User Manual

38SW

Getting Started Manual

Detailed Steps

1. Connect the Model 38XR DMM to the PC using the optically isolated serial cable provided. Not all

serial cables are alike in wiring and pin out, so we recommend using only the supplied cable with

the 38SW.

2. At the 38XR DMM, rotate the range switch to the desired parameter and range for the

measurement. Some functions are autoranging while others require a range selection or AC/DC

selection. See the General Instructions for complete details on each function and precautions.

3. Connect the test leads to the circuit/component to be tested and note LCD reading. Make any

range or connection adjustments necessary to obtain the best reading and resolution using the

meter RANGE button.

4. Press the RS232 menu button to activate the serial port output. For extended recording periods,

the Auto Power Off feature may be disabled. See Auto Power Off section of the Users Manual.

5. At the PC, open the 38SW application by double-clicking on the icon in the Meterman directory or

file folder.

6. With the application open, select the Set Up menu then “Communications” command to open the

serial port setup sub-window and to initialize the serial port.

7. Make the following selections in the serial port sub-window:

COM Port - Select the COM port (1 or 2) at which serial port the meter’s serial cable is physically

connected. If an error message is received that the “Selected Serial Port is currently in use” select

another port. This may require changing the serial cable connection at the PC to match your