User`s guide

TURNING TOUCHSCREEN LOCK OFF

To turn Touchscreen Lock off while running a Method, follow these steps:

1. From the Method Run display, the Touchscreen Lock button should be in the Locked mode which

appears as a “closed” lock.

2. Select the Method Lock button to cancel Touchscreen Lock. The application will display a warning

message in the Message Area asking you to confirm your Unlock selection.

. Select the Method Lock button again to confirm the unlocking request. The button display will change

to Unlocked mode.

Setting the Force Limits

The PHD ULTRA

™

motor generates up to 75 lbs of linear force in operation. This force is sufficient to

damage delicate, low-volume syringes, as well as many standard syringes if pumping viscous fluids. The

application software provides controls to allow you to set a maximum force value (calculated as a

percentage of the maximum value).

Figure 13: Set Force Level screen.

TO ADJUST THE MAXIMUM FORCE SETTING:

1. From the Quick Start or Method Main screen, choose the Settings button.

2. From the Settings menu, choose the Force button to enter the Set Force Level screen.

3. Select the desired preset level value or use the Set Other Value button to enter a custom force level.

4. If you select Set Other value, enter the desired force setting as a percentage value (1-100%) then

choose Accept to confirm your setting.

5. When you have selected or entered the desired force value, choose Accept to return to the Settings

menu.

✐

NOTE: A minimum value of approximately 30% is required to overcome friction forces

in the mechanism. You may have to set the Force Level to a higher value depending on

the backpressure/friction in your system.

Harvard Apparatus PHD ULTRA

™

Syringe Pump Series User's Manual

Publication 5419-002-Rev-A

etting Up The PHD ULTRA™