PYXIS PROBES AND HANDHELDS

The Pyxis ST-500 inline fluorometer probe is designed to measure the concentration of fluorescence tracer PTSA in cooling water.

The Pyxis SP-900 redefines the portable water analyzer by emphasizing all-in-one convenience and accuracy while allowing water treaters the ability to use customized private labeling for their PTSA products.

About Pyxis

Pyxis is dedicated to offering cutting edge instruments and chemicals for customers in the water treatment industry. Their products are designed for experienced professionals who are seeking the latest and best technology.

Pyxis ST-500 Inline Fluorometer

Overview

The Pyxis ST-500 inline fluorometer probe is designed to measure the concentration of fluorescence tracer PTSA in cooling water. Its state-of-the-art design utilizes a unique optical design of a short fluidic channel and an advanced compensation algorithm. Calibration is quick and simple at any concentration from 40 to 200 ppb without the need to remove the probe from the tee.

It also provides additional information on working conditions such as LED performance, temperature, turbidity, and color information via MODBUS registers. The ST-500 can also handle high turbidity and high color water samples. Testing has shown that it can survive in tough water conditions with turbidity readings of 180 NTU.


ST-500 Inline Fluorometer Specifications

PTSA Range: 0 to 300 ppb (uncertainty ±1 ppb or 1%, 3 sigma)
Detector: GaP photodiode
Power Supply: 22 – 26 VDC
Power consumption: 65 mA at 24 V
Signal Output: 4-20 mA Modbus RTU
Sample Temperature: 40 – 104 °F (4 – 40 °C)
Operation Temperature: 40 – 120 °F (4 – 49 °C)
Storage Temperature: 20 – 140 °F (-7 – 60 °C)
Sample Pressure: Up to 100 PSI
Cable Length: 5 feet, terminated with IP67 connectors
Dimension: Length 6.8 inch (172.7 mm), body diameter 1.44 inch (36.6 mm)
Weight: 0.37 pounds (170 grams) without tee

Features and Benefits

Easy to Install

  • No tools needed
  • Custom tee with ¾ inch NPT ports

Easy to Operate

  • 4-20mA or MODBUS on RS-485
  • Auto color / turbidity compensation
  • Historical data download

Easy to Calibrate

  • Calibrate at any concentration from 40 to 300 ppb of PTSA
  • Calibrate via USB-485 on PC (optional)
  • Calibrate via smart phone (soon)

Easy to Maintain

  • Five minute cleaning per month with a soft brush/Q-tip
  • Often operates for three months without attention

Pyxis SP-900 Portable Water Analyzer

Overview

The Pyxis SP-900 redefines the portable water analyzer by emphasizing all-in-one convenience and accuracy while allowing water treaters the ability to use customized private labeling for their PTSA products.

Accuracy

Cooling tower water is often colored and/or has varying amounts of turbidity. Interference can also be introduced to fluoresce readings from optical absorbance and scattering. Pyxis Lab has developed proprietary technology to improve the robustness of fluorescence measurement by utilizing a premium optical design and advanced compensation algorithm.

Customization

Pyxis Lab designed the SP-900 to focus on customization for the water treatment industry. Water treaters can choose to display product concentration in ppm rather than PTSA in ppb. The SP-900 allows for up to five user definable product names and coefficients with display formatted based on the user’s preference. Private labeling, including a product logo and pre-programmed private product names, is also available.


Pyxis SP-900 Portable Water Analyzer Specification

Colorimeter Wavelength: 420,525, 560, 570, and 610nm
Turbidity Excitation Wavelength: White LED
Fluorescence Excitation Wavelength: 365 nm LED
Fluorescence Emission Wavelength: 410 nm
Wavelength Accuracy: ±1 nm
Absorbance Reproducibility: 0.005 au in the range of 0 to 1.0 au (3 sigma)
Absorbance linearity range: 0 to 1.0 au
Turbidity Reproducibility: 2 NTU (3 sigma)
Fluorescence Reproducibility: 1 ppb PTSA (3 sigma)
Fluorescence Detection Limit: 1 ppb
Turbidity Detection Limit: 2 NTU
Battery: 4 AA alkaline
Typical Battery Life: 3 months
Display: Dot-matrix LCD display, visible under direct sunlight
Dimension: H265 W88 H69 (mm)
Weight: 600g (without batteries)
Temperature Range: 40 to 106 ℉ (4 to 41 ℃)
Humidity: 85% at 106 ℉ (41 ℃)
Environmental: IP67, dustproof and waterproof

All-In-One Convenience

The SP-900 features an intuitive graphical design with a minimal amount of keys. With the SP-900 designed as an all-in-one product, water treaters can reduce the number of devices needed for testing. The SP-900 works as:

A Fluorometer

  • Fluorescence (PTSA): 1~300 ppb
  • <1 ppb reproducibility

A Colorimeter

  • Up to 7 LED light sources
  • 365, 420, 455, 525, 560, 570, and 630 nm
  • Linear Range: 0~1 au with 0.005 reproducibility
  • Compatible to Hach®1 methods

A Turbidimeter

  • 2~200NTU with 2NTU reproducibility
  • White LED excitation @ 90 degree scattering

And More (advanced features are optional)

  • Chlorine dioxide, direct reading, 0 to 35 ppm
  • Fluorescein for boiler application
  • Pyxis product specifications are subject to change without notice with Pyxis’ continuous development

Pyxis Contact Info

info@pyxis-lab.com · www.pyxis-lab.com