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Controller Operation
Controller Configuration
The operating parameters menu contains the High Limit and Stir Speed parameters.
High Limit
9.8.1.1
The High Limit Parameter adjusts the upper set-point temperature. The factory default
and maximum temperature are set to 126°C. For safety, a user can ad just the HL down
so the maximum temperature set-point is restricted.
HL
High Limit parameter
Press “SET” to enable adjustment of HL
HL
Flashes “HL” and then displays the setting
H=126
Current HL setting
Adjust the HL parameter using “UP” or “DOWN”
H=90
New HL setting
Press “SET” to accept the new temperature limit.
Stir Speed
9.8.1.2
The Stir Speed parameter adjusts stirrer motor speed. The factory default is 20.
Str SP
Flashes “Str Sp” and then displays the setting
0
Current Stir Speed setting
To change the stir speed press “UP” or “DOWN”.
16
New Stir Speed setting
Press “SET” to accept the new Stir Speed.
The stir motor speed needs to be varied for best stability. Table 3 on page 25 shows
nominal settings for several fluids.
9.8.2 Serial Interface Parameters
The serial RS-232 interface parameters menu is indicated by,
SErIAL
Serial RS-232 interface parameters menu
