Measures stage (level) of rivers, streams, reservoirs, and other bodies of water

• Revolves one rotation of the 5/16 in. input shaft into 400 increments
• Low power (less than 2.5mA from a 12VDC supply @ 2.5 rev/sec)
• Uses solid state, low power optical sensor technology
• Low starting torque (less than 0.25 ounce/inch)
• Surge protected
• Externally accessible, internal back-up battery. Can use standard AA battery.
• Accepts commands and returns data in the industry standard SDI-12 format, allowing it to interface with dataloggers that have SDI-12 communications ports such as the Xpert Datalogger
• User selectable resolution.
• User specified scaling (Does not require specific circumference wheel).
• User selectable direction for increasing counts (CW or CCW).
• 32 bit resolution counter.
• Range limited by SDI-12 to 7 digits. With 2 decimal place resolution, +99999.99. With 3 decimal place resolution, +9999.999.
• Programmable rate of change tracking. Factory default 2.5 rev/sec.
• Built-in 2 line by 8 character LCD display with backlight
• Internal back-up battery voltage readable via SDI-12
• Excessive shaft speed indicated on display.
• Display turned on by depressing “DISPLAY” button
• Display is continuously update with current value.
• Communications interfaces: SDI-12, SDI-12 protocol over RS-485, RS-232
• Double bearing design to support up to 10 lbs on the shaft.

Ordering Information

56-0540-400-DTR Ruggedized.
SDI 12 Shaft Encoder, 400 count resolution with display and terminal strip

Accessories Ordering

5100-0560
Tape, perforated steel (inches)

5100-0502
Float wheel, perforated tape, for 5/16 in. shaft, 1 ft./revolution (nylon insert)

5100-0530-1
Float, 6 inch copper

5100-0530-2
Float, 6 inch PVC

5100-0550
Counterweight, 8 ounces 5100-0620-1 End hook set