This file is the instruction manual for Greenlee DM-20 Digital Multimeter
This manual introduces safe operation and maintenance of the Greenlee DM-20 Digital Multimeter, covering essential safety alerts, proper handling, and user responsibilities. It includes detailed safety symbols, hazard classifications, and instructions for battery and fuse replacement.
The document also describes the meter’s measurement capabilities—voltage, current, resistance, continuity, diode testing, and battery testing—along with technical specifications such as display type, accuracy, input impedance, and operating conditions. Typical measurement procedures and accuracy tables help users obtain reliable readings.
| Display | 3-1/2‑digit LCD (1999 maximum count) |
|---|---|
| Battery type | 9‑Volt battery (NEDA 1604, JIS 006P or IEC 6F22) |
| Measurement Category | Category II, 300 V |
| Operating temperature range | 0 °C to 40 °C (32 °F to 104 °F) |
It uses a 9‑Volt battery (NEDA 1604, JIS 006P or IEC 6F22).
Disconnect the unit, turn it off, remove the back cover screws, replace the battery observing polarity and the fuse, then reassemble the cover and screws.