ASD HandHeld 2: Hand-held VNIR Spectroradiometer
The low-cost, easy to use, visible-near infrared (VNIR) alternative to the full-range FieldSpec 4 product line
The ASD FieldSpec® HandHeld 2 hand-held spectroradiometer is the low-cost, easy to use, visible-near infrared (VNIR) alternative to the full-range ASD FieldSpec 4 product line. The Handheld 2 is a versatile and durable hand-held spectroradiometer that utilizes the ASD FieldSpec 4 VNIR spectrometer for accurate analysis in the 325 – 1075 nm spectral range.
The ASD HandHeld 2 provides the ideal combination of performance, portability, and durability. The ASD HandHeld 2 spectroradiometer employs a high-sensitivity detector array, a low stray light grating, a built-in shutter, DriftLock dark current compensation, and second-order filtering to produce a high signal-to-noise spectrum in under a second.
Field data acquisition is streamlined with embedded remote sensing software. The results are shown on an integrated, high-visibility color display making sample collection simple, in challenging areas without the worry of carrying a computer.
When connected to a computer, the full range of RS3 spectral data processing features is available.
Designed with an ergonomic dual position “D” handle, the hand-held spectroradiometer is equally suited for right or left-hand operation. Compact, rugged and light-weight, the ASD HandHeld 2 weighs 1.17 kg (under three pounds) including batteries.
With a wavelength range of 325 nm – 1075 nm, an accuracy of ±1 nm and a resolution of <3 nm at 700 nm, the HandHeld 2 hand-held spectroradiometer delivers unsurpassed performance and helps expedite fieldwork and reduce errors associated with changing environmental conditions.
The optional GPS accessory records GPS coordinates with each collected spectrum and eliminates the need for external location record keeping.
In addition to being an easy-to-use spectroradiometer, the Handheld 2 can serve as a VNIR-only hand-held spectrometer when used with a fiber optic cable and contact probe accessories.
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ASD HandHeld 2: Hand-held VNIR Spectroradiometer
Probes and Lighting
The ASD Contact Probe is designed for contact measurements of solid raw materials such as minerals, grains, other granular materials. Its innovative optical design minimizes measurement errors associated with stray light and allows for measurement of samples through clear and transparent plastic bags.
In addition to the standard contact probe, ASD also offer the Hi-Brite contact probe and the Plant Probe.
All contact probes are available with a ruggedized cable feed and cable, designed for applications that involve extra cold or harsh temperatures. (see image below specifications)
Specifications:
| Length | 10" ( 25.4 cm) |
| Weight | 1.5 lbs (.7 kg) |
| Power requirements | 12-18 VDC, 6.5 W |
| Lightsource type/Life (approx.) | Halogen bulb/1500 hours |
| Halogen bulb color temperature | 2900 K |
| Spot size | 10 mm |
The same design, features, and benefits of ASD's standard contact probe, but with a higher intensity illumination setting on the sample window. This higher intensity illumination is ideal for inorganic applications, and is recommended for mineral and ore characterization in mining exploration and research applications using the TerraSpec®, FieldSpec® 4 Hi-Res and LabSpec® Hi-Res spectrometers.
The same great design and functionality as ASD's standard contact probe
with a lower intensity bulb position for non-destructive data collection from live vegetation and other heat sensitive targets.
ASD's Leaf Clip assembly is designed specifically for use with the Plant Probe to simplify the process of collecting spectra on live vegetation. The unique design includes a gentle trigger lock/release gripping system for holding the target sample in place without removing the leaf from its habitat, or inflicting damage.
General Accessories
ASD offers multiple pistol grip options for superior ease-of-use and adaptability to a variety of environmental and situational elements, when using your FieldSpec® and FieldSpec HandHeld instruments. All pistol grip designs include the quick-connect/disconnect fiber optic cable snap-in feature, pistol grip clip assembly for safely and securely affixing the pistol grip to your waist-belt on the back pack, and many offer a built-in bulls-eye level for added precision.
Fore Optics
The Equatorial Mount is used to maintain the orientation of the Direct Irradiance Attachment (sold separately) and the Full Sky Irradiance RCR (sold separately) relative to the sun.
Once the mount is manually aligned with the Earth's rotational axis and proper solar alignment is obtained using the directional keypad, this mount scans in synchronization with the motion of the sun through the sky.
The mount is powered by a rechargeable 12 volt gel cell battery pack included with the mount. The heavy duty tripod on which the mount is installed is also included. The FieldSpec® spectrometer is mounted on a tripod (available separately). The tripod tray is not a standard item.
For use with all FieldSpec® and HandHeld models.
Reference Panels
ASD carries a wide array of calibrated and non-calibrated diffuse white and gray reference panels in varying sizes (from 2 x 2 in. to 12 x 12 in. or 5.1 x 5.1 cm to 30.5 cm x 30.5 cm) and reflectance levels, including encapsulated gray scale (NIST/NRC traceable) wavelength and USP standards for USP 1119. Calibrated panels come with certificate and documentation showing standard deviation and reflectance factors.
All reference panels and standards may be purchased separately. To provide our customers with a more cost-effective approach, specific sizes or styles of reference panels are included in accessory bundles designed for maximum compatibility with a particular application.
Your ASD sales representative will be able to advise you on the best option(s) for your needs.