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The ST-720 and ST-726 are uniquely designed industrial-grade inline conductivity sensors launched by Pyxis Lab Inc. that adopt the latest sensing technology with greatly improved detection range, accuracy and stability with anti-interference capabilities designed for use in complex environments. The built-in transmitter supports both digital and analog signal output, designed to simplify on-site installation, calibration and use of operation. The ST-720 and ST-726 both contain a 4-graphite electrode configuration with a scale of 1-100,000 µS/cm and 10-300,000 uS/cm respectively, allowing it to be less prone to fouling and deposition when used in challenging applications. Both maintain conductivity accuracy and precision without the need of frequent calibrations and within a 1.5% µS/cm precision level. ST-720 and ST-726 both contain an embedded Pt100 RTD temperature sensor allowing for auto-temperature compensation. The unique flat surface also makes sensor cleaning and calibration very easy. Each sensor is provided with the ST-001 in-line Tee in ¾” FNPT format. ST-720 and ST-726 may also be installed in submersed applications while using the Pyxis MA-102S Submersion Adapter. Both sensors offer two 4-20mA output signals (temperature and conductivity) with integrated transmitter as well as RS-485 modbus digital output. As with all Pyxis sensors, the ST-720 and ST-726 can be easily diagnosed, cleaned and calibrated in wireless format when used with the MA-WB or PowerPACK Series Bluetooth adapters and the uPyxis APP for mobile or desktop devices.
Typical Applications
Features
Specifications
| Items | ST-726 |
| Part Number | 53114 |
| Conductivity Range Output | 10-300,000 µS/cm, ± 10µS/cm or 1.5% |
| Temperature Range Output | 0 - 100oC (32 – 212oF) + 0.2% of the value |
| Sample Temperature | 0 - 49oC (32 – 120oF) |
| Cell Constant (K) | 0.3 |
| Sample Pressure | 0 - 100 PSI |
| Power | 12 – 36 VDC, 1W |
| Storage Temperature | -4 - 140 °F |
| Output Signal | 2X 4-20mA and RS-485 Modbus (Temperature & Conductivity) |
| Dimension | 172mm (6.8 in) long / 36mm (1.44 in) diameter |
| In-Line Installation | Includes Pyxis Tee (ST-001), ¾ inch socket or threaded FNPT with union |
| Submersed Installation | Accessory Pyxis Submersion Adapter (MA-102S), |
| Body Material | CPVC |
| Rating | IP67 |
| Regulation | CE, RoHS |
Downloads
ST-720 + ST-726 High Range Conductivity + Temperature Sensor DataSheet
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