AMETEK SLH Series RevB - Manual (Page 42)

Operation SLH-Series AC High Power Electronic Load
3-16 M540073-01 Rev C
flashes the protection status, indicating which protection function is active. These
functions are described below:
3.6.1 Over Voltage
The over voltage protection (OVP) point is preset in the SLH-series High Power
AC/DC Electronic load. Table 3- shows the OVP trip values for the various models in
the series. When OVP occurs, the lower digital meter (DM) flashes "oVP". Once the
over voltage condition is reset, the lower DM resumes normal display.
Model OVP OCP OPP
SLH-500-4-1200 525.0 V 4.20 A 1260 VA
SLH-500-6-1800 525.0 V 6.30 A 1890 VA
SLH-300-12-1200 315.0 V 12.60 A 1260 VA
SLH-300-12-1800 315.0 V 12.60 A 1890 VA
SLH-300-18-1800 315.0 V 18.90 A 1890 VA
Table 3-3 SLH AC-series Protection Setting Values
3.6.2 Over Current
The over current protection (OCP) point is preset in the SLH-series High Power
AC/DC Electronic load. Table 3- shows the OCP trip values for the various models
in the series. When OCP occurs, the lower digital meter (DM) flashes "oCP". Once
the over current condition is reset, the lower DM resumes normal display.
3.6.3 Over Power
The over power protection (OPP) point is preset in the SLH-series High Power
AC/DC Electronic load. Table 3- shows the OPP trip values for the various models in
the series. When OPP occurs, the lower digital meter (DM) flashes "oPP". Once the
over power condition is reset, the lower DM resumes normal display.
3.6.4 Over Temperature
SLH-series High Power AC/DC Electronic load is provided with a temperature
sensor. Over temperature protection (OTP) is tripped when the heat dissipater
temperature exceeds about 85 ±5 , and the lower DM flashes “oTP”. Once the
over temperature condition is reset, the lower DM resumes normal display.
When OTP occurs, check the ambient working temperature and ventilation. The air
outlet on requires a distance of greater than 6 in / 15 cm from any obstruction, for
proper ventilation.