Local Operation 4
Vent
Note
The set-point can also be changed using either the Step or the Jog function.
Please see Chapter 4, Step/Jog.
Entering/Exiting Control Mode
1.The Control mode is set from the Main Menu. (Press PREVIOUS until the Main Menu appears.)
2.Press CONTROL [F2] to enter Control mode. ENTER must be pressed to confirm entry into Control mode.
3.Press MEASURE key found in the keypad to exit Control mode. No confirmation is necessary.
Vent
The Vent [F3] function is used to rapidly vent the pressure in the system to atmosphere.
Step/Jog
In addition to entering the pressure set-point through the key-pad, the pressure set-point can be changed using either the step or the jog functions. The Step function is used primarily when the operator is taking pressure steps in equal pressure increments. The size of the pressure step is user defined. The Jog function is most often used when calibrating mechanical gauges such as a dial gauge and the operator wishes to change the pressure until the mechanical gauge indicates a cardinal point. The operator can then read the higher resolution Calibrator to determine the actual pressure value when the mechanical gauge is indicating a cardinal point. The Step/Jog [F5] key toggles between Step and Jog, to switch between these modes, press the function key 5 [F5].
Stepping
Assure that the word Step is highlighted in the Step/Jog [F5]. Using the rotary knob, rotate the knob clock-wise to increase the set-point, or counter clock-wise to decrease the controller set-point. The scratchpad will be updated to a new set-point. The step size defaults to 10% of full scale. Press ENTER to accept the new set-point.
Setting Step Size
From the Main Menu, press Menu [F6] ⎢Setup [F2 ⎢User [F2]. Using the rotary knob, move the cursor to highlight Step Size. Enter the desired step size in the current pressure units and press ENTER.
Jogging
Assure that the word Jog is highlighted in the Step/Jog [F5]. From the Main Menu, the pressure set-point can be modified by rotating the rotary knob clockwise to increase pressure and counterclockwise to decrease pressure. Each increment or decrement will change the pressure in the least significant digit. Continually rotating the rotary knob, the pressure will continue to change until the rotation is stopped.
