Z E S ZIMMER Electronic Systems GmbH Chapter 15
283
Catchword
Meaning
signal is too big for the selected range.
P
Packed
Data are transferred binary instead of ASCII format
Parallel interface
⇒
Serial interface; here the data is transferred in parallel.
Parity
Even or odd number of 1’s in a binary data block; The LMG
works without parity.
Parsing
The LMG tries to interpret a formula or interface string and
to react correctly.
Partial odd harmonic current
The harmonic content of order 21, 23 ...
PCMCIA memory cards
⇒
Memory card; PCMCIA is the old name for the PC -
Card standard.
Peak current ranges
Ranges with quiet small allowed TRMS values (because of
the heating up of the shunt) but very big allowed peak
values; very useful to measure
⇒
Inrush currents.
Peak value
Value measured from the zero line to the highest peak of the
signal.
Peak-peak value
Measured from the lowest to the highest peak of a signal.
Periodic integration mode
In this mode the integration interval is repeated periodically.
Phase
Conductor of the high potential; typically marked with L.
Phase angles
Usually the angle between current and voltage.
Phase error
The error in power caused by an additional phase shift in the
measuring equipment, for example the additional phase shift
of a current clamp.
Physical device
Hardware, device (RS232, printer, GPIB...).
Plot function
Mode in which cycle values (e.g. voltage, frequency, ...) are
displayed over time.
Power
The energy of a time interval divided by the internal time
(e.g. cycle time); so the power is always an averaged value!!
Power factor
Relation between active and apparent power.
Power measuring channel
⇒
Channel.
Power supply
Source which provides the necessary voltage.
Pretrigger
Time before the trigger condition, while which sample values
are stored.
Printer header
Upper line of the printer like a title or headline.
Printer output
Socket to connect a printer.
Processing signal interface
Board with Analogue or Digital outputs.
Protocol
Arrangements for communication between devices.
Pulse controlled currents
A modulated current controls the device’s power; like in a
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