RTDs with Connection Head
(Series RK1)

RK1 RTD Catalog Page

Ordering Information

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Part No.:

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1
Series		 2
Element
Type		 3
Element Accuracy		 4
Wire Config		 5
Sheath Diameter		 6 7
Sheath Length		 8
Head Mounting Fitting		 9
Connection Head Style		 10
Special Features		 11
Attached Fitting		 12 13
Insertion Length		 14
Trans Temp Range		 15
Temp Scale
RK1

2 Element Type
T 100 Ω DIN 00385 (thin film)
U 500 Ω DIN 00385 (thin film)
W 1000 Ω DIN 00385 (thin film)
X 120 Ω Nickel DIN 00672 (thin film)
Y 100 Ω DIN 003916 (wire wound)
Z 500 Ω DIN 003916 (wire wound)
Q 10 Ω copper (thin film)
S 100 Ω DIN 00385 (wire wound)

3 Element Accuracy
A Class A (0.06%)
B Class B (0.12%)

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

5 Sheath Diameter
H 0.125” (3.2mm) (1/8")
J 0.156” (4mm)
L 0.188” (4.8mm) (3/16")
M 0.236” (6mm)
N 0.250” (6.4mm) (1/4")
P 0.314” (8mm) (5/16")
Q 0.375” (9.5mm) (3/8")
  Sizes for reference only (Standard tolerances apply)
  For other diameters consult factory

6 7 Sheath Length
2-60

8 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

9 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

10 Special Features
  None
04 Flat tip probe
17 420 milliamp transmitter (hockey puck style) Non Isolated
53 420 milliamp transmitter (hockey puck style) Isolated
24 Fluoropolymer covered probe
28 90 degree bend
30 45 degree bend

11 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)
  For other fittings not shown contact factory

12 13 Insertion Length (when required)
  None
0-60


For Transmitter Only (Optional)

14 Transmitter Temperature Range
  None
1-1200
-

15 Transmitter Temperature Scale
  None
F Farenheit
C Celsius