Bench Test Instruments and Handheld Oscilloscopes Basic Service
1
THM500 Series Instruments
The Tektronix THM500 Series instruments combine the features of a complete
digital multimeter (DMM) with the power of an oscilloscope, all in a single
package.
The DMM portion of these instruments measure true RMS AC and DC voltage,
resistance, continuity with audible mode, and a diode test.
The DMM portion also includes the following features:
H
A hold feature to freeze the display
H
MIN and MAX readouts to track instantaneous signal variations from the
last held value (
D
Hold)
H
AC and DC current measurement with optional current probe
The oscilloscope portion of the instruments feature an autoranging mode that
completely automates operation. In this mode, a usable signal is always
displayed without operator intervention. If desired, you can switch to manual
mode by selecting any control. In manual mode, you can specify general
oscilloscope operations such as coupling, triggering, and acquisition modes.
THM550, THM560, and THM565 models include preconfigured modes to set up
the oscilloscope for motor testing, transformer THDF measurement, power line
monitoring, and power measurement. The THM57x series instruments include
preconfigured automotive test setups.
Figure 1: THM500 series instrument
