Amprobe DM-II-PLUS Power-Quality-Recorder - Manual (Page 17)

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CURRENT RANGE = Must always be equal to the full scale or the scale selected (if multi-scale)
on the clamps used to take the measurement.
CLAMP TYPE = Select the clamp type used to take the measurement. These clamps allow 1000A
and 3000A range:
STD = Standard or Current Transformers (DM-CT-HTA-1000A 1000A) •
FlexEXT: Flexible with External power supply.(ACF-3000 SR) •
FlexINT: Flexible AM-Flex33 (coils directly connected to the instrument inputs). •
TV RATIO = Display value of voltages present on the primary winding of the transformers. Set
the value of the transformers’ windings ratio from 2:1 to 3000:1.
PASSWORD = Disable START/STOP after 5 minutes of inactivity during a recording or direct
energy measurement. Push the password F1, F4, F3, F2 within 10 seconds and then START/STOP
to enable the MENU.
Recorder Configuration
Push MENU and select RECORDER CONFIG using the  Up and  Down keys.
NOTE: The value of the network frequency is automatically selected if at least one phase
voltage (for the Single-phase or 3PH4W mode) or at least one phase-to-phase voltage (for
3PH3W mode) is selected.
If you select a power factor (Pf) or a cosϕ (dPf) for the recording, the instrument will
automatically record their inductive and capacitive values separately.
There are four pages to set parameters for measurement. Push ENTER to display each page:
general Settings (Refer to fig.17) 1.
Select the method of recording: •
START – MANU or AUTO
STOP – MANU or AUTO
Select the Integration Period:
•
INT. PERIOD – From 5sec to 60min for instrument memorization of values.
Select to record:
•
Voltage and Current Harmonics
HARM REC – ON (record) or OFF
Voltage Sag and Surge
ANOM REC – ON (record) or OFF
VoLtAgE settings with sub-page Harmonics for voltage harmonics settings. (Refer to 2.
fig.18)
Push ENTER from the General Settings page to view this page.
VOLTAGE REC: •
Push  Up or  Down key (F1 or F2) to point to the various voltages. Push F3 (+) to
highlight and select it for voltage recording or Push F4 (-) to deselect it.
HARM. REC: (Refer to Fig.19)
•
To view the VOLTAGE HARMONICS sub-page, move  Up or  Down key (F1 or F2)
to point to Pg and Push F3 (+). This will only display if HARM REC is set to ON.
Push F3 (+) to highlight and select it for voltage recording or Push F4 (-) to deselect it.
For example, the harmonics that will be recorded in Fig.21 are Thd, 01, 03, 05, and 07.
Push  Up or  Down key (F1 or F2) to point to Vref. Set the nominal phase to
neutral P-N. Set LIM+ and LIM-.
Vref P-N: the RMS reference value.
LIM+: High Voltage Percent threshold.
LIM-: Low Voltage Percent threshold.
CURRENt settings with sub-page Harmonics for Current harmonics settings. (Refer to 3.
fig.20)
Push ENTER from the VOLTAGE page to view this page.