Gossen MetraWatt METRA HIT 16I/L, Руководство по эксплуатации

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16 GMC-I Gossen-Metrawatt GmbH
13 Temperature Measurement
Temperature can be measured in °C or °F with the help of Pt 100
and Pt 1000 temperature sensors.
➭
Set the rotary switch to “
Ω
”.
➭
Connect the sensor to the multimeter measurement jacks (7).
➭
Press the multifunction key FUNC once for display in
°
C, twice for
display in
°
F, and three times for the compensation of measure-
ment cable resistance.
The instrument switches to temperature measurement and auto-
matically recognizes the sensor type (Pt 100 or Pt 1000).
The measured temperature value is displayed. The temperature
unit of measure is only displayed for
°
C.
Note!
The cable resistance for GMC-I Gossen-Metrawatt
GmbH accessory temperature sensors is automatically
taken into consideration during this measurement.
Switching to temperature measurement is disabled if
the 30
Ω
resistance measurement range has been acti-
vated!
Compensation of Sensor Cable Resistance of up to 20
Ω
Cable resistance values which differ from those of GMC-I Gossen-
Metrawatt GmbH sensor cables can be compensated for up to a
value of 20
Ω
as follows:
➭
Press the multifunction key FUNC repeatedly, until the current
cable resistance value is displayed.
The resistance value is then displayed at the LCD, which will be
used for automatic compensation after the temperature measur-
ing range has been activated.
➭
Correction resistance can be adjusted as follows:
Press the
DATA|MIN/MAX key to increase the value, or the
AUTO|MAN key to reduce the value. The value is changed by one
digit each time the key is pressed. Continuous, rapid changing
occurs if the key is pressed and held.
➭
Briefly press the multifunction key FUNC again.
The measured temperature is displayed at the LCD. The blinking
decimal point indicates that you have entered a correction value
for cable resistance. The correction value remains until the instru-
ment has been switched off.
➭
Each time the multifunction key FUNC is activated, the display
switches from
°
C, to
°
F and to the cable resistance correction
value.
The temperature measurement function can be exited by:
– pressing and holding the yellow multifunction key
FUNC , which is
acknowledged by a twice repeated acoustic signal,
– by switching the instrument off.
Note!
Use only the multimeter which will also be used for tem-
perature measurement for the determination of cable
resistance. Otherwise you cannot be certain that mea-
surement error is held within the guaranteed range.