DELTA OHM – DO9847 PORTABLE MULTIFUCTION DATA-LOGGER INSTRUMENT

The DO9847 is a multifunctional handheld instrument with an inbuilt datalogger.
It is provided with a large LCD graphic display and three Independent inputs. Each input can be connected to one channel or two channel dual probes (e.g.. two thermocouples, relative humidity / temperature, pressure, mA, mV, air velocity sensors etc).

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DELTA OHM – HD8901 DIGITAL MICROPROCESSOR HYGROMETER-THERMOMETER

The HD 8901 is a portable instrument with interchangeable probes for measuring absolute and relative humidity, dew point and temperature. The humidity sensor is a condenser the dielectric of which is a hygroscopic polymer. As the dielectric constant for water is around 80, a strong variation of capacity is obtained with the variation of the humidity content of this polymer. The particular advantages of this type of sensor are good linearity, insensitivity to temperature variations, brief response time and long life. The temperature is measured by a Pt100 platinum thermoresistance (the temperature working range is limited by the working range of the humidity sensor). The sensor is flat, with a high surface/volume ratio; this allows a good response time.

The HD 8901 is easy to use, and measures:
Relative humidity
Absolute humidity
Dew point temperature
Temperature in °C and °F
Relative values
Maximum and minimum values

The heart of the instrument is a microprocessor, with the functions of the instrument including:
• AUTO-POWER-OFF: the instrument switches of automatically after about 8 minutes.
• Relative measurements.
• REC: stores the maximum and minimum value of the two inputs in all functions.
• HOLD: blocks the reading on the display, while internally the instrument continues to update the values.
• A beep sounds to indicate that a key has been activated; a beep every 30 seconds indicates that the battery is running low; also, the H symbol appears on the display.

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DELTA OHM – HD9215 DIGITAL MICROPROCESSOR THERMOMETERS FOR PROBES WITH Pt100 PLATINUM SENSOR

These are very compact portable instruments. High technological features are accompanied by pleasing design. With their range of interchangeable they are indispensable instruments for measuring temperature in the fields of maintenance, heating/air-conditioning, laboratories, food and agriculture and all sectors where temperature measurements must precise, fast and repeatable. The reading can be in °C or in °F. The calibration managed by the keyboard.

CHARACTERISTICS
• Automatic change of scale
• Instrument switches off automatically after 8 (the auto power off function may be disactivated)
• Temperature measurement with a Pt100 Platinum sensor (100at 0°C), 4-wire connection
• Probes available for measurements by immersion, surface contact and penetration (pointed), all wire connection and precision in accordance standards IEC 751/1983, BS 1904/DIN 43760/1980 in precision classes A, 1/3 DIN, request 1/5 DIN)
• Low battery charge warning light
• Battery power supply
• Calibration with storage of the calibration data memory
• LCD display with 31/2 digit, height 8 mm
• The total precision of the instrument plus the chosen measuring probe is given by the sum instrument error plus the error of the chosen probe depending on whether the probe is class DIN or 1/5 DIN. The ohmic there and back resistance of the of the probe is 0,40
• Instrument working range: -5°C...+50°C
• Storage temperature: -20°C...+60°C
• Relative humidity: 0...90% R.H.
• Number of conversions: 1 per second
• Power supply: 9V battery, IEC 6LF22, zinc/carbon battery life approx. 200 hours
• Low battery charge warning light
• Instrument connector: male 8-pole circular connector DIN 45326
• Case: ABS Bayer NOVODUR, grey 7553CF
• Dimensions: instrument 42x185x23 mm weight 130 grams
• Kit 370x140x60 mm - weight 500 grams.

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MIKRON - M300 Series BLACKBODY RADIATION CALIBRATION SOURCES

Mikron has been designing and building blackbody calibration sources since 1970. These precision instruments have been installed in several national standards institutions, and are used across industry and research for the calibration of infrared thermometers, radiometers, heat flux meters, thermal imaging systems and spectrographic analyzers. Our parallel manufacture of infrared thermometers, and the application of these instruments and thermal imaging systems
has contributed much to Mikron’s knowledge and expertise in the field of infrared, radiometric measurement.

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