Temperature Sensors Series GENERAL INFORMATION Series temper

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Temperature Sensors Series GENERAL INFORMATION Series temper

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Temperature Sensors
Series
GENERAL INFORMATION Series temperature sensors from MICRO SWITCH respond rapidly temperature changes, accurate ±0.7°C 20°C-completely interchangeable without recalibration. They (resistance temperature detector) sensors, provide sensitivity, with inherently near linear outputs. sensing element silicon chip, 0.040 0.050 with thin film resistive network pattern. chips individually laser trimmed provide 2000 ohms nominal resistance room temperature (20°C), accurate ±0.7°C. Maximum error over entire operating range +150°C (-40 +302°F) ±2.5°C. This extremely accurate trimming provides true sensor-to-sensor interchangeability without recalibration user circuit.
FEATURES Interchangeable without sensor-tosensor recalibration Very small thermal mass fast response liquid temperature sensing Linear temperature sensitivity Proven thin film processing reliability cost Long term stability 2000 ohms nominal resistance 20°C
TYPICAL APPLICATIONS HVAC room, duct refrigerant temperature Motors overload protection Electronic circuits semiconductor protection Process control temperature regulation Automotive temperature Appliances cooking temperature
TD4A Liquid temperature sensor TD4A liquid temperature sensor twoterminal threaded anodized aluminum housing. environmentally sealed liquid temperature sensors designed simplicity installation, such side truck. TD4A sensors designed total immersion. Typical response time (for time constant) minutes still seconds still water (unmounted position). temperature rise 0.12° C/milliwatt suspended leads still air, 0.08°C/milliwatt when mounted square foot 0.25 thick aluminum foil. TD5A Miniature temperature sensor TD5A subminiature temperature sensor with three leads (center connected). response times 11.0 seconds temperature rise .23°C milliwatt still air. TD4A
ORDER GUIDE
Catalog Listing TD4A TD5A Description Liquid temperature sensor, 1.5° threaded (3/8-24 UNF-2A) anodized aluminum housing, inch black insulated leads Subminiature package, cost, fast response time (TO-92)
MOUNTING DIMENSIONS (for reference only)
TD5A
Temperature
Center lead connected
Honeywell MICRO SWITCH Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada
Temperature Sensors
ABSOLUTE MAXIMUM RATINGS
Operating temperature range Storage temperature range Voltage +150°C (-40 +302°F) 165°C (-67 +338°F) Continuous hours)
Series
Linearity (-25 85°C) (-40 150°C) sensors linearized within ±0.2%. Repeatability
Figure Series Resistance Temperature
INTERCHANGEABILITY (with maximum current)
Temperature -40°C (-40°F) -30°C (-22°F) -20°C (-4°F) -10°C (14°F) (32°F) +10°C (50°F) +20°C (68°F) +30°C (86°F) +40°C (104°F) +50°C (122°F) Resistance (Ohms) 1584 (1.9°C) 1649 (1.7°C) 1715 (1.5°C) 1784 (1.3°C) 1854 (1.1°C) 1926 (0.8°C) 2000 (0.7°C) 2076 (0.7°C) 2153 (0.8°C) 2233 (0.9°C) Temperature +60°C (140°F) +70°C (158°F) +80°C (176°F) +90°C (194°F) +100°C (212°F) +110°C (230°F) +120°C (248°F) +130°C (266°F) +140°C (284°F) +150°C (302°F) Resistance (Ohms) 2314 (1.1°C) 2397 (1.2°C) 2482 (1.4°C) 2569 (1.6°C) 2658 (1.8°C) 2748 (2.0°C) 2840 (2.0°C) 2934 (2.2°C) 3030 (2.4°C) 3128 (2.5°C)
recommended that resistance measurements made less minimize internal heating sensor. Measurements currents will damage sensor, resistance characteristics should adjusted internal heating. Equation computing resistance: (3.84 10-3 (4.94 10-6 Resistance temperature Resistance Temperature Figure Linear Output Voltage Circuit
ELECTRICAL INTERFACING high nominal resistance, positive temperature coefficient linear sensitivity characteristics Series temperature sensors simplifies task designing electrical interface. Figure simple circuit that used linearize voltage output within 0.2% ±0.4°C error over range -40° +150°C (-40° +302°F). some applications, desirable detect particular temperature. Figure illustrates this accomplished. comparator circuit shown, potentiometer adjusted correspond desired temperature.
Figure Adjustable Point (Comparator) Interface
Honeywell MICRO SWITCH Sensing Control 1-800-537-6945
1-815-235-6847 International 1-800-737-3360 Canada

Temperature Sensors Series GENERAL INFORMATION Series temper

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