704-399-4248 sales@sethermal.com

standard RTDs

Resistance Temperature Detectors (RTD’s) offer an unparalleled combination of quality, performance, and price to meet todays changing market. To meet a broad range of requirements the factory has designed RTD’s in three specific temperature ranges: the Low, Medium, and High range series.

LOW RANGE: -50 to +200°C (-58 to +392°F) The construction provides a cost effective and durable probe suitable for industrial process or laboratory applications and offers high accuracy, long term stability, superior interchangeability and resistance to shock and vibration. Element Types: Platinum 100W, 500W and 1000W ohms at 0°C (standard) (Nickel, Nickel-Iron and Copper available) Element Accuracy @ 0°C: + 0.5% to + 0.01% (Multiple DIN, DIN class A and B, Fractional DIN) Temperature Coef. (TCR): Alpha 0.00375W/°C (1000W), 0.00385W/°C (100W, 500W & 1000W), 0.00392W/°C (100W) Applicable Standards: DIN/IEC 60751 and JIS C1604 Other Specifications: Consult sales concerning information on stability, repeatability, self-heating and vibration Sheath Diameters: .050″ OD to 3/4″ OD (Metric sizes also available) Sheath Material: 316 stainless steel standard, other materials available Excitation Current: 1mA or less recommended, 2mA maximum (Consult sales for applications utilizing more than 2mA) Insulation Resistance: At 21°C (70°F) with all external surfaces dry, the resistance between any lead wire and the sheath is 500 megohms or greater at 250 VDC.

MEDIUM RANGE: -50 to +450°C (-58 to +842°F) This series utilizes the same basic construction as the low series, but offers the benefit of an extended temperature range. HIgh accuracy, long term stability, superior interchangeability and resistance to shock and vibration make this series a significant addition to our line of high quality RTD’s. Element Types: Platinum 100W, 500W and 1000W ohms at 0°C (standard) Element Accuracy @ 0°C: + 0.5% to + 0.01% (Multiple DIN, DIN class A and B, Fractional DIN) Temperature Coef. (TCR): Alpha 0.00375W/°C (1000W), 0.00385W/°C (100W, 500W & 1000W), 0.00392W/°C (100W) Applicable Standards: DIN/IEC 60751 and JIS C1604 Other Specifications: Consult sales concerning information on stability, repeatability, self-heating and vibration Sheath Diameters: 1/8″ OD to 3/4″ OD (Metric sizes also available)Sheath Material: 316 stainless steel standard, other materials available Excitation Current: 1mA or less recommended, 2mA maximum (Consult sales for applications utilizing more than 2mA) Insulation Resistance: At 21°C (70°F) with all external surfaces dry, the resistance between any lead wire and the sheath is 100 megohms or greater at 250 VDC.

HIGH RANGE: -200 to +650°C (-328 to +1202°F) This construction utilizes a fully supported, strain fee wire wound sensing element encapsulated in a compacted MgO insulated metal sheathed cable. This combination provides a probe suitable for extremely demanding applications. It offers superior resistance to pressure, shock, and vibration. By utilizing the finest elements available, this style of probe displays long life, longer term accuracy and excellent repeatability. Element Types: Platinum 100W at 0°C (standard) (Consult for other types) Element Accuracy @ 0°C: + 0.12% to + 0.01% (DIN class A and B, Fractional DIN) Temperature Coef. (TCR): Alpha 0.00385W/°C, 0.00392/W°C (100W) Applicable Standards: DIN/IEC 60751 and JIS C1604 Other Specifications: Consult sales concerning information on stability, repeatability, self-heating and vibration Sheath Diameters: 1/8″ OD to 1/2″ OD (Metric sizes also available) Sheath Material: 316 stainless steel standard, other materials available Excitation Current: 1mA or less recommended, 5mA maximum Insulation Resistance: At 21°C (70°F) with all external surfaces dry, the resistance between any leadwire and the sheath is 500 megohms or greater at 250 VDC.

Mineral Insulated (MGO) Sensors

 

Temperature Transmitters

 

Resistance Temperature Detectors

Industrial Thermocouples

 

 

Thermowells

 

 

 

Custom Designed sensor

 

Plastics & Packaging

 

Food, Dairy, & Pharma

Calculators

Power Flow Rate Temp Calculator

Calculate the electrical power, flow rate or temperature requirement.
airflow in standard cubic feet per minute
temperature rise in degrees F from the inlet to the exhaust
Watts = SCFM x ΔT/2.5

Temperature Conversion Calculator

Calculate the electrical power, flow rate or temperature requirement.
°F = ((( °C * 9) / 5 ) + 32)
°C = ((( °F - 32) * 5 ) / 9)

Three-Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * (V * √2)
V = (W / LC) / √2
LC = W / (V * √2)

Single Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * V
V = LC * W
LC = W / V

Ohms Law Calculator

Fill in two values to find the other two.

