GE EPM 5300, EPM 5200, EPM 5350 instruction manual Resetting Values

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.

MAX			AC VOLTS
			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	VOLTS	AMPS	POWER	PHASE
LIMITS				NEXT

MAX			AC VOLTS
			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	VOLTS	AMPS	POWER	PHASE
LIMITS				NEXT

MAX	AC VOLTS
	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	VOLTS AMPS	POWER	PHASE
LIMITS			NEXT

Step 1:

a. To select the Volts category, press VOLTS.

!The display blanks and all annunciators glow, confirming selection.

Step 2:

a. Press PHASE/NEXT for the desired phase.

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.

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 EPM 5000 series Advanced Power Meters GE Multilin