ii
Contents
3.10 Measuring Temperatures (DT4212)..............43
4 Using Instrument Conveniently 45
4.1 Selecting the Measurement Range ..............45
Measuring with the auto range .................................45
Measuring with the manual range .............................45
4.2 Retaining the Measured Value .....................46
Retaining the measured value (HOLD) .....................46
4.3 Checking the Relative Value/Performing
Zero Adjustment ............................................47
Checking the relative value (REL) ............................47
Performing zero adjustment ......................................48
4.4 Turning On the Backlight ..............................49
4.5 Using the Auto Power Save (APS) ...............49
5 Specifi cations 51
5.1 General Specifi cations .................................51
5.2 Electrical Characteristics .............................53
5.3 Accuracy Table ..............................................55
6 Maintenance and Service 63
6.1 Repair
Inspection
and Cleaning .................63
6.2 Troubleshooting ............................................64
6.3 Replacing Fuses ............................................67
Appendix Appx.1
Appx. 1 RMS and Average .............................Appx.1