PASCO PS-2170 Chemistry MultiMeasure Sensor - Manual (Page 5)

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M o d e l N o . P S - 2 1 7 0 P r e s s u r e
5
Pressure
This component of the multi-sensor measures absolute gas pressure
from 0 kPa to 700 kPa. The measurement can be displayed in units of
kPa, N/m
2
, pounds per square inch (p.s.i.), atmospheres (atm), or torr.
(In DataStudio, click the Setup button to change units.)
With nothing connected to pressure port, the sensor measures atmo-
spheric pressure.
To measure the pressure in an apparatus or the included syringe, con-
nect it to the sensor using the included tubing and connectors. Insert the
barbed end of a quick-release connector into a piece of tubing. Push the
quick-release connector onto the sensor’s pressure port and twist it
clockwise to secure it. If your apparatus has a barbed or tapered connec-
tor (such as the included syringe), plug it directly into the other end of
the tubing. If the apparatus has a quick-release pressure port, use
another quick-release connector on the other end of the tubing. Use one
of the included tubing connectors to connect the tubing to larger-diame-
ter tubing or to a rubber stopper with a hole.
Note: Do not allow liquid to enter the pressure port.
Voltage
Use the voltage component of the multi-sensor to measure electric potential differ-
ence between the terminals of a battery or power supply, or two points on a circuit.
The voltage probe has two connectors: red and black. The sensor measures the volt-
age of the red connector in reference to the black connector. Its range is
±10 V.
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PRESSURE
pH/ISE/ORP
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