Hioki HiTester 3443-01, Инструкция по эксплуатации

Страница: 29 / 46

17
―――――――――――――――――――――――――――
Chapter 3 Making Measurements
――――――――――――――――――――――――
NOTE
Sighting pitch
Target size
Distance
distance 1
'
8
"
0.5 m
3
'
3
"
1 m
4
'
12
"
1.5 m
6
'
7
"
2 m
Target
size
0.79
"
φ20 mm
0.95
"
φ24 mm
1.89
"
φ48mm
3.15
"
φ80 mm
Sighting
pitch
1.34
"
34 mm
1.61
"
41 mm
1.89
"
48 mm
2.17
"
55 mm
3.2 Target Size and Sighting
･
Although the field of measurement and the sighting
almost coincide, actually the field of measurement
corresponds to the diameter for 90% optical
response. The object whose temperature is to be
measured needs to be larger than the measurement
diameter by an adequate margin
‐
at least 1.5 to 2
times larger.
･
The sighting beam must encompass the area to be
measured up to the max. measurement distance of 4-
ft. 12-in. (1.5 meters).
･
Even if the measurement distance is greater than 6-
ft. 7-in. (2 meters), temperature is displayed as a
mean value of the target size if there is no substance
to absorb or interrupt the infrared ray from the
object being measured.