4-Input Summing Amplifier
in Top Hat Rail-Case
for all electrical measuring applications
Characteristics
•
4 analog inputs 0(4) - 20 mA, 0 - 10 V
selectable by DIP-Switches
•
Adding of input signals
•
1 configuable analog output
0(4) - 20 mA; 0 - 10 V
selectable by DIP-switches
•
Accuracy ± 0,1 % of end scale value
•
Supply voltage 115/230 VAC
optionally 24 VAC/VDC
•
2-wire transmitters can be
supplied directly by the device
Description
is designed for use in all
Thanks to the top hat railin existing switch cabinet
t
i
o
n
s
.
1
Its range of use is for all industrial applications where up to 4 analog
signals have to be added to one signal, for example in connection
with resistance strain gauge amplifiers like ALM or DLM-Systems,
when several analog signals of DC-Sensors shall display a total
load. Here, the inputs may have different signals. The ZERO and
GAIN trimmers for every input are, as well as the DIP-switches for
inputs and output, accessable without the need of opening the device by openings in the side respectively in the bottom of the case.
2
3
4
5
6
7
NO
8
COM
ERROR
9
+
10
-
OUTPUT
78 mm
The 4-input analog summing amplifier
appications for electrical measurement.
case, it is very simple to integrate it
i
n
s
t
a
l
l
a
ASV - System
Analog - Summierverstärker - System
INPUT
SUPPLY
(L1 / +)
11
(N / -)
12
E1
13
GND
14
E2
15
(+)
16
E3
GND
18
E4
19
(+)
20
If an input signal 4 - 20 mA generated by a 2-wire transmitter shall
be measured, the transmitter can be supplied directly by the device
by using terminal 16 and/or 20 (+15 V) without the need of an
external power supply.
.
100 mm
ASV1E.CDR
Technical Data
Inputs
Outputs
Input:
max. 4 analog inputs
0 (4) - 20 mA; 0 - 10 V
Input Selection:
by DIP-switches
Adjustment:
by internal trimmers
(access from outside possible)
Zero and Gain per input
adjustable seperately
Current Output:
Voltage Output:
Output Selection:
Accuracy
Power Supply
Ambient Conditions
Dimensions
ASV2E.CDR
1 x summation output
0 (4) - 20 mA
1 x summation output
0 - 10 V
by DIP-switches
Linearity Error:
< 0,02 % of measured value
Temperature Coeff.:
< 50 ppm/°C
Supply Voltage:
115/230 VAC, 24 VAC/DC, 24 VDC electrically isolated
Power Consumption:
approx. 5 VA
Operating Temperature:
-10°C - 60°C
Storing Temperature:
-20°C - 70°C
Case:
20-terminal top hat rail-case with
terminal cover plate according to DIN
Dimensions:
78 x 100 x 114 mm (including terminal cover plate)
Fixing:
snap-in fixing on top hat rail
Case Material:
Polycarbonate / GV / V-0 (terminal carrier plate)
ABS / V-0 (hood)
Color:
grey
Weight:
approx. 0,6 kg
Connection:
20 flat terminals with terminal screws
and self-lifting terminal plates M 3,5
2
up to 2 x 2,5 mm
Operating, Adjustment hints
1
2
3
4
5
6
7
NO
Error
relay threshold
Relay
SW1
Power
Supply
9
+
10
-
OUTPUT
ASV - System
Analoges - Summierverstärker - System
INPUT
SUPPLY
SW2
(L1 / +)
11
Lower PCB
8
COM
ERROR
(N / -)
12
E1
13
GND
14
E2
15
(+)
16
E3
GND
18
E4
19
(+)
20
Upper PCB
Adjustment
1. Connect supply voltage
2. Select desired inputs by DIP-switches.
SW 1
SW 2
on
Z
G
E1
Z
Bottom opening
off off
off
1
2
3
4
5
6
7
8
on on
1
2
3
4
5
6
7
8
off
off
on
on
G
E2
E1
E2
E4
E3
NC
1
2
3
off
off
on
on
1
off
off
on
on
3
2
off
1
2
3
0 - 20 mA
4 - 20 mA
0 - 10 V
E1
E1
E1
A
on
G
Z
E3
Z
G
E4
3. Fine adjustment of the single signals (input 1 - 4) by trimmers Zero and Gain. (Every single input signal is measured at
the output. The value at the corresponding input is given to the output with 1:1 - ratio.)
This process has to be done for every input.
All devices are adjusted by factory for 4 x input 0 - 20 mA and output 0 - 20 mA.
4. Select desired output by DIP-switches:
SW1
SW2
off
off off
on
on on
1
2
3
4
5
6
7
8
off
off
on
on
6
7
8
off
off
on
on
6
7
8
off
off
on
on
off
6
7
8
0 - 20 mA
4 - 20 mA
0 - 10 V
A
A
A
on
5. Every input in use has to be connected to its "Zero"-Signal (by calibrator or by admitting the corresponding physical value to the
connected sensor). Check the Zero value of output signal.
6. Connect every input in use to its single rating signal (by calibrator or by admitting the corresponding physical value to the connected
sensor). Check the end scale value of output signal. If gain corrections are necessary, adjust the corresponding internal trimmer
"Gain" until the rating signal is reached.
7. Connect the "Zero"-signals to the inputs again and check the output signal. For the ranges 0 - 20 mA, 4 - 20 mA and 0 - 10 V, it
might be necessary to repeat 5 and 6 several times until both adjustments are correct.
8. Switch 5 of the right switch block (SW2) has no function.
ASV3E.CDR
Ordering key
S
U
X
X
X
X
X
X
XXX
No.
4 x analog
input
1 x analog
output
Supply
Measuring
0
0 - 20 mA
0 - 20 mA
230 VAC
without
1
4 -20 mA
4 - 20 mA
115 VAC
2
0 - 10 VDC
0 - 10 VDC
24 VAC/DC
3
ASV4E.CDR
24 VDC
electr. isolated
Subject to change, as of 06/98