Optex THERMO-HUNTER VF-3000, Instruction Manual

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INST No.INE-459-0P2CE Ver. 1.11
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5.4 Emissivity rate setting
This is for the setting of a correct emissivity rate of an object measured. Principally, when you measure the
object with the single color type, set the emissivity rate if you have already known its value.
• Press
MEAS
key for about 1 second to turn on the power supply and then release
MEAS
key.
The status marker "
HOLD
" will light.
• In the hold mode, press
SEL
key several times to enter the emissivity rate setting mode "
ε
" ("
ε
r
" for
2-color type) in the sub marker. (Ref: [3.6 Markers]).
• By pressing either
△
or
▽
key, the least significant
digit of 4-digit numerical figure will blink to set it.
• Set the desired figure by pressing △ or ▽ key.
• Press
ENT
key. The blinking will stop and the blinking
digit will shift to the next higher digit.
• Repeat the above procedure up to the most significant digit for setting the emissivity rate (4 digits).
• By pressing
ENT
key at the most significant digit, the setting of emissivity rate will be completed.
5.5 Measurement mode selections
(This paragraph explains the items highlighted.)
Measurement modes are shown in the list below. By referring to the list, select the desired modes.
Settings/Mode selections Sub display Setting range Initial Paragraph
Low temperature alarm setting AL oFF, 400 to 3000ºC/752 to 5432ºF oFF 5.6.1
High temperature alarm setting AH oFF, 400 to 3000ºC/752 to 5432ºF oFF 5.6.2
Signal modulation mode selection modu dELy, PEAk dELy 5.5.1
Modulation value setting
tAu
dEc 0.0, 0.2, 0.5, 1.0 (second)
0, 2, 5, 10ºC (ºF)/second 0.0s
0ºC/s
5.6.3
Measuring unit selection Unit C (ºC), F (ºF) C (ºC) 5.5.2
2-color/single color selection CoLr 2, 1 2 5.5.3
• Press
MEAS
key for about 1 second to turn on the power supply
and then release
MEAS
key. The status marker "
HOLD
" will light.
• Press
SEL
key for about 2 seconds in the hold mode to move to the
setting mode. A setting value will be displayed in the main display
and its mode will be displayed in the sub display.
• Press
SEL
key for selecting a mode. (Ref: [8.4 System settings]
• For the selecting procedure of the above modes, refer from [5.6.1
Low temperature time constant setting] to [5.6.3 Modulation value
setting].
5. Measuring
*
Make sure to press any keys until you hear an audible beep.
Tb CONT MEM PEAK
MEAS HOLD AL AH
C
F
MAX AVE ε
r
MIN TC NO
Status
marker
Sub
marker
Main
marker
Sub
display
Main
display
• The setting range is
0.100 to 1.900
. (0.001 increment) The initial is "
1.000"
. R e m a r k s
• The emissivity rate setting is disabled in the data storage mode (when the " " mark
under the main marker "
MEM
" lights). For canceling the data storage mode, press
MEM
key. The " " mark under the main marker "
MEM
" will go off.
Caution
• When an emissivity rate is unknown, adjust the emissivity rate to get the same
temperature value as the value measured by a thermocouple.
[Example]
Measured value by the thermometer > Measured value by a thermocouple
⇒
Increase the emissivity rate
Measured value by the thermometer < Measured value by a thermocouple
⇒
Decrease the emissivity rate
Reference
• If
SEL
key is pressed for 2 seconds in the setting mode or if any key is not pressed for
1 minute, the thermometer will return to the measurement mode.
R e m a r k s
Sub display Display of [its item]
«
Setting mode screen »
Main display Display of [parameter]
Tb CONT MEM PEAK
MEAS HOLD AL AH
C
F
MAX AVE ε
r
MIN NO