MTS Series 793 - Manual (Page 286)

Item Callout
Upper Limit Detected 1
Specimen Breaks 2
Upper Limit 3
Lower Limit 4
About Sensor Ranges and Limit Detectors
Sensor description
Your system’s sensors convert measured mechanical values, such as force, displacement, and pressure,
into electrical signals that after conditioning, are suitable for feedback for closed-loop control. Sensors and
sensor conditioners are calibrated together in pairs against a standard to ensure that their outputs accurately
represent the physical properties they are measuring.
Sensor ranges
Every sensor has a full-scale capacity that defines its maximum operating range. For example, an actuator
that can extend its piston 6 cm from its fully retracted position is referred to as an actuator with a “6-cm stroke.”
The displacement sensor used with the actuator has a full-scale capacity of 6 cm.
Full-range conditioners
Some sensor conditioners, such as Model 493.25 Digital Universal Conditioners, are full-range conditioners.
They have only one range that spans the sensor’s full-scale capacity.
Ranged conditioners
Other sensor conditioners, such as Model 497.13 AC Conditioners and Model 497.22 Dual DC Conditioners,
may use two or more ranges. Each range defines the electronic amplitude of the sensor’s feedback signal
for the purpose of providing better signal resolution. In other words, it redefines the input channel to represent
a portion of the sensor's physical capacity.
With this type of sensor conditioner, you may create a range for any portion of the sensor’s capacity. Typical
ranges are: Range 1, 100%; Range 2, 50%; Range 3, 20%; and Range 4, 10%.
286 MTS Series 793 Control Software
Station Setup