info map

PLH Series DC Power Supplies: Precision Metering

PLH250 display

PLH250 display with settings

Precision Metering - clear and unambiguous "at a glance"

High accuracy, four digit, fixed-resolution meters

The PLH series uses four digit meters for both voltage and current.

The fixed resolution ensures that there are no sudden and confusing changes in the reading. Some other power supplies use 3 digit meters which autorange at 1999 counts.

Not only does this reduce resolution, but it also changes the position of the most significant digit. When glancing at the display this could lead to mis-reading of the value by a factor of ten.

Improved low current control and metering

In response to the increasing use of low power circuitry, the PLH Series incorporates a low current range. This provides metering with 0.01mA resolution and enables lower currents to be set with more precision.

Meter averaging function

The PLH incorporates a meter averaging function which reduces the display cycling when working with rapidly varying load currents.