Dranetz DranTech Xtra, Руководство пользователя

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38
DranTech X
TRA
User’s Guide
V/Hz,
Ω
, Temperature, and A/Hz Measurements
5.5.2 Measurement with Resistance Thermometers
∞
Set the rotary switch to “Temp
TC
” or “Temp
RTD
”.
The last selected temperature measurement or sensor, i.e. type K or
Pt100/Pt1000, remains in memory and is accordingly displayed. Press
the
FUNC | ENTER key in order to change to the other measuring
function if required. The sensor type, i.e. Pt100 or Pt1000, is detected
automatically and displayed.
There are two different ways to compensate for cable resistance:
Automatic Compensation
∞
Press the ZERO | ESC key.
“Short leads” appears at the display.
If you prefer to enter cable resistance directly, you can skip the follow-
ing entry prompt.
∞
Short circuit the measuring instrument’s connector cables. “000.00 ”
appears at the display. After pressing the
FUNC | ENTER key, au-
tomatic compensation of cable resistance is activated for all subse-
quent measurements. The short-circuit can now be eliminated, and
the device is ready for use.
Entering Cable Resistance
∞
Press the ZERO | ESC key once again in the automatic compensa-
tion menu.
∞
Enter the known resistance of the connector cables with the scroll
keys: Select the digit to be changed with the
Y Z
keys, and change
the respectively selected digit with the
VU
keys. The default value
is 0.1
Ω
. Values can be selected within a range of 0 to 50
Ω
.
∞
Upon pressing the FUNC | ENTER key, the selected value is activated and
the display is returned to the measuring function. Cable resistance remains
in memory even after the instrument has been switched off.
COM
V
Temp
Ω
Temp
TC
0023.3
°Χ
Temp
RTD
Type K
0025.6
°Χ
Pt1000
TC
RTD
000.00
Ω
SHort LEAdS
R L
000.50
Ω
R L
Enter Cable Resistance
Automatic
RTD
Compensation
Measuring Ranges
RTD Pt100 –200.0
…
+850.0
°
C
RTD Pt1000 –150.0
…
+850.0
°
C
FUNC
ENTER
FUNC
ENTER
ZERO
ESC
ZERO
ESC
FUNC
ENTER