WP
4
PotentiaMeter
Introduction
1
1. Introduction
Welcome to Decagon’s WP4 Dewpoint PotentiaMe-
ter, the research standard for measuring water
potential. WP4 is the fastest, most accurate, and
most reliable instrument available for measuring
water potential using the chilled-mirror dewpoint
technique. Whether you are a scientist or a student,
WP4 will suit your needs. It is easy to use and pro-
vides fast, accurate results. We hope you find this
manual informative and helpful in understanding
how to maximize the capabilities of your WP4.
About this Manual
This manual is for use with the standard model WP4
and the temperature-controlled model WP4-T.
Included in this manual are instructions for setting
up your WP4, calibration, and maintaining and car-
ing for your instrument. Please read these instruc-
tions before operating WP4 to ensure that the
instrument performs to its full potential.
Customer Service
If you ever need assistance with your WP4, or if you
just have questions, there are several ways to con-