HRX-OM-Q026 
Chapter  5   Display  and  Setting  of  Various  Functions 
HRSH Series  5.12 Key Operation Sound Setting 
 
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5.12 Key Operation Sound Setting 
5.12.1  Key operation sound setting 
Operation sound (click sound) of the keys on the operation panel can be set 
ON/OFF.   
Default setting is key operation sound “ON”. 
5.12.2  Setting/checking of the key operation sound 
The table below shows the set item for key operation sound and the default setting. 
 
Table 5.12-1 Set item for key operation sound 
Sets key operation sound ON/OFF. 
 
1.  Press and hold the [MENU] key for approximately 2 seconds. 
Repeat pressing the key until the key-lock setting screen [ ] appears on the digital 
display. 
         
 
 
Setting/Checking: Key operation sound 
2.  Press the [SEL] key 10 times. 
Setting screen of key operation sound appears on the digital display. 
 
 
3.  Set the key operation sound On/OFF with [▲] key or [▼] key, and press the “SEL” key 
to enter. 
Table 5.12-2 Setting for key operation sound 
 
4.  Press the [MENU] key once. 
Returns to the main display (which shows the circulating fluid temperature). 
 
Press and 
hold [MENU] 
key. 
Press and 
hold [MENU] 
key.