AMETEK SLM Series RevC - Manual (Page 22)

Introduction, Features, Specifications Sorensen SLM-Series DC Load
1-10 M540071-01 Rev C
The Constant Current (CC), Constant Resistance (CR), Constant Voltage (CV) and Constant Power
(CP) control and the Range circuitry are selected depending upon which operating mode and range are
programmed. The drive circuit controls the load current flow through power MOSFET, which is
proportional to the analog control signal. The load power energy is converted to heat and is dissipated
on the heat sink.
The voltage sensing circuit selects the load input terminal or V-sense BNC input, depending on the
V-sense setting.
The current sense amplifier feeds the load current signal to16-bit DAM, which feeds the 5-digit LED
display and isolated amplifier (I-Monitor BNC output).
The Auto-ranged 16-bit high accuracy digit voltage meter feeds the input voltage to the 5-digit LED
display. The 16-bit voltage and current meter digital bus is connected to CPU circuitry. Each load
module can transfer the meter readings to SLM mainframe through isolated serial circuitry.