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

CONDUCTIVIMETRU-TERMOMETRU MASURA CONDUCTIVITATE, REZISTIVITATE LICHIDE, SOLIDE DIZOLVATE, SALINITATE, TEMPERATURA DELTA OHM HD2306.0

• Conductivity-Thermometer measures conductivity, liquid resistivity, total dissolved solids, salinity and temperature.
• Storage of maximum, minimum, average value.
• Functions: REL, HOLD and auto power off which can be disabled,
• IP 67 protection degree.

ANEMOMETRU-TERMOMETRU DIGITAL DELTA OHM HD2103.1 HD2103.2

• Anemometer-Thermometer for air speed measurement which use hot-wire or vane probes, for temperature Pt100 sensor with SICRAM module.
• Datalogger which stores the maximum, minimum, average value and can store up to 38,000 samples.
• RS232C/USB output for data transfer in real time to a PC or printer.
• Functions: REL, HOLD and auto power off which can be disabled,
• IP67 protection degree.

TESTER OXIGEN DIZOLVAT SI TERMOMETRU CU DATALOGGING DELTA OHM HD2109.1 HD2109.2

• Oxygen meter-Thermometer measures dissolved oxygen, saturation index and temperature.
• Datalogger which stores the maximum, minimum, average value and can store up to 18,000 samples.
• RS232 C/ USB output for data transfer in real time to a PC or printer.
• Functions: REL, HOLD and auto power off which can be disabled,
• IP 67 protection degree.

PH-METRU-CONDUCTIVIMETRU-TERMOMETRU DE LABORATOR DELTA OHM HD2256.2

• Bench-top pHmeter-Conductivity meter-Thermometer with back-lighted display,
• to measure pH, mV, ORP by pH, redox, separated reference electrodes, one input for a pH/temperature combined probe,
• it measures conductivity, liquid resistivity, total dissolved solids (TDS) and salinity by combined conductivity and temperature probes with
• 2 or 4 electrodes with direct input or with SICRAM module.
• Datalogger for pH or mV, conductivity or resistivity or TDS and temperature.
• RS232 C serial output or USB 2.0 for data download to a PC or printer from memory or in real time.

CONDUCTIVIMETRU-TERMOMETRU MASURA CONDUCTIVITATE, REZISTIVITATE LICHIDE, SOLIDE DIZOLVATE, SALINITATE, TEMPERATURA DELTA OHM HD2106.1 HD2106.2

• Conductivity-Thermometer measures conductivity, liquid resistivity, total dissolved solids, salinity and temperature.
• Datalogger which can store the maximum, minimum, average value and can store up to 36,000 samples.
• RS232 C/ USB output for data transfer in real time to a PC or printer.
• Functions: REL, HOLD and auto power off which can be disabled,
• IP 67 protection degree.

ANEMOMETRU ULTRASONIC MASURA VITEZA SI DIRECTIE VANT DOUA AXE DELTA OHM HD52.3

• 2 axes ultrasonic Anemometers series HD 52.3D
• Wind speed and direction, U-V Cartesian components of wind speed,
• Relative Humidity and Temperature (option, code "17"),
• Diffuse Solar Radiation (option, code "P"),
• Barometric pressure (option, code "4").

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

TERMO-HIGROMETRU PORTABIL DELTA OHM HD2301.0

• Thermo hygrometer, instrument measuring range for temperature -200°C +650°C with probe TP47...
• humidity 0.0...100.0%RH
• Storage of maximum, minimum, average value.
• Functions: REL, HOLD and auto power off which can be disabled
• IP 67 protection degree

SURSA SUNET CU GENERARE SEMNAL AUDIO PENTRU CALIBRARI NIVEL ACUSTIC CLASA I/II DELTA OHM HD9101 HD9102

• generator noise level 9101/HD HD 9102
• portable, battery-powered sound source,
• suitable for calibration of sound level meters (portable and laboratory) and acoustic measuring stations
• possible to calibrate directly microphones 1 / 2 "of mechanical dimensions conform to the requirements of IEC 61094-1
• the frequency of the sound signal at 1000Hz can perform calibration of sound level meters with any frequency weighting
• sound pressure level generated is independent of atmospheric pressure
• Ease of use allows the use even by unskilled personnel.

MANOMETRU TERMOMETRU DIGITAL PORTABIL DELTA OHM HD2304.0

• Manometer-Thermometer with one input for SICRAM module PP471 to connect probes TP704 and TP705 series
• Temperature measurement with Pt100 probe complete with SICRAM module, measuring range 200°C +650°C.
• Storage of maximum, minimum, average value.
• Functions: REL, HOLD and auto power off which can be disabled,
• IP 67 protection degree.