O = V / A

O = V² / W

O = W / A²

V = A * O = A * (V/A)

V = √(W * O)

V = W / A

A = V / O

A = W/ V

A = √(W / O)

W = A * V

W = V² / O

W = A² * O

Heat Transfer Through Convection Calculator

ρ = density (lb/ft3)

V = volume flow rate (ft3/hour)

Cp = specific heat (Btu/lb°F)

Ta-Tb = temperature differential (°F)

Q = ρ x V x Cp x (Ta-Tb)


Fill in four values

ρ = density (lb/ft3)
V = volume flow rate (ft3/hour)
Cp = specific heat (Btu/lb°F)
Ta-Tb = TD (°F)
Q = ρ x V x Cp x (Ta-Tb)

ACFM to SCFM

ACFM = airflow in actual cubic feet per minute

P = gage pressure (psi)

T = gas temperature °R = 460 + °F

SCFM = airflow in standard cubic feet per minute


Find Standard Cubic Feet per Minute based on data from your Actual Cubic Feet per Minute Rotameter

airflow in actual cubic feet per minute
gage pressure (psi)
gas temperature °R = 460 + °F
airflow in standard cubic feet per minute

Standard Flow Rate (SCFM) Calculator

Calculate the SCFM.
Actual cubic feet per minute
Actual pounds per square inch at Gauge
Actual temperature in °F. °R = 460 + °F
CFM * (PSI actual / 14.7psi)*(528°R / T actual)

Pressure Conversion

Fill in one value to calculate the other.
PSI = Bar * 14.504
Bar = PSI / 14.504

Mass Flow to volume Metric Flow

Fill in one value to calculate the other two
kg/h = Kilogram Per Hour (lb/min multiply by 27.216)
Lbs/min = Pounds per minute (kg/h divide by 27.216)
SCFM = Standard cubic feet per minute

Power Flow Rate Temp Calculator

Calculate the electrical power, flow rate or temperature requirement.
airflow in standard cubic feet per minute
temperature rise in degrees F from the inlet to the exhaust
Watts = SCFM x ΔT/2.5

Temperature Conversion Calculator

Calculate the electrical power, flow rate or temperature requirement.
°C = ((( °F - 32) * 5 ) / 9)
°F = ((( °C * 9) / 5 ) + 32)

Three-Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * (V * √2)
V = (W / LC) / √2
LC = W / (V * √2)

Single Phase Unit Calculator

Fill in two values to find the 3rd.
W = LC * V
V = LC * W
LC = W / V

Ohms Law Calculator

Fill in two values to find the other two.

O = V / A

O = V² / W

O = W / A²

V = A * O = A * (V/A)

V = √(W * O)

V = W / A

A = V / O

A = W/ V

A = √(W / O)

W = A * V

W = V² / O

W = A² * O

Heat Transfer Through Convection Calculator

ρ = density (lb/ft3)

V = volume flow rate (ft3/hour)

Cp = specific heat (Btu/lb°F)

Ta-Tb = temperature differential (°F)

Q = ρ x V x Cp x (Ta-Tb)


Fill in four values

ρ = density (lb/ft3)
V = volume flow rate (ft3/hour)
Cp = specific heat (Btu/lb°F)
Ta-Tb = TD (°F)
Q = ρ x V x Cp x (Ta-Tb)

ACFM to SCFM

ACFM = airflow in actual cubic feet per minute

P = gage pressure (psi)

T = gas temperature °R = 460 + °F

SCFM = airflow in standard cubic feet per minute


Find Standard Cubic Feet per Minute based on data from your Actual Cubic Feet per Minute Rotameter

airflow in actual cubic feet per minute
gage pressure (psi)
gas temperature °R = 460 + °F
airflow in standard cubic feet per minute

Standard Flow Rate (SCFM) Calculator

Calculate the SCFM.
Actual cubic feet per minute
Actual pounds per square inch at Gauge
Actual temperature in °F. °R = 460 + °F
CFM * (PSI actual / 14.7psi)*(528°R / T actual)

Pressure Conversion

Fill in one value to calculate the other.
PSI = Bar * 14.504
Bar = PSI / 14.504

Mass Flow to volume Metric Flow

Fill in one value to calculate the other two
Kg/h = Kilogram Per Hour (lb/min multiply by 27.216)
Lbs/min = Pounds per minute (kg/h divide by 27.216)
SCFM = Standard cubic feet per minute