Ambient Conditions; Programming The Transducer; Operation Of The Binary Outputs - Camille Bauer EURAX DME 424 Betriebsanleitung

Ambient conditions

Nominal range of use
for temperature: 0...15...30...45 °C
(usage group II)
Operating temperature: – 10 to + 55 °C
Storage temperature: – 40 to + 85 °C
Annual mean
≤ 75%
relative humidity:
Altitude: 2000 m max.
Indoor use statement!

5.2 Programming the transducer

The transducers EURAX DME 424/442 have an integrated
RS 232 C interface (SCI).
The existing programmation can be matched conveniently
to a changed situation and stored via the "Programmation
software for EURAX DME 4" (Order number 146 557).
For this purpose, the RS 232 output of the transducer must
be connected to a PC via the RS 232 C (SCI) programming
cable (Order number 980 179) and the transducer must be
supplied with power supply.
The programming software has an easy-to-operate, clear
menu structure which allows for the following functions to
be performed:
• Reading and displaying the programmed configuration of
the transducer
• Clear presentation of the input and output parameters
• Transmission of changed programmation data to the
transducer and for archiving of a file
• Protection against unauthorized change of the program-
mation by entry of a password
• Configuration of all the usual methods of connection (types
of power system)
• Easy change of input and output parameters
Fig. 7. Presentation of all programmation parameters in the main
menu.
• Selection possibility for frequency measurement via voltage
or current
• Possibility to reset the slave pointer of the output quantity
involved
36
• Parameter setting of outputs A and B resp. A to D (input
of measured quantity, upper limits, limitation of upper
limits and response time per output)
• Graphics display of the set system behaviour of each
output
• Recording of measured variables
Fig. 8. Programming of the output quantities.
• Definition of the digital outputs G and H respectively E to
H, either to produce an output impulse (counter impulse)
for measuring Ah, Wh, Varh and VAh or to monitor a limit.
2 limit monitor outputs (G and H) permit up to 3 measure-
ments each to be logically interlocked.
Fig. 9. Assignment of limits to outputs E to H.
Provision is also made for the following ancillary functions:
• The power system check
• Provision for displaying the measured variably on a PC
monitor
• The simulation of the outputs for test purposes
• Printing of nameplates

5.3 Operation of the binary outputs

The binary outputs are electrically isolated from all other
circuits via an optocoupler.
They therefore require an additional power supply to energise
the output circuits.