PD2-6262 Helios Large Display Analog Dual-Input Rate/Totalizer Instruction Manual
31
Programming the Rate/Totalizer (
prog
)
It is
very important
to read the following information, before proceeding to program the meter:
The meter is factory calibrated prior to shipment to read in milliamps and volts depending on the
input selection. The calibration equipment is certified to NIST standards.
Use the
Scale
menu to scale the process input (e.g. 4-20 mA). A calibrated signal source is not
needed to scale the meter.
Use the
Calibrate
menu to apply a signal from a calibrator or a flowmeter.
The
Program
menu contains the following menus:
1. Scale channel A and B without a signal source
2. Calibrate channel A and B with a calibrated signal source
3. Channel A and B total time base & conversion factors
4. Channel A and B grand total time base & conversion factors
5. Channel A and B reset modes for total & grand total
The process inputs may be calibrated or scaled to any display value within the range of the meter.
Additional parameters, not needed for most applications, are found in the
Advanced Features
menu; see
Input Calibration Method (
InCAL
)
There are two methods of calibrating (or scaling) the display for each input channel to show the correct
engineering units.
Use the
Scale
menu to enter the scaling without a signal source.
Use the
Calibrate
menu to apply a signal from a signal source.
Note: The Scale and Calibrate functions are exclusive of each other. The meter uses the last function
programmed. Only one of these methods can be employed at a time. The Scale and Calibrate functions
can use up to 32 points (default is 2). The number of points should be set in Scale and Calibrate
accordingly under the Number of Points
(
no pts
)
menu selection prior to scaling and calibration of the
meter, see page 54 for details.
