IPU 40060 Issue 9
Page 21 of 27
3
Operating notes and precautions
3.1
Temperature measurement
The following should be noted when using the instrument as a temperature indicator:
1.
The indicated temperature value is derived from a calibration obtained when
the instrument is in a thermally stable environment. If the instrument is not
thermally stabilised, there may be an error in the indicated temperature.
Thermal stabilisation may take a few minutes – a period of 2 minutes or
longer may be necessary.
2.
The calibrated temperature output is the figure in the temperature box; the
temperature scale and display colours are indicators only.
3.
Caution should be observed in using the emissivity control – the user should
explore the effect on the observed temperature of an object when different
emissivities are selected. Figures associated with particular materials are
supplied as a guide only.
Low values of emissivity should be used only with extreme caution as large
errors in temperature readings may be obtained with only small errors in
emissivity.
4.
Only the central 12 x 12 elements should be used for temperature
measurements. The camera should be positioned so that the item of
interest appears within this area of the display.
Caution: Do not adjust the lens focus. The lens is fixed focus and factory
set.
3.2
General
The lens and associated holder is not user adjustable. The focal point of the imager has
been set at manufacture according to specification. IRISYS will not be held responsible
for any internal damage should this mount be altered. Behind the lens is the
accurately positioned chopper blade.
4
Optional Accessories
4.1
IRI 1011 Handle
The IRI 1011 Handle is for use with the IRISYS Universal Thermal Imager, allowing
easy one handed operation of the unit. The imager is attached neatly to the front of
the handle, whilst a ‘Pocket PC’ or Palm is securely fixed onto the back of the handle.
The handle is designed to accept the most commonly used ‘Pocket PC’ and Palm
models with the IRI 1011 imager.
The serial synchronization cable, which is used for connecting the imager to the ‘Pocket
PC’/Palm, can be neatly concealed within the handle grip.
4.1.1
Mounting the imager and Pocket PC onto the Handle.
The following is a step-by-step guide to mounting the IRI 1011 imager and a ‘Pocket
PC’ or Palm onto the handle: Please note that if a Palm is used the hooks and cable
cover need changing over. See section
4.1.2.
