Accessing Max/Min Values; Resetting Values - GE EPM 5300 Instruction Manual

CHAPTER 5: OVERVIEW

5.5: Accessing Max/Min Values

Max/min values represent the highest and lowest average demand over a user programmable time period
known as the Integration Interval. The readings are calculated using a rolling average technique. Each
second, a new reading is used to calculate the max/min; the last reading of the interval is dropped off.
The highest max during an averaging period is stored until the user resets the max/min. This is similar to
amp demand meters. It is commonly referred to as Thermal Demand.
To access a max/min value while displaying a desired measurement, press MAX/MIN/LIMITS—once for
the max value; twice for the min. Examples given below are for voltage and current phases. Use the
same procedure for all other parameters.
AC VOLTS
MAX
A B
MIN
N N
LM1
LM2
AC AMPS
A
KVAH KWH FREQ
PHASE
MAX/MIN
VOLTS AMPS POWER
LIMITS
Step 1:
a. To select the Volts category,
press VOLTS.
! The display blanks and all
annunciators glow, confirming
selection.
To access KW, KVAR and PF negative measurements indicating leading current, press MAX/MIN/LIMITS
five times for negative max and six times for negative min.

5.6: Resetting Values

Use the reset function if a new value is desired. It is available in two different modes.
1.UNPROTECTED MODE: Allows quick and easy resetting of max/min values.
2.PROTECTED MODE: Prevents unauthorized resetting the max/min and totaled power functions.
Note: Even if the unprotected mode is selected during programming, the KWH and negative KWH
are always in protected mode. The following examples are for the max/min.
30
MAX
C A B C
MIN
N B C A
LM1
LM2
B C N
POWER
PF
KW
KVA
KVAR KVAH
MAX/MIN
VOLTS AMPS
LIMITS
NEXT
Step 2:
a. Press PHASE/NEXT for the
desired phase.
EPM 5000 series Advanced Power Meters
AC VOLTS
A B C A B C
N N N B C A
AC AMPS
A B C N
POWER
PF
KW
KVA
KWH FREQ KVAR
PHASE
POWER
NEXT
Step 3:
a. Press MAX/MIN/LIMITS once
to view the maximum reading for
Volts C-N.
! The display blanks and
momentarily indicates the max
value.
AC VOLTS
MAX
A B C A B C
MIN
N N N B C A
LM1
LM2
AC AMPS
A B C N
POWER
PF
KW
KVA
KVAH KWH FREQ KVAR
MAX/MIN PHASE
POWER
VOLTS AMPS
LIMITS
NEXT
GE Multilin