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TU 7685 Turbidity Meter

The TU 7685 turbidity meter is a versatile turbidity instrument that demonstrates excellent sensitivity. The TU 7685 is panel-mounted in a standard 1/4 DIN cutout and is designed to be used with the TU 810 turbidity sensor.

The meter may be located up to 300 feet from the sensor. The sensor may be used with the TU 910 sensor manifold for "flow through" applications. The TU 810 sensor may also be used in a submerged orientation.


Range 0-4.000, 0-40.00, 0-400.0, 0-4000 NTU
Resolution 0.05% of Full Scale
Display Single Line LCD
Controls Digital Keyboard
Calibration Manual
Environment Working Temperature 0°C to 50°C - 0% to 95% Relative Humidity (Non-Condensing)
Relay Control Outputs Two Dry Contact Relays
Setpoints Two On/Off Setpoints
Delay Programmable
Alarm One Dry Contact Relay
Probe Cleaning Output One Dry Contact Relay
Max Relay Resistive Load 5A 220 VAC
Power 110/240 VAC 50/60 Hz
Analog Output 0-20/4-20 mA Output, Isolated
Mounting 1/4 DIN Panel Cutout
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  • Turbidity Monitoring and Control