Amprobe ACD-51HP Power-Quality-Clamp-Ons - Manual (Page 13)

ACD-51HP - ACD-56HPQ
4.2. DESCRIPTION OF FUNCTION KEYS
4.2.1. FUNC key
This key allows the user to cycle through each function’s measurement modes with each
key press.
V : press FUNC key to select between voltage and frequency measurement. •
A : press FUNC key to select between current and frequency measurement. •
: press FUNC key to start phase sequence detection. •
W : press FUNC key to select between active energy, reactive energy, apparent
energy, and power factor measurements on single-phase systems.
•
W3 Φ:
press FUNC key to select between active energy, reactive energy, apparent
energy, and power factor measurements on three phase balanced systems.
•
On the ACD-56HPQ model only, press & hold the
FUNC key for at least 1 second to
activate the “Harmonic measurement mode”. With the rotary selector switch in the
following positions
V : press and hold the FUNC key for at least 1 second to activate the voltage
harmonic measurement. By pressing the H ↑ and H↓ keys the individual
harmonic values are displayed.
•
A : press and hold the FUNC key for at least 1 second to activate the current
harmonic measurement. By pressing the H ↑ and H↓ keys the individual
harmonic values are displayed.
•
This function mode is disabled by:
• Pressing and holding the FUNC key for at least 1 second.
• Rotating the selector to any other position.
More details about the
FUNC key use are specified in the measurements paragraphs.
4.2.2. D-H / key
This key enables the HOLD function. The symbol "
H " is displayed when this function is
enabled. To disable this function:
• Press
the D-H key again
• Rotate the rotary selector switch to another position.
Press and hold the
key for 1 second to illuminate the backlight. The backlight
automatically turns off about 5 seconds after the last rotary selector switch or button
actuation.
4.2.3. MAX/MIN/PK key
By pressing and holding the MAX/MIN/PK key for at least 1 second, the instrument
activates the maximum (MAX), minimum (MIN), average (AVG) and peak (PK)
measurement modes. All of these values are continually updated even if only one of them
is displayed. By repeatedly pressing the MAX/MIN/PK key each value is displayed with the
corresponding frequency. To disable this function:
• Press and hold the MAX/MIN/PK key for at least 1 second.
• Rotate the selector to any position.
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