Mineral-Insulated Metal Sheathed
Thermocouple Probes
Bare Leads Mineral-Insulated Cable
See page A-43
BLMI Series
Starts at
$
Epoxy sealed “cold end”,
rated to 175°C (350°F).
Bare 19 mm (3⁄4") leads.
BLMI-XL-14U-12, $31, shown
smaller than actual size.
22
vailable as
A
to A-48.
Cold-End Option
19 mm
(0.7")
BLMI probes are also available in a high-temperature
version. The cold end is potted using a ceramic cement
rated to 1200°C (2200°F). Add “-CC” to the end of the
probe part number and $5 to list price. (The actual
temperature rating of the probe is dependent upon the
calibration, sheath material, and probe diameter.)
Shown
actual
size.
BLMI Probes Deliver Consistent, Superior
Quality Through Automated Manufacturing
Thermocouple users demand products able to deliver
accurate measurements over long lifetimes. They also
want proven track records from the probes they buy.
With OMEGA’s automated manufacturing and testing
systems, these customers can be assured of
consistently high-quality products, and the ability to
track the manufacturing process and retrieve the initial
calibration values and material sources.
OMEGA’s bare leads MI (BLMI) finished probes begin
with OMEGA’s own high-purity magnesium oxide
thermocouple cable. This mineral-insulated, metalsheathed cable uses SLE-class materials throughout
its construction.
“DUAL”Construction
Also available in
a 4-wire construction
(2 thermocouple junctions).
Add “–DUAL“ to the end of
the part number and $10
to the list price. Consult Sales
for probe lenghts over 12".
For some applications, such as ceramic kilns, BLMI
probes combined with the accessories shown on these
pages offer expedient and accurate temperature solutions
to 1204°C (2200°F) with XL probes. BLMI probes meet
and exceed the rigorous standards for thermocouples,
including ANSI/ASTM-E-230, ASTM-E-608, and the
British/European BS/EN 61515 standard. The combined
BLMI probe with Super OMEGACLAD®XL sheathing
produces superior measurement results.
OMEGA’s BLMI Series probes are built and quality
tested on our automated manufacturing lines.
OMEGACLAD®mineral-insulated, metal-sheathed
thermocouple cable is cut, stripped, beaded, closed,
potted, and tested by equipment designed and built
in-house exclusively for these tasks.
Programmable controller-based automation used in
manufacturing BLMI probes ensures the same high
quality from lot to lot—from cutting to final test. After
final QA tests for insulation resistance and weld and
seal leakage [nitrogen pressure test at 2.5 MPa
(362 psi)], OMEGA assigns identification codes to
each device, which can be used to track products
through the entire manufacturing process.
To pass the IR test according to ASTM specs, OMEGA’s
BLMI probes must achieve at least a 1 GΩ reading. The
unit under test scored 50 GΩ.
Probes are subjected to a leak test at the welded
thermocouple junction (hot end) with a pressurization
greater than 2.5 MPa (362 psi).
A-41
A
BRLK and SSLK
compression fittings
starting at $6.
See page A-127
Junction Types
Grounded
Exposed
Ungrounded
J, K, T, Calibrations in Stock—
Also Available in E and N
®
304 SS, 310 SS, 316 SS, Inconel
600,
and Super OMEGACLAD®XL Sheaths
Exposed, Grounded, and Ungrounded
Hot Junctions
Exposed 19 mm (0.7") Bare Conductors
Epoxy or Ceramic Cement Cold-End Seal
Standard Lengths, 150 or 300 mm
(6 or 12")—Custom Lengths Available
Vast Selection of Termination
Accessories—See Window to the Right
Metric Diameters and Lengths
Available—Contact Sales for Details
Super OMEGACLAD®XL
“BLMI” probes used in
ceramic kiln firing
applications. For more
information on Super
OMEGACLAD®XL probes,
see page A-43.
Accessories
Ceramic terminal blocks, start at
$3, see page B-10.
Compensated
spade lugs,
$13 pk of 20,
see page G-56.
TX93A, ultra
miniature
transmitters, $74,
see page N-38.
Fiberglass sleeving
for insulating bare wire
up to 480°C (900°F),
$0.35/ft, see page A-144.
Discount Schedule
1 to 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Net
11 to 24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10%
25 to 49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20%
50 to 99 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25%
100 and over . . . . . . . . . . . . . . . . . .Consult Sales
MOST POPULAR MODELS HIGHLIGHTED!
To Order
Calibration Sheath Sheath Dia. Guidelines °C (°F) 300 mm (6 and 12")] 300 mm (12")
ANSI Color Material mm (in) T/C Junction Model No.
Specify junction (G)rounded, (E)xposed, or (U)ngrounded.
*
Ordering Example: BLMI-XL-K-316-G-24, mineral-insulated grounded probe, 24" length, $26 + 4.80 = $30.80.
(Specify Model Number)
Upper Temperature
304 SS
304 SS
304 SS
304 SS
INC 600
INC 600
INC 600
INC 600
XL
XL
XL
XL
304 SS
304 SS
304 SS
304 SS
304 SS
304 SS
304 SS
304 SS
1
⁄16 (1.59) 899 (1650) BLMI-304-K-116(*)-(**) $22 $24 $1.55
1
⁄8 (3.18) 899 (1650) BLMI-304-K-18(*)-(**) 22 24 1.85
3
⁄16 (4.78) 899 (1650) BLMI-304-K-316(*)-(**) 23 25 3.15
1
⁄4 (6.35) 899 (1650) BLMI-304-K-14(*)-(**) 26 28 5.00
1
⁄16 (1.59) 921 (1690) BLMI-INC-K-116(*)-(**) 22 24 1.55
1
⁄8 (3.18) 1071 (1960) BLMI-INC-K-18(*)-(**) 22 24 3.15
3
⁄16 (4.78) 1149 (2100) BLMI-INC-K-316(*)-(**) 23 25 4.35
1
⁄4 (6.35) 1149 (2100) BLMI-INC-K-14(*)-(**) 26 28 7.50
1
⁄16 (1.59) 1038 (1900) BLMI-XL-K-116(*)-(**) 25 27 1.70
1
⁄8 (3.18) 1149 (2100) BLMI-XL-K-18(*)-(**) 25 27 3.50
3
⁄16 (4.78) 1204 (2200) BLMI-XL-K-316(*)-(**) 26 28 4.80
1
⁄4 (6.35) 1204 (2200) BLMI-XL-K-14(*)-(**) 29 31 8.30
1
⁄16 (1.59) 441 (825) BLMI-304-J-116(*)-(**) 22 24 1.55
1
⁄8 (3.18) 521 (970) BLMI-304-J-18(*)-(**) 22 24 1.85
3
⁄16 (4.78) 621 (1150) BLMI-304-J-316(*)-(**) 23 25 3.15
1
⁄4 (6.35) 721 (1330) BLMI-304-J-14(*)-(**) 26 28 5.00
1
⁄16 (1.59) 260 (500) BLMI-304-T-116(*)-(**) 22 24 1.55
1
⁄8 (3.18) 316 (600) BLMI-304-T-18(*)-(**) 22 24 1.85
3
⁄16 (4.78) 371 (700) BLMI-304-T-316(*)-(**) 23 25 3.15
1
⁄4 (6.35) 371 (700) BLMI-304-T-14(*)-(**) 26 28 5.00
Price [50 mm and Price Add’l
G*/E* U*
Probe length 6" (150 mm), 12" (300 mm), 18" (450 mm) are stock.
**
A-42
MI Cable
One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | info@omega.com
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