Richards Thermocouple and Temperature Sensor Catalog 16

Resistance Temperature Detectors (RTDs) - Platinum - Elements and Assemblies

√ 316SS 1/4” Dia. European Curve Element √ Four Wire Lead Configuration √ Max. Temp. 400°C (752°F) or High Temp. Option 650°C (1202°F) √ ± 0.04% resistance or ±0.1°C Accuracy √ Need to Customize Your Assembly - Fine Tune the Part Number: After locating a figure and part number, you can fine tune the sensor for your application. If you require an American curve sensor and not the European curve, change the “ E ” to an “ A ” in the part number. If you require a 500 Ω and not the standard 100 Ω sensor, change the “ 11 ” in the part number to “ 51 ”. 1000 Ω sensors can be ordered by changing the “ 11 ” to an “ 101 ”. Substitute any “ X ” and “ Y ” characters with your length requirements. RTDs are provided in four wire configurations as standard. This is the most accurate configuration. Note: if you are using a transmitter you may be only able to use a three wire sensor. This can be designated by changing the “ 4 ” in the part number to a “ 3 ”. Two wire RTDs can be specified by changing the “ 4 ” with a “ 2 ” in the part number. Note the RTD wiring configuration diagrams shown on page 149. The standard metal sheath for RTD elements is 1/4” diameter made of 316 stainless steel. Inconel 600 sheaths can be specified by changing the “ 16 ” in the part number to a “ 09 ”. Example part number: 4E164-11-12-24 is a four wire, European curve, 316 Stainless Steel 1/4 inch diameter sheath, 100 Ω ,12” probe, 24” probe and leads overall. Note: Richards standard RTD’s have a maximum service temperature rating of 400°C ( 752°F ). Our high temperature RTD’s have a maimum service temperature rating of 650°C ( 1202°F ). If you would like to specify this option, add a “ H ” after the curve designation letter ( A or E ) in the catalog number. Example Part Number: 4EH164-11-12-24 is a High Temperature , four wire, European curve, 316 Stainless Steel 1/4 inch diameter sheath, 100 Ω, 12” probe, 24” probe and leads overall. √ 100Ώ Resistance

RTD Elements and Assemblies

Description

Part Number

Ohms Ώ

Curve (Alpha)

Sheath Material

Sheath Diameter

Inches mm

1

1

Probe, Plain Plain Probe with Teflon Leads.

4E162-11-X-Y 4E163-11-X-Y 4E164-11-X-Y

316 Stainless Steel

1/8” (.125) 3/16” (.188) 1/4” (.250)

3.18 4.76 6.35

100 Ώ

European (0.00385)

2

2

Probe, Compression Fitting Plain Probe with Teflon leads and a 316 Stainless Steel compression fitting ( CF ).

4E162-11-X-Y-CF 4E163-11-X-Y-CF 4E164-11-X-Y-CF

316 Stainless Steel

1/8” (.125) 3/16” (.188) 1/4” (.250)

3.18 4.76 6.35

100 Ώ

European (0.00385)

3

3

Probe, Forward Facing Bushing Plain Probe with Teflon leads and a forward facing Bushing ( B ).

4E162-11-X-Y-B 4E163-11-X-Y-B 4E164-11-X-Y-B

316 Stainless Steel

1/8” (.125) 3/16” (.188) 1/4” (.250)

3.18 4.76 6.35

100 Ώ

European (0.00385)

X = Overall Length.

Y = Probe or insertion length.

Note: For an Inconel sheath (Alloy #9), substitute the “ 16 ” in the

part number with a “ 9 ”. Other special alloys also available.

Page 158

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