Galaxy Audio CHECK MATE CM-160 - Manual (Page 8)

DC Signal
AC Signal Ground
Signal output terminal
AC: 1 Vrms Corresponding to each range step.
Output impedance = 100Ω
Output signal by standard 3.5mm mini stereo jack with signal on tip.
Note: At “Auto” level range, output signal is Auto select on “Lo” or
“Med” or “Hi” level range.
DC: Output: 10mV/dB
Output impedance = 1KΩ
Output signal by standard 3.5mm mini stereo jack with signal on ring
External DC 9V power supply terminal
For connection with AC adapter.
Tripod mounting screw.
Battery Cover
V. AUTO POWER OFF
By default, when the meter is powered on, it is under auto power off
mode. The meter will shut itself off after 30 minutes if there is no key
operation, no USB communication, or no recording combination
selected at power up.
By pressing and holding the “
FAST/SLOW” button and then turning on
the meter the will not show up, indicating that auto power off is
disabled.