Extension of accreditation SIT CENTRE No. 124 Delta Ohm

On 02/07/2003 Delta Ohm SIT Centre n.124 has been accredited in RELATIVE HUMIDITY and DEW POINT.

Uncertainties with which the Sit Centre was approved:

MAGNITUDE	INSTRUMENTS TO BE CALIBRATED	MEASURING RANGE	UNCERTAINTY(*)
relative humidity	Electric and mechanical hygrometers and thermohygrometers Electric psychrometers	from 10%RH to 92%RH (at air temperature from 0° to 60°C) from 10%RH to 92%RH (at air temperature from 0° to 60°C)	from 0.5%RH. a 1.8%RH from 0.5%RH. a 1.8%RH
relative humidity	Saturated salt solutions	from 10%RH to 90%RH (at air temperature from 20° to 25°C)	1.4%RH
dew point	Condensing mirror hygrometers	from -20°C to 60°C	0.16°C

Then the SIT Centre n.124 is now accredited in the following quantities:
TEMPERATURE - RELATIVE HUMIDITY - PRESSURE - PHOTO/RADIOMETRY - ACOUSTICS

The following new instruments and also the relevant data sheets are now available by mail or by visiting our web-site:

• HD2003 - HD2003.1 Ultrasonic anemometers for weather stations.
  The HD2003 can measure the relative humidity, the temperature of the air and the barometric pressure further to the speed and direction of wind. While the HD2003.1 measures only the speed and direction of wind. Both the models are fitted with serial output RS232 or RS485 and analogue output. On request both the models can be provided with heating system of sonic transducers.
• HD2013.2 2 Rain detector which can be used for weather stations but also as closing regulator of windows, sun curtains and greenhouses.
• DO2003: portable datalogger for measuring and storing the following quantities: temperature, relative humidity, air speed by vane probes, hot-wire probes, Pitot tube probes, barometric pressure and differential pressure up to 2 bar. This instrument can be fitted with a wide range of probes.
• " The new sound level meter with graphic display HD2110is now available.This instrument is provided with a lot of functions such as simultaneous measurement of five parameters, graphic display of parameters, octave and third of octave filters, real time isophonic lines. Software DeltaLog 5 allows the downloading and PC data management.
• " Quanto-Photo-Radiometer HD9021 HD9021 is now provided with a new probe for measuring irradiance effective according to the UV action curve (erythema curve CEI EN 60335-2-57).
  

The range of the quantities which can be measured by the multifunction instrument DO9847K has been increased with new probes; up to now this instrument could measure temperature, relative humidity, voltage or current, solar radiation, but now also the following quantities: pressure, air speed with hot wire probes or van with 100mm diameter or Pitot tube with or without thermocouple for temperature compensation, photometric and radiometric quantities.