AD375MA: Absolute shaft encoder for water level

AD375MA: Absolute shaft encoder for water level

AD375MA absolute shaft encoder for accurate water level measurement in surface water and groundwater applications. It provides parallel data output via 4 to 20 mA and SDI-12, features LCD display with local configuration and supports reliable operation in harsh environments.
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Resolution
  • 1 mm (maximum error +/-1 mm)
  • 375, 150 or 100 pulses per revolution (user adjustable)
Accuracy +/-0.01 % FS
Range Typical up to +/-30 m water head; endless wire set-up available for water level ranges exceeding 30 m
LCD Type 16×2 character LCD (or OLED on request for -40 °C operation)
Shaft Load Max 2 kg (adaption to higher loads available on request)
Power Supply
  • Operating: 9.0-16 V DC
  • Current Drain: 5 mA @ 12 V DC
  • Internal lithium battery (not supplied)
Enclosure IP54 powder-coated aluminium
Connectors Available with either a push-in-style connector or an IP65 8-pin connector
Operating Conditions Temperature Range

  • -40 °C to +60 °C (encoder only)
  • -10 °C to +60 °C (standard LCD; -40 °C OLED version available on request)

Humidity: 95 % non-condensing

Dimensions (L x W x D) 245 x 125 x 150 mm
Mass 1.8 kg (3.9 lb)
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AD375MA in front perspective with front panel
AD375MA – Absolute shaft encoder for water level
Absolute shaft encoder for water level measurement
  • 1 mm high-resolution accuracy
  • Absolute water level
  • Simultaneous SDI-12 and 4–20 mA output
  • Built-in LCD display and function buttons for user configuration
  • Standard AD375MA and AD375MAC IP65 fully sealed model available with an 8-pin connector.
  • A -40 °C OLED LCD screen is available on request.
  • Compatible with KISTERS beaded line and beaded line pulleys, eliminating errors due to slippage
  • Configurable resolution (pulses per revolution).
  • Internal battery backup
  • Robust construction
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