Idiomas disponibles
Idiomas disponibles
Dry-well temperature calibrator / English
2. Introduction
The serious dry-block heat sources allow users to check the accuracy of the
thermometers and sensors as a system, on site, without the need for heavy,
expensive equipment. The dryblocks are high accuracy, protable heat sources that
are extremely easy to use. Simply plug in, swith on and set the dry-block to the
temperature that you wish to test, insert your probe into the correct size well and
record the reading of your thermometer and probe to the displayed temerature
of the dry-block and the differentce is the error of your instrument. For optimun
accuracy and UKAS traceability use a reference thermometer to make comparison
measurements.
The serious dry-blocks are controlled by a closed loop microprocessor based digital
PID temperature controller system incorporating a heater and precision platinum
RTD sensor housed in the aluminium block. Fan cooling allows rapid changes in
block 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 certification of calibration showing actual
test data, which can be used as part of quality assurance programmes.
3. General Specifications
Temperature Range
+33 to 300°C(at 20°C ambient)
Accuracy
0.8°C ; Temp 100°C
(±1.6°F Temp 212°F)
±1.6°C 100°C Temp 200°C
(±3.2°F 212°F Temp 392°F)
±2.8°C 200°C Temp 300°C
(±5.6°F 392°F Temp 572°F)
Stability
±0.1°C Temp 100°C
(±0.2°F Temp 212°F)
±0.2°C 100°C Temp 200°C
(±0.4°F 212°F Temp 392°F)
±0.4°C 200°C Temp 300°C
(±0.8°F 392°F Temp 572°F)
Resolution
0.1°C 0.1°F
Heating Time
30 minutes to max
30 minutes to 100°C(122°F)
Cooling Time
4.2mm
Aperture Diameter
220VAC(±10 ) 1.25A 110VAC(±10 ) 2.5A
Power
180 114 233mm
Size
3kg
Weight
2
6.8mm
5mm
3.5mm
4. Environmental Conditions
Although the instrument has been designed for optimum durability and trouble-free
operation, it must be handled with caution. The instrument should not be operated
in an excessively dusty or dirty environment. Maintenance and cleaning
recommendations can be found in the Maintenance section of this manual.
The instrument operates safely under the following conditions:
temperature range: 5-35°C (41-95°F)
ambient relative humidity: 15-80%
pressure: 75kPa–106kPa
mains voltage within ±10% of nominal
vibrations in the calibration environment should be minimized
5. Quick Start
5.1 Unpacking
Unpack the calibrator carefully and inspect twhether any damage that may have
occurred during shipment. If there is shipping damage, notify the carrier immediately.
Verify that the following components are present:
BX150 dry-block heat sources
Power Cord
User's Guide
5.2 Set Up
Place the calibrator on a flat surface with at least 8 inches of free space around
the instrument. The prop may be swung down to raise the front of the instrument
from a horizontal position. Plug the power cord into a grounded mains outlet
(Note: this calibrator has two power specification of one model NO: 220V/AC and
110V/AC, please make sure whether the power value is suitable for the instrument
before operation.)
Turn on the power to the calibrator by toggling the power switch on. The fan
should begin quietly blowing air through the instrument and the controller display
should illuminate after 3 seconds. After a brief self-test the controller should begin
normal working. If the unit fails to work please check the power connection.
The heater will start operating to bring the temperature of the calibrator to the
set-point temperature and the display will begin to show the actual target
temperature.
Dry-well temperature calibrator / English
3
