3D can be equipped with an ATEX-compliant potentiometer, which can be used
to adjust a setpoint (e.g. speed) on the device. The potentiometer is used with an M20-M25 extension in
one of the M25 cable glands. The selected setpoint can be adjusted with a screwdriver. Due to the
removable screw closing cap, this component
complies with ATEX requirements. Permanent
operation may only be carried out with the cap
closed.
Setting adjustment
using a screwdriver
Potentiometer resistance 10 kOhm
Wire colours on the
potentiometer
Name Terminal CU4-24V Terminal CU4-IOE
Red +10V reference [11] [11]
Black AGND / 0V [12] [12]
Green Analog input [14] [14] / [16]
NOTE: For the use of a potentiometer with frequency inverter SK 2x5E a Customer Unit CU4-24V-xxx-B
or CU4-IOE is necessary.