Specifications

Synergy Nano Technical Manual, Revision -
Page 236
14.2.2 Select Cascade PIDs
Select the PIDs folder in the screen above to
view the screen shown on the left. Use this
screen to view and change the Proportional Band
and Reset settings.
Note: Rate and Rate Band settings aren’t used.
14.2.3 Select Air Temperature Limits
Select the Settings Folder from the Setup\PID
Settings\Cascade screen. In the Settings screen
shown, ‘Cascade Low Limit’ and ‘Cascade High
Limit’ are the minimum and maximum air
temperatures that the controller will use to
achieve the desired product temperature. These
parameters default to -100 C and +200 C,
respectively but should be changed to values
dictated by the chamber and product under test.
The chart below shows a graph of air
temperature setpoint versus PID output for the
default values.
Warning!
The ranges set for Cascade High Limit and Cascade Low Limit must be within the range of the
sensor used, which is described in the Select Cascade Sensor section. RTDs have a greater
temperature range than the Synergy Nano’s UUT thermocouple sensor. The UUT module Type T
thermocouple range is as follows: Low Value = -100 deg. C and High Value = +400 deg. C.
Warning!
Set the ‘Cascade Low Limit’ and ‘Cascade High Limit’ carefully. Be certain they are within the
capabilities of the chamber and the product under test. These are the minimum and maximum air
temperatures that the controller will use.