4-6
Chapter 4. BASIC OPERATION
4 - 3 Selecting the Operating Mode
When the [DISP] key is pressed for less than 1 second while the instantaneous flowrate is displayed (same as the
display at power supply ON), the instantaneous flowrate indication on the upper display is not changed, and the
lower display shows the operating mode, enabling the selection of operation mode.
Follow the procedure below to select the operation mode:
(1) Press the [DISP] key to display the operation mode.
(2) Press the [
] key or [v] key.
>>
The display is changed as shown below.
FULL
[ ]key [V]key
0
[ ]key [V]key
0FF
[V]key
FULL: Fully open mode
0: Control mode
0FF: Fully closed mode
[ ]key
(3) Select the target operating mode.
>>
Display blinks.
(4) Press the [ENT] key to fix the operating mode.
>>
The operating mode is changed.
Handling Precautions
• When “0: The operating mode selection by key operation is disabled” is
selected at the operation mode selection C-02 in the function setup, the
operating mode is not displayed even if the [DISP] key is pressed.
• When the [DISP] key is pressed during the operation in step (3) (the operating
mode indicated by blinking display), the operating mode selection is
cancelled.
Note
• When the operating mode selection 5, 6 or 8 is selected at the external switch
input function assignment C- 10 and C- 1 1 in the function setup, the operating
mode selection (valve fully closed / fully open) by the ON/OFF operation of
external switch inputs can be performed.
For the function setup method, refer to;
Chapter 5. ADVANCED OPERATION.
• When each operation mode is entered ever while the instantaneous flowrate is
displayed, the operation mode is indicated on the upper display as shown below.
The "OK" lamp blinks in fully open mode.
Table of operation mode displays while the instantaneous flowrate is displayed
Operating mode Upper display [OK] lamp Remarks
Fully closed mode
0FF
O
[
0FF
] is displayed at all times after owrate zero is conrmed.
Control mode
0
On or O
[
0
] is displayed for 1 second when the control mode is
entered.
Fully open mode
FULL
Blinking
[
FULL
] is displayed for 1 second when the fully open mode is
entered.