Pyxis 53201, Руководство пользователя, Страница: 4 / 17

1 Introduction
The Pyxis ST-730 series is a variety of pre-scaled inline probes all measuring turbidity in water using a white
LED as the excitation light source and by measuring the scattered light at a 90-degree angle with respect to
the excitation beam. The fluidic and optical arrangement of the ST-730 series probe is designed to overcome
many shortcomings associated with other inline turbidimeters. It can be easily inserted into the custom-
made tee with a compression fitting port designed to ensure correct vertical positioning of the ST-730 series
probe in the fluid stream. The ST-730 series probe custom mounting tee has two ¾ inch female NPT ports
for plumbing into an existing ¾ inch sample water line. The ST-730 series probe can be connected to any
device that accepts an isolated or non-isolated 4-20mA input or RS-485 Modbus input. The ST-730 series
probe has a short fluidic channel that can be easily cleaned and calibrated using the MA-WB Bluetooth
adapter and
uPyxis® Mobile or Desktop App.
2 Specifications
Specifications ST-730 ST-730B ST-730SS ST-731 ST-735
P/N 53201 53202 50626 53505 53204
Range (NTU) 0-100 0-1,000 0-100 0-10 0-10,000
Resolution (NTU) 0.1 1 0.1 0.05 10
Accuracy ±2% of reading
Method Nephelometric, with white LED and IR LED (860 nm) light sources
Calibration Two-point calibration against standard solution
Outputs 4-20mA Analog Output, RS-485 Digital Output with Modbus protocol
Installation
*
Custom tee assembly (P/N: ST-001) with 3/4” female socket & NPT threaded ports
Cable Length 5 ft, with IP67 connectors. 30 ft and 60 ft extension cables available
Power Supply 22-26 VDC, 1 W
Dimension inch (mm) Length: 6.8 (172.7), Body Diameter: 1.44 (36.6)
Weight lbs(g) 0.37 (170) 0.37 (170) 2.5 (1130) 0.37 (170) 0.37 (170)
Material CPVC CPVC 304 Stainless Steel CPVC CPVC
Operational Tempera-
ture °F (°C)
40-120
(4-49)
40-120
(4-49)
32-104 (0-40) 40-120
(4-49)
40-120
(4-49)
Storage Temperature °F
(°C)
20-150 (-7-66)
Pressure psi (MPa) Up to 100
(0.7)
Up to 100
(0.7)
Up to 290 (2.0) at 149 °F
(65 °C)
Up to 100
(0.7)
Up to 100
(0.7)
Enclosure Rating IP66
Regulation CE
* The ST-730SS probe does not come with the custom tee assembly (P/N: ST-001). It has 3/4” female NPT threaded ports on the probe
itself.
3 Unpacking Instrument
Remove the instrument and accessories from the shipping container and inspect each item for any damage
that may have occurred during shipping. Verify that all accessory items are included. If any item is missing
or damaged, please contact Pyxis Lab Customer Service at
service@pyxis-lab.com .
ST-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397 2