RTDs

Product and Ordering Information

Direct Immersion/Replacement RTD Assemblies

Table A (cont.)

Figure 14     Figure 15
Figure 16 Figure 17
Figure 18
Basic Order Code
Fig. 14 Fig. 15 Fig. 16 Fig. 17 Fig. 18
M
w/o mating female
MF
w/ mating female
B SB BS(A) SBS

How to Order:

Pgs. 6-8  -  Page 9  -     -  Page 10
Basic
Order Code

SB

Table A
Sensor
Diameter

4

Table B
Element


A

Table C
Tolerance


1

Table D
Temp. Range


A

Table E
Sheath
Material

1

Table F
Lead
Conn.

B

Table G
"L"
Length

6

Table H
Options


L

Table I


RTD Assembly Specifications

Table B (sensor diameter)

Sensor Diameter Order Code
1/8" (.125") 2
3/16" (.188") 3
1/4" (.250")STD 4
5/16" (.312") 5
3/8" (.375") 6

 

Table C (element)

Resistance
0°C
Material Temperature Coefficient/Alpha (a) Order Code
Single Element Dual Element
100Ω Platinum .00385Ω/Ω°C A 2A
100Ω Platinum .003916Ω/Ω°C B 2B
100Ω Platinum .003902Ω/Ω°C C 2C
98.129Ω
(100Ωnom-)
Platinum
Sama Standard
RC21-4-1966
.00392Ω/Ω°C D 2D
120Ω Nickel .00672Ω/Ω°C E 2E
9.035Ω Copper .00427Ω/Ω°C F 2F

 

Table D (tolerance)

Accuracy at 0°C Order Code
± .12% Class B 1
± .06% Class A 2
± .03% Lab Grade 3
± .02% Lab Grade 4
± .01% Lab Grade 5

 

Table E (temperature range)

Temperature Range Order Code
-50 to +250 Deg. C
-58 to +482 Deg. F
A
-50 to +400 Deg. C
-58 to +752 Deg. F
B
-50 to +660 Deg. C
-58 to +1220 Deg. F
C

 

Table F (sheath material)

Sheath Material Order Code
316 SS 1
Alloy 600 2
Alloy C-276 3

 

Table G (lead connection)

2-Wire Order Code A
3-Wire Order Code B
4-Wire Order Code C

 

Table H (length)

Specify "L" in Inches
Length Not required when Thermowell is used.

Optional Connections

(For extended lead types)

Table I (options)

  Description Order Code
Spade Lugs for #8 Screw L
Male Plug M
The connectors shown are for 3-wire single element assemblies.

Two - 2 Pin connectors mounted in tandem will be furnished for both styles of 4-wire single element assemblies.

Dual element assemblies will have the same connector arrangements except Doubled.
Female Jack F
Watertight connector 1/2" NPT W1
3/4" NPT W3
Watertight connector with lugs for #8 screws 1/2" NPT WL1
3/4" NPT WL3

 

Optional Mounting Fittings
Description NPT Order Code
1/8" 1AS
1/4" 2AS
3/8" 3AS
1/2" 4AS
3/4" 6AS
For FEP readjustable insert, replace "A" with "R"
Example: 4RS
   

 

Optional Spring-Loaded Devices
Description Order Code

Adjustable Spring
FP 275

1/2" NPT Double threaded adjustable hex bushing
FP 240

1/2" NPT single threaded adjustable hex bushing
SSL