Gossen MetraWatt SSP 120 Series, Operating Instructions Manual

Page: 10 / 92

10 GMC-I Messtechnik GmbH
1.5.3 Electrical Data
Electrical Data for 120 W Models

Unless otherwise specified, all entries are maximum values and apply within an operating
temperature range of 0 to 50

C, within the nominal power range and the nominal line
voltage range of 230 V

10% after a warm-up period of 30 minutes.

Percentages make reference to the respective setting value or measured value.
1)
Specified values are increased by a factor of approximately 1.2 within the functional range for line voltage, namely -10% to -15%.
Description (abbreviated name) SSP 120-20 SSP 120-40 SSP 120-80
Type 32 N 20 RU 10 P 32 N 40 RU 6 P 32 N 80 RU 3 P
Nominal Output Data Voltage setting range 0 ... 20 V 0 ... 40 V 0 ... 80 V
Current setting range 0 ... 10 A 0 ... 6 A 0 ... 3 A
Continuous power at Tu

40° C max. 120 W max. 120 W max. 120 W
Short-term power where t < 90 s / Tu

25° C max. 200 W max. 240 W max. 240 W
Current derating where Tu > 40° C -0.25 A / K -0.15 A / K -0.07 A / K
Output Characteristics
Setting resolution
[display (< 10.00 /

10.00), remote]
Voltage
Current
5 mV / 10 mV, 5 mV
2.5 mA
10 mV
2 mA
20 mV
1 mA
Overall setting accuracy at 23 ± 5° C
including system deviation (load / mains) Voltage
Current
0.15% +30 mV
0.4% +35 mA
0.15% +40 mV
0.5% +20 mA
0.15% +80 mV
0.5% +10 mA
Static system deviation
1)
with 100% load fluctuation
1
Voltage
Current
15 mV
20 mA 10 mV
10 mA 10 mV
10 mA
Static system deviation
1)
with 10% line voltage fluctuation
1
Voltage
Current
5 mV
8 mA 5 mV
5 mA 5 mV
5 mA
Residual ripple
1)
Ua > 5% U
nom
Voltage (10 Hz ... 10 MHz)
Current (10 Hz ... 1 MHz)
10 mV
eff
25 mA
eff
10 mV
eff
20 mA
eff
10 mV
eff
10 mA
eff
Common mode noise (10 Hz ... 1 MHz) 0.5 mA
eff
0.5 mA
eff
0.5 mA
eff
Settling time (voltage)
with load step of 10 ... 90% I
nom
Tolerance
(Typical values)

I = 80%
40 mV
200

s
80 mV
200

s
160 mV
200

s
Under and overshooting with load step of 50 A / ms (Typical values)

I = 80% 400 mV 400 mV 800 mV
Response time (voltage)
with setpoint jump from 0

100%
with setpoint jump from 100%

0
Tolerance
No-load / nominal load
No-load / nominal load
40 mV
1 ms / 1 ms
1 ms / 1 ms
80 mV
1 ms / 1 ms
1 ms / 1 ms
160 mV
4 ms / 4 ms
4 ms / 4 ms
Response time (current)
with setpoint jump from 0

100%
with setpoint jump from 100%

0
Tolerance
short-circuit / nominal load
short-circuit / nominal load
100 mA
< 5 ms / < 5 ms
< 5 ms / < 5 ms
60 mA
< 5 ms / < 5 ms
< 5 ms / < 5 ms
30 mA
< 10 ms / < 10 ms
< 10 ms / < 10 ms
Measured Value Displays (4-place)
Measuring resolution
[display (< 10.00 /

10.00), query]
Voltage
Current
Power
2 mV / 10 mV, 2 mV
1 mA, 1 mA
0.1 W, 0.1 W
10 mV, 4 mV
0.6 mA, 1 mA
0.1 W, 0.1 W
10 mV, 8 mV
0.5 mA, 1 mA
0.1 W, 0.1 W
Measuring accuracy at 23 ± 5° C
for values > 0.1% of the nominal value Voltage
Current
Power
0.15% + 30 mV
0.4% + 25 mA
0.55% + 0.5 W
0.15% + 40 mV
0.5% + 15 mA
0.65% + 0.6 W
0.15% + 80 mV
0.5% + 10 mA
0.65% + 0.8 W
Protective Functions
Output overvoltage protection, trigger value Setting Range
Setting resolution
Setting accuracy
0 ... 25 V
0.1 V
2% + 0.2 V
0 ... 50 V
0.2 V
2% + 0.4 V
0 ... 100 V
0.4 V
2% + 0.8 V
Reverse polarity protection load capacity Continuous 10 A 6 A 3 A
Reverse voltage withstand capacity Continuous 40 V 80 V 100 V
General
Power supply
1)
Line voltage 230 V~ +10 /

15%
47 ... 63 Hz
230 V~ +10 /

15%
47 ... 63 Hz
230 V~ +10 /

15%
47 ... 63 Hz
Power consumption At nominal load
In standby mode
With maximum short-term power
280 VA, 180 W
45 VA, 15 W
450 VA
280 VA, 170 W
45 VA, 15 W
500 VA
280 VA, 170 W
45 VA, 15 W
500 VA
Efficiency At nominal load > 70% > 80% > 80%
Switching frequency Typical 200 kHz 200 kHz 200 kHz
Article Number K320A K321A K322A