HTemp-485 T3419 - Temperature and humidity monitoring

Precise Temperature and Humidity Monitoring with the HTemp-485 T3419

Precise monitoring of temperature and humidity in demanding industrial and outdoor environments requires robust, versatile sensors that deliver accurate data and integrate seamlessly into monitoring systems. The HTemp-485 T3419 is an advanced temperature and humidity sensor specifically developed for indoor and outdoor use.

With an extended temperature range from –30 °C to +105 °C, relative humidity measurement from 0–100 % RH, an integrated LCD display, and an RS-485 interface, this sensor provides a reliable solution for industrial applications. The sensor also calculates parameters such as dew point, absolute humidity, and specific humidity, making it ideal for complex monitoring tasks. Below is a detailed overview of the HTemp-485 T3419 including its technical specifications, areas of application, and advantages.

Overview of the HTemp-485 T3419

The HTemp-485 T3419 is a combined temperature and humidity sensor with a high-quality semiconductor element compliant with EN 60751 / IEC 60751. It is designed for use in industrial environments, data centers, food and pharmaceutical storage, and environmental monitoring systems. Its IP40 protection rating allows for use indoors and outdoors, even in high-humidity environments (up to 100 % RH).

The integrated LCD display shows current measured values in real time, enabling quick visual inspection. The sensor includes a 1-meter cable for flexible positioning and communicates via RS-485 using a simple protocol that ensures stable data transmission over long distances.

The HTemp-485 T3419 is compatible with Poseidon devices such as the Poseidon2 4002 and Poseidon 2250, allowing seamless integration into existing monitoring systems. The sensor is powered either via the Poseidon unit (12 V) or through an external power supply of 10–35 V DC. With compact dimensions of 110 × 90 × 40 mm and a weight of 218 g, the sensor is easy to install and suitable for wall mounting in industrial or SoHo-IT environments.

Technical Specifications

The HTemp-485 T3419 offers a variety of technical features that make it an excellent choice for combined temperature and humidity monitoring:

• Measurement range:
  • Temperature: –30 °C to +105 °C, accuracy ±0.4 °C (–30 °C to +100 °C), ±4 % (+100 °C to +105 °C), resolution 0.1 °C
  • Relative humidity: 0–100 % RH, accuracy ±2.5 % RH (at 5–95 % RH), linearity ±0.2 % RH, resolution 0.1 % RH
  • Dew point: –60 °C to +80 °C, accuracy ±1.5 °C (at T < 25 °C and RH > 30 %), resolution 0.1 °C
  • Absolute humidity: 0–400 g/m³, accuracy ±3 g/m³ (at T < 40 °C), resolution 0.1 g/m³
  • Specific humidity: 0–550 g/kg, accuracy ±2 g/kg (at T < 35 °C), resolution 0.1 g/kg
  • Mixing ratio: 0–995 g/kg, accuracy ±2 g/kg (at T < 35 °C), resolution 0.1 g/kg
  • Specific enthalpy: 0–995 kJ/kg, accuracy ±3 kJ/kg, resolution 0.1 kJ/kg
• Sensing element: Semiconductor, known for high precision and stability
• Protection rating: IP40, suitable for indoor and outdoor applications
• Interface: RS-485 with terminal block and RJ45 connection, compatible with Poseidon2 4002 and Poseidon 2250
• Power supply: 12 V via Poseidon units or 10–35 V DC externally
• Power consumption: Low 10 mA, ideal for energy-efficient applications
• Operating environment: –30 °C to +105 °C, 0–100 % relative humidity
• Storage environment: –30 °C to +60 °C, 5–95 % relative humidity
• Dimensions and weight: 110 × 90 × 40 mm (W×H×D), 218 g
• Cable: 1 meter
• Installation: Wall mounting with mural design
• Warranty: 24 months

The ability of the sensor to calculate additional parameters such as dew point, absolute humidity, and specific enthalpy makes it especially valuable for applications requiring detailed environmental data.

Applications

The HTemp-485 T3419 is suitable for a wide range of applications, especially in environments that require precise temperature and humidity monitoring:

• Server room monitoring: Precise control of temperature and humidity in data centers to prevent overheating and condensation
• Food and harvest storage: Monitoring of environmental conditions in food warehouses or production facilities to ensure product quality
• Pharmaceutical storage: Ensuring optimal conditions for the storage of medications and medical materials
• Environmental monitoring: Use in residential or urban areas to record temperature and humidity data
• Broad monitoring systems: Integration into networks with multiple sensors for comprehensive environmental analysis

Compatibility with Poseidon devices such as the Poseidon2 4002 allows for integration into complex monitoring systems that deliver real-time data and alerts. The LCD display allows on-site reading of measured values, while the 1-meter cable adds extra flexibility in positioning.

Advantages of the HTemp-485 T3419

The HTemp-485 T3419 offers numerous advantages that set it apart from other temperature and humidity sensors:

• Extended temperature range: Measures up to +105 °C, ideal for warmer environments
• Combined measurement: Measures temperature, humidity, and calculates parameters like dew point and absolute humidity
• LCD display: Displays current values in real time, ideal for quick local checks
• Robust construction: IP40 rating for use in demanding, high-humidity environments
• Easy installation: Wall mounting and terminal block/RJ45 connection for quick setup
• Compatibility: Seamless integration with Poseidon2 4002 and Poseidon 2250 for power and data transmission
• Energy efficiency: Low power consumption of just 10 mA for sustainable operation

Installation and Operation

Installing the HTemp-485 T3419 is straightforward. The sensor is mounted to the wall, with connection via terminal block or RJ45 to the Poseidon2 4002 or an external power source. The simple RS-485 communication protocol allows for fast integration into existing monitoring systems.

The LCD display shows real-time values for temperature, humidity, and calculated parameters, simplifying local operation. The IP40 protection ensures reliable operation in high-humidity environments, while the 1-meter cable provides flexible positioning of the measuring head.

The HTemp-485 T3419 is a versatile and reliable solution for combined temperature and humidity monitoring in industrial and demanding environments. With its extended temperature range up to +105 °C, integrated LCD display, and compatibility with Poseidon devices, it offers precision and flexibility for a wide range of applications—from server rooms to food and pharmaceutical storage.

Its robust design, easy installation, and advanced parameter calculations make it a top choice for businesses that value accurate environmental data and long-lasting technology.