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8. Hazardous Areas: Electrical and Thermal Parameters
Certificate Number:
BVS 15 ATEX E 141 X
Thermal Parameters:
Temperature class
T6
T4
T3
Special Conditions
• The cable and the sensor shall only be used within the ambient temperature range specified
for the temperature class.
• The measuring cable including its connecting head must be protected from electrostatic char-
ging if it passes through areas of Zone 0 (category 1G).
• The Memosens sensors shall not be operated in electrostatically critical processing conditions.
Intense vapor or dust flows directly impacting on the connection system shall be avoided.
• Metallic process connection parts must be mounted at the installation site so that they are
electrostatically conductive (< 1 MΩ).
• The sensor shall be used only for measurements in liquids with a conductivity of at least
10 nS/cm.
9. Memosens Connecting Cable (Accessory)
Socket material
Sheath material
Cable diameter
Wire assignment
Length
Protection
Cable with Ferrules – Assignments:
12
Marking:
Ambient temperature range of
connecting head Ta
-20 °C < Ta < +65 °C
-20 °C < Ta < +115 °C
-20 °C < Ta < +135 °C
PEEK
TPE, max.130 °C, permanent
6.3 mm
See figure below.
Up to 100 m
IP 68 (10 m water column, 25 °C, 45 days, 1 mol/l KCl)
Brown
Green
Yellow
White
Transparent
II 1G Ex ia IIC T3/T4/T6 Ga
Maximum permissible
process temperature
65 °C
115 °C
135 °C
Power supply +
RS485 (A)
RS485 (B)
Power supply – (GND)
Shield
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