AMETEK SLM Series RevC - Manual (Page 48)

Operation Sorensen SLM-Series DC Load
3-20 M540071-01 Rev C
Over Temperature (OTP)
• SLM-series DC electronic loads are equipped with a temperature sensor(s). When any
module's heat sink rises to a temperature greater than 85
°C, the OTP circuit trips. The
lower 5-digit monitor on the front panel flashes “otP”. The load will automatically go to a
LOAD OFF state.
• Once in OTP condition, please check environmental condition such as the ambient
temperature and the distance between the Electronic load mainframe’s rear panel and
wall, which should be greater than 6in. / 15cm.
• Normal operation may be resumed once the temperature falls below maximum.
Reverse Polarity
• The SLM-series DC electronic load conducts reverse current when the polarity of the DC
source connection is incorrect. The maximum reverse current is the same as the
maximum forward current.
WARNING: If the reverse current exceeds the current rating, it may cause
damage to the SLM-series DC electronic Load.
• When reverse polarity occurs, the reverse current value (negative reading) is displayed on
the 5-digit monitor on the front panel; turn OFF power to the DC source and make the
correct connections.
Model OVP OCP OPP OTP
SLM-60-15-75 63V 15.75A 79W 85 °C
SLM-60-30-150 63V 31.5A 158W 85 °C
SLM-60-60-300 63V 63A 315W 85 °C
SLM-250-10-300 263V 10.5A 315W 85 °C
SLM-500-10-300 525V 10.5A 315W 85 °C
Table 3-3 Summary of Over Protection Values