Fluke 2180A - Manual (Page 19)

2180A
Table 2-1. Controls, Indicators and Connectors
REF NAME FUNCTION
1 Digital Display Displays a five digit readout of the measured input temperature. Leading
zero suppression and a variable position decimal point are included. A
minus sign is displayed for negative temperature measurements. Flashes
when overranged.
2 Temperature Scale Indicator Displays the temperature scale represented by the digital display data:
Or» Oc C or F.
3 Power Switch Push on/Push off.
4 SCALE Selects the temperature scale for display: °C or °F.
5 LIMIT and FUNCTION Part of the —006 Limits Option. When installed, the thumbwheels may
be set to a four digit LIMIT value (+ or —). The FUNCTION thumbwheel
can then be set to define the limit value and signal (LIMIT EXCEEDED)
when the displayed temperature has exceeded the limit value (>, <). Dis­
play will read the difference between the thumbwheel setting and the
actual temperature when ( a ) is set in FUNCTION. Set FUNCTION thumb­
wheel for storage of maximum (T ) or minimum (J_) measured since
last initializing (no limit value settings).
6 LIMIT EXCEEDED Part of the —006 Limits Option. Indicator illuminates when the preset
limits have been exceeded.
7 CALIBRATION COVER Sliding cover for calibration adjustments.
8 INITIALIZE MAX/MIN Part of the —006 Limits Option. Resets the previous maximum and
minimum readings stored by the microcomputer.
9 DIGITAL OUTPUT Connector for the ASCII coded data for the Output Unit, if 21XOA-002 is installed.
Connector for the IEEE-488 if 21X0A-004 is installed (instead of 21X0A-002).
9a ANALOG OUTPUT Banana jack connector for an Analog Output (1 mV per degree), if 21XOA-002 Is
installed. (Only used with 21X0A-002.)
10 RTD INPUT MODULE Removable module houses RTD Input connections and type selection
switch.
11 F2 External 12V dc input fuse (3/4A MDL slo-blo).
12 ACCESSORY CONNECTOR Cable connector for accessory bus connection from accessory units.
13 FI Input line power fuse 1/8A (100 or 120 VAC) 1/16A (220 or 240 VAC).
MDL (slo-blo).
14 LIMITS When the Limits Option is installed, it provides contact closure when
the set limit has been exceeded.
1b ±12 VDC Input terminals for the external 12V dc power source.
16 LINE VOLTAGE
CONNECTOR
Input connector for the input line voltage.
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