The THPS-400 is Hastings Instruments’ newest power supply. This digital 4-channel instrument replaces the old analogue version of the Model 400 and 200 but maintains the half-rack profile for simple drop-in replacement of older units. The new THPS-400 incorporates, as standard, features that were optional or non-existent on the previous
models. Features such as:

Integrated totaliser with count-up or countdown options,

User selected filtering of readings,

RS-232, RS-485 or Ethernet,

Simultaneous display of all four channels or selective blanking of unused channels,

Ratio control with analogue outputs for stacking multiple power supplies,

Easy-to-follow, menu-driven calibration and setup,

All metal enclosure and A bright vacuum fluorescent display,

The digital design of the THPS-400 allows the user to set both the minimum and maximum display values corresponding to specific voltage or current inputs. One advantage of this approach is that it negates the need to access hard to reach transducers to re-zero them. Should the analogue signal from the transducer change due to zero shift, the digital counts seen by the THPS-400 can be changed to display zero either manually from the front panel or via serial communication with the unit. This should be especially attractive to OEM manufacturers.