SPX FLOW APV CU4 plus Instruction Manual page 61

Internal JST
Internal 14
Internal 15
Internal Y1
Internal Y2
Internal Y3
External Service port
Internal P
Ex marking: Ex ec IIB T4 Gc
- Producers should organize production in accordance with the technical documents
approved by the certification body.
2. Specific conditions of safety use:
- Ambient temperature range: 0℃~+55℃.
- The control unit CU4** resp. CU4*plus* have to be installed and used in such a way,
that electrostatic charging from operation, maintenance and cleaning is excluded.
- The base of the control unit CU4** resp. CU4*plus* has to be installed in such a way
that it is protected from UV-radiation.
- The connecting and disconnecting of the pluggable electrical circuits inclusive the field
wirings is only permitted if no explosive atmosphere exists.
- The control unit type CU4** resp. CU4*plus* has to be erected in such a way that a
pollution degree 2 or better, according to GB/T 16935.1, is achieved.
Issued date: 2023-10-27
No.：2023312304001783
Sensor 1 Linear Sensor 1
Sensor 2 Sensor Signal 2
GND Mass potential for sensor supply
PWM Output Solenoid valve 1 (main valve)
PWM Output Solenoid valve 2 (upper seat lift)
PWM Output Solenoid valve 3 (lower seat lift)
-- Connection serial/USB converter for
CU4plus toolbox software
Pressure sensor Pressure measurement of main actuator
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