AMETEK SLH Series RevC - Manual (Page 29)

Sorensen SLH-Series DC High Power Electronic Load Installation
The 50/60 Hz power line frequency setting switches located at the right hand side of second
layer PCB (P/N: 65200271) when open the right hand side Alumina plate of the SLH-series
high power load.
The factory setting of power line frequency depends on the purchasing area of your country,
and the power line frequency is indicated on the top cover of the load.
In the case of changing power line frequency, from 50Hz to 60Hz, or from 60Hz to 50Hz,
please follow the following procedures:
1. Please follow the removal procedure (SECTION 2) to remove the right hand side
Alumina plate of SLH-series high power load .
2. On the upper and lower of the right hand side of the Electronic Load, the are three
screws respectively. Please remove those screws and remove the Alumina plate as
well. (see Fig 2-4)
3. 50Hz power line frequency setting: set switch 1 to "OFF" position and switch 2 to
"ON" position. 60HZ power line frequency setting: set switch 1 to "ON" position and
switch 2 to "OFF" position.
4. After setting the power line frequency, please follow the reverse procedure to re-
install the SLH-series high power load.
2.3 MAINTENANCE
2.3.1 Cleaning
WARNING :
To avoid electrical shock or damage to the meter, do not get water inside the case.
Periodically wipe the case with a damp cloth and detergent; do not use abrasives or solvents.
M540074-01 Rev C 2-5