User's Manual

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Instruction Sheet

No. 012-08734A

Thermocline Sensor

Model PS-2151

PS-2151

Thermocline

Sensor Head

Sensor Amplifier

Description

The PASCO Model PS-2151 Thermocline Sensor

allows students to study the relationship between

depth and temperature in a body of water.

The sensor head has two sensors built into a

watertight housing: a depth sensor and a tempera-

ture sensor. It has a 10 m cable with a connector

that plugs into the amplifier box. The amplifier

box, in turn, plugs into your PASPORT interface.

The depth sensor is a

gauge-type pressure sen-

sor with a stainless steel

housing and a stainless

steel diaphragm. The

entire sensor head is

designed to resist the

corrosive effects of salt

water.

Operation

Connect the Thermocline Sensor head to the

amplifier box. Connect the amplifier box to a

PASPORT interface. If you will use a computer to

collect data, connect the interface to the computer

and start DataStudio.

Start data recording and lower the sensor head

into the water. The temperature sensor takes a few

seconds to respond to changes in temperature, so

lower the sensor head slowly. For the most accu-

Equipment Included Replacement

Part

Thermocline Sensor Head

with 10 m cable

003-08790

Thermocline Sensor Amplifier

003-08736

Additional Equipment Required Model

Number

PASPORT

™

interface

see PASCO

catalog

DataStudio

version 1.9 or higher

see PASCO

catalog

pressure

sensor

temperature

sensor

Summary of content (2 pages)

PAGE 1
Instruction Sheet No. 012-08734A Thermocline Sensor Model PS-2151 Sensor Amplifier 51 SENS OR E IN ä PS-21 Thermocline Sensor Head CL THERMO Equipment Included Replacement Part Thermocline Sensor Head with 10 m cable 003-08790 Thermocline Sensor Amplifier 003-08736 Additional Equipment Required Model Number PASPORT™ interface see PASCO catalog DataStudio® version 1.9 or higher see PASCO catalog that plugs into the amplifier box.
PAGE 2
Thermocline Sensor Model No. PS-2151 rate temperature measurement at a particular depth, hold the sensor still and wait until the reading has stabilized. Temperature Sensor You can also leave the sensor head in the water and record changes in depth and temperature over time. Calibration Range 0 °C to 70 °C Absolute Accuracy ±1.5 °C typical ± 0.6 °C at 25 °C Resolution 0.05 °C Response Time (10% to 90%) 10 s Calibration is usually not necessary.