Cryo-con Model 24C A Quick Start Guide to the User Interface.
Configuring the Control Loops
Before using the Loop #1 (main heater) control output, it is essential that the proper
load resistance and output range be selected. This is done using the Control Loop
Setup menu as follows:
Press the Loop 1 key.
In the Control Loop Configuration menu, Use the up, down, right and left
keys to scroll to the Htr Resistance field. An example is shown here:
Use the + and 0 keys to select between a 50-
Ohm and a 25-Ohm heater and then press
the Enter key.
Use the navigation keys to scroll to the Range
field and then select the desired heater range.
Be sure to select a range that does not exceed the ratings of your cryostat. A
summary of full-scale output power for the various ranges is given here:
Range
Max. Output Power
25 50
Hi
25 Watts 50 Watts
Mid
2.5 Watts 5.0 Watts
Low
0.25 Watts 0.50 Watts
Table 3: Loop #1 Output Summary
Next, the control type should be set by scrolling to the Type field and selecting the
desired loop operating mode.
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