SZ-T75 Series | NTC Temperature Sensors with Metal Probe

A. Product Overview

The Subzero SZ-T75 Series NTC Temperature Sensors are designed for accurate temperature sensing in commercial and industrial applications. These sensors use a 10k NTC thermistor at 25 C and come with a rugged metal probe for stable temperature detection.

The SZ-T75 Series is suitable for refrigeration systems, cold rooms, HVAC equipment, freezers, environmental chambers and process monitoring systems. With PVC insulated cable and metal probe construction, the sensor is easy to install and suitable for regular field use.

The series is available in different cable length options, including SZ-T75-3000 with 3 meter cable and SZ-T75-5000 with 5 meter cable. This makes it suitable for both compact machines and installations where longer sensor wiring is required.

Key Specifications

Product Type: NTC Temperature Sensor
Series: SZ-T75 Series
Thermistor: 10k ohm at 25 C
Sensor Type: NTC thermistor
Temperature Range: -50 C to 99 C
Probe Type: Metal body probe
Probe Size: 5 mm diameter x 25 mm length
Cable Type: PVC insulated wire
Available Variants: SZ-T75-3000 and SZ-T75-5000
Cable Length Options: 3 meter and 5 meter
Suitable Applications: Refrigeration, HVAC, cold storage, freezers and industrial temperature monitoring

B. Working Principle

The Subzero SZ-T75 Series works on the principle of an NTC thermistor. NTC means Negative Temperature Coefficient.

In this type of sensor, the resistance changes according to temperature. When the temperature increases, the resistance of the sensor decreases. When the temperature decreases, the resistance of the sensor increases.

The connected temperature controller reads this change in resistance and converts it into a temperature value. Based on this temperature reading, the controller can operate cooling, heating, alarm or protection functions.

This makes the SZ-T75 Series suitable for automatic temperature control in refrigeration units, cold rooms, HVAC systems and industrial machines.

C. Why It Is Used

The Subzero SZ-T75 Series NTC Sensor is used when accurate and stable temperature monitoring is required in refrigeration and industrial control systems.

It is used because it helps:

Measure temperature accurately in cold rooms and freezers
Maintain proper temperature in refrigeration systems
Support automatic cooling and heating control
Protect stored products from temperature variation
Improve temperature control in HVAC systems
Monitor process temperature in industrial equipment
Connect easily with compatible NTC temperature controllers
Provide flexible installation through 3 meter and 5 meter cable options
Offer durable sensing through a metal probe design

The metal probe provides better protection to the sensing element, while the PVC cable makes it easy to install in panels, machines and field applications.

D. Suitable Buyers

The Subzero SZ-T75 Series NTC Sensor is suitable for:

Cold storage owners
Refrigeration service technicians
HVAC contractors
Chiller manufacturers
Freezer manufacturers
Control panel manufacturers
OEM machine builders
Industrial maintenance teams
Food storage companies
Pharmaceutical storage facilities
Greenhouse and environmental chamber users
Temperature controller dealers
Electrical and automation traders
Industrial automation suppliers
Service engineers working with temperature controllers

FAQ

1. What is the Subzero SZ-T75 Series NTC Sensor used for?

The Subzero SZ-T75 Series NTC Sensor is used for temperature measurement in refrigeration systems, cold storage rooms, freezers, HVAC systems, food storage, pharmaceutical storage and industrial process monitoring.

2. What is the resistance value of the SZ-T75 Series sensor?

The SZ-T75 Series sensor uses a 10k ohm NTC thermistor at 25 C.

3. What is the temperature range of this sensor?

The temperature range of the Subzero SZ-T75 Series NTC Sensor is -50 C to 99 C.

4. What are the available cable lengths in the SZ-T75 Series?

The SZ-T75 Series is available in 3 meter and 5 meter cable variants. The SZ-T75-3000 comes with 3 meter cable, while the SZ-T75-5000 comes with 5 meter cable.

5. What is the probe size of the SZ-T75 sensor?

The sensor has a metal probe with 5 mm diameter and 25 mm length.

6. Is this sensor suitable for cold storage applications?

Yes, this sensor is suitable for cold storage facilities, cold rooms, freezers and refrigeration units where accurate temperature monitoring is required.

7. Can the SZ-T75 Series sensor be used in HVAC systems?

Yes, the SZ-T75 Series NTC Sensor can be used in HVAC systems for temperature monitoring and control applications.

8. Is the probe made of metal?

Yes, the sensor comes with a metal body probe designed for durability and stable temperature sensing.

9. Can this sensor be connected with a temperature controller?

Yes, this sensor can be connected with compatible temperature controllers that support 10k NTC sensor input.

10. Which industries commonly use the SZ-T75 Series NTC Sensor?

This sensor is commonly used in refrigeration, HVAC, cold storage, food storage, pharmaceutical storage, industrial automation, environmental chambers and process monitoring applications.

11. What is the difference between SZ-T75-3000 and SZ-T75-5000?

The main difference is the cable length. SZ-T75-3000 comes with a 3 meter cable, while SZ-T75-5000 comes with a 5 meter cable.

12. Why is a metal probe used in this sensor?

The metal probe protects the sensing element and provides stable temperature measurement in refrigeration, HVAC and industrial applications.