Monarch Instrument DC 2000 - Manual (Page 79)

Page 5-13
Chapter 5 Programming
Programming Input Scale - Use the UP (
↑) or DOWN (↓) Arrow Keys to highlight “Input scale”. Press
ENTER and the display reads “lo ÎXXXXXXXXXXXXXÍ” (13 places possible). Use the numeric keypad to
enter the low end scale value, the default is zero. Press ENTER when the desired Lo Scale value is
displayed and the display reads “hi
ÎXXXXXXXXXXXXXÍ”. Use the numeric keypad to enter the high end
scale value, the default is the full scale value of the range selected. Press ENTER when the desired Hi
Scale value is displayed and the display will return to the “Input scale” Menu item.
5.6.5.3 Output Scale
All linear current and voltage inputs must be assigned low and high output scale endpoints. The output
scale is used to linearly map the input range (set with the Input scale option) to an Output range set with
the Output Scale option. For example, if a transducer has a 1 volt output equivalent to 5000 PSI, use the
1.25V input range with an Input Range setting of 0 to 1.00 V and program the Output Range to be 0 to 5000.
The actual readings on the display will now be in PSI.
Programming Output Scale - Use the UP (
↑) or DOWN (↓) Arrow Keys to scroll through the menu items
in the Point Setup Menu and highlight “Output scale”. Press ENTER and the display reads “places? X”.
Use the UP (
↑) or DOWN (↓) Arrow Keys to scroll through the menu items to set the number of decimal
places (up to a maximum of 4 - NOTE 5 = E notation) and press ENTER. The display will read
“lo
ÎXXXXXXXXXXXXXÍ” (13 places possible). Use the numeric keypad to enter the low end scale value,
the default is zero. Press ENTER when the desired Lo Scale value is displayed and the display reads
“hi
ÎXXXXXXXXXXXXXÍ”. Use the numeric keypad to enter the high end scale value, the default is the full
scale value of the range selected, which is a direct linear mapping or a scaling of 1. Press ENTER when
the desired Hi Scale value is displayed and the display will return to the “Output scale” Menu item.
5.6.5.4 Decimal Fix
Certain points must be assigned a decimal place of up to four places or scientific notation. The choices
are:
0 = X (no decimal places)
1 = X.X
2 = X.XX
3 = X.XXX
4 = X.XXXX
5 = Scientific Notation (Decimal places affect displayed point data values only)
Programming Decimal Fix - Use the UP (
↑) or DOWN (↓) Arrow Keys to scroll through the menu items
in the Point Setup Menu until “Decimal fix” appears. Press ENTER and the display reads “places? X”. Use
the UP (
↑) or DOWN (↓) Arrow Keys to select the desired number of decimal points required. When the
desired Decimal Fix is displayed, press ENTER to invoke. The display returns to “Decimal fix” in the Point
Setup Menu.
NOTE: Thermocouple (T/C) points must be assigned a decimal place of either 1 or 0. This enables
temperature to be displayed with a resolution on either 1 degree (0) or 0.1 degree (1).
5.6.5.5 Exc. Currents
Currents are used to measure a resistance input on the back of the Recorder. If a resistance other than an
RTD is plugged into an input, Exc. Currents must be enabled. The current is typically 1.00mA. The
procedure to enable or disable currents follows.
Enabling or Disabling Currents - Use the UP ( ↑) or DOWN (↓) Arrow Keys to scroll through the menu
items in the Point Setup Menu and highlight “Currents”. Press ENTER and the display reads either
“currents=NO” or “currents=YES”. Use the YES or NO Key to change the display to the desired state of
Currents. When the desired Currents state is displayed, press ENTER to invoke and the display returns to
“Currents” in the Point Setup Menu.