HT instruments PQA824 - Manual (Page 58)

PQA400 - PQA823 - PQA824
EN - 57
5.4.9. Flicker
This option permits to set control parameters relative to flicker value recordings on the
input voltages in compliance to IEC/EN61000-4-15 standard (see § 10.4). In particular the
below parameters are shown by meter:
 Pst1’ = short term severity at 1 min.
 Pst = short term severity for all recording duration.
 Plt = long term severity for all recording duration.
The below screen is shown:
12/09/2006 – 16:55:10
RECORDING SETTINGS

+  General Parameters
+ Harmonics
Voltage Anom.: 230V 6%-30%
Inrush current: 30A 1s fix
 Flicker
Unbalance 
100/251 Parameters – Autonomy: 21d 0h
CLP/EXP PREDEF. SEL MODIFY
Fig. 107: Flicker setting screen
For flicker recording at least one voltage selection and a correct integration period are
necessary conditions. In particular if no voltage are selected the below error screen is
shown by meter:
12/09/2006 – 16:55:10
RECORDING SETTINGS

+  General Parameters
+ Harmonics
Voltage Anom.: 230V 6%-30%
Inrush current: 30A 1s fix
 Flicker
Unbalance 
Error: no selected voltage
CLP/EXP PREDEF. SEL MODIFY
Fig. 108: Flicker setting screen - no selected voltage
See the § 5.4.6 to exit from this error situation. In case of integration period setting value
less of 1 minute or higher to 15 minutes the below error screen is shown by meter:
12/09/2006 – 16:55:10
RECORDING SETTINGS

+  General Parameters
+ Harmonics
Voltage Anom.: 230V 6%-30%
Inrush current: 30A 1s fix
 Flicker
Unbalance 
Errore: wrong period for flicker
CLP/EXP PREDEF. SEL MODIFY
Fig. 109: Flicker setting screen - wrong period for flicker
See the § 5.4.4 to exit from this error situation.