This is the instruction manual for the Extech 380942 True RMS AC/DC 30A Mini Clamp-on Meter. It can measure AC current and voltage, and has a high resolution of 0.1mA AC and 1mA DC for low current measurements. It also has auto power off, one-touch DCA zero adjust, MIN/MAX and data hold functions.
The Extech Model 380942 is a True RMS AC/DC 30A Mini Clamp-on Meter designed for measuring low current with high resolution. It features a Hall effect sensor, one-touch DCA zero adjust, and MIN/MAX and Data Hold functions. The device operates on two 1.5V AA batteries and includes an LCD display with a 40 segment bargraph.
| Display | 3-3/4 digit (4000 count) LCD with 40 segment bargraph |
|---|---|
| Current sensor type | Hall effect sensor type |
| Battery | Two 1.5V AA batteries |
| Operating conditions | 4 o F to 122 o F (-10 o C to 50 o C) |
| Weight | 6.2 oz. (190g) including battery |
| Jaw opening | 0.9" (23mm) |
| Standards | IEC 1010 Category III 300V, Category II 600V |
The jaw diameter is 0.9" (23mm).
The meter will auto power off after 30 minutes of operation.
The meter requires two 1.5V AA batteries.