RTDs

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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 Teflon 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


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