Operation - Using Two Sets of Tuning Constants (PID Values) 
138    DR4500A Classic Series Circular Chart Recorder With or Without Control Product Manual  Release M 
    April 2017 
Switch between two sets via the keyboard (without automatic switchover) 
This procedure is operational only if 2 PID SETS was configured at “CONTROL” set up group. 
The procedure in 80HTable 5-22 shows you how to switch from one set to another. 
Table 5-22 Procedure for switching PID sets from the keyboard 
 
Access the PID set 
display 
Until you see: 
  Upper Display:  The PV value 
  Lower Display:  PIDSETX 
    X = 1 or 2 
Change PIDSET1 to PIDSET2 or vice versa.