
58 GOSSEN Mueller & Weigert
Electrodynamic Ratio Element,
Narrow Bezel per DIN 43718, Dull Black
Front Dimensions 96 x 96 mm 144 x 144 mm
Type SY 96 SY 144
Weight in kg, Approx. 1.0 1.1
Nominal Frequency 50 Hz 50 Hz
Intrinsic Consumption (at 100 V, 50 Hz)
– Mains Side
Active Component approx. 4.5 W approx. 4.5 W
Reactive Component approx. 4.2 var cap. approx. 4.2 var cap.
– Generator Side
Active Component approx. 4 W approx. 4 W
Reactive Component approx. 0.2 var ind. approx. 0.2 var ind.
Nominal Insulation Voltage 660 V 660 V
Test Voltage 2 kV 2 kV
Front Housing-Panel Protection IP 52 IP 52
Fasteners type B (DIN 43835) type B (DIN 43835)
Housing Material sheet metal sheet metal
Type SY 96
Synchronoscopes
for Varying and Steady Load 3-Phase Current
Technical Data
Description
Analog Panel Meter with Electrodynamic Ratio Elements and Rotating Pointer
Reference Conditions
Nominal range Of Use Limits
Dimensions for Separate Series Resistors
102
±0.2
x 78
±0.4
x 59.5
±0.5
(W / D/ H)
Dimensional Drawing no. 1402 A40a (available upon request)
Dimensions
Display
Scale Labelling Red arrow identified with “+” and black arrow with “–”
Pointer Beam pointer
Synchronoscopes
Synchronoscopes are circular scales with iron-free electrodynamic ratio elements. The
scale has an indicator mark, as well as a red arrow identified with “+” and a black
arrow identified with “–”. The pointer is capable of rotating in both directions. It only
points to the indicator mark if frequency and phase sequence are identical for both
electrical circuits. If the pointer comes to rest at any other point, the frequencies may
be identical but the voltages are not in phase. The direction of movement of the pointer
varies depending upon how the circuit and the generator are connected to the
synchronoscope (pointer can be made to move clockwise or counterclockwise for
higher generator frequency).
Mechanical Design
Housing Material Sheet metal housing
Terminals M3 for size 96 x 96 mm
M4 for size 144 x 144 mm
Contact Protection Available as option
Reference Quantities Reference Condition
Ambient Temperature 23 °C ±2°C
Position of Use control panel vertical ± 1°
Input Voltage rated voltage range
Frequency nominal frequency (see meas. movement variants) ± 0.2%
Other DIN EN 60051
Frequency nom. frequency 50 Hz: 48.5 ... 51.5 Hz
60 Hz: 58.5 ... 61.5 Hz
16
2
/
3
Hz: 16
1
/
3
... 17 Hz
e
f
a
1
x a
2
l
1
x l
2
h
t
23.5
2)
17.5
1)
1) Individual contact protection only possible with 144 x 144 mm front dimensions
2) Full contact protection only available with 96 x 96 mm front dimensions and with separate series resistor
Front Dim. in mm Nominal Dimensions, mm Cutout, mm Installation Depth Terminals Attachment from Rear
a
1
x a
2
h
I
1
x I
2
t e f
96 x 96 96 x 96 5 92
+0.8
x 92
+0.8
97.5 6 (M3) 58
144 x 144 144 x 144 8 138
+1
x 138
+1
95 12.5 (M4) 58
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