Enter Password, first digit entered, prompt for second
digit.
(* Denotes that decimal point will be flashing).
Use the “
Down” key to scroll the value of the second
digit from 0 through to 9, the value will wrap from9
round to 0.
Press the “
Up” key to advance to Up digit.
SysV
SysA
Hz
x1000
kWh
x1000
x1000
2. Measurement Reading Screens
In normal operation the user is presented with one of the measurement reading
screens out of several screens. These screens may be scrolled through one ata
time in incremental order by pressing the “
Up key” and in decremental order
by pressing “
Down key”.
3. Programming
The following sections comprise step by step procedures for configuring the
Ziegler
mfm
3420
for individual user requirements.
To access the set-up screens press and hold the“
Key simultaneously for 5 seconds. This will take the User into the Password
Protection Entry Stage (Section 3.1).
3.1. Password Protection
Password protection can be enabled to prevent unauthorised access to set-up
screens, by default password protection is not enabled.
Password protection is enabled by selecting a four digit number other than 0000,
setting a password of 0000 disables the password protection.
Down” and “
Up”
Enter Password, prompt for first digit.
(* Denotes that decimal point will be flashing).
Press the “
Down” key to scroll the value of the first digit
from 0 through to 9, the value will wrap from 9 round to 0.
Press the “
Up” key to advance to Up digit.
In the special case where the Password is “0000” pressing
the “
Up” key when prompted for the first digit will
advance to the “Password Confirmed” screen.
Screen 2 : Import Energy
Screen 1 : System screen
(System Voltage, System Current,
Frequency)
SysV
SysA
Hz
x1000
kWh
x1000
x1000
Screen 3 : Export Energy
Screen 4 : Max. System voltage andcurrent
SysV
SysA
Hz
x1000
kWh
x1000
x1000
SysV
SysA
Hz
x1000
kWh
x1000
x1000
Screen 5 : Min Sys Voltage & Current
SysV
SysA
Hz
x1000
kWh
x1000
x1000
SysV
SysA
Hz
x1000
kWh
x1000
x1000
SysV
SysA
Hz
x1000
kWh
x1000
x1000
1. Introduction
The
is a panel mounted 96 x 96mm DIN Quadratic Digital
Ziegler
mfm
3420
metering system for the measurement & display of basic electrical parameters like
AC Voltage, AC Current, Frequency, Import energy and Export energy.
The instrument integrates accurate measurement technology (All
Voltage & Current measurements are True RMS upto 15th Harmonic) with 3 line4
digits Ultra high brightness LED display.
Ziegler
mfm
3420
can be configured and
programmed at site for the following : PT
Primary, CT Primary, CT Secondary (5A or
1A)
The front panel has two push buttons through
which the user may scroll through the
available measurement readings, reset the
energy (Import/Export) Min/Max (System Voltage
and System Current) and configure the product.
SysV
SysA
Hz
x1000
kWh
x1000
x1000
Measure d Parameters
System Voltage
System Current
Frequency
Import Energy (8 Digit resolution)
Export Energy (8 Digit resolution)
Uni ts of measu rement
Volts
Amps
Hz
kWh
TABLE 1
kWh
Ziegler
-
mfm 3420
Single Phase
Single Phase Digital Volts, Amps, Frequency & Energy Indicator
Installation & Operating Instructions
Section
Contents
1.
Introduction
2.
Measurement Reading Screens
3.
Programming
3.1 Password Protection
3.2 Set Up Screens
5.
7.
Specification
Installation
5.1
EMC Installation Requirements
5.2
Case Dimensions and Panel Cut-out
5.3
Wiring
5.4
Auxiliary Supply
5.5
Fusing
5.6
Earth / Ground Connections
6.
Connection Diagrams
Down
Up
3.2.1 Potential Transformer Primary value
3.2.2 Current Transformer Primary value
3.2.3 Current Transformer Secondary value
3.2.4 Pulse Rate
3.2.5 Reset
3.2.6 Pulse Duration
3.2.7 Auto Scrolling
3.2.8 Display update Rate
3.2.9 Low Current noise cutoff
3.2.10 Assignment of Pulsed output to
Import or Export Energy
4.
Pulse output option
8.
Connection for Optional Pulse output
Ziegler
mfm 3420
Ziegler
mfm 3420
Digital Multifunction Instrument
www.ziegler-instruments.com
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