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STR215 - Rev. 0

LOOP POWERED DISPLAY

Display for the EVOMINI series temperature transmitters

4 digit display designed to be connected to the evomini series loop powered temperature transmitters; it requires no auxiliary power and is supplied directly from the measured current. The measured values are scalable and the programmation is done by the 3 integrated buttons key. The display has a compact, standardized design and it fits into a standard 22.5mm borehole for signal lamps.

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Technical Specifications

Power supply
From current loop
Signal
4 ÷20 mA
PCB input range
3,8 ÷22,5 mA (guaranteed up from 3.2 to 25 mA)
Voltage drop (I=20mA)
≤ 7 V
Input resistance
≤ 200 Ω
Accuracy (*)
(*) @25°C
0,2 % fsv + 1 digit
Type of display
4 digit (segment red), height 14 mm
Input signal sampling
1 sample/second
Protection class
III
International protection marking (*)
(*) According to IEC 60529
Front panel IP65
Rear IP20
Dimensions
48 mm x 26 mm x 65 mm
Weight
about 30 gr
Operating and storage conditions
Operating temperature: -30 ÷ 70°C
Storage temperature: -40 ÷ 80°C
Humidity: >80% (non condensing)
Other characteristics
3 keys for the programmation
Password protection to prevent unauthorised changes of settings
Display alarm for values outside the specified range (Hi, Lo)
Calculation of the square root
Damping of the measured signal (filter time programmable)