Low-Cost Bayonet
A
Style
With Stainless
Steel Armor Cable
U Service Temperature to 480°C (900°F)
Except for Type T Thermocouple
U A Wide Variety of Immersion
Lengths, Styles and Mounting
Arrangements Are Available
U Standard Configurations
for Fast Delivery
U 304 Stainless Steel Construction
U Flexible 7 mm (0.275") Stainless
Steel Cable [1.5 m (60") Standard]
Hollow Tube Design
U Glass Braid Insulated 20 Gage
Solid Thermocouple Wire
U Stranded Wire Available as Option
U Grounded Junction
Pipe Clamp Adaptors
for Bayonet-Type
Thermocouples
† Note: Choose “A”
thermocouple
dimension
(1.75")
44.5 mm
11.1 mm
Diameter
To measure temperature of pipes without drilling.
Easily installed and removed.
(0.44")
For Pipe
Model Number Diameter
ANSI Color Code (in)
BTC-1
BTC-2
1
⁄2 to 7⁄8
7
⁄8 to 11⁄2
BTC-3 15⁄16 to 21⁄4
BTC-4 21⁄4 to 35⁄16
BTC-5 35⁄16 to 41⁄4
BTC-6 45⁄16 to 51⁄4
Adaptors for Bayonet-Type Thermocouples
Thread
Length
11.11 mm
(.437")
9.52 mm
(.375")
Model Number Length Thread
ANSI Color Code (in) Size
BTA-1
BTA-2
BTA-3 1
BTA-4 1
BTA-5 2
BTA-6 2
Discount Schedule
1–24 Units . ... ... ..Net 100–249 Units ..... ... ... 10%
25–99 Units ... ... ...7% 250 and up .. ..Consult Sales
Like a compression
fitting, does not seal
of 57 mm (2.25") for
all bayonet type
thermocouples used
with pipe clamp
adaptors.
Material is
Stainless
7
⁄8
7
⁄8
3
⁄8
3
⁄8
1
⁄2
1
⁄2
1
1
1
Steel
⁄8-27 NPT
3
⁄8-24
⁄8-27 NPT
3
⁄8-24
⁄8-27 NPT
3
⁄8-24
Style 1
Termination
Spade Lugs
†
Drilling Selection
Table for
Spring Loaded
Bayonet Type
Thermocouples
Stainless
Steel Cable
Style 2
Termination
Standard Size
Connector
90° Bend
Bayonet Type-
Spring Loaded
BT Series
75 mm
(3”)
Standard Extruder Probes Bayonet Type
To Order Visit omega.com/bt-000_bt-090 for Pricing and Details
Cold End Model Number
Dimensions* Type Termination ANSI Color Code
Straight
J 1 BT-000 -J-
A
J 2 BT-000 -J- -60-2
B
K 1 BT-000-K- -60-1
K 2 BT-000-K- -60-2
T 1 BT-000-T- -60-1
41.4
(1.63)
T 2 BT-000-T- -60-2
A = 57.2 mm (2
E 1 BT-000-E- -60-1
or 89 mm (31⁄2")
E 2 BT-000-E- -60-2
B = 1.5 m (60")
J 1 BT-090-J J 2 BT-090-J- -60-2
K 1 BT-090-K- -60-1
12.7
K 2 BT-090-K- -60-2
(0.5)
T 1 BT-090-T- -60-1
T 2 BT-090-T- -60-2
A
E 1 BT-090-E- -60-1
E 2 BT-090-E- -60-2
Note: Insert 21⁄4 or 31⁄2: Standard “A” Dimension in space ( ). Longer
*
lengths available at cost per/inch. “B” standard dimensions is 60". For longer
lengths, change “60” to desired length, (in inches) additional cost per foot to
price. For ungrounded, add suffix “-UNGROUNDED” to model number.
Ordering Example: BT-090-K-2 1/4-60-2 is a 90° bend bayonet probe,
Type K, 2
connector.
A
6.34 mm
(.25")
Drill
(.265")
C
1
⁄4")
90° Bend
44.5
B
(1.75)
41.4
(1.63)
A = 57.2 mm (2.25")
or 89 mm (3.50")
B = 1.5 m (60")
1
⁄4 A dimension, 60” armored cable and an OSTW thermocouple
Hole Depth “C”
mm (in)**
6 to 13 (
13 to 25 (
25 to 38 (1 to 1
38 to 50 (1
50 to 64 (2 to 2
64 to 76 (2
76 to 89 (3 to 3
89 to 102 (3
6.73 mm
102 to 114 (4 to 4
114 to 127 (4
**
dimension “A” for each 1⁄2" of hole depth dimension “C”.
Note: Thermocouples supplied without BTA adaptors.
1
⁄4 to 1⁄2) 15⁄8 2 31⁄8
1
⁄2 to 1) 2 21⁄2 35⁄8
1
⁄2) 21⁄2 3 41⁄8
1
⁄2 to 2) 3 31⁄2 45⁄8
1
⁄2) 31⁄2 4 51⁄8
1
⁄2 to 3) 4 41⁄2 55⁄8
1
⁄2) 41⁄2 5 61⁄8
1
⁄2 to 4) 5 51⁄2 65⁄8
1
⁄2) 51⁄2 6 71⁄8
1
⁄2 to 5) 6 61⁄2 75⁄8
For deeper holes than those listed, add 1⁄2" to probe
Probe Length “A” (in)
7
⁄8" 13⁄8" 21⁄2"
Long Adaptor Long Adaptor Long Adaptor
A-162
-60-1
-60-1