LumaSense Technologies IGA 320/23-LO - Manual (Page 16)

IGA 320/23-LO Operating Manual Controls and Connections 16
LED targeting
light beam
Minimum bending radius
Fiber Ø 0.4 mm
(blue mark)
Fiber Ø 0.2 mm
(red mark)
for short time (max. 200 °C) 150 mm 50 mm
permanent (max. 200 °C) 500 mm 120 mm
wound up (max. 50 °C) 500 mm 120 mm
Attention: A hot fiber optic cable should not be exposed to continual movement!
3.3.2 Optical head
The FSMA connector is equipped with
a screw connection that allows you to
easily attach an optical head. There is
no alignment pin at the fiber
connector – it can easily be plugged in
and fixed by turning the knurled nut.
You can exchange optical heads of the
same type without having to
recalibrate the pyrometer.
FSMA connector with
screw connection Optical head
3.4 LED targeting light
The pyrometer must be correctly aligned to the measurement object in order to obtain
an exact measurement of the object temperature. The pyrometer is equipped with
an LED targeting light that allows for simple and accurate alignment, even onto
small objects.
When measuring bigger objects where exact alignment is not absolutely
necessary, the pyrometer can be aligned using the thermal method.
In this case, the instrument simply is aligned to the highest
temperature reading.
The LED targeting light can be switched on and off by using an external contact (see 3.1.1 Pin
assignment for the connector on the back side of the pyrometer) or via PC and the
software InfraWin (see section
4.11 Settings via interface and software).
3.5 Optical head
Depending on the application, the instrument will be delivered with a small or a big optical
head.
Type (small optical head, fixed adjusted): With very small
dimensions, the optical head is suited for use in confined spaces. The
optics is adjusted ex works to one of the measuring distances
mentioned in the table in section
3.5.1 The mentioned spot size will
be achieved in exactly this distance (other distances can be realized on
request).
Type (large optical head, focusable): The optical head is
focusable, i.e. each measuring distance can be adjusted within the
mentioned limits to achieve the smallest spot size in the required