WIKA UT-11 - Manual (Page 7)

GB
WIKA operating instructions unitrans  indicator module model A-IUR-1 7
14040124.01 04/2012 GB/D/F/E
2. Safety
2.3 Additional safety instructions for instruments per ATEX
WARNING!
Non-observance of these instructions and their contents may
result in the loss of explosion protection.
EC type-examination certificate
Directive: 94/9/EC
Electrical, mechanical and thermal parameters for connection to an intrinsi-
cally safe circuit with the following maximum values:
Voltage U
i
: DC 9.2 V
Strength of current I
i
: 115 mA
Max. power
■ for temperature class T4: 0.133 W
■ for temperature class T5: 0.133 W
■ for temperature class T6: 0.066 W
Effective internal inductance L
i
: Negligible
Effective internal capacitance C
i
: 2 µF
Specific conditions for safe use.
The indicator is suitable for use in the following ambient temperature ranges:
■ Temperature class T4: -20 ... +70 °C
■ Temperature class T5 and T6: -20 ... +60 °C
The mounting of the indicator to intrinsically safe electrical equipment must
be tested and certified; after mounting, an ingress protection of IP 20 in
accordance with EN 60529 must be ensured for the entire equipment.