RTDs

Tube and Wire
OEM Style
Mineral Insulated MGO

Mineral Insulated RTDs w/ Connection Head

Series RK3

RK3 RTD Catalog Page

Ordering Information

Part No.:

1
Series
2
Element
Type
3
Wire Config
4
Sheath Diameter
5 6
Sheath Length
7
Head Mounting Fitting
8
Connection Head Style
9
Special Features
10
Attached Fitting
11 12
Insertion Length
13
Trans Temp Range
14
Temp Scale
RK3

2 Element Type
K 100 5 DIN 00385 Class A mineral insulated element (600°C rated)
P 100 5 DIN 00385 Class A mineral insulated element (800°C rated)
  For other elements consult factory

3 Wire Configuration
2 2-wire
3 3-wire
4 4-wire
5 2-wire (Dual)
6 3-wire (Dual)

4 Sheath Diameter
H 0.125” (3.2mm) (1/8")
L 0.188” (4.8mm) (3/16")
N 0.250” (6.4mm) (1/4")
  Sizes for reference only (Standard tolerances apply)
  For other diameters consult factory

5 6 Sheath Length
2-144

7 Head Mounting Fitting
06 1/2” npt x 1/2" npt double thread
07 1/2” npt double thread spring loaded
08 1/2” npt x 1/2" npt double threadspring loaded w/ oil seal
09 1/2” npt x 3/4" npt double thread
10 3/4” npt x 3/4" npt double thread
12 Single threaded brass compression (no process thread)
13 Single threaded stainless compression (no process thread)
14 1/2” npt x 1" npt double thread
15 1/2” npt x 1/4" npt double thread
16 1/4” npt x 1/4" npt double thread
17 1/2”npt single thread bushing (no process thread)
18 1/4”npt single thread bushing (no process thread)
  Fittings silver soldered (brazed) to sheath
  For other fittings not shown contact factory

8 Connection Head Style
A Cast aluminum (standard)
B Small cast aluminum
C Flip top head cast aluminum
D Cast steel
E Stainless steel
F Cast iron
G Polypropylene
H Explosion proof cast aluminum
Q Explosion proof 316 Stainless steel
R Explosion proof cast aluminum DUAL conduit
S Mini aluminum screw down cover
W Cast aluminum NEMA 4X IP68 rated

9 Special Features
  None
04 Flat tip probe
17 420 milliamp transmitter
28 90 degree bend
30 45 degree bend

10 Attached Fitting (optional)
  None
F01 1/8" npt single thread
F02 1/4" npt single thread
F03 3/8" npt single thread
F04 1/2" npt single thread
F05 3/4" npt single thread
F06 1/2" npt x 1/2" npt double thread
F07 1/2" npt double thread. Spring loaded
F08 1/2" npt x 1/2" npt double thread. Spring loaded w/ oil seal
F09 1/2" npt x 3/4" npt double thread
F10 3/4" npt x 3/4" npt double thread
F11 Fixed bayonet cap assembly
F15 1" npt single thread
F16 Adjustable 7/16" ID bayonet cap fitting (1/8" OD & 3mm OD)
F17 Adjustable 12.5mm ID double slot bayonet cap fitting (1/8" OD & 3mm OD)
F18 1/8" npt compression fitting (Brass)
F19 1/8" npt compression fitting (Stainless Steel)
F20 1/4" npt compression fitting (Brass)
F21 1/4" npt compression fitting (Stainless Steel)
F22 1/2" npt compression fitting (Brass)
F23 1/2" npt compression fitting (Stainless Steel)
  For other fittings not shown contact factory

11 12 Insertion Length (when required)
  None
0-60


For Transmitter Only (Optional)

13 Transmitter Temperature Range
  None
1-1200
-

14 Transmitter Temperature Scale
  None
F Farenheit
C Celsius