
Operating Instructions
Pump ZPU 08 ATEX
810-53711-1
Page 36 / 57
Rev.: 003
31/07/2017
5.
Technical data of the capacitive sensor
Type designation
Capacitive sensor (Namur)
Part number
664-34621-3
Rated operating distance
Sn
5 mm in case of flush installation
7.5 mm in case of non-flush
installation
Secured switching distance
≤ (0.72 x Sn) mm
Hysteresis
1….. 20 %
Temperature drift
≤ ± 20 %
Repeatability
≤ 2 %
Ambient temperature
-25 °C - +70 °C
Voltage
nominal 8.2 VDC
Connection diagram
Current consumption, not
activated
≤
1.2 mA
Current consumption,
activated
≥ 2.1 mA
Switching frequency
0.1 kHz
Output function
2-wire NAMUR
Internal capacity (C
i
)
150 nF
Inductivity (L
i
)
150 µH
Design
Threaded tube M 18 x 1
Dimensions
74 mm
Housing material
Plastic PA12-GF30
Material of active surface
Plastic PA12-GF30, yellow
Admissible pressure onto
front closing cap
≤ 6 bar
Max. tightening torque
Housing nut
2 Nm
Connection
Cable
Cable quality
Ø 5.2 LiYY, PVC, 10 m
Cable cross section
2 x 0.34 mm
2
Vibration resistance
55 Hz (1mm)
Shock resistance
30 g (11ms)
Type of protection
IP 67
MTTF
448 years following SN 29500
40 °C
Switching status display
LED, yellow
Fine adjustment
Potentiometer
Approvals
KEMA 02 ATEX 1090X
Marking
II 2G EX ia IIC T6 Gb
II 1D EX ia IIIC T 115 °C Da
max. U
i
= 20 V, I
i
= 20mA, P
i
= 200 mW
Содержание ZPU 08
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