8.7.2 Product Information
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8.7.2 Product
Information
Product information for your instrument is also found in the Factory Reset menu.The
following information is provided:
D
Firmware version
D
Serial number
D
Option card type
D
Option card serial number
8.8 Error
Messages
The following are error messages that may be displayed by the Model 335 during
operation.
Error messages
Message
Description
DISABL
Input is disabled. Refer to section 4.4.
NOCURV
Input has no curve.Refer to section 4.4.7.
S.OVER
Input is at or over full-scale sensor units.
S.UNDER
Input is at or under negative full-scale sensor units.
T.OVER
Input at or over the high end of the curve.
T.UNDER
Input at or under the low end of the curve.
Cannot Communicate
with Input Processor
The main microprocessor has lost communication with the sensor
input microprocessor.
NOVRAM Corrupt, Reset?
Invalid data or contents in NOVRAM–when this message appears. Select Yes to this
message and press
Enter
to reset the factory default values.
**Temp Limit on**
**Input A**
The temperature reading on a sensor input has exceeded the
Temperature Limit setting.
**Temp Limit on**
**Input B**
** Keypad Locked **
An attempt has been made to change a parameter while the keypad is locked.
Refer to section 4.7.
**Heater 1 Short**
A short circuit condition has been observed on one of the heater outputs. The output
will be turned off when this occurs.
**Heater 2 Short**
**Heater 1 Open**
An open circuit condition has been observed on one of the heater outputs.
**Heater 2 Open**
**Invalid Cal**
Press Escape & Enter
The calibration memory is either corrupt, or is at the default, uncalibrated state. This
message appears when the Model 335 is first powered on. To clear the message, and
continue with instrument start-up, press
Escape
and
Enter
simultaneously.
**Invalid Opt Cal**
Press Escape & Enter
The installed option card calibration memory is either corrupt, or is at the default,
uncalibrated state. This message appears when the Model 335 is first powered on. To
clear the message, and continue with instrument start-up, press the
Escape
and
Enter
keys simultaneously.
** Firmware Update**
**In Progress **
This indicates that the Model 335 is in firmware update mode.
**Htr Circuit Fail**
**Output 1**
A hardware failure has been detected on one of the heater output circuits. The heater
has been shut down to protect it from further damage.
**Htr Circuit Fail**
**Output 2**
8.9 Calibration
Procedure
Instrument calibration can be obtained through Lake Shore Service. Refer to
section 8.14 for technical inquiries and contact information.
TABLE 8-2
