Prostat PRF-930 - Powder Fixture Set

Name: Prostat PRF-930 - Powder Fixture Set
Brand: Prostat
SKU: ProstatPRF-930 Set
Price: 995.00 USD
Availability: InStock

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Powder Fixture Set

Measure the resistance of powders and granulated materials
Meets the requirements of NIOSH-TR-No. 42
Includes caliper, spoon and brush
Grounding accessories included
Ideal for chemical, pharmaceutical, food and beverage industries
Certificate of calibration traceable to NIST included

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Description

Prostat PRF-930 - Powder Fixture Set

Resistance of Powder and Granulated Materials

The PRF-930 Powder Resistance Fixture measures the bulk resistance of powder and granulated materials. Test material is placed in the cavity between the measurement plates. Once a measurement has been made in ohms, a fixture calculation, or correction factor converts the resistance measurement to volume resistivity in ohm-cm.

Superior Accuracy

The PRF-930 provides the most accurate measurements when used with a precision wide range resistance instrument, such as the PRS-801B Resistance System, or equivalent laboratory system. For guarded plate measurements use an instrument ground reference.

Occupational Safety and Health JNIOSH-TR-No. 42

The PRF-930 Powder Fixture meets the requirements of “Technical Recommendations of National Institute of Occupational Safety and Health JNIOSH-TR-No. 42 (2007) Recommendations for Requirements for Avoiding Electrostatic Hazards in Industry 2007”

In The Box

Manuals/Guides

Manufacturer Specs

Specifications for the PRF-930 Advanced Powder Fixture
Basic Description	Acrylic frame fixture with opposing power and concentric ring measurement plates for resistance measurement of small volumes of powder and granulated materials. Correction Factor (CF) is used to convert bulk resistance measurement to volume resistivity in ohm-cm.
Upper Resistance Limit	Nominal 1.0x1014 ohms ±20% @ 500 Volts, 71o F (21.7o C), 18% Rh, Clean, empty fixture. Note that most resistance measure-ments are made at 100 volts and below.
Material Capacity	Approximately 1.0 Tablespoon (US) (15 cm³)
Correction Factor (CF) to Ohm-cm	Based on: Where, ρ = Volume Resistivity in ohm-cm R= Resistance obtained from the material measurement in ohms A= Area of the fixture’s center plate in cm2 d= Distance in cm between the measurement and power plates and, ρ = R (CF) Where, ρ = Volume Resistivity in ohm-cm R= Resistance obtained from the material measurement in ohms CF= Correction Factor (Area [A] of the fixture’s center plate in cm2 divided by Distance [d] in cm between the measurement and power plates. Typical CF Range 4.6 cm to 4.9 cm, Typical 4.75 cm
Approximate Fixture Dimensions	Note:Dimensions vary slightly from fixture to fixture as they are hand polished and assembled. Temperature and humidity will affect fixture dimensions. Approximate dimensions as follows: W 2.36 in (60 mm) x D 1.25 in (32 mm) x H 2.25 in (57 mm)
Approximate Fixture Weight	12.35 oz (250 gm)