Water Activity Meter Replacement Sensor Filter
The Heathrow Scientific 47001-FILTER Replacement Sensor Filter provides mechanical protection for the capacitive humidity sensor in the Heathrow Scientific 47002 Water Activity Meter. Supplied in a pack of 10, these filters prevent sample material from contacting and contaminating the sensor element, preserving measurement accuracy and extending sensor service life.
Filters should be replaced when visibly dirty, displaced, or at regular intervals determined by your facility's testing volume and sample types. Maintaining clean filters is essential for achieving the meter's rated ±0.01 aw accuracy specification.
Technical Specifications
| Property | Specification |
|---|---|
| SKU | 47001-FILTER |
| Type | Capacitive Sensor Filter |
| Compatibility | Heathrow Scientific 47002 Water Activity Meter (Capacitive Sensor) |
| Quantity | Pack of 10 |
| Weight | 0.4 lb (181 g) |
| Country of Origin | Japan |
Laboratory Applications
Laboratories testing powdered food products, pharmaceutical excipients, or fine particulates should replace sensor filters more frequently than facilities testing liquids, as particulate matter accelerates filter contamination. Maintaining a stock of replacement filters prevents unplanned instrument downtime during critical testing windows.
Volume Discounts
LabSupplies.com offers below retail pricing with volume discounts available. As an authorized dealer, we ship directly from USA inventory.
Frequently Asked Questions
How often should water activity meter sensor filters be replaced?
Replace the sensor filter when it becomes visibly dirty, detaches from the sensor, or when measurement readings become inconsistent. The Heathrow Scientific 47002 Water Activity Meter Kit includes five replacement filters. Facilities testing powdered or particulate samples may need monthly replacement, while liquid-only testing environments can extend filter life to quarterly intervals.
Is this filter compatible with the alcohol sensor?
No. This filter (47001-FILTER) is designed exclusively for the standard capacitive sensor. For the electrical resistance (alcohol) sensor, use the 47001-ALFILTER Replacement Alcohol Sensor Filter instead. Using the wrong filter type may result in inaccurate readings or sensor damage.
How many filters come with the water activity meter kit?
The Heathrow Scientific 47002 Water Activity Meter Kit includes five replacement sensor filters. This 47001-FILTER pack provides 10 additional filters. For facilities performing daily testing, ordering replacement filters alongside your initial meter kit purchase ensures uninterrupted operation.