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1)
4.4 Connection Cable
A shielded cable shall be used. The shield must be grounded only at one end, at the EE300Ex side.
The connection cable shall comply to the following specifications for ATEX, as required by EN60079-14
and EN60079-25:
• Maximum cross-section 1.5 mm² (0.02 in²)
• Single stranded wire diameter ≥ 0.1mm (0.004")
• Test voltage wire-wire ≥ 500 V AC eff.
• Test voltage wire-shield (if a cable with shield is used): ≥ 500 V AC eff.
• Cable inductivity, cable capacity and conductor resistance are to be evaluated during the proof of
intrinsic safety.
• Flame resistance acc. to IEC60332-1-2
Example of cable meeting above requirements: ÖLFLEX® EB CY from LAPP KABEL
Additional requirements if both channels (CH1, CH2) are connected with a common cable:
• The test voltage wire-wire ≥ 1000 V AC eff.
• The radial thickness of the insulation ≥ 0.2 mm (0.008").
• The conductor insulation shall withstand 500 V AC eff.
4.5 Calculation of the Maximum Cable Length
Intrinsically safe power supply device STAHL 9160/13-11-11 (order code HA011405)
Technical data for EE300Ex
Supply voltage:
Max. current:
Technical data for STAHL 9160/13-11-11
Nominal operating voltage:
Input voltage for sensor:
Max. load:
24
Hazardous location
EXPLOSIONSGEFÄHRDETER
BEREICH
1)
potential equalization connection
U
= 9V + RL * 0.02A
Bin
I
= 20mA
out max
U
= 24 V
N
U
= 16 V
S
R
= 600 Ohm
L
Unclassified location
SICHERER BEREICH
Instrument
Instrument
System
System
Safety barrier
Sicherheits-
barriere oder
or power
Speisegerät
supply unit
grounding of barriers
Erdung der Barrieren
central grounding
Zentrale Erdung
The braided screen should be turned back via the plastic insert on
the cable connection. The introduction of the plastic insert presses
the braided screen onto the interior wall of the metallic part.
User Manual EE300Ex Humidity / Temperature Sensor
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