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1 — OVERVIEW
pg. 3
Curtis Model 3301T Digital Instrumentation – September 2021
Programming
The 3301T provides the basic functions of the Curtis 1313 Handheld Programmer. Users can read and
write parameters for the 3301T and for other Curtis devices that are on the CANbus or connected
through the serial port. For more information, see
LCD Heater
Some models include an LCD heater for vehicles that operate in cold temperatures. The heater
extends the minimum operating temperature from −20°C to −40°C. The 3301T turns the heater on
when the LCD temperature is below −15°C and off when the LCD is heated to 5°C.
The model number indicates whether a 3301T model has an LCD heater. See the Model Encodement
section in the
appendix.
Miscellaneous Features
The following list describes other major features:
• Designed to meet regulatory requirements. For details, see the Specifications appendix.
• Multi-language support.
• A buzzer alarm that indicates faults.
• CANopen, J1939, and an adjustable baud rate allow for seamless communication with any
node on the CANbus.
• Password protection for the following functions:
– Power on. A power-on password can optionally be specified. The power-on password is
entered with either the 3301T’s buttons or the Curtis Electronic Code Switch (ECS).
– Programming parameters for the 3301T and for other Curtis devices that are on the
CANbus or connected to the serial port. There are different passwords for the OEM and
User access levels.
– Resetting the hour meters.
Note: For additional information on the 3301T’s features, see the data sheet on the Curtis Instruments
CAN & Serial Instrumentation page at