Ammeter EPM-14 Manual

AMMETER
EPM-14
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1 ......... This display shows to measured current.
2 ........... ESC button to exit from a menu any time.
3 ........... DOWN button.
4 ........... UP button.
5 ........... SET button. It is used to enter into the menu and to save the values.
If SET button is pressed for 3 seconds in the measurement mode,
you can enter into menus.

Precautions For Installation and Safe Use

- Failure to follow those instructions will result in death or serious injury.
- Disconnect all power before working on equipment.
- When the device connected to the network, do not remove the back panel.
- Do not try to clean the device with solvent or the like.Only clean the device
with dried cloth.
- Verify correct terminal connections when wiring.
- Electrical equipment should be serviced only by your component seller.
- Only for rack panel mounting.
- The fuse should be used F type and current boundary value must be 6A.
No responsibility is assured by the manufacturer or any of its subsidiaries
for any consequences arising out of the use of this material.

General Information

EPM-14 is designed to measure the current of the single phase systems.

Applications of EPM-14

1) It can measure Current in single phase systems.
2) You can observe demand and max. demand value of measured current with
2 different periods, also the calculation time for demand and max. demand value
can be determined from the dE-t (demand time) menu.
3) Current transformer ratio can be programmed,
[1....1000 (for X/5A), 1....5000 (for X/1A)]
4) A password can be arranged from CodE menu in order to prevent
change of the setting by unauthorized person.

Specific Functions of Buttons:

While device is in the measurement mode, some buttons and button groups have
below special functions.
: When “DOWN” button is pressed, 1st demand value is displayed.
: When “UP” button is pressed, 1st max. demand value is displayed.
: When “ESC” and “DOWN” buttons are pressed at the same time,
+
2nd demand value is displayed.
: When “ESC” and “UP” buttons are pressed at the same time, 2nd
+
max. demand value is displayed.
: When “DOWN” and “UP” buttons are pressed at the same time,
+
all demand and max. demand values are reset.

EPM-14 Menu Settings

After making the connections of the device as given in user manual, voltage is
supplied. Required settings must be done by using menus in order to have the
correct measurements and applications.

Current Transformer Menu

In this menu, current transformer ratio and current transformer secondary
value is set.

Current Transformer Ratio

In this menu, current transformer ratio is set.
[1 ...... 1000 (for X/5A), 1 ...... 5000 (for X/1A)]
Note: If the current transformer is not used between the system and
EPM-14, CT ratio must be set as “1”.
For example: If a current transformer with 30 A / 5 A is used between
the system and EPM-14, CT ratio must be set as “6”. (30/5=6)
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In order to set CT ratio. In the measurement mode;
Press SET button for 3 secs.(trF menu is displayed)
Press SET button (Ctr menu is displayed)
Press SET button (Mosy left digit of display blinks)
Find 1st digit of the value which you want
to enter by scrolling UP/DOWN buttons.
Press SET button (2nd digit of display
blinks. If you set 1st digit value incorrect,
you can set again by pressing ESC
button)
Find 2nd digit value by scrolling
UP/DOWN buttons.
Press SET button (3rd digit of display blinks. If you set 2nd digit
value incorrect, you can set again by pressing ESC button.)
Find 3rd digit value by scrolling UP/DOWN buttons.
Press SET button (4th digit of display blinks. If you set 3rd digit value
incorrect, you can set again by pressing ESC button.)
Find 4th digit value by scrolling UP/DOWN buttons.
Press SET button (Ctr is displayed.)
Press ESC button one by one until CAnC is displayed.
By using UP/DOWN buttons, find SAUE
Press SET button while SAUE is displayed. (If you press ESC button
or select “CAnC” option instead of “SAUE”, new data is cancelled
and the previous data is set.)

Current transformer secondary value setting

In this menu, current transformer secondary value can be set as “5A”
or “1A”.
Note: If the secondary value is changed from “5A” to “1A”, Ctr
(current transformer ratio) value is set as 5 times of previous value
automatically. If the secondary value is changed from “1A” to “5A”,
Ctr (CT ratio) value is set as 1/5 times of the previous value
automatically.
In order to set secondary value; in the measurement mode,
Press SET button for 3 secs. (trF menu is displayed)
Press SET button (Ctr menu is displayed.)
By using UP/DOWN buttons, find SEC
menu.
Press SET button (active secondary
value is displayed on display)
Set the secondary current value by using
UP/DOWN buttons
Press SET button SEC is displayed. (New value is entered but it is not
executed yet. In order to set the new value, please follow below steps)
Press ESC button one by one until CAnC is displayed.
By using UP/DOWN buttons, find “SAUE
Press SET button while SAUE is displayed. (If you press ESC button
or select “CAnC” option instead of “SAUE”, new data is cancelled
and the previous data is set.)
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