Prokit's Industries MT-2018 - Manual (Page 12)

11
Decibels Measurement
1. Set the selector switch to AC 10V range.
2. Connect the BLACK test lead to the “-COM” jack and the
RED test lead to the “Output” jack.
3. Connect the test leads to the measuring circuit, and then
read the bottom Red dB scale.
4. For more dB scope, change the selector switch to the others
of ACV ranges and make the same actions. Add the
appropriate number of dB scale reading as noted on the
chart below.
Note: For absolute dB measurements, circuit impedance
must be 600 Ohm. 0 dB = 1mw dissipated in a 600 Ohm
impedance (equivalent to 0.755V across 600 Ohm)
ACV RANGE ADD dB Number
50 14
250 28
1000 40
Capacitance measurement with the optional accessory kit for
Item No. MT-2007-C