Cooper Instruments & Systems LXT 981 Torque Sensor - Manual (Page 11)

CF 189 11 Rev. E; Dec. 12, 2011
Tare function and error indication:
The LXT 980/981 contains a LED button on the housing surface. Pressing the button will set the signal
output to 5V. The illumination of the button serves as a function / malfunction indicator.
Functional indicator:
LED off:
Missing power supply or sensor is damaged.
LED on: Sensor is ready.
Error indicator:
LED flashes: The sensor is not ready.
Flashing of LED can have several possible causes. Various causes are interpreted through a flash code.
After each flash code the LED makes a short pause before repeating the code.
2x flashing:
Magnet field sensors defective.
4x flashing: Electronics defective.
8.9 Service / Maintenance
Service-contact:
Tel.: 800-344-3921
Fax: 540-347-4755
8.10 Disposal
For purposes of disposal please send the device back to Cooper Instruments.
8.11 Handling and Transport
While handling, storing and transporting keep sensor away from magnetic and electromagnetic fields
which may exceed the allowed maximum range of EMC listed in Section 3.0, “Technical Characteristics of
the Sensor.”
8.12 Precautions
• Do not open the sensor under any circumstances.
• Do not remove or loosen the locking rings on the shaft ends.
• The mounting nut of the socket as well as the fixing screws should not be loosened or tightened.
• Use only a separate power supply for the sensor
• Use the sensor only according to the specification (Section 3.0 - Technical Characteristics of the
Sensor).
• Keep the sensor away from magnetic and electromagnetic fields which may exceed the allowed
maximum range of EMC (Section 3.0 - Technical Characteristics of the Sensor)
• The sensor is not designed as a step bearing. The existing fixing possibilities serve exclusively for
preventing the sensor from distortion.
9.0 CALIBRATION AND ACCURACY CLASS
The exact data about the sensor is given in the enclosed factory calibration certificate. Except the sensor
type this certificate also contains the exact calibration data. Each sensor has its own calibration value