26. additional features, Additional features -5, 24. operating directions – Fluke 2180A User Manual
Page 21
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2180A
2-25. Operate the 2180A Thermometer using the
following procedure:
1.
Verify the instrument has the correct RTD
connected.
2.
Connect the input line cord to the applicable
power source.
3.
Select the temperature scale desired for display
by pressing the Front Panel SCALE switch (in for
°C, and out for °F).
4.
Set POWER switch to ON.
2-24. OPERATING DIRECTIONS
2-26. Additional Features
2-27. The following paragraphs describe how the 2180A
may be used to measure voltage or resistance. In both
cases, the RTD will be replaced with a length of standard
electrical wire. To connect the standard wire to the RTD
Input Module, use steps 1-3 of the RTD Installation
procedure, ignoring all reference to the RTD.
2-28. HOW TO MEASURE VOLTAGE
2-29. The 2180A can be used to measure positive
voltages only up to +100 mV or +1V maximum in two
ranges, with 1 )uV or 10 /zV resolution respectively. To
obtain the desired range, refer to the following steps and
Figure 2-3.
4-WIRE CONNECTIONS
+V
+S
-V
-S
3-WIRE CONNECTIONS
+V
+S
-V
-s
2-WIRE CONNECTIONS
+V
+S
-V
-S
Figure 2-2. RTD Connections
Table 2-2. RTD Input Module Switch Settings
TYPE
pP
DISPLAY
READING
AT TURN
ON
RTD SELECTOR SWITCH (SI) SETTINGS
0
1
2
3
4
5
6
7
8
9
2
8002.2
100*
385**
100*
390**
100*
3916**
100*
392**
100*
N1
10*
cu
—
—
OHM
CAL
* = OHMS
** = PLATINUM
EXAMPLE: To select a switch setting of 5, position the RTD selector switch (1) as shown:
12
4
8
□
[zz:
1+4 + 5
2-5