Setting The Parameters For Alarms - AEMC 8335 User Manual

4.3.4 Setting the Parameters for Alarms

• Highlight Alarm Mode with the ▲ and ▼ buttons, then press the
• There are five user-defined parameters. At first, they will be listed as a ques-
tion mark "?" Select the line you want to modify using the ▲ and ▼ buttons,
then press the
• Use the ▲ and ▼ buttons to browse and select the value, then press the
button to confirm the choice.
• To navigate horizontally, use the
the values with the ▲ and ▼ buttons, then confirm with
For each alarm to define, select:
• The type of alarm (Vah, Ah, Uh, Vh, Tan, PF, DPF, VA, VAR, W, Athd,
Uthd, Vthd, KF, Hz, Aunb, Vunb, Vrms, Acf, Ucf, Vcf, PST, Arms, Urms
and Vrms).
• The harmonics range (between 0 and 50 for Vah, Ah, Uh and Vh).
• The alarm filter (3L: 3 individually monitored phases or N: monitoring neu-
tral or Sigma/2 or Sigma/3 or Sigma).
• The meaning of the alarm (> or < for Arms, Urms, Vrms, Hz only, other-
wise the direction is unique).
• The threshold for triggering the alarm (10 possible settings of the alarm in
the following cases: W, VAR and VA).
• The minimum duration for exceeding alarm validation threshold (in min-
utes, seconds, or for Vrms, Urms and Arms, in hundredths of seconds).
• The hysteresis value (corresponds to the percentage added or taken
away from the alarm threshold chosen that will stop the alarm in the event
of overrun - Value 1, 2, 5 or 10%).
• Activating the alarm (read item) or deactivating it (see next page).
36
Figure 4-6
button to confirm.
◄ and ► buttons, then confirm with
.
Power Quality Analyzer Model 8335
button.
. Select