Key facts
- Brand
- EXTECH
- Model
- RH300-CAL
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-08-01
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Extech RH300-CAL Relative Humidity Calibration Reference Standards Information Sheet
The Extech RH300-CAL is a Relative Humidity Calibration Reference Standard designed for use with Extech RH300 Humidity Meters. The kit includes two bottles: one providing a 75% Relative Humidity reference using Sodium Chloride (NaCl) and another providing a 33% Relative Humidity reference using Magnesium Chloride (MgCl).
The document provides specific Relative Humidity reference values for both standards at various temperatures ranging from 50°F to 95°F. It also outlines care instructions, noting that the reference bottles must be kept tightly sealed when not in use and should be replaced immediately if the contents dry out or harden.
EXTECH RH300-CAL specifications
| 75% Reference Standard Composition | Sodium Chloride (NaCl) |
|---|---|
| 33% Reference Standard Composition | Magnesium Chloride (MgCl) |
| 75% RH at 68°F (20°C) | 75.47% |
| 33% RH at 68°F (20°C) | 33.07% |
Source: Extech RH300-CAL Relative Humidity Calibration Reference Standards Information Sheet
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Questions answered in these manuals
What chemicals are used in the RH300-CAL standards?
The 75% reference uses Sodium Chloride (NaCl) and the 33% reference uses Magnesium Chloride (MgCl).
From: Extech RH300-CAL Relative Humidity Calibration Reference Standards Information Sheet
What is the Relative Humidity of the 75% standard at 75°F?
The Relative Humidity is 75.29% at 75°F (24°C).
From: Extech RH300-CAL Relative Humidity Calibration Reference Standards Information Sheet
What is the Extech 445580 used for?
It is a compact, digital hygro-thermo meter ideal for field use that measures temperature and relative humidity simultaneously.
What are the stated dimensions of the Extech 445580?
The device measures 5.7x1.2x1 inches, which is equivalent to 145x30x25 millimeters.