Amprobe MultiTest 2000 Manual De Usuario página 70

AMPROBE
7.3.1.1. SOUND LEVEL MEASUREMENT "faulty cases"
If the instrument
communicate with the
probe, the message
"HT55: NO RS232" will
be displayed.
THE PREVIOUS RESULTS CAN'T BE SAVED.
SOUND 05.06.01
SPL ----dB
Peak ----dB
Duration 0000:00:00
ν
HT55:NO RS232
PG*
MULTITEST2000
The instrument can't
communicate with Probe.
Check if the Batteries aren't
weak, the cable and the
adapter are correctly
connected.