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

DETECTOR DE PLOAIE SI PRECIPITATII ATMOSFERICE DELTA OHM HD2013.2

• rain detector based on the capacity principle
• The instrument is equipped with three different outputs: a "Rain ON/OFF" output
• detects whether it is raining/ snowing (ON) or not (OFF), also used to control a relay coil or similar devices
• can be used either as a separate device, or connected to a data logger system

TESTER LABORATOR PARAMETRI ELECTROCHIMIE: PH, CONDUCTIVITATE, OXIGEN DIZOLVAT, REZISTIVITATE LICHIDE, SOLIDE DIZOLVATE, CONCENTRATIE DELTA OHM HD22569.2

• bench top instrument for electrochemical measures: pH, conductivity, dissolved oxygen, and temperature.
• It is are fitted with a large backlighted LCD display.
• pH, mV, redox potential (ORP) with pH, redox electrodes or electrodes with separate reference;
• conductivity, resistivity in liquids,
• total dissolved solids (TDS) and salinity with combined 4-ring and 2-ring conductivity/
• temperature probes with direct input or SICRAM module;
• concentration of dissolved oxygen in liquids (in mg/l) and saturation index (in %),

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.

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

TESTER MONITORIZARE SI ANALIZA CALITATE AER INTERIOR, MONOXID, BIOXID DE CARBON DELTA OHM HD37AB1347

• Datalogger for indoor air quality analysis (IAQ)
• measures: airspeed, temperature, relative humidity, atmospheric pressure, CO2 (Carbon Dioxide) and CO (Carbon Monoxide)
• Memory capacity of 67,600 records for each of the two inputs.
• Logging interval from 15 seconds to 1 hour.

TURBIDIMETRU PORTABIL DE LABORATOR TESTARE LICHIDE PROCES, APA POTABILA, APE UZATE DELTA OHM HD25.2

• Portable and bench turbidity meter equipped with 3 photodetectors and two light sources
• it measures according to the standard EPA 180.1, ISO-NEPH (ISO 7027), EBC and ASBC.
• Automatic calibration,
• datalogger,
• data downloading to PC by RS232C or USB 2.0 through the software DeltaLog11

PIRANOMETRU CU TERMOPILA MASURA RADIATIE SOLARA INCIDENTA GLOBALA DELTA OHM LP PYRA02 PYRA03 PYRA12

• First class pyranometer according to ISO 9060.
• Complete with: shade disk, sachet with silica-gel crystals, 2 cartridges, levelling device and calibration report.
• On request 5 or 10m cables with connectors

MINI-DATALOGGER TEMPERATURA SI UMIDITATE RELATIVA DELTA OHM HD206 HD226 HD207 HD227

• TEMPERATURE and RELATIVE HUMIDITY mini data logger with/no display
• Selectable storage interval 1-5-10-15-30 sec/min, 1 hour.
• Storage of 120,000 reading per channel,
• 8mm 3 ½ digit LCD display.
• IP54 protection degree.

LUXMETRU FOTO-RADIOMETRU MASURA ILUMINANTA, PAR, IRADIANTA SOLARA DELTA OHM HD2102.1 HD2102.2

• Device for measuring illuminance, luminance, PAR, irradiance.
• Storage of maximum, minimum, average value and the integral Q(t),
• RS232 C 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-TERMOMETRU DE LABORATOR CU MASURA PH, MV, POTENTIAL REDOX ORP DELTA OHM HD2205.2

• Bench-top pHmeter-Thermometer with back-lighted display,
• with two BNC inputs, to
• measure pH, mV, ORP with pH, redox, separated reference electrodes,
• one input for a pH/temperature combined probe provided with SICRAM module.
• Datalogger of pH, mV, 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