Table of Contents
Advertisement
WP
PotentiaMeter
4C
3. Getting Started
Then:
p
pF 0.00
This is the main menu, displaying the water potential in
both MegaPascals (MPa) and pF, and the sample tempera-
ture in °C.
In order to provide the most accurate readings, WP4C
should ideally be allowed a warm-up period of 15-30 min-
utes after turning it on. When you insert a sample into the
chamber drawer and turn the drawer knob to the
"READ" position, the instrument will begin the read cycle
to measure the water potential of your sample.
Portability
On occasion you may want to take water potential mea-
surements in the field where it is not feasible to take sam-
ples and return to the lab. The following is a procedure for
powering your WP4C using your vehicle as a power source
at sites where AC power is not readily available.
1. Purchase a portable power inverter that plugs into the
12V output (cigarette lighter) of your vehicle. The
inverter should have a continuous output of at least
140 Watts.
2. Place the WP4C on a level surface. Care should be
0.00 MPa
0.0°C
10
Advertisement
Table of Contents
