HRX-OM-M090 
Chapter 5   Display and setting of various functions 
 
5.5 Key-lock  HRS Series 
 
 
5-14  
5.5.2  Key-lock setting / checking 
The table below explains the setting items of the key-lock function and the 
initial values. 
 
Table 5.5-1  List of key-lock 
Display  Item  Contents 
Initial value 
(Default setting) 
 
Key-lock 
Sets key-lock. 
While key-lock setting is ON, no other setting is 
available. 
OFF 
 
1. Press and hold the [MENU] key for approx. 2 sec. 
Repeat pressing until the setting display [
] for key-lock setting appears on the 
digital display 
PV
SV
   
PV
SV
   
PV
SV
 
 
Key-lock setting and checking 
2. Select “ON” from the table below with [▲] key or [▼] key, and confirm with “SEL”. 
Table 5.5-2  List of set value 
Set value  Explanation 
Initial value 
(Default setting) 
 
Key-lock function OFF 
○ 
 
Key-lock function ON   
 
3. Press the [MENU] key once. 
Return to the main screen (screen displaying the circulating fluid temperature). 
PV
SV
 
 
[MENU] 
Press and 
hold 
[MENU] 
Press and 
hold