Owner`s manual

8551-M912-O1 Rev D  PL400 Owner’s 4

The membrane keyboard is not

to be operated with pointed

objects (pencils, pens, fingernail,

etc.). Damage to the keypad

from this practice will NOT be

covered under warranty.

KEYPAD FUNCTIONS

The PL400 Patient Lift Scale Indicator has a

membrane keypad containing three (3) keys.

The keypad is shown in Figure No. 3. The

following describes the use of each key:

Figure No. 3

Pressing this key will apply power to the instrument and turn on the indicator display.

If the indicator is already on, pressing this key will zero the indicator.

Pressing this key when the indicator is on will remove power to the instrument.

This key is used to change the weighing units to the alternate units of measurement.

For example, with pounds displayed (lb annunciator turned on) pressing this key will

change the weighting units to kilograms (kg annunciator will turn on).

OPERATION

1. Press the ON/ZERO key to turn the indicator on. If the LOCK feature has been enabled,

the unit will display the last weight reading stored by the device and the LOCK annunciator

will be on. Otherwise, the unit will display the current weight.

2. To clear the last weight reading stored, press the ON/ZERO key. The unit will then display

the current weight.

3. Press the ON/ZERO key again to zero the display.

4. The patient is placed in the sling and lifted from the bed.

5. When weight is stable, the STABLE annunciator will turn on.

6. If the Auto-Shutoff feature has been enabled, the unit will turn itself off after a stable weight

reading is displayed for the preset time. Refer to the AUTOMATIC SHUT-OFF FEATURE

section for more information.

7. If the unit turns off before the patient was properly weighed, it can be turned on again by

pressing the ON/ZERO key as described in steps 1 and 2.

LOCK WEIGHT FEATURE

This feature stores the last weight reading when the unit is turned off, either by the Auto-

Shutoff feature or by pressing the OFF key. When enabled, after turning the unit back on, the

stored weight is displayed and the LOCK annunciator will be lit to indicate the displayed weight

is a stored weight and not the current weight. This feature allows the operator to store a

weight reading and record it after leaving the patient’s room.

The Lock Weight feature is enabled or disabled during the indicator Setup and Calibration.

Refer to that section for more information.

ZERO

OFF

Lb/kg