The HD 2020 sound level calibrator is a portable, battery operated sound source, suitable for sound level meters (portable and laboratory) and acoustic stations. It allows calibrating ½" microphones with mechanical dimensions compliant with IEC 61094-1 ("Measurement microphones. Part 1: Specifications for laboratory standard microphones") and IEC 61094-4 ("Measurement microphones. Part 4: Specifications for working standard microphones"). The calibration pressure levels of 94dB and 114dB can be selected by the keypad. The 1000 Hz frequency cannot be changed.
If the microphone is absent or not inserted correctly into the calibrator cavity, the sound level will blink on the display.
To conserve battery life, the instrument is provided with an automatic power off function: if you leave the instrument on with open cavity, it switches off automatically after 30 seconds. If the cavity is closed and the microphone is inserted, the instrument switches off 5 minutes after turning on, provided that you don't press any key.
The calibrator display shows calibration pressure level, battery life, current date and time.

Sound level calibrator class 1 according to IEC60942:2003 with LCD display. ISO 9001 calibration report included.

Advantages of the HD 2020 Sound level calibrator are:
• The 1000Hz frequency allows calibrating sound level meters with any weighting (LIN, A, B,...), without applying any correction factor.
• The calibration sound pressure level is independent of atmospheric pressure: you don't need to adjust the value according to static pressure over a wide range of values.
• The HD 2020 calibrator can be conveniently used both in laboratory and in the field. The 114 dB sound level allows performing calibrations even in high background noise environments.
• Its simplicity of use allows the use even by unskilled personnel.
• The presence of the LCD helps you through the steps of setting the calibrator, signal the end of the span and allows you to check the status of the battery.

ACOUSTIC CALIBRATOR
1. ON-OFF key: turns on and off the instrument. When you turn the instrument on, the display will switch on about three seconds later.
2. SETUP key: allows you to enter and scroll menu. To exit, press it repeatedly until you go back to the standard screen.
3. Display. When you turn the instrument on, it shows all segments on, and then the sound pressure level (94 or 114dB) will appear in standard view.
4. Calibrator cavity for conventional ½ inch microphones.
5. Down: in standard mode, it selects 94dB and 114dB pressure levels alternately. In menu mode, it decreases the current value.
6. Up: in standard mode, it selects 94dB and 114dB pressure levels alternately. In menu mode, it increases the current value.
7. Battery lid.

Alte produse SENSECA

DATALOGGER METEO CU ACHIZITIE SI INREGISTRARE DATE DELTA OHM HD32MT.1

• 16-channel data logger capable of capturing and logging the values measured by a series of sensors connected to its inputs
• Sensors with analog voltage output, both unipolar and bipolar
• Sensors with analog current output(0..20mA, 4..20mA)
• Temperature sensors thermocouple(typpe K, J, T, N, R, S, B, E)
• Pt100/Pt1000 and NTC temperature sensors
• Sensors with digital output TTL level pulse (ON/OFF)
• Sensors with open/close contact output(e.g. rain gauges, cup anemometers

RADIOMETRU NET CU 4 COMPONENTE MASURA RADIATII SOLARE DELTA OHM LP NET14

• LP NET 14 is a 4-component net-radiometer for the measurement of the net radiation between 0.3µm and 45 µm.
• consists of two pyranometers: one for the measurement of the global radiation Esw? and the other one for the measurement of the reflected solar radiation Esw?
• pair of pyrgeometers: one for the measurement of the infrared radiation emitted by the sky EFIR? and the other one for the infrared emitted by the ground surface EFIR?
• equipped with a temperature sensor (NTC).

TERMOMETRU DE PRECIZIE PORTABIL DELTA OHM HD2107.1 HD2107.2 HD2127.1 HD2127.2

• Centesimal thermometer in the range +/-199.99°C, decimal outside this range
• one input for Pt100 probes with SICRAM module measuring range -200°C +650°C
• Storage of maximum, minimum, average value
• RS232 C output for data transfer in real time to a PC or printer
• Functions: REL, HOLD and auto power

CONDUCTIVIMETRU-TERMOMETRU DE LABORATOR CU MASURA REZISTIVITATE LICHIDE, SOLIDE DIZOLVATE TDS DELTA OHM HD2206.2

• Bench-top conductivity meter-Thermometer with back-lighted display,
• with inputs for measurements of conductivity, liquid resistivity, total dissolved solids (TDS) and the salinity by conductivity and temperature
• combined probes with 2 or 4 electrodes with direct input or with SICRAM module.
• Datalogger of conductivity or resistivity or TDS and temperature.
• RS232 C or USB 2.0 serial output for data download to a PC or printer from memory or in real time.
• Input for Pt100 or Pt1000 temperature probes provided with SICRAM module.

