Ecom Instruments MCAL 4200 Instruction Manual page 54

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:
No. Name
1 Primary Parameters
2 Input / Output control
3 Additional Settings
4 Span Indicator
5 Units
6 Sensor Types
7 Numeric Displays
Table 3: Display Functions
Description
Determine what parameter is going to be measu-
red 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 (frequen-
cy), PULSE, PRESSURE, mA, and mA 2W SIM.
Switches the lower display between input mode
(read), and output mode (source).
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)
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%).
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)
Allow for measurements to be made for different
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.
Display the numeric values of the signal being
measured, or sourced. An "OL" reading indicates
an out of range or overload condition.
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