28022 Parallax Inc, 28022 Datasheet - Page 2

• Manufacturer Part Number: 28022
• Description: KIT DS2760 THERMOCOUPLE
• Manufacturer: Parallax Inc

Specifications of 28022

• Lead Free Status: Contains lead
• Accessory Type: Thermocouple Kit
• For Use With/related Products: BASIC Stamp® Modules
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Connections
Before connecting the DS2760 Thermocouple Module to the BASIC Stamp you will need to prepare a
thermocouple element, and then connect it to the cold junction port of the module. Start by carefully
removing about one inch (250 mm) of the outer sleeve from each end of the element. From each lead on
the temperature measurement end, remove about ½ inch (125 mm) of insulation and then carefully twist
together (using pliers if necessary) and trim as shown in Figure 1.
On the cold junction (DS2760 module) end of the element, remove only ¼ inch (60 mm) of insulation from
each lead. Route these leads through the bottom of the thermocouple module PCB and insert snuggly
into the pin sockets as shown in Figure 2.
Use this table to ensure that you make the proper thermocouple connections to the module. If the leads
are reversed, the measured temperature will be incorrect.
Finally, the DS2760 Thermocouple Module is connected to the BASIC Stamp as shown in Figure 3 below
(Note that the module includes a 4.7 K pull-up on the 1-Wire
2
Figure 2: Cold Junction Connection to DS2760 PCB
Type
Figure 3: DS2760 Connections to BASIC Stamp
K
T
J
Copper / Constantan
Figure 1: Thermocouple Junction
Chromel / Alumel
Iron / Constantan
Materials
Parallax, Inc. • DS2760 Thermocouple Kit (#28022) • 01/2004
Vdd
Vss
SNS
Red
Red
Red
®
data line).
Data IO
Yellow
White
Blue
Vss