PIRHELIOMETRU CLASA INTAI MASURA IRADIERE DIRECTA FLUX SOLAR DELTA OHM LP PIRHE16

• The pyrheliometer LP PYRHE 16 First Class Pyrheliometer according to ISO 9060 classification
• is an instrument for direct measurement of solar irradiance (Watt/m2).
• The receiving surface must be positioned (via a solar tracker or else) perpendicularly to sun’s rays.
• By using suitable diaphragms only the direct light reaches the surface of the sensor.
• According to WMO (Seventh Edition 2008) and ISO 9069 regulations, the pyrheliometer has a field of view of 5°.

FOTO-RADIOMETRU PORTABIL CU DATALOGGER MASURA RADIATII OPTICE NECOERENTE CF DIRECTIVA EUROPEANA 2006/25/EC DELTA OHM HD2402

• portable photo-radiometer data logger for the measurement of noncoherent optical radiation
• in accordance with European Directive 2006/25/EC and the Legislative Decree No 81, April 9, 2008.
• Photometric sensor for measuring the illuminance (lux meter) in the spectralrange 380÷780 nm.
• Radiometric sensor for the UV band (220÷400 nm) with spectral weighing factor S(?).
• Radiometric sensor for UVA band (315÷400 nm).
• Radiometric sensor for the band 400÷700 nm (blue) with spectral weighing factor B (?).
• Radiometric sensor for the IR band (700÷1300 nm) with spectral weighing factor R(?).
• Thermopile sensor for the measurement of irradiance in the infrared spectral range 400÷2800 nm.

APARAT MASURA SI INREGISTRARE PARAMETRI CO, CO2, PRESIUNE ATMOSFERICA, TEMPERATURA, UMIDITATE DELTA OHM HD21AB HD21AB17

• Carbon Dioxide CO2
• Carbon Monoxide CO
• Atmospheric Pressure
• Temperature
• Relative Humidity
• Dew Point, Wet Bulb Temperature, Absolute Humidity, Mixing Ratio, Enthalpy

TERMOMETRU DIGITAL PORTABIL TERMOCUPLU K, J, T, R, N, S, B, E DELTA OHM HD2108.1 HD2108.2 HD2128.1 HD2128.2

• Thermocouple thermometer with one input and logger 32.000 samples
• For K, J, T, R, N, S, B, E type probes with miniature connector
• Storage of maximum, minimum, average value,
• USB/RS232 C connection to download loggerdata to PC.
• Functions: REL, HOLD and auto power off which can be disabled,
• IP 67 protection degree

SONOMETRU INTEGRATOR PORTABIL DE CLASA I CU ANALIZA SPECTRU OCTAVA SI STATISTICI DELTA OHM HD2010

• precision integrating portable sound level meter
• data logging functions
• performing both spectrum and statistical analysis
• maximum flexibility and simplicity
• firmware can be directly updated by the user by means of the Noise Studio program supplied with the instrument
• Class 1 sound level meter according to IEC 61672-1, 2002
• Class 1 octave and third octave filters according to IEC 61260
• Microphone complying with IEC 61094-4
• Noise monitoring and optional capture and analysis of sound events
• Octave and optional third octave band spectrum analysis from 16 Hz to 20 kHz

RADIOMETRU NET RADIATIE SOLARA ULTRAVIOLETA-INFRAROSU DELTA OHM LP NET07

• LP NET 07 measures the net radiation across a surface, from near ultraviolet to
• far infrared.
• The Net radiation is defined as the difference between the radiation that reaches the upper surface and the irradiation on the lower surface of the net radiometer.
• The surface of the upper receiver measures the direct solar radiation plus the diffuse one and the radiation at longer wavelengths emitted from the sky (clouds), while the lower receiving area measures the solar radiation reflected from the ground (albedo) and the radiation length wavelengths emitted from the earth.
• The instrument is designed and constructed to be used outdoors in any weather
• conditions.