VEGA DIS371Ex User Manual
8888
Operating Instruction
VEGADIS 371 Ex
16.85
VEGADIS 371 Ex
Contents
Safety information ........................................................................................ 2
1 Product description
1.1 Function and configuration ................................................................. 3
1.2 Types and versions ............................................................................. 3
1.4 Dimensions ......................................................................................... 3
1.3 Approvals ............................................................................................ 3
1.5 Technical data ..................................................................................... 4
2 Mounting
2.1 Mounting instructions .......................................................................... 5
3 Electrical connection
3.1 Sensor connection .............................................................................. 6
3.2 Sensor connection Ex-area ................................................................ 7
3.3 Terminal coordination .......................................................................... 8
3.4 Ex-separating chamber ....................................................................... 8
4 Set-up
4.1 Indicating and adjustment elements ................................................... 9
4.2 Adjustment ........................................................................................ 11
4.3 Mounting of the relay modules .......................................................... 14
4.4 Reset ................................................................................................. 15
Contents
5 Diagnosis
5.1 Simulation ......................................................................................... 16
5.2 Fault signals ...................................................................................... 16
Safety information
The described module must only be installed and
operated as described in this operating instruction.
Please note that other action can cause damage for which
VEGA does not take responsibility.
2 VEGADIS 371 Ex
Product description
1 Product description
1.1 Function and configuration
VEGADIS 371 Ex is a digital indicating instrument with
integral level switches and current output for panel,
surface or rail mounting with LC-display for digital and
quasianalogue demonstration.
Max. 4 relays in pairs can be used as relay modules.
The modules can be retrofitted. VEGADIS 371 Ex is
an indicating instrument and can hence not be
adjusted.
The indication is individually scalable between -9999
and 9999. The decimal point can be shifted. The
indicated unit can be chosen individually. You can add
a lable with the units to the cover.
Configuration
Any sensor can be connected to the meas. circuit of
VEGADIS 371 Ex delivering a standardized
4 … 20 mA-signal or a 0 … 10 V-signal.
1.2 Types and versions
VEGADIS 371
Digital indicating instrument with integral level switches
for front panel mounting or surface mounting.
VEGADIS 371 Ex
Digital indicating instrument with integral level switches
for front panel mounting or surface mounting with Exapproval.
1.3 Approvals
VEGADIS 371 Ex (appropriate apparatus) is available
with the following approval:
Explosion protection
- Classification
II 1G [EEx ia] IIC EC-type approval
TÜV 97 ATEX 1174,
-
Conformity certificate
PTB no. Ex-97.D.2073 X.
For these applications note the appropriate legal
documents (EC-type approval and conformity
certificate). These are supplied with the instrument.
VEGADIS 371 EX
Ex-relevant technical data are stated in the following
attached documents:
EC-type approval TÜV 97 ATEX 1174
Conformity certificate PTB no. Ex-97.D.2073 X
CE-conformity
VEGADIS 371 Ex meets the protective regulations of
EMVG (89/336/EWG) and NSR (72/23/EWG). The
conformity has been judged acc. to the following
standards:
EMVG Emission EN 50 081 - 1:
1992
Susceptibility EN 50 082 - 2: 1995
NSR EN 60 010 - 1: 1993
1.4 Dimensions
92
102
19
VEGADIS 371 Ex 3
69
2
109
96
16.85
VEGADIS 371 EX
96
1.5 Technical data
General
Series instrument for front panel or wall mounting or
Dimensions W = 96 mm, H = 104 mm, D = 90 mm
Weight approx. 400 g
Housing material plastic ABS/POM
Cross section area of conductor max. 2,5 mm
Ambient conditions
Permissible ambient temperature -20°C … +60°C
Storage and transport temperature -40°C … +85°C
Temperature error 0,01 %/K
Electrical protective measures
Protection class II
Overvoltage category II
Protection
- wall or carrier rail mounting IP 20
- front panel mounting IP 40
V oltage supply
Supply voltage 20 … 250 V AC/DC
Power consumption 4 W, 12,5 VA
Sensor input (floating)
Transmission analogue
Connection line to the sensor 2-wire
I
active
- sensor supply 25 … 15 V (range 4 ... 20 mA)
- shortcircuit limitation approx. 30 mA
I
passive
- inner resistance < 250 Ω (range 4 ... 20 mA)
U
- inner resistance > 100 kΩ (range 0 ... 10 V)
Current output 0/4 … 20 mA (signal circuit, floating)
Resolution 0,1 % (range 0/4 ... 20 mA)
max. load 500 Ω
Fault signal approx. 22 mA
Linearity error 0,1 %
Relay output
Number of relays 4 (2 modules with 2 relays each)
Turn-on voltage min. 10 mV
Switching current min. 10 μA
Breaking capacity max. 54 W DC, 500 VA AC
Indication of switching condition LED lights - relay energized
Digital indication
Zero point (4 mA or 0 V) -9999 … 9999
Final point (20 mA or 10 V) -9999 … 9999
Decimal point individually selectable
mounting on rail 35 x 7,5
2
max. 250 V AC, 250 V DC
max. 3 A AC, 1 A DC
LED off - relay deenergized
Product description
4 VEGADIS 371 Ex
Mounting
2 Mounting
2.1 Mounting instructions
VEGADIS 371Ex indicating instrument can be either
mounted directly to the wall with three screws, plugged
on carrier rail 35 x 7,5 acc. to DIN EN 50 022 or
lowered into a front panel. VEGADIS 371Ex must be
generally mounted outside hazardous areas.
Before mounting VEGADIS 371 you should adjust the
requested sensor signal (Ia, Ip, U). The slide switch on
the rear of VEGADIS 371 under the cover is no more
accessible after mounting the instrument.
Dependent on the application and the sensor you can
choose between active current measurement (Ia),
passive current measurement (Ip) or voltage
measurement (U). Factory setting "Ia“ see also
"4.2 Adjustment“. The position of the switch also
modifies the application conditions for Ex-instruments
(VEGADIS 371Ex). Note the type approval or the
conformity certificate of VEGADIS 371Ex.
Carrier rail mounting
• Place the adapter plate (A) to the rear of VEGADIS
371 (spring of the adapter plate to the bottom) and
tighten the plate with screw B (M4 x 6).
• Place VEGADIS 371 from the bottom to the carrier
rail (C) and push the instrument to the top until
snap-in.
Wall mounting
• Insert the metal sleeve (D) from top into the housing
cut-out.
• Fasten the instrument with three screws (ø max.
4 mm) directly to the wall.
D
105
80
* DG-hole on instrument
Cover
Ø4,5*
Front panel mounting
• Remove the two pluggable terminal boards (F) and
the terminal board (K) to the top.
• Screw the pin (H) to the rear of VEGADIS 371 and
tighten with a screwdriver.
• Insert VEGADIS 371 from the front into the front
panel (E).
• Push the terminal strap (G) from the back to the pin
(H) and pull with the knurled nut (I) against the front
panel (E).
BC
A
61
43,5
EF
~90
H
G
I
K
92
Front panel
cut-out
VEGADIS 371 Ex 5
3 Electrical connection
3.1 Sensor connection
Note
Switch off the voltage supply before starting
connection work.
Electrical connection
Active operation (Ia)
+-
Voltage
supply
Passive operation (Ip)
+-
1)
4 ... 20 mA
Sensor
1)
4 ... 20 mA
+
output
-
Sensor
Signal conditioning
instrument
VEGAMET
Voltage
supply
1) Active or passive operation selectable with slide switch.
See “4.1 Indicating and adjustment elements“
6 VEGADIS 371 Ex
Loading...