Multi Function Displays

The Multi Function Displays MFA 1001 and MFA 2001 are electronic multi-function panel meters for measuring and monitoring all important measurable values in the three-phase supply network.

The LC-display with background lighting (MFA 2001) enables reliable and glare-free reading even from a distance.

These Multi Function Displays feature a clear and easy to understand user interface as well as the direct display of the functions of all measuring values.

With built-in operating-hour counter.


The MFA 1001 incorporates all basic functions within a 4-phase network		The MFA 2001 with its extended functions incorporates a phase failure relay function as well as additional parameters and enhance- ments. Various data interfaces are optionally available.

Voltage
Measuring data		MFA 1001	MFA 2001
	Present voltage U (L1-N, L2-N, L3-N)	X	X
	Present voltage U (L1-L2, L2-L3, L3-L1)	X	X
	min. voltage U (L1-N, L2-N, L3-N) (since last reset)		X
	min. voltage U (L1-L2, L2-L3, L3-L1) (since last reset)		X
Current
	Current l (L1, L2, L3)	X	X
	Average current I (in relation to the integration time)	X	X
	Maximum current I (since last reset)	X	X
	Maximum current I, average (since last reset)	X	X
Frequency
	Frequency f (L1, L2, L3)	X	X
Power
	Active power P, present value (L1, L2, L3)	X	X
	Active power P, average (in relation to the integration time)		X
	Active power P, maximum value (since last reset)		X
	Reactive power Q, present value (L1, L2, L3)	X	X
	Reactive power Q, average (in relation to the integration time)		X
	Reactive power Q, maximum value (since last reset)		X
	Power factor cos φ (L1, L2, L3)	X	X
	Active power P, total network	X	X
	Reactive power Q, total network	X	X
	Power factor cos φ, total network	X	X
	Active power P, total network, average		X
	Reactive power Q, total network, average		X
	Power factor cos φ, total network, average		X
Operating time
	Operating time h	X	X
Energy
	Active energy Wh (received)	X	X
	Reactive energy varh (induktive)		X
Phase failure
	Phase failure function (L1-N, L2-N, L3-N)		X
	Phase failure function (L1-L2, L2-L3, L3-L1)		X

	LCD background lighting		X
Input
	Current input 5 A	X	standard
	Current input 1 A	X	alternatively
	Direct input current 30(50) A		optional
	Voltage input 400 V phase-phase	X	X
	Voltage input 110 V phase-phase		optional
Output
	Analogue output 0/4-20 mA		optional
	RS 485 interface including PC reading software		optional
	Profibus interface DP V0		optional
	Limit value 1 switching output	optional
	Limit value 2 switching outputs		X
Other options
	separate auxiliary power 230 V AC	optional	optional
	separate auxiliary power 24 V DC		optional
	snap-on mounting for DIN rail	optional	optional
	Interface converter RS 485 / RS 232		optional
	Interface converter RS 485 / USB		optional

Substantial performance characteristics

Display of mean current and mean maximum current
(bimetal / slave-pointer function)
Current transformer connection 1 A or 5 A
User-programmable CT/VT ratios
Quick and reliable connection with screw terminals
(up to 4 mm² cable diameter)
By wired limit value output freely selectable:
Impulse output or limit value output
no separate auxiliary power necessary

Technical data

Front dimensions	96 x 96 mm
Panel cut out	91 x 91 mm
Protection	IP 52 front IP 65 (optional)
Operation temperature range	-10°C.....+55°C
Voltage input	340 – 475 V phase-phase 196 – 275 V phase-neutral
Current input	0...5 A (1 A)
Frequency	45 – 65 Hz

Additional information: info@ams-messtechnik.de

Design und Programming: LILAC-media GbR

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Multi Function Displays

Measuring data

MFA 1001

MFA 2001

Substantial performance characteristics

Technical data