background image

New / Change Password, third digit entered, prompting
for fourth digit. (* denotes that decimal point will be
flashing).

Pressing the “

Down” key will scroll the value of the

fourth digit from 0 through to 9, the value will wrap from
9 round to 0.

Pressing the “

Up” key advances the operation to

the “New Password Confirmed” and sets the fourth digit,
in this case to “3”.

New Password confirmed

Pressing the “

Down” key will return to the

“New/Change Password”.

Pressing the “

Up” key will advances to the Set up

screen.(see section 3.2).

3.2 Set Up Screens

Enter Password, second digit entered, prompt for third
digit.
(* Denotes that decimal point will be flashing).

Use the “

Down” key to scroll the value of the third

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

Enter Password, third digit entered, prompt for fourth
digit.
(* Denotes that decimal point will be flashing).

Use the “

Down” key to scroll the value of the fourth

digit from 0 through to 9, the value will wrap from9
round to 0.

Press the “ Up” key to advance to verification of the
password.

SysV

SysA

Hz

x1000

kWh

x1000

x1000

Enter Password, fourth digit entered, awaiting
verification of the password.

SysV

SysA

Hz

x1000

kWh

x1000

x1000

Password confirmed.

Pressing “

Down” key will advance to the “New/

change Password” entry stage.

Pressing the “ Up” key will advance to the Set up
screen. (See section 3.2).

SysV

SysA

Hz

x1000

kWh

x1000

x1000

Password Incorrect.

The unit has not accepted the
Password entered.

Pressing the"

Down" key will return to

the Enter Password stage.

Pressing the “

Up” key exits the

Password menu and returns operation
to the measurement reading mode.

SysV

SysA

Hz

x1000

kWh

x1000

x1000

New / Change Password

(*Decimal point indicates that this will be flashing).
Pressing the “

Down” key will scroll the value of the

first digit from 0 through to 9, the value will wrap from9
round to 0.

Pressing the “

Up” key to advances the operation to

the Up digit and sets the first digit, in this case to “2”

SysV

SysA

Hz

x1000

kWh

x1000

x1000

New / Change Password, second digit entered,
prompting for third digit. (*decimal point indicates that
this will be flashing).

Pressing the “

Down” key will scroll the value of the

third digit from 0 through to 9, the value will wrap from9
round to 0.

Pressing the “

Up” key advances the operation to

the Up digit and sets the third digit, in this case to “5”

New / Change Password, first digit entered, prompting for
second digit. (*Decimal point indicates that this will be
flashing).

Pressing the “

Down” key will scroll the value of the

second digit from 0 through to 9, the value will wrap from
9 round to 0.

Pressing the “

Up” key advances the operation to the

Up digit and sets the second digit, in this case to “1”

SysV

SysA

Hz

x1000

kWh

x1000

x1000

SysV

SysA

Hz

x1000

kWh

x1000

x1000

SysV

SysA

Hz

x1000

kWh

x1000

x1000

SysV

SysA

Hz

x1000

kWh

x1000

x1000

Potential Transformer Digit Edit

Pressing the “

Down” key will scroll the value of

the most significant digit from 0 through to 9 unless
the presently displayed Potential Transformer Primary
Value together with the Current Transformer Primary
Value, previously set, would result in a maximum power
of greater than 120 MVA in which case the digit range
will be restricted.

Pressing the “

Up” key accepts the present value

at the cursor position and advances the cursor to the
Up less significant digit.
(* Denotes that decimal point will be flashing).

Note: the flashing decimal point indicates the cursor position,a steady decimal point will be present
to identify the scaling of the number until the cursor position coincides with the steady decimal point
position. At this stage the decimal point will flash.

When the least significant digit has been set pressing the “

Up” key will advance to the

“Potential Transformer Primary Value Confirmation” stage.

Screen showing display of 0.120 kV i.e. 120 Volts indicating steady decimal point and cursor
flashing at the “hundreds of volts” position.

3.2.1. Potential Transformer Primary Value

The nominal full scale voltage will be displayed, inclusive of any transformer ratios.

The values displayed represent the voltage in kilovolts (note the x1000 enunciator).

Pressing the “

Up” key accepts the present value

and advances to the “Current Transformer Primary
Value edit” menu. (See Section 3.2.2)

Pressing the “

Down” key will enter the “Potential

Transformer Primary Value Edit” mode.

Initially the “multiplier must be selected, pressing the“
Down” key will move the decimal point position to the
right until it reaches # # # .# after which it will return to
#. # # #.

Pressing the “

Up” key accepts the present

multiplier (decimal point position) and advances to the
“Potential Transformer Digit Edit” mode.

SysV

SysA

Hz

x1000

kWh

x1000

x1000

SysV

SysA

Hz

x1000

kWh

x1000

x1000

www.ziegler-instruments.com

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Summary of Contents for mfm 3420

Page 1: ...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 Ziegl...

Page 2: ...sing the Up key advances the operation to the Up digit and sets the third digit in this case to 5 New Change Password first digit entered prompting for second digit Decimal point indicates that this w...

Page 3: ...imary Value Confirmation stage The minimum value allowed is 1 the value will be forced to 1 if the display contains zero when the Up key is pressed Current Transformer Primary Value Confirmation This...

Page 4: ...and will advance to Auto scroll menu see section 3 2 7 pressing the Down key will re enter the Pulse Duration Edit mode 3 2 7 Auto Scrolling This screen allows user to enable screen scrolling Pressin...

Page 5: ...3 To protect the product against permanent damage surge transients must be limited to 2kV pk It is good EMC practice to suppress differential surges to 2kV at the source The unit has been designed to...

Page 6: ...es at 10s intervals 0 2VA approx Nominal inputcurrent 1A 5A AC rms programmable at site Max continuous inputcurrent 120 of Rated Value Nominal input current burden 0 6VAappro x Max short duration curr...

Page 7: ...torage temperature Relative humidity Warm up time Shock Vibration Enclosure front only Enclosure 96mmx 96mm DIN Quadratic Polycarbonate Housing Screw type terminals 80 mm 0 620 kg Approx Style Materia...

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