YOKOGAWA WT310EH User Manual

1-2
IM WT310E-01EN
Power
Measurement
Function
(Symbol)
Panel Indicator
Light
Description Measured for
Each Input
Element
Measured for
Wiring Units
(WT332E/
WT333E only)
P W Active power Yes Yes
S VA Apparent power Yes Yes
Q var Reactivepower Yes Yes
λ PF Power factor Yes Yes
Φ ° Phase difference Yes Yes
P+pk Wpk Maximum power Yes No
P-pk Wpk Minimum power Yes No
Frequency
Measurement
Function
(Symbol)
Panel Indicator
Light
Description Measured for
Each Input
Element
Measured for
Wiring Units
(WT332E/
WT333E only)
fU VHz Voltagefrequency Yes No
fI AHz Current frequency Yes No
fPLL (PLL U) VHz Frequency of PLL voltage
*
Yes No
fPLL (PLL I) AHz Frequency of PLL current
*
Yes No
* Only on models with the harmonic measurement option
Integrated Power (Watt hour)
Measurement
Function
(Symbol)
Panel Indicator
Light
Description Measured for
Each Input
Element
Measured for
Wiring Units
(WT332E/
WT333E only)
Time Time Integration time Yes No
WP Wh Sum of positive and negative watt
hours
Yes Yes
WP± Wh± Positive or negative watt hours Yes Yes
q Ah Sum of positive and negative
ampere hours
Yes Yes
q± Ah± Positive or negative ampere hour Yes Yes
AVP
*
MATH Average active power during
integration
Yes Yes
* This measurement function is set using the MATH feature of this instrument.
Efficiency (WT332E/WT333E only)
*
Measurement
Function
(Symbol)
Panel Indicator
Light
Description
EFFi MATH Efficiency
* This measurement function is set using the MATH feature of the WT332E/WT333E.
Basic Arithmetic
*
Measurement
Function
(Symbol)
Panel Indicator
Light
Description
A+B MATH A+B
A-B MATH A-B
A×B MATH A×B
A÷B MATH A÷B
A÷B^2 MATH A÷B
2
A^2÷B MATH A
2
÷B
* This measurement function is set using the MATH feature of this instrument.
1.1 Items That This Instrument Can Measure

YOKOGAWA WT310EH Specifications

General

Brand	YOKOGAWA
Model	WT310EH
Category	Measuring Instruments
Language	English