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

PLUVIOMETRU MASURA CANTITATE SI DEBIT CADERI PRECIPITATII ATMOSFERICE PLOAIE DELTA OHM HD2013

• Rain gauge with tipping bucket,
• area 400cm2,
• for temperature range +4°C... +60°C.
• Standard resolution 0.2.
• On request at the time of placing the order resolution 0.1 or 0.5mm.
• Output contact normally closed.

DATALOGGER MULTIFUNCTIONAL CU ANALIZA MICROCLIMA DELTA OHM HD32.1

• Globe temperature
• Natural wet bulb temperature
• Ambient temperature
• Atmospheric pressure
• Relative Humidity
• Air velocity
• Air temperature at the height of the head...

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.

PIRANOMETRU CU FOTODIODA SILICONICA MASURA RADIATIE SOLARA GLOBALA PANOURI FOTOVOLTAICE DELTA OHM LP SILICON-PYRA04

• LP Silicon-PYRA 04. pyranometer
• measures the global solar radiation (W/m2) by using a silicon photodiode (400nm-1100nm).
• special geometry and the diffuser allow to have a pyranometer field of view of 180 degrees according to cosine law.
• The pyranometer is suitable for the measurement of natural sunlight.

DATALOGGER ANALIZOR MICRO-CLIMA WBGT PMV PPD DELTA OHM HD32.3 HD32.3A

• Analysis of hot environments using WBGT index
• Analysis of the moderate warm environments using PMV index and PPD index
• Logging
• Start and stop can be set automatically with the auto-start function
• Selectable measurement unit of the temperature: °C, °F, °K.
• Date and time of the instrument.

ANALIZOR VIBRATII 3-CANALE PROTECTIE VIBRATII MECANICE LA LOCUL DE MUNCA DELTA OHM HD2070

• portable vibration analyzer performing spectral and statistical analysis on three channels simultaneously
• measures all parameters required by current regulations concerning workers protection from vibration related risks
• measure vibrations transmitted to both hand-arm and whole body
• simplicity of use with maximum flexibility
• possibility of updating the instrument according to the evolution of the regulations relating to vibration measurement
• Octave and third octave filters, available as option (HD2070.O1), satisfy class 1 specifications of IEC 61260 standard

ANEMOMETRU ULTRASONIC MASURA VITEZA SI DIRECTIE VANT TREI AXE DELTA OHM HD2003 HD2003.1

• Determination of the anemometric quantities represented in diverse measurement units:
• wind speed and direction,
• U-V-W Cartesian components of speed,
• sound speed,
• sonic temperature
• 5 analogue voltage or current outputs, with different measuring ranges.
• RS232 and Multidrop RS485 Serial Communication interfaces.

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.

TESTER LABORATOR PARAMETRI ELECTROCHIMICI OXIGEN DIZOLVAT CONCENTRATIE INDEX SATURATIE DELTA OHM HD3409.2

• Bench-top Oxymeter-Thermometer measures dissolved oxygen,
• saturation index by polarographic type combined probes,
• temperature by Pt100 probes with SICRAM module.
• Datalogger which stores maximum, minimum, average value.
• RS232 C serial output or USB 2.0 for data download to a PC or printer from memory or in real time.
• Functions: REL, HOLD, auto power off which can be disabled,
• protection degree IP 66

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.