WIKA TR30 Betriebsanleitung Seite 11

3. Specifications
Power supply
Max. permissible residual ripple
Power supply input
Power supply effect
Electromagnetic compatibility
(EMC)
Temperature units
Info data
Configuration and calibration data
Electrical connection
Explosion protection (option)
Readings in % refer to the measuring span
For a correct determination of the overall measuring error, both sensor and transmitter measuring deviations have to
be considered.
1) For detailed specifications for Pt100 sensors, see Technical Information IN 00.17 at www.wika.com.
2) The temperature transmitter should therefore be protected from temperatures over 85 °C
3) For measuring spans smaller than 50 K additional 0.1 K
4) ± 0.2 % for measuring ranges with a lower limit less than 0 °C
5) Use RTDs with shielded cable, and ground the shield on at least one end of the lead, if the cables are longer than 30 m or leave the
building.
Load diagram
1182
909
636
0
Voltage U
For setting the measuring range see chapter "7. Configuration of model TR30-W".
WIKA operating instructions model TR30 per ATEX
DC 10 ... 35 V
10 % at 24 V / maximum 300 Ω Load
protected against reverse polarity
± 0.025 % / V
2004/108/EC, DIN EN 61326 emission (Group 1, Class B) and immunity
(industrial application)
configurable °C, °F, K
TAG No., descriptor and message can be stored in transmitter
permanently stored in EEPROM
Angular DIN connector Form A, M12 x 1 circular connector, 4-pin
Intrinsically safe to Ex-i (ATEX) gas/dust, per Directive 94/9/EC
Marking: II 1G Ex ia IIC T* or II 2D Ex iaD 21 T*
Safety-related maximum values for the current loop (+ and - connections):
Ui = DC 30 V
10 24
in V
B
, and also per NAMUR NE21
5)
C = 6.2 nF I = 120 mA
i i
30 36
The permissible load depends on
the loop supply voltage.
L = 110 µH Pi = 800 mW
i
GB
11