Martel Electronics DMC1410 - Manual (Page 9)

The display of the calibrator, shown in Figure 3, is divided into three
main sections: the upper display, the lower display, and the menu bar.
The upper display is used for measuring dc voltage, dc current with
and without loop power, and pressure.
The lower display can be used for both measuring and sourcing.
The menu bar is used to setup both the upper and the lower display
to perform the desired function.
Table 3 explains the different parts of the display:
Table 3: Display Functions
No. Name Description
1 Primary Parameters Determine what parameter is going to be
measured or sourced. The available options
for the upper display are:VOLTS IN,
PRESSURE, mA IN, and mA LOOP. The
available options for the lower display
are:VOLTS, TC (thermocouple), RTD, FREQ
(frequency), PULSE, PRESSURE, mA, and
mA 2W SIM.
2 Input/Output control Switches the lower display between input
mode (read), and output mode (source).
3 Additional Settings Available only for TC (thermocouple), and
RTD measurements. For TC this setting
turns the CJC (Cold Junction Connection)
on and off. For RTD measure [RTD IN], this
setting sets the number of wires used in the
measurement (2-wire, 3-wire, or 4-wire)
4 Span Indicator Available only for mA and mA LOOP. Shows
where in the preset span the measured
value falls. Fixed for mA at 4 (0%) and 20
(100%).
5 Units Shows what unit the measurement or
source value is in. Available options are for
RTD and TC (°C or °F), and for FREQ and
PULSE (CPM, Hz, or KHz)
6 Sensor Types Allow for measurements to be made for dif-
ferent types of RTDs and TCs. All types are
shown in the Specifications. Also, displays
the amplitude of the pulse and frequency
source, and pressure units.
7 Numeric Displays Display the numeric values of the signal
being measured, or sourced. An "OL" read-
ing indicates an out of range or overload
condition.
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