C h e m i s t r y M u l t i M e a s u r e S e n s o r
Pres sure
6
012-09523B
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.
With nothing connected to the pressure port, the sensor measures atmospheric pres-
sure (about 101 kPa).
To measure the pressure in an apparatus or the included syringe, connect 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 connector (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-diameter 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 difference between the terminals of a battery or
power supply, or two points on a circuit. The voltage probe has two connectors: red and black, and two alligator clips with
insulators. The sensor measures the voltage of the red connector in reference to the black connector. Its range is
10 V.
Specifications
General
Component Sensors
Temperature, pH/ISE/ORP probe voltage, Absolute Pressure, Voltage
Max. Sampling Rate
100 samples per second (for each component sensor)
Default Sampling Rate
10 samples per second
Temperature
Range
35 °C to
135 °C
Accuracy
0.5 °C
Resolution
0.01 °C or better
Sensing Element
10 k
thermistor located in probe tip
pH/ISE/ORP probe voltage
Electrode Connector
standard BNC
Voltage Range
2000 mV to
2000 mV
Voltage Resolution
0.1 mV
pH Range
0 to 14
pH Resolution
0.001
Absolute Pressure
Range
0 kPa to 700 kPa
Accuracy
2 kPa
Resolution
0.1 kPa
Repeatability
1 kPa
Pressure
Port
Quick-release
Connector
Tubing
