Instructions for Use
ComPass B 4023841-001
Measuring the values in a medium-voltage system3.2.
The ComPass B permanently senses the voltage, current and frequency values and performs cal-
culated measurements of P, Q, S and cos φ in medium-voltage distribution networks. It also calcu-
lates the mean values (Ø15 min) and the maximum values (24 h/7 days/365 days, slave pointer).
All values can be read locally on the OLED display or transmitted by remote signals via the RS485/
MODBUS interface.
Operator control3.3.
Front panel3.3.1.
ComPass B can be controlled completely from the front panel which consists of the elements
shown in the gure below.
Front panel control of ComPass BFigure 16:
OLED display•
4x21 alphanumerical characters.•
Multilingual plain text menus (German/English/Dutch/Portuguese).•
Multicolour LED•
Green/Yellow/Red.•
Rocker switch (4 directions)•
Activation of OLED display.•
Navigation through plain text menus.•
Display illumination
In normal operation mode, the display on the front panel is switched off. It is illuminated once the
rocker switch is used (press to any direction). If the rocker switch is not used for 60 seconds, the
display illumination is turned off.
Multicolour LED
The multicolour LEDs signal different operating conditions of the ComPass B (see Table 1). In par-
ticular when the OLED display is not illuminated, the LED gives advanced information that can be
investigated in more detail by the user via the OLED display.
OLED Display
Multicolour LED
Rocker switch
10
Dipl.-Ing. H. Horstmann GmbH
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