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UNRESTRICTED
“Cement-On” Thermocouples
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Fast-Response Thermocouples with “Cement-On” Pads
OMEGA introduces its CO Series Cement-On, fast response thermocouples
for fast surface temperature measurement applications in four convenient
styles. Styles 1 and 2 are made from 0.13 mm (0.0005”) thermocouple
alloy and Style 1-B is made from 0.18 mm (0.008”) thick thermocouple
alloy by a special process where the butt-welded thermocouple junction is
very thin and flat. Styles 1, 1-B and 2 are flat, extremely low inertia
construction and are an ideal means of measuring the temperature of
both flat and curved metals, plastic and ceramic surfaces where very fast
response is desired.
These thermocouples are made from ANSI “Special Limits of Error” grade
thermocouple materials in K, E and T calibrations. Style 1, 1-B and 2 have
the fastest response. Style 3 is an economy version constructed from 0.25
mm (0.010”) diameter beaded wired which conforms to Standard Limits of
Error. It should be used where extremely fast response is not essential.
Features
• Response time in milliseconds
• Made from think profile thermocouple wire
• Very low thermal inertia
• Four calibrations: J, K, E and T
• Four measurement styles
• Ideal for surface measurement
Specifications
Model Style Thermocouple Type Length Maximum Temperature *
Continuous
600 hr
10 hr
CO1-K
K-Chromega-Alomega
1m (40 in)
260°C (500°F)
315°C (600°F)
370°C (700°F)
CO1-E
1
E-Chromega-Constantan
1m (40 in)
260°C (500°F)
315°C (600°F)
370°C (700°F)
CO1-T
T-Copper-Constantan
1m (40 in)
150°C (300°F)
205°C (400°F)
260°C (500°F)
CO1-K-B
K-Chromega-Alomega
1m (40 in)
260°C (500°F)
315°C (600°F)
370°C (700°F)
CO1-E-B
1-B
E-Chromega-Constantan
1m (40 in)
260°C (500°F)
315°C (600°F)
370°C (700°F)
CO1-T-B
T-Copper-Constantan
1m (40 in)
150°C (300°F)
205°C (400°F)
260°C (500°F)
CO2-K
K-Chromega-Alomega
150mm (6 in)
540°C (1000°F)
540°C (1000°F)
650°C (1200°F)
CO2-E
2
E-Chromega-Constantan
150mm (6 in)
425°C (800°F)
425°C (800°F)
540°C (1000°F)
CO2-T
T-Copper-Constantan
150mm (6 in)
150°C (300°F)
150°C (300°F)
260°C (500°F)
CO3-J
J-Iron-Constantan
1m (40 in)
260°C (500°F)
370°C (700°F)
370°C (700°F)
CO3-K
3
K-Chromega-Alomega
1m (40 in)
260°C (500°F)
370°C (700°F)
370°C (700°F)
CO3-E
E-Chromega-Constantan
1m (40 in)
260°C (500°F)
370°C (700°F)
370°C (700°F)
CO3-T
T-Copper-Constantan
1m (40 in)
205°C (400°F)
370°C (700°F)
370°C (700°F)
* The temperature range high limits given are greatly influenced by environmental conditions, installation method, accuracy and
lifetime requirements and may vary from the general guidelines listed in the table.
Style 1 & 1-B and 3 cannot be used with CC High Temperature Cement; CC Cement will break down insulation. Response time
when “grounded” or “cemented” to surface: Style 1 & Style 1-B (150 to 200 milliseconds), Style 2 (2 to 5 milliseconds), Style 3
(300 milliseconds).
The response time or “time constant” is the time required to reach 63.2% of an instantaneous temperature change. Additional length
wire can be ordered for Styles 1, 1-B and 3. Ordering Example: CO1-K is a style 1, Type K thermocouple, with 1m (40 inch) leads.
CO1-T-B-80 is a style 1-B, Type T thermocouple, with 2 m (80 inch ) leads.
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