4
Safety Instructions
Preface
Many thanks for buying our digital indicator Model A-RB-1.
This operating manual includes instructions for the operation of the
digital indicator and information on its functionality. Read these operat-
ing instructions thoroughly prior to starting up the digital indicator. In
order to avoid any damage or injuries that might be caused by any non-
observance of the appropriate regulations, please ensure that the person
operating this digital indicator receives these operating instructions.
The appropriate national safety regulations (e.g. VDE 0100) must be
observed when mounting, starting up and operating these displays.
Serious injuries and/or damage can occur should the appropriate
regulations not be observed. Only appropriately qualified persons should
work on these instruments.
1. General
The digital indicators A-RB-1 are precision instruments for the measure-
ment of current and voltage signals of pressure or other transmitters.
The instruments are normally DIN-Size panel mounting (96 x 48 x 190
mm) per IEC 61 554.
Indication is made via a 3 1/2 -digit LED display, covering a range from
-1999 to +1999 digits. The actual span to be indicated can be easily
programmed anywhere within this range. The same applies to decimal
point, signal input, analogue output damping and baud rate of the data
interface. All programming can be made while the instrument is
operative.
This versatility is achieved by means of a powerful microprocessor,
which also controls all other functions.
An inbuilt isolated transformer provides power supply of DC 24 V max.
30 mA to energise transmitters connected.
Analogue output of 0 … 10 V, 0 … 20 or 4 … 20 mA, adjustable
damping, as well as HOLD memory and MIN and MAX memory are serial
standard.
