VEGA VEGASTAB 692 MD - Manual (Page 4)

4 VEGASTAB 692 MD
Product description
1 Product description
1.1 Function and configuration
VEGASTAB 692 MD is a power supply unit
for connection of up to 15 VEGA sensors
(HART
® two-wire sensors in Multidrop mode).
Function
VEGASTAB 692 MD provides a galvanically
separated supply circuit for up to 15 VEGA
sensors (HART
® two-wire loop-powered in
Multidrop mode). The power supply for the
sensors is 17 … 25 V DC depending on the
number of connected sensors. VEGASTAB
692 MD delivers up to 60 mA constant cur-
rent (15 sensors with 4 mA each) and is
open-circuit and short-circuit proof (current
limitation at approx. 200 mA). The instrument
has an RS 232 interface for communication
with the software Visual VEGA (VV) or VEGA
Visual Operating (VVO) via the
VEGACONNECT 3 interface adapter.
Configuration
VEGASTAB 692 MD is a module unit with
plug-in socket suitable for carrier rail mount-
ing EN 50022.
1.2 Scope of delivery
- VEGASTAB 692 MD
- Plug-in socket
- Coded pins, bonding jumpers
- VEGACONNECT 3
- Operating instructions VEGASTAB 692 MD
- Operating instructions VEGACONNECT 3
- Operating instructions remote parameter
adjustment
1.3 Ex area
This power supply unit is not approved for
use in Ex areas.
It must neither be installed in hazardous
areas nor be used for power supply of sen-
sors in these areas.
1.4 Features
- Power supply unit for up to 15 HART ® sen-
sors (two-wire loop-powered in Multidrop
mode).
- Digital transmission of measured values
(HART ® protocol, Multidrop mode).
- Input voltage range 20 … 250 V AC,
20 … 72 V DC.
- Galvanically separated and overload,
short-circuit or open-circuit proof circuit.
- Integrated HART ® resistance.
- RS 232 interface via VEGACONNECT 3 for
connection to a modem or PC.
- Communication with Visual VEGA (VV) and
VEGA Visual Operating (VVO).
1.5 Sensor choice
The following VEGA HART ® sensors can be
connected to the unit:
- VEGAPULS series 40 and VEGAPULS
series 50 radar sensors.
- VEGAFLEX series 50 sensors with guided
microwaves.
- VEGASON series 50 ultrasonic sensors
- Series D80 pressure transmitters and
VEGABAR 40
Make sure that only VEGA HART ® sensors in
two-wire loop-powered version (in Multidrop
mode) are used.
It is not possible to connect sensors of other
manufacturers.