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        • Resistance Temperature Detectors (RTDs)
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Home/Resistance Temperature Detectors (RTDs)/Bayonet Assemblies

Bayonet Assemblies

Table 1 (style)

Figure 1 Bayonet with stainless steel armor
Figure 2 Bayonet with stainless steel overbraid
Figure 3 Rigid tube with stainless steel armor
Figure 4 Rigid tube with stainless steel overbraid
Figure 5 Rigid tube bayonet with male plug (only option “M” in Table 5 may be specified
Straight
Assemblies in figures 1-5 are available with straight, 45° or 90° angle configuration. Select in Table 1.
Order

Code

Configuration
Straight 45° 90°
Figure 1 R111 R145 R190
Figure 2 R211 R245 R290
Figure 3 R311 R345 R390
Figure 4 R411 R445 R490
Figure 5 R511 R545 R590

Table 2 (sensing element options)

Sensor Type Order Code
2-Wire* 3-Wire*
100ohm Platinum

.00385 T.C. (DIN 43760)

(Most commonly used)

A2 A3
Notes: For dual element insert a “2”

in front of order Code.

Example: 2A3

Table 3

Temperature Range Options

Temperature Range Order Code
-50 to +260°C

-50 to +500°F

L
-50 to +400°C -50 to +750°F S

 

Table 4

Dimension Option

“X” and “L” Lengths Order Code
Refer to Figures 1-7 and specify

the lengths of “X” and “L” in inches.

Insert in ordering sequence.

See “How To Order”

Table 5

End Terminations

Insulated Leads-Striped

B

No. 8 Spade Lugs

L

Male Plug

M

Required for Figure 5.

Optional for others.

1/2″ BX Connector

BX

1/2″ BX Connector w/ #8 Lugs

BXL

Table 6

Options

Style Order Code
1/8″ npt brass compression fitting for Figures 3 and 4 B
1/8″ npt stainless steel compression for Figures 3 and 4. S
Mating female connector for end termination “M” in Table 5 F

How to Order

Make a selection from each table and specify “X” and “L” dimensions as shown below. Insert hyphens only where indicated.

Style   – Sensing Element   – Temp. Range   – Dimensions   – Terminations   – Options
R111 A3 L (X) Specify

in

Inches

(L) M F
Table 1 Table 2 Table 3 Table 4 Table 5 Table 6

(optional)

Table 13

Thread Length Part Number
1/8NPT

1/8NPT

1/8NPT

3/8-24

3/8-24

3/8-24

7/8″

1-3/8″

2-1/2″

7/8″

1-3/8″

2-1/2″

3001-1

3001-2

3001-3

3001-4

3001-5

3001-6

Part Numbers
Adapter Lengths Pipe Clamp Sizes (IPS)
1/2″ 3/4″ 1-1/2″ 2″ 2-1/2″ 3″ 3-1/2″ – 4″ 5″ 6″
1.875″ Standard 3002-1 3002-2 3002-3 3002-4 3002-5 3002-6 3002-7 3002-8 3002-9
2-1/2″ 3003-1 3003-2 3003-3 3003-4 3003-5 3003-6 3003-7 3003-8 3003-9
3″ 3004-1 3004-2 3004-3 3004-4 3004-5 3004-6 3004-7 3004-8 3004-9
3-1/2″ 3005-1 3005-2 3005-3 3005-4 3005-5 3005-6 3005-7 3005-8 3005-9
4″ 3006-1 3006-2 3006-3 3006-4 3006-5 3006-6 3006-7 3006-8 3006-9
5-1/4″ 3007-1 3007-2 3007-3 3007-4 3007-5 3007-6 3007-7 3007-8 3007-9

For New Installations:

The following formula may be used to determine the “X” dimensions of bayonet RTD.

For Threaded Adapters:

X = Depth of hole + adapter length + 1/2″.

For Pipe Clamp Adapters:

X = Adapter length + 3/4″

(This formula assumes the sensor is in surface contact with the pipe.)

RTDs

    General

  • Introduction to RTDs
  • Application and Technical Data
  • Resistance vs. Temperature Tables
  • Detector Tolerance Chart
  • Product and Ordering Information

Standard RTD Assemblies

  • Terminal Head Connected RTD Assemblies
  • Extended Lead RTD Assemblies
  • Direct Immersion/Replacement RTD Assemblies

RTDs for Plastics Industry

  • RTDs For The Plastics Industry
  • Bayonet Assemblies
  • Nozzle and Immersion Bolt Assemblies
  • Extension Assemblies
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