Omega Products TRP-C User Manual
Supplied with male
Series TRP Reference Probes
up to six can be used at
the same time
Copper leads
Connectors
TRP Application-Probe Calibration
"Working"
Model TRC III-A
Thermocouple leads
Temperature Reference Probes
With Standard Size Connectors for
Thermocouple Calibration
Dimensions: mm (inch)
3 (1⁄8) diameter
140 (51⁄2)
TRP Series
U All Standard Calibrations Available
U Comes Complete with Mating
Connectors and Locking Clips
U Can Be Ordered with 300 mm (12"),
600 mm (24") or 900 mm (36") Leads
U 304 Stainless Steel Sheath Material
Accurate thermocouple temperature
measurement requires a stable
reference junction. It is common
practice to create a transition
reference junction by attaching
a copper lead wire to each
thermocouple leg. When the
transition reference junction is held
at the ice point 0°C (32°F) the output
of the thermocouple appearing
across the copper leads attached
to the readout instrument is stable
and predictable. For accuracy and
convenience, OMEGA offers its
series TRP REFERENCE PROBE
which locates the thermocouplecopper transition reference junction
at the end of an 1⁄8" diameter sheath
for easy insertion into the TRCIII-A
ice point calibration chamber. Up to
six series TRP Probes can be used
at one time in OMEGA’s Ice Point
Chamber. Use the temperaturemillivolt tables to convert readings
into °C or °F when using a voltmeter
with the TRCIII-A ice point™
reference cell shown below.
Model TRCIII-A
ice point™
OMEGA’s TRP’s are used in conjunction
with ice point™ reference cells such
as TRCIII-A, see omega.com
To Order Visit omega.com/trp-k for Pricing and Details
Model Thermocouple Material Type
Number + –
TRP-K* CHROMEGA
TRP-N* OMEGA-P® OMEGA-N
TRP-T* Copper Constantan
TRP-E* CHROMEGA
TRP-J* Iron
TRP-S
TRP-R
TRP-B
TRP-C
TRP-D
Note: 12" leads are standard. For 24 or 36" long leads add suffix “-24” or “-36” to model
*
number for an additional cost.
† Standard length is 6", for each additional 6" length there is an additional cost.
Ordering Examples: TRP-J-24. TRP-R-12.
A. To readout instrument “Copper-Copper”
B. To measuring junction
“Thermocouple Alloys”
TRP Application-Probe Calibration
Thermocouple leads
"Working"
Thermocouple
under test in a
known temperature
environment
†
Platinum
†
Platinum Platinum 13% Rh
†
Platinum 30% Rh Pt 6% Rh
†
W 5% Re W 26% Re
†
W 3% Re W 25% Re
B
A
300 (12)
To Recorder or Readout
TRP Application-Meter Calibration
TRCIIIA
Copper Wire
Cu
Cu
Supplied with male
and female
color-coded
thermocouple
connectors
ALOMEGA
Constantan
Constantan
Platinum 10% Rh
Thermocouple Wire
a (+)
b (-)
Thermocouple
Meter
Copper leads
Connectors
Model TRC III-A
Color-coded
Copper-Copper
connectors
Series TRP Reference Probes
up to six can be used at
the same time
®
®
To Probe
Precision
Voltage
Source
®
®
A-37
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