This manual describes the use of the Extech Model 40180 Tone Generator and Amplifier Probe Set. The set can be used to quickly trace and identify cables or wires, as well as check the operation of phone lines.
The Extech Model 40180 is a tone generator and amplifier probe set designed to quickly trace and identify cables or wires within a group and check the operation of phone lines. The device includes a tone generator and a probe with volume and sensitivity controls.
| Power | 9V battery (tone generator and probe) |
|---|---|
| Tone output | 1kHz, 6V square wave |
| Probe dimensions | 228 x 57 x 25.4mm |
| Generator dimensions | 63.5 x 63.5 x 38.1mm |
| Weight | 272g |
Do not connect the tone generator to any wire or cable with an active circuit of more than 24VAC.
The LED glows bright green for low resistance, less brightly as resistance increases, and extinguishes at approximately 10,000 ohms.
A flickering yellow LED indicates that the line is ringing.