Keller ITS CellaPort PT 120, Operating Manual, Page: 19 / 72

Operating manual PT 11x, 12x,13x
13
During normal operating mode, emissivity can be set at the pyrometer
using the ▲▼ buttons. When simultaneously pressing the MODE key,
the display shows the current measuring temperature while the emissivi-
ty coefficient continues to be adjusted in the background. This is an easy
way to determine the emissivity when the object temperature is known.
The modified values are directly adopted.
11 Initializing material constants
The CellaPort lets you store up to 10 emissivity factors. Before you per-
form a new measurement, simply use the
▲▼
control keys to select your
preconfigured emissivity factor. When you select a stored emissivity fac-
tor, the display will briefly show the preconfigured factor for that emissivi-
ty factor.
11.1 Define number of material constants in array
Before you configure the pyrometer with emissivity factors, you must de-
fine the size/length of the array. This is the number of material constants
you would like the array to contain (10 maximum). Using parameter
E.TB.1
, enter the total number.
Temperature measurement (Configuration layer: C001)
Parameter Function Explanation
E.TB.1
Enter desired number
of elements in array
If
E.TB.1
=
OFF,
then use
▲▼
keys to manually set emis-
sivity
11.1.1 Store and assign material constants
Next, assign a value to each material constant in the index (
E. 01
,
E.
02,
etc.).
Temperature measurement (Configuration layer:
C001
)
Parameter Function Explanation
E. 01
Emissivity
Memory position 1
z. B. 75 %
E. 02
Emissivity
Memory position 2
z. B. 60 %
E. 03
Emissivity
Memory position 3
z. B. 50 %
Once you have configured the emissivity parameter, the
pyrometer will maintain this specific setting. The pyrome-
ter will always operate with this value unless you change
the setting.