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Pyxis ST-731-NT Inline Turbidimeter (Low Range, No Tee Assembly)

Inline turbidimeter, low range (0-10NTU), sensor only, no tee kit. 4-20mA + RS-485, 7-pin.

Pyxis
Optical Sensor
Inline Sensors

Pyxis ST-731-NT Inline Turbidimeter (Low Range, No Tee Assembly)

Model:
ST-731-NT
Brand:
Pyxis

The Pyxis ST-731-NT is a low-range inline turbidimeter for monitoring process and treated water clarity across 0-10NTU, supplied as sensor only without the tee assembly kit. It outputs both 4-20mA analog and RS-485 Modbus signals via a 7-pin connector, suited to installations with an existing compatible tee fitting.

Low-range sensitivity — resolves turbidity from 0-10NTU for very clear or finished water
Sensor-only configuration — no tee assembly included, for use with an existing tee fitting
Low-range sensitivity — resolves turbidity from 0-10NTU for very clear or finished water

Description

The Pyxis ST-731-NT is a low-range inline turbidimeter for monitoring process and treated water clarity across 0-10NTU, supplied as sensor only without the tee assembly kit. It’s intended for installations that already have a compatible tee fitting in place.

It outputs both 4-20mA analog and RS-485 Modbus signals via a 7-pin connector, matching the standard ST-731 in measurement range and connectivity.

This configuration suits buyers replacing a low-range sensor without duplicating tee hardware.

Why Use This

Fine Clarity Resolution

The low range (0-10NTU) suits monitoring very clear or finished water.

Flexible Installation

Supplied as sensor only, without the tee assembly kit, for use with an existing compatible tee fitting.

Flexible System Integration

4-20mA analog and RS-485 Modbus outputs support integration with control systems.

Applications

  • Sensor replacement for finished water installations — where a tee fitting is already in place
  • Post-filtration clarity monitoring — low-range turbidity tracking in finished water
  • Cost-efficient retrofit sensor swaps — avoiding duplicate tee assembly hardware

FAQ

What’s different about the ST-731-NT versus the ST-731?

The ST-731-NT is supplied as sensor only, without the tee assembly kit, for use where a compatible tee fitting is already installed.

What turbidity range does it cover?

0-10NTU, the same low range as the standard ST-731.

What outputs are available?

4-20mA analog and RS-485 Modbus, via a 7-pin connector.

Download

D25 Product Datasheet
PDF · 1.2 MB
Installation Manual
PDF · 0.8 MB

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