VH400 Soil Moisture Sensor Probe Specifications
Power consumption: < 13mA
Supply Voltage: 3.5V to 20 VDC.
Dimensions See drawing.
Power on to Output stable: 400 ms
Output Impedance: 10K ohms
Operational Temperature: -40ºC to 85ºC
Accuracy at 25°C: 2%
Output: 0 to 3V related to moisture content
Shell Color: Red
Voltage Output Curves: Curves, Piecewise...
A miniature, value-priced, waterproof data logger for temperature and light monitoring applications; stores 52K measurements.
IMPORTANT INFORMATION
Requires HOBOware software and either an Optic USB Base Station or a HOBO Waterproof Shuttle (U-DTW-1).
HOBOware Pro is required when using the HOBO Waterproof Shuttle. See compatible items below.
The PolyPen-Aqua PA 210 is a portable, handheld, and affordable spectrophotometer. It is convenient for quick and reliable measurements of absorbance and transmittance in liquid samples between 380 – 790 nm and 640 – 1050 nm respectively. Samples are measured in standard cuvettes. The PA 210 features an inbuilt GPS module and can be used as a self-contained instrument for various field applications.
PolyPen-Aqua PA 210 The PolyPen-Aqua PA 210 is a reasonably priced, portable, hand-held spectrophotometer designed to measure spectra in suspensions. It can be favorably used in a wide range of applications: biotechnology, limnology, ecology, molecular biology, chemistry, forensic science, etc. The device is convenient for both standard laboratory work and field work, making good use of its built-in GPS unit. The PolyPen-Aqua measures absorbance and transmittance spectra based on a single beam method; the detection range is 380 to 790 nm and 640 to 1050 nm. The device is equipped with an internal light source – xenon incandescent lamp.
The PolyPen-Aqua can be used as a stand-alone instrument. It is powered by a built-in rechargeable lithium-ion battery and therefore does not require a PC or any other bulky accessories for operation. The measured spectra are instantly displayed in graphs or data sheets on the device's touch screen. The complete spectrum information is stored in the device's memory for later analysis on a PC. The important part of the PA 210 package is the control software. It allows easy online control of the device as well as storage, loading and further processing of the measured data on a PC. It is also possible to define custom calculated parameters based on the measured spectra. APPLICATIONS Qualitative and quantitative analysis of liquids and solutions Growth monitoring of autotrophic and heterotrophic microorganisms Vital spectra of cell suspensions Pigment composition Protein analysis
Key Features Sophisticated portable alternative to benchtop spectrophotometers Inexpensive, lightweight, stand-alone device Suitable for laboratory and field applications Programmable via intuitive touchscreen Full-featured, easy-to-use software allows programming of custom calculations Integrated GPS module
POLYPEN-AQUA MEASUREMENTS Absorbance spectrum, calculated with the following formula A=log(I0/I) I0 is the reference light intensity and I is the measured light intensity Transmittance spectrum, calculated with the following formula T= I/ I0 I0 is the reference light intensity and I is the measured light intensity Optical density measurement at 600 nm, 680 nm, 720 nm and 750 nm Custom calculation SOFTWARE Online control of the PolyPen-Aqua device GPS mapping plug-in Display of full spectra as well as parameter table calculated Possibility of calculating custom indices Different modes of operation: oscilloscope, absorbance, transmittance Different tools: zoom, marker, automatic scale, curve smoothing Data navigation and averaging Data transfer routines to Microsoft Excel SpectraPen 1.1 software (compatible with Windows, XP or higher)
Versions PolyPen-Aqua PA 210/UVIS Portable handheld spectrophotometer intended for measuring spectra in suspensions. Detection range is is 380 – 790 nm. The device is equipped with an internal light source - Xenon incandescent lamp. PolyPen-Aqua PA 210/NIR Portable handheld spectrophotometer intended for measuring spectra in suspensions. Detection range is is 640 – 1050 nm. The device is equipped with an internal light source - Xenon incandescent lamp.
Accessories Control and Data Unit for Handheld Devices Small, portable notebook (type according to current availability on the market). ASK FOR PRICES Set of 10 Cuvettes for PolyPen-Aqua Set of ten plastic 4 ml cuvettes used in the PolyPen-Aqua.ASK FOR PRICES
SPECTRUM MEASUREMENT
Spectral range 380 nm – 790 nm (PA 210 UVIS)
640 nm – 1050 nm (PA 210 NIR)
Spectral response half width 8 nm
Spectral straylight -30 dB
Scanning speed About 100 ms
Dynamic range High gain: 1:4,300
Low gain: 1:13,000
Size of aperture 7 mm
LIGHT SOURCE
Type Xenon incandescent lamp
Spectral range 380-1050 nm
SYSTEM SPECIFICATION
Internal memory capacity 16 Mbit
Internal data logging Up to 4,000 measurements
Real-time clock Yes
Data transfer USB 2.0
PC software SpectraPen 1.1 (Windows 7 and higher)
BATTERY
Type Li-Ion rechargeable battery
Capacity 2600 mAh
Max. charging current 0.5 A
Charging Via USB port - PC, power bank, USB charger, etc.
Battery life 48 hours typical with full operation
Low battery indicator
GENERAL SPECIFICATION
Sample holder 4 ml cuvette
Display Touchscreen 240 x 320 pixel; 65535 colors
Built in GPS module Ultra-high sensitivity down to -165 dBm
High accuracy of <1.5 m in 50 % of trials
Size 150 x 75 x 40 mm
Weight 300 g
Operating conditions Temperature: 0 to +55 °C
Relative humidity: 0 to 95 % (non-condensing)
Storage conditions Temperature: -10 to +60 °C
Relative humidity: 0 to 95 % (non-conden
Product Details
PolyPen-Aqua PA 210/UVIS
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The PolyPen-Aqua PA 210 is a portable, handheld, and affordable spectrophotometer. It is convenient for quick and reliable measurements of absorbance and transmittance in liquid samples between 380 – 790 nm and 640 – 1050 nm respectively. Samples are measured in standard cuvettes. The PA 210 features an inbuilt GPS module and can be used as a self-contained instrument for various field applications.
