OTC 4292 Manual Del Usuario página 6

Digital hydraulic readouts are pre-programmed with the calibration number (PPL) as follows:
INTERNAL meter factor to suit the OTC 4291 100 gpm Flowblock Loading Valve. EXTERNAL
meter has a standard calibration number and the actual calibration number from the flow
meter must be loaded into the unit.
To program these values follow the procedure below:
PROGRAM MODE - EXT, INT and TACH.
External Flow - EXT
1. Turn selector switch to Ext. Flow.
2. Press °C/°F button and hold down. Then press ON, i.e. two buttons are pressed at the
same time.
3. On the left side of the display appears the turbine type number, i.e. 16 gpm; on the
right side of the display is the standard calibration number. Use the FAST key to
browse through the list of turbine types. Press UNITS to select a turbine type.
4. Use the FAST key to increment the number above the cursor. Press UNITS to move
to the next column. After entering the calibration factor, press UNITS until the display
overflows. The display will now show the number of digits after the decimal point. Use
the FAST key to select the number of decimal places to appear on the display.
5. Press the ON button to store the entries.
Internal Flow - INT
The internal calibration factor on the readout is factory set to the OTC 4291 100 gpm Flow
Block Loading Valve when supplied together. Alternatively the internal calibration factor should
be loaded by switching to INT and repeating the program instructions above.
TACH
The calibration factor for RPM is pre-programmed for a factor of 1.0. For the RPM/N function,
the tachometer provides N pulses per revolution of the shaft.
To set factor N:
1. Turn selector switch to TACH.
2. Press °C/°F button and hold down. Then press ON, i.e. two buttons are pressed at the
same time.
3. The display shows the current value for "N". Use the FAST key to increment the
number above the cursor. Press UNITS to move to the next column.
4. Press the ON button to store the entries.
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Programming