4. Quickstart 
The following tutorial introduces the CR800 by walking you through a 
programming and data retrieval exercise. 
 
4.1  Sensors — Quickstart 
Related Topics: 
 •  Sensors — Quickstart (p. 35)   
 •  Measurements — Overview
 (p. 64)   
 •  Measurements — Details
 (p. 311)   
 •  Sensors — Lists
 (p. 567)   
Sensors transduce phenomena into measurable electrical forms by modulating 
voltage, current, resistance, status, or pulse output signals.    Suitable sensors do 
this accurately and precisely
 (p. 522). Smart sensors have internal measurement 
and processing components and simply output a digital value in binary, 
hexadecimal, or ASCII character form.    The CR800, sometimes with the 
assistance of various peripheral devices, can measure or read nearly all electronic 
sensor output types. 
Sensor types supported include: 
•  Analog 
o  Voltage 
o  Current 
o  Thermocouples 
o  Resistive bridges 
•  Pulse 
o  High frequency 
o  Switch closure 
o  Low-level ac 
•  Period average 
•  Vibrating wire 
•  Smart sensors 
o  SDI-12 
o  RS-232