Many applications require continuous temperature monitoring of various devices. The Resistance Temperature Detectors (RTDs) and Bearing Temperature Detectors (BTDs), due to their linear resistance-temperature characteristic are used for temperature sensing, measurement and control of these devices. The output signal of RTD/ BTD is given to a temperature indicator or a temperature controller for achieving the desired measurement and control. Features: Various lead lengths and colour codes of wires can be supplied. Customized designs and enclosures. Ex-stock delivery of standard models. The RTDs are available in various dimensions right from small Bead type sensors to Plate type RTDs. The BTDs are manufactured as per customer requirements and design. Please contact us for readily available, standard designs and special designs. Applications: The RTDs and BTDs can be used for continuous temperature indication and monitoring for the following AC Motors. DC Motors. AC Generators (Alternators). Transformers

The Thermistor Protection Unit utilises signal from positive temperature coefficient thermistors. These are temperature sensors having low resistance under normal conditions and whose resistance increases to a very high value at critical temperature. The response time of thermistor is very quick, to the tune of

Two sets of Thermistors of different switching temperatures are connected to the Dual Thermistor Protection Unit, one set for Alarm and the other set for Trip. Normally a temperature difference between Alarm and Trip is 20-30°C. Each set of Thermistors consists of 3 Thermistors connected in series. The relay gets actuated only when the ALARM and TRIP Thermistors are connected to it. When the ALARM Temperature is attained the ALARM contacts changeover and the indication is obtained.The potential free ALARM contacts can be used for connecting to a lamp or siren for annunciation. If no corrective action is taken after the ALARM temperature, the TRIP temperature is attained and the TRIP contacts are activated and motor supply is cut-off.

Many applications require continuous temperature monitoring of bearing housing. The PT 100 Bearing Temperature RTDs due to their linear resistance-temperature characteristic are used for temperature sensing, measurement and control of these devices. The output signal of RTD BTD is given to a temperature indicator or a temperature controller for achieving the desired measurement and control.

Insta Control's PTC Thermistor offers protection against: Single Phasing Under/ Over voltage Continuous overloading Intermittent duty or Excessive start/ stops Insufficient ventilation or Excessive ambient temperature Mechanical jamming/ Overloading Bearing failure Our PTC Thermistors are manufactured in accordance with the international standards DIN 44081, 44082 and BS EN 60034-11:2004. Due to their small thermal mass, they have favorable temperature sensitivity. Insta PTC Thermistors should be placed as near as possible to the hot spot. In three phase motors, one PTC Thermistor should be embedded in each phase. Good thermal contact between PTC Thermistor and winding is essential. The PTC Thermistors should be embeded parallel to the winding.  In this way the mechanical stresses on the PTC Thermistors during forming the end turns of overhang winding can be minimized. Shrink cap is especially well suited for this because of its mechanical stability. At ambient temperature, resistance of one thermistor is between 20 ohms to 250 ohms. The resistance increases sharply in the region of the nominal response temperature. Response times Insta can supply customised connections with customised individual lead lengths, cross-sectional areas, crimped contacts etc.

Many applications require continuous temperature monitoring of bearing housing. The PT 100 Bearing Temperature RTDs due to their linear resistance-temperature characteristic are used for temperature sensing, measurement and control of these devices. The output signal of RTD/ BTD is given to a temperature indicator or a temperature controller for achieving the desired measurement and control. Features: Various lead lengths and colour codes of wires can be supplied. Customized designs and various metal housings can be supplied. The RTDs are available in various dimensions right from small Bead type sensors to Plate type RTDs. The BTDs are manufactured as per customer requirements and design. Please contact us for readily available, standard designs and special designs. Applications: The PT100 BTDs can be used for continuous temperature indication and monitoring of bearing housing for the following equipments: AC Motors. DC Motors. AC Generators (Alternators). Transformers