HD31 3-CHANNEL MULTIFUNCTION DATA LOGGER

Air and Wind Speed, CO2 – Air Quality, Humidity, Light, Pressure, Temperature

Three independent input channels Automatic recognition of the probes – Measurement of Temperature Relative Humidity Atmospheric and differential pressure Air Speed Illuminance (lux) and Irradiance Carbon dioxide (CO2) – Air Quality Direct voltage (VP473 module) and current (IP472 module).

The HD31 is a portable multifunctional instrument and datalogger with a large (43 x 58 mm) colour graphic LCD display. It has three independent inputs. Both single and combined SICRAM probes can be connected to each input to measure a variety of physical quantities:

  • Temperature
  • Relative humidity
  • Atmospheric and differential pressure
  • Air speed
  • Illuminance (lux) and Irradiance
  • Carbon dioxide ( ) – Air Quality
  • Direct voltage (VP473 module) and current (IP472 module).
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Downloads

HD31 – datasheet

HD31 – manual

Description

Sampling speed one per second each channel. Storage capacity 32,000 samples per channel.

 

Functions: CLOCK, HOLD, RELATIVE, DIFFERENCE, MINIMUM, MAXIMUM, AVERAGE. Simultaneous display of three measurements. Calibration of the individual probes with permanent storage of the calibration data inside the probe: probes can be changed without losing the calibration.

The instrument allows the input of various types of probes of different physical quantities. Platinum probes (25, 100, 500 Ω at 0°), Thermocouples K, J, E, T, N, R, S, B probes, combined R.H. and temperature, pressure also barometric one, air velocity, light, , mV and mA probes can be connected.

Centesimal temperature measurements can be carried out by PRT sensors in the range -200…+350°C, and decimal in the range +350…+850°C.

 

PMsense – Particulate Matter Transmitter

CO2 -Air Quality

Measurement of exact content op PM1.0, PM2.5 and PM10. Stand-alone or easy to integrate in Automatic Weather Station. Easy Cloud Connection.

PMsense is a PM1.0, PM2.5 and PM10 Particulate Matter transmitter with RS485 Modbus-RTU output, suitable for outdoor air quality monitoring.

The dust particles concentration is measured using the laser scattering principle.

The transmitter is maintenance-free and has fast response, high sensitivity and an excellent stability.

The PM sensor can be operated in two ways:

  • Continuous operating mode: the sensor is always active and measurements are continuously taken. In this mode at least 10,000 hours of PM sensor life are guaranteed.
  • Discontinuous Operating mode (default): the sensor is activated at regular intervals, when measurements have to be taken. This mode increases the PM sensor life.

On request, an optional  sensor can be integrated in the transmitter.

The transmitter can be supplied with up to 2 optional configurable 4,,.,20 mA, 0…5 V or 0…10  V analog outputs.

More background information on why to measure Particulate Matter (PM)

PMsenseCR -PM and CO2 Transmitter

CO2 -Air Quality

Precise measurement of Particulate Matter and CO2 for expert environments.

PMsenseCR is a PM and optionally CO2 transmitter, ideal for pharmaceutical and high-tech cleanrooms where contamination control is critical.

It ensures compliance with ISO 14644 standards using laser scattering technology to detect and classify particles by size.

Reliable & Maintenance-Free

Built for long-term stability, PMsenseCR offers fast response, high sensitivity, and extended operating life – no routine maintenance required.

Optional  Sensing

Add an integrated  sensor for comprehensive indoor monitoring.

Flexible Operation & Output

Choose between continuous or cyclic measurement modes to optimize sensor lifespan. Supports RS485 MODBUS-RTU/ASCII and 4…29 mA outputs, with five measurement channels:

 

  • 1:>0.3 m
  • 2:>0.5 m
  • 3:>1.0 m
  • 4:>2.5 m
  • 5:>5.0 m

 

MeteoData-4000 series – Multi – Purpose Data Logger with Global Connectivity

Data Acquisition Systems

Advanced data acquisition system with very low power consumption for environmental monitoring networks.

The METEODATA-4000 Series is Senseca’s next-generation environmental data logger designed for reliable, autonomous operation in demanding outdoor installations. Built as an open platform, it connects to a wide rang of COTS sensors (analogue, pulse and smart digital) and combines onboard processing, self-diagnostics and alarm handling to help ensure high-quality data in real-world conditions.

 

Key benefits

  • Very low power consumption for long-term autonomous operation.
  • Universal sensor compatibility via analogue and digital interfaces (RS-232/Rs-485, SDI-12, Modbus and more)/
  • High-capacity I/O resources designed to support complex monitoring systems.
  • Embedded data processing & alarms with up to 32 measurement channels and up to 32 alarm channels.
  • Global connectivity options including cellular, Wi-Fi, Bluetooth Low Energy, Ethernet and satellite interfaces.
  • Faster commissioning with drag-and-drop sensor setup via the software ecosystem and online sensor library.

 

Typical applications

Meteorological and hydrological monitoring, solar resource & PV plant monitoring, road weather (RWIS), air quality monitoring, early warning networks and multi-parameter monitoring projets.

 

Software & data services

The GEO-DataView software suite for METEODATA-4000 series comprises:

  • a cloud platform for simple and secure browser-based data access (Webtrans 4K),
  • a desktop software for the datalogger and sensors management (Teletrans-W4K), and
  • a mobile app (iOS and Android) for direct access to the device (GEO-DataLink).

Technical Specification

Protection class: IP64
Accuracy: ± 0.02 % of the measurement
Power supply: • rechargeable 3.7 V Li-ion internal battery
• external power supply unit
• PC’s USB port
Weight: about 400 g (with battery and protective shell)
Materials: ABS, 55 shore rubber protection lateral bands and
protective shell
Connections: • 1 USB port with mini-USB connector
• 1 RS232C serial output with RJ12 (6P6C)
connector for connection of a serial printer.
Operating conditions: -10…60 °C, 0…85% RH no condensation
Storage Temperature: -25…65 °C
Dimensions: 165 x 88 x 35 mm without rubber protective shell
180 x 102 x 46 mm with rubber protective shell
Auto-off: Configurable (2, 5, 10, 15, 20 or 30 min)
Battery life: 18 hours of continuous operation
Operating conditions instrument:: -10…60 °C, 0…85% RH no condensation
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