Power Up (Pup) Configuration; 2.11.3 Power Up Errors - Lakeshore 330 User Manual

Lake Shore Model 330 Autotuning Temperature Controller User's Manual
2.11.2 Power Up Configuration
The user may store a Model 330 Power Up (PUP) configuration so the Model 330 powers up to a user-defined
state after power down. Retain heater range, setpoint, gain, reset, units, and curve number store in non-
volatile memory even when the line cord is disconnected.
Hold down Enter for 5 seconds to display PUP status in the top window, and either the words On or Off in the
bottom window. To change PUP status, while holding Enter, press the t key to cycle between On and Off.
"On" indicates that power up settings change when instrument settings are changed via the front panel or the
remote interface. "On" is the default PUP condition. If left on, the instrument powers up in the same
configuration it powered down.
"Off" indicates power up memory updates are disabled and the instrument powers up in the same
configuration as when the power up feature was turned off.

2.11.3 Power Up Errors

On power up, the Model 330 checks internal memory. There are two potential error messages. The first error,
"Er01", indicates an unsuccessful attempt to write and read the internal non-volatile RAM. This error is not
user-correctable. Contact the factory.
The second error, "Er02", indicates an unsuccessful attempt to read internal non-volatile RAM for the Model
ID. Sometimes, initializing the Model 330 memory may correct this error. To initialize the memory, hold both
the Escape and Units keys for about 20 seconds. Release once the power up sequence begins. Perform this
operation only under extreme circumstances; it erases all user-defined curves in memory.
2-10 Installation