2
Specifications are subject to change without notice
WM23-96DS 080806
WM23-96
Insulation
By means of optocouplers,
4000 VRMS output to
measuring input
4000 VRMS output to
supply input
RS422/RS485
(on request)
Multidrop
bidirectional (static and
dynamic variables)
Connections
2 or 4 wires, max. distance
1200m, termination directly
on the instrument
Addresses
255, selectable by key-pad
Protocol
MODBUS/JBUS (RTU)
Data (bidirectional)
Dynamic (reading only)
System and phase variables:
see table “display pages”
Static (writing only)
All the configuration parameters,
activation of the static output.
Data format
1 start bit, 8 data bit,
no parity, 1 stop bit
Baud-rate
9600 bauds
Insulation
By means of optocouplers,
4000 VRMS output to
measuring input
4000 VRMS output to
supply input
RS232
(on request)
bidirectional (static and
dynamic variables)
Connections
3 wires, max. distance 15m,
Data format
1 start bit, 8 data bit
Analogue Outputs
(on request)
Number of outputs
Up to 1 (+1 redundant)
Accuracy
±0.2% f.s.
(@ 25°C ±5°C, R.H.
≤60%)
Range
0 to 20 mADC,
0 to ±20 mADC
0 to ±10 mADC,
0 to ±5 mADC
0 to 10 VDC,
0 to ±10 VDC
0 to ±5 VDC
0 to ±1 VDC
Scaling factor:
Programmable within the
whole range of retransmis-
sion; it allows the retrans-
mission management of all
values from: 0 and 20 mADC,
Variables
See relevant list
Response time
≤ 900 ms typical
(filter excluded, FFT excluded)
Ripple
≤ 1%
acc. to IEC 60688-1, EN 60688-1
Total temperature drift
≤ 500 ppm/°C (input+out-
put)
Load:
20 mADC
≤ 600 Ω
±20 mADC
≤ 550 Ω
±10 mADC
≤ 1100 Ω
± 5 mADC
≤ 2200 Ω
10 VDC
≥ 10 kΩ
±10 VDC
≥ 10 kΩ
± 5 VDC
≥ 10 kΩ
± 1 VDC
≥ 10 kΩ
Number of analogue inputs
Current
3
Voltage
4
Digital Inputs
On request
AQ1038
Number of inputs: 3 ( voltage
free)
Use
Synchronization of the
W-VAdmd measurements
Input 1: lock of programming
Inputs 2 and 3: W-VA dmd
measurements synchronization
Reading voltage
24VDC/1mA
AQ1042
Number of inputs: 3 +
inputs power supply
Input frequency
Max 20Hz, dutycycle 50%
Output voltage
16V<+Aux<24VDC
Output current
Max 15mA
Open contact
resistance
Min 100k
Ω
Insulation
4000VRMS
Accuracy (display, RS232, RS485)
In=5A; Pn= In* Un
Un: F.S. range AV4-5-6-7
Current
±(0.5% In +2DGT)
Phase-neutral voltage
±(0.5% Un +2DGT)
Phase-phase voltage
±(1% Un +2DGT)
Frequency
±0.1Hz
Active power
(@ 25°C ± 5°C, R.H.
≤ 60%)
±(1% Pn +2DGT)
Reactive Power
(@ 25°C ± 5°C, R.H.
≤ 60%)
±(2% Pn +2DGT)
Apparent power
(@ 25°C ± 5°C, R.H.
≤ 60%)
±(1% Pn +2DGT)
Harmonic distortion
(@ 25°C ± 5°C, R.H.
≤ 60%)
±3% F.S. (up to 16th harmonic)
(F.S.: 100%)
Additional errors
Humidity
≤0.3%F.S.from 60%to90%H.R.
Temperature drift
≤ 200ppm/°C
Display
Back-lighted LCD 4x31/2 digit
70 x 38mm
Display refresh time
700ms
Measurements
Current, voltage, power, power
factor, frequency, harmonic
distortion. TRMS measure-
ment of a distorted wave.
Coupling type
Direct
Input impedance
208VLL 5(6)AAC (AV4):
>200 k
Ω
400VLL 5(6)AAC (AV5):
>900 k
Ω
100VLL 5(6)AAC (AV6):
>200 k
Ω
660VLL 5(6)AAC (AV7):
>900 k
Ω
Output Specifications
Input Specifications
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