Air Duct Temperature Sensor

air duct temperature sensor NTC10, PT100 Probe length: 10mm, 15mm, 20mm Anti frost/fire protection weight: 135g

Air Duct Temperate Sensor Features    

·          Thermistor,PT or NI sensing elements to fit your system

·          Simple and secure installation

·          Wide range of temperature probes

·          Compact size and modern design

Applications

·          On return air ducts to measure heating/cooling return air

·          On supply air ducts to measure heating/cooling supply air

·          In heat exchangers and air handling units to control heating/cooling coils for temperature and humidity control

·          As frost protection sensor

Temperature Sensor

The sensor measures the temperature by use of a NTC, PT or NI sensing element. The sensing element is either a glass packed thermistor with a negative temperature coefficient or a platinum film sensor or a thin nickel layer on a ceramic substrate. Its resistance changes according to the temperature. The change follows a specified curve. Below is a list of available sensor elements, curves and accuracies:

Item name	Sensing element	Curve	Compatible with
N18	Thermistor 1.8k at 25 °C	Curve 5	TAC, CSI
N3	Thermistor 3k at 25 °C	Curve 6	Alerton
N10	Thermistor 10k at 25 °C	Curve 24	Hysine, Alerton,ALC, Delta,Trane, CSI
N11	Thermistor 10k at 25 °C	Curve 7	Andover, Invensys, Carrier, KMC
N20	Thermistor 20k at 25 °C	Curve 20	Honeywell
N100	Thermistor 100k at 25 °C	Curve 9	Siemens SBT
Tp1	PT100	0.3851ohm/K	Honeywell
Tp2	PT1000	3.851ohm/K	Johnson Control
TK5	NI1000	5000ppm/k	Siemens SBT

Ordering

Ordering number:TS-XX-D-YY

XX indicates the sensor element optional,see table above.

YY indicates the probe length. Standard probe length is 20 cm.

For example:TS-N10-D-20

-N10 indicates the sensor element is Thermistor 10k .

-20     indicates the probe length is 20 cm.

Duct probes should be installed directly on the duct, in an area where the air stream is well mixed:

·          Locate a supply air sensor two or three meters down stream from the nearest fan and coil.

·          Mount the return air sensor close to the air inlet but downstream from a return fan if one is present.

·          To install the sensor, assemble base plate and probe, then drill a 8 mm hole and two 3 mm holes on a diameter of 25 mm in the duct.

·          Use two self-tapping sheet metal screws to tighten the mounting circuit in the cover.

·          Connect the wires according to the wiring diagram to the measuring circuit in the cover:

o         The Thermistors require two conductors; normally 18ga unshielded twisted pair.

o         The PT100, PT1000 and NI1000 sensors come with each two terminal connectors in order to connect up to four conductors for compensating conductor resistance.

·          Assemble the cover with the mounting plate.

·          Insert the assembled probe through the center opening of the mounting plate into the air stream.

·          Tighten the horizontal screw on the mounting plate to fix the probe to the duct.

Technical Specification

Sensing Probe	Thermistor: Range Accuracy	NTC -30----70°C ±0.5k
	Platinum-Film: Range Accuracy	PT,  0.3851ohm/k -30----70°C ±0.3k
	Nickel Thin Layer      Range      Accuracy	NI, 5000 ppm/k -30----70°C ±1k
Connection	Connection Terminals	2.5 mm2
Environment	OperationClimatic ConditionsTemperatureHumidity	To IEC 721-3-3class 3 K5-4070°C<95% r.h.
	Transport & StorageClimatic ConditionsTemperatureHumidityMechanical Conditions	To IEC 721-3-2 and IEC 721-3-1class 3 K3 and class 1 K3-4080°C<95% r.h.class 2M2
Standards	conform according to EMC Standard 89/336/EECEMEI Standard 73/23/EEC	EN 61 000-6-1/ EN 61 000-6-3
	Automatic electrical controls for household and similar use Special requirement on temperature dependent controls	EN 60 730 1 EN 60 730 2 - 9
	Pollution Class	Normal acc. To EN 60 730,RoHS compliant
	Degree of Protection	IP56 to EN 60 529
	Safety Class	III (IEC 60536)
Housing Materials	Cover & Mounting PlateProbe	Fire proof ABS plastic Stainless Steel
General	Dimensions [mm]	Cover: 42 x 112 x 88 (H x W x D)Probe: ø 6 x 200 (Diameter x L)
	Weight (including package)	135g

Air Duct Temperature Sensor