Honeywell HEL-700 Platinum User Manual

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Temperature Sensors HEL-700 Platinum RTDs

FEATURES

1 Linear resistance vs temperature 1 Accurate and Interchangeable 1 Excellent stability 1 Small for fast response 1 Wide temperature range 1 3-packaging options

TYPICAL APPLICATIONS

1 HVAC - room, duct and refrigerant

equipment

1 Electronic assemblies - thermal man-

agement, temperature compensation

1 Process control - temperature regu-

lation

MOUNTING DIMENSIONS (for reference only) HEL-700 Ribbon Lead

HEL-700 Thin Film Platinum RTDs (Resistance Temperature Detectors) provide excellent linearity, accuracy, stability and interchangeability. Resistance changes linearly with temperature. Laser trimming

provides ±0.3°C interchangeability at 25°C.

1000V, 375 alpha provides 10X greater sensitivity and signal-to-noise. Both 1000V and 100V provide interchange-

abilities of ±0.6°C or better from -100°C to 100C, and ±3.0°C at 500°C.

ORDER GUIDE

HEL-700 Thin Film Platinum RTD

-U 1000V, 0.00375 V/V/°C

-T 100V, 0.00385 V/V/°C DIN Standard

-0 ±0.2% Resistance Trim (Standard)

-1 ±0.1% Resistance Trim (Optional)

-A Radial Ribbon Lead

-B Radial Chip

-C SMT Axial Flip Chip (1000V ONLY)

HEL-700 Radial Chip

HEL-700 SMT (Axial) Flip Chip

Fig. 1: Linear Output Voltage

Temperature

Fig. 2: Adjustable Point (Comparator) Interface

Honeywell1 Sensing and Control11-800-537-6945 USA1F1-815-235-6847 International11-800-737-3360 Canada

Page 3

Temperature Sensors HEL-700 Platinum RTDs

FUNCTIONAL BEHAVIOR

J R0(1+AT+BT2−100CT3+CT4)

RT J Resistance (V) at temperature T (°C)

J Resistance (V) at 0°C

T J Temperature in °C

A J a +

ad B J − ad C 100 100

J −ab

T<0

100

CONSTANTS

Alpha, a (°C

-1

) 0.00375 0.003850

±0.000029 ±0.000010

Delta, d (°C) 1.605 ± 0.009 1.4999 ± 0.007 Beta, b (°C) 0.16 0.10863

-1

A (°C

) 3.81×10

-2

B (°C

) −6.02×10

-4

C (°C

) −6.0×10

-3

-7

-12

3.908×10

−5.775×10

−4.183×10

-3

-7

-12

Both b J 0 and C J 0 for T>0°C

RESISTANCE VS TEMPERATURE CURVE

ACCURACY VS TEMPERATURE

HEL-700 platinum RTDs are available in two base resistance trim tolerances: ±0.2% or ±0.1%. The corresponding resistance interchangeability and temperature accuracy for these tolerances are:

Tolerance Standard ±0.2% Optional ±0.1%

Temperature ±DR* ±DT ±DR* ±DT

(°C) (V)(°C) (V)(°C)

−200 6.8 1.6 5.1 1.2

−100 2.9 0.8 2.4 0.6

0 2.0 0.5 1.0 0.3

100 2.9 0.8 2.2 0.6

200 5.6 1.6 4.3 1.2

300 8.2 2.4 6.2 1.8

400 11.0 3.2 8.3 2.5

500 12.5 4.0 9.6 3.0

600 15.1 4.8 10.4 3.3

*1000V RTD. Divide DR by 10 for 100V RTD.

CAUTION

PRODUCT DAMAGE

The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESD-induced damage and/or degradation, take normal ESD precautions when handling this product.

SPECIFICATIONS

Sensor Type Thin film platinum RTD;

J 1000 V @0°C; alpha J 0.00375 V/V/°C

J 100 V @0°C; alpha J 0.00385 V/V/°C

Temperature Range −200 to +540°C (−300 to +1000°F) Temperature Accuracy ±0.5°C or 0.8% of temperature, °C (R

±0.3°C or 0.6% of temperature, °C (R

Base Resistance and Interchangeability, R

± DR

1000 ± 2 V (±0.2%) @ 0°C 1000 ± 1 V (±0.1%) @ 0°C (optional)

±0.2% trim), whichever is greater

±0.1% trim), whichever is greater (optional)

Linearity ±0.1% of full scale for temperatures spanning −40° to +125°C

±2.0% of full scale for temperatures spanning −200° to +540°C

Time Constant <0.15 seconds in water @ 3 ft./sec.

<1 second on metal surfaces: <4 seconds in air @ 10 ft./sec.

Operating Current 2 mA max. For self-heating errors of 1°C

1 mA recommended

Stability Better than 0.25°C/year: 0.05°C/5 years for occupied environments Self-Heating 0.3 mW/°C Insulation Resistance >50 MV @ 50 VDC @ 25°C

Case Material 99% alumina support, vapor deposited alumina passified resistance portion, refractory glass

passified overall

Lead Material – Ribbon Platinum ribbon, 0.002 × 0.010 × 0.16 in. long nominal

Lead Pull Strength – Ribbon 200 grams nominal pulling up from surface

Honeywell1 Sensing and Control11-800-537-6945 USA1F1-815-235-6847 International11-800-737-3360 Canada

Page 4

Temperature Sensors HEL-700 Series Platinum RTDs

FEATURES

1 Linear resistance vs temperature 1 Accurate and Interchangeable 1 Excellent stability 1 Teflon or fiberglass lead wires 1 Wide temperature range 1 Ceramic case material

