KRB-5404
54
5-3-2. OCR Setting Procedure (AGR-21B,22B,31B type)
CAUTION
OCR field tests and setting changes must be performed by competent persons.
After setting changes are made, the settings be checked with e.g., a type ANU-1 OCR checker (optional).
After completion of OCR tests, be sure to return the settings to the original values. Failure to do so may cause a fire or
burnout.
Before changing OCR settings, open the ACB and then lock the OFF button to prevent the ACB from being closed
inadvertently.
Do not push the SET button diagonally. Doing so may cause a poor in return and malfunction.
The following describes how to display measurements and make settings of the OCR.
5-3-2-1. General
1) Push the right end of the OCR cover to the left at the hollow on the front cover to unlatch and open the OCR cover. See Fig. 52.
If the OCR cover is padlocked, first remove the padlock.
Fig. 52 OCR cover
2) Make sure that control power is supplied. Control power supply is required to display measurements.
3) The MENU, SET, cross and ENT buttons are used to navigate the LCD screen. Fig. 53 provides the general view of the OCR.
Button symbols and their meanings
: Press the SET button using a pointed tool
such as the tip of a pen.
: Press the MENU button.
: Press the up key of the cross button.
: Press the down key of the cross button.
: Press the right key of the cross button.
: Press the left key of the cross button.
: Press the ENT button.
The button symbols are used in Figs. 54 – 67.
Fig. 53 OCR general view
4) Before changing OCR settings, open the ACB and then lock the OFF button to prevent the ACB from being closed
inadvertently. Unlock the OFF button after changing OCR settings.
5)
Close the OCR cover after viewing measurements or changing settings.
6) After setting changes are made, it is recommended that the settings be checked with e.g., a type ANU-1 OCR checker
(optional).
OCR cover
Hollow
Front cover
Whole LCD screen
Cross button
ENT button
CT rated primary current
Rated current (factory set)
液晶画面の表示寿命は，
一般的にコントラストが
５０％以下になる時間で
定められ，週温２５℃，
湿度５５％ＲＨの条件の
下で，約５
.
７年です。
液晶画面が見にくくなっ
た場合，ＯＣＲ全体の交
換を要します。ＯＣＲの
交換については，弊社に
お問合わせ下さい。
LCD
MENU button
SET button
