Endress+Hauser 16D/21D, Operating Instructions Manual

Page: 7 / 32

Condumax CLS15D/16D/21D Basic safety instructions
Hauser 7
Temperature classes
Name Type Medium temp. T
a
for temperature class (Tn) Cat.
Condumax CLS15D - A ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +120 °C (T4)
-20 °C ≤ Ta ≤ +70 °C (T6) II 1G
Condumax CLS15D - B/L ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +100 °C (T4)
-20 °C ≤ Ta ≤ +50 °C (T6) II 1G
Condumax CLS16D - ** ** G -5 °C ≤ Ta ≤ +135 °C (T3)
-5 °C ≤ Ta ≤ +115 °C (T4)
-5 °C ≤ Ta ≤ +65 °C (T6) II 1G
Condumax CLS21D - * ** G -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +115 °C (T4)
-20 °C ≤ Ta ≤ +65 °C (T6) II 1G
If the specified medium temperatures are complied with, temperatures that are not permitted
for the respective temperature class will not occur on the equipment.
ATEX/NEPSI II 3G Ex ic IIC T3/T4/T6 Gc
• The Memosens inductive sensor-cable connection system is suitable for use in hazardous
areas, Zone 2. The corresponding EU declaration of conformity is part of this document.
• The certified conductivity sensors CLS15D / CLS16D / CLS21D may only be connected via
the measuring cable CYK10-V*** to the certified intrinsically safe digital sensor output
circuits of measuring device Liquiline M CM42-KV*********.
• The electrical connection must be made according to the wiring diagram of the transmitter.
• Metallic process connection parts must be mounted at the mounting location
electrostatically conductive (< 1 MΩ).
• The CLS15D-type sensors with non-metal process connections and the CLS21D-type
sensors may only be employed for measurement in liquids with a minimum conductivity of
10 nS/cm.
• The CLS15D-type sensors with non-metal process connections may not be operated under
process conditions in which electrostatic charging of the sensor, particularly of the
electrically insulated outer electrode, is likely to occur.
• The maximum permitted cable length is 100 m.
• Full compliance with regulations for electrical systems in hazardous areas (EN/IEC
60079-14) is mandatory when using the devices and sensors.
Temperature classes
Name Type Medium temp. T
a
for temperature class (Tn) Cat.
Condumax CLS15D - A ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +120 °C (T4)
-20 °C ≤ Ta ≤ +70 °C (T6) II 3G
Condumax CLS15D - B/L ** V -20 °C ≤ Ta ≤ +135 °C (T3)
-20 °C ≤ Ta ≤ +100 °C (T4)
-20 °C ≤ Ta ≤ +50 °C (T6) II 3G