TYPICAL APPLICATIONS

1 HVAC – room, duct and refrigerant

equipment

1 Instrument and probe assemblies –

temperature compensation

1 Process control – temperature

regulation

ORDER GUIDE

HEL-705 28 ga. TFE Teflon, 2-wire only

HEL-707 28 ga. Fiberglass, 2-wire only

HEL-711 28 ga. TFE Teflon (2-wire 1000V, 3-wire 100V)

HEL-712 28 ga. Fiberglass (2-wire 1000V, 3-wire 100V)

HEL-716 24 ga. TFE Teflon (2-wire 1000V, 3-wire 100V)

HEL-717 24 ga. Fiberglass (2-wire 1000V, 3-wire 100V)

-U 1000V, 0.00375 V/V/°C

-T 100V, 0.00385 V/V/°C DIN Standard

-0 ±0.2% Resistance Trim (Standard)

-1 ±0.1% Resistance Trim (Optional)

-12 Lead wire length, 12 inches

-00 No NIST calibration

-C1 NIST @ 0°C

-C2 NIST @ 0 & 100°C

-C3 NIST @ 0, 100 & 260°C

HEL-700 Series elements are fully assembled, ready to use directly or in probe assemblies without the need for fragile splices to extension leads.

The 1000V, 375 alpha version, provides 10X greater sensitivity and signal-tonoise. Optional NIST calibrations im-

prove accuracy to ±0.03°C at 0°C.

Fig. 1: Wheatstone Bridge 2-Wire Interface

Fig. 2: Linear Output Voltage

MOUNTING DIMENSIONS (for reference only)

Fig. 3: Adjustable Point (Comparator) Interface

CAUTION

PRODUCT DAMAGE

Honeywell1Sensing and Control11-800-537-6945 USA1F1-815-235-6847 International11-800-737-3360 Canada

Temperature

Page 5

Temperature Sensors HEL-700 Series Platinum RTDs

FUNCTIONAL BEHAVIOR

J R0(1+AT+BT2−100CT3+CT4)

RT J Resistance (V) at temperature T (°C)

J Resistance (V) at 0°C

T J Temperature in °C

A J a +

ad B J − ad C 100 100

J−ab

T<0

100

CONSTANTS

Alpha, a (°C

-1

) 0.00375 0.003850

±0.000029 ±0.000010

Delta, d (°C) 1.605 ± 0.009 1.4999 ± 0.007 Beta, b (°C) 0.16 0.10863

-1

A (°C

) 3.81×10

-2

B (°C

) −6.02×10

-4

C (°C

) −6.0×10

-3

-7

-12

3.908×10

−5.775×10

−4.183×10

-3

-7

-12

Both b J 0 and C J 0 for T>0°C

RESISTANCE VS TEMPERATURE CURVE

ACCURACY VS TEMPERATURE

Tolerance Standard ±0.2% Optional ±0.1%

Temperature ±DR* ±DT ±DR* ±DT

(°C) (V)(°C) (V)(°C)

−200 6.8 1.6 5.1 1.2

−100 2.9 0.8 2.4 0.6

0 2.0 0.5 1.0 0.3

100 2.9 0.8 2.2 0.6

200 5.6 1.6 4.3 1.2

300 8.2 2.4 6.2 1.8

400 11.0 3.2 8.3 2.5

500 12.5 4.0 9.6 3.0

600 15.1 4.8 10.4 3.3

*1000V RTD. Divide D by 10 for 100V RTD.

NIST CALIBRATION

NIST traceable calibration provides resistance readings at 1, 2 or 3 standard temperature points to yield a resistance versus temperature curve with 10x better accuracy.

Calibration 1 Point 2 Point 3 Point

T (°C) ±DT (°C) ±DT (°C) ±DT (°C)

-200 0.9 — —

-100 0.5 0.27 0.15

0 0.03 0.03 0.03

100 0.4 0.11 0.07

200 0.8 0.2 0.08

300 1.2 0.33 6.2

400 1.6 0.5 8.3

500 2.0 0.8 9.6

600 2.6 1.2 10.4

SPECIFICATIONS

Sensor Type Thin film platinum RTD;

J 1000 V @0°C; alpha J 0.00375 V/V/°C

J 100 V @0°C; alpha J 0.00385 V/V/°C

Temperature Range TFE Teflon: −200° to +260°C (−320°to +500°F)

Fiberglass: −75° to +540°C (−100° to +1000°F)

Temperature Accuracy ±0.5°C or 0.8% of temperature, °C (R

±0.3°C or 0.6% of temperature, °C (R

Base Resistance and Interchangeability, R

± DR

1000 ± 2 V (±0.2%) @ 0°C 1000 ± 1 V (±0.1%) @ 0°C (optional)

±0.2% trim), whichever is greater

±0.1% trim), whichever is greater (optional)

Linearity ±0.1% of full scale for temperatures spanning −40° to +125°C

±2.0% of full scale for temperatures spanning −75° to +540°C

Time Constant <0.5 sec. 0.85 inch O.D. in water at 3 ft/sec; <1.0 sec, 0.85 inch O.D. in still water

Operating Current 2 mA maximum for self heating errors of <1°C; 1 mA recommended Stability <0.25°C/year; 0.05°C per 5 years in occupied environments Self Heating <15 mW/°C for 0.85 O.D. typical Insulation Resistance >50 MV at 50 VDC at 25°C

Construction Alumina case; Epoxy potting (Teflon leads); Ceramic potting (fiberglass leads)

Lead Material Nickel coated stranded copper, Teflon or Fiberglass insulated

Honeywell1 Sensing and Control11-800-537-6945 USA1F1-815-235-6847 International11-800-737-3360 Canada