4
INTRODUCTION
The 3101 dry-well heat source allows users to check the accuracy of
thermometers and sensors as a system, on site, without the need for
heavy, expensive equipment. The dry-well is a high accuracy portable
heat source that is extremely easy to use. Simply plug in, switch on and
set the dry-well to the temperature that you wish to check, insert your
probe into the correct size well and take the reading. Compare the
temperature reading of your thermometer and probe to the displayed
temperature of the dry-well and the difference is the error of your
instrument. For optimum accuracy and UKAS traceability use an ETI
Reference Thermometer or similar to make comparison measurements.
The 3101 dry-well is controlled by a closed loop microprocessor based
digital PID temperature controller system incorporating a combination
heater/cooler and a precision platinum RTD sensor housed in the
aluminium block. Fan cooling allows rapid changes in well temperature
upon demand. The required temperature may be adjusted in 0.1 °C
increments across the range of the instrument using the buttons on the
front panel.
These units are ideal for use in a variety of industrial and process
applications. Each unit is supplied with a traceable certificate of
calibration showing actual test data, which can be used as part of quality
assurance programmes.
SAFETY
Operate the dry-well in an ambient temperature between 10 and 30 °C
(15 to 25 °C for optimum accuracy) and humidity between 5 to 95 %
(non condensing). The fan runs continuously to moderate the internal
unit temperature. Always ensure the air vents and fan aperture are clear
and have at least 150 mm of space between them and any obstructions.
NEVER
cover the unit while in operation or operate if the fan stops. If
the equipment is used in a manner not specified by the manufacturer,
the protection by the equipment may be impaired.
!
The calibrator can operate at very high temperatures. Precautions
MUST be taken to prevent personal injury or damage to
surrounding objects. Probes may be hot when removed from the unit and
should be placed on a heat resistant surface. The unit may remain hot for
Содержание 271-401
Страница 1: ...3101 Dry Well heat cool source calibrator User Manual order code 271 401...
Страница 2: ...2...
