Rice Lake RL550 Digital Chair Scale Technical and Operating Instructions - Manual (Page 14)

ENTER
10 Rice Lake 550 Digital Chair Scale Technical Manual
The keys on the front panel display are very sensitive so only a gentle pushing motion is required to
obtain results.
To prevent injury, do not exert unnecessary force on the arm rests.
The scales have the capability of performing different operations beyond just calculating weight. The various
operating instructions are described below.
4.1 Weighing
Use the following steps to weigh a person.
1. Press the
On/Off
key to turn on the scale and
0.0
will appear on the display along with
ZERO
on the upper
display.
2. Have the person sit down on the scale. The display shows the person’s weight, and the
LOCK
annunciator
is on in the upper display and beeps to indicate the end of the weighing process.
3. To change the display from LB to KG and vice-versa, press the
LB/KG
key.
4. To turn off the scale, press and hold the
On/Off
key until
OFF
appears on the display.
4.2 Hold/Release Function
Use the following steps to use the Hold/Release function:
1. When the person is on the scale, press the
Hold/Release
key.
2. When the person gets off the scale, the weight and the
HOLD & LOCK
annunciator will remain on the
display.
3. At this stage the
ZERO
key will not work. The only way to return to zero from here is to press the
Hold/
Release
key one more time.
Note
Pressing the HOLD key prior to a person getting on the scale will also work.
4.3 Preset Tare
Use the following steps to use the Preset Tare:
1. When the weight is set to
0.0
, place the extra load on the scale and press the
TARE
key until the display
returns to
0.0
and
NET
appears on the display.
2. Remove the extra load from the scale. The weight will appear with a negative symbol to the left of it.
3. Ask the patient to sit down on the scale with the extra weight. The display then shows the patient’s
weight. The
NET
annunciator is still on. The weight of the extra load remains stored in memory.
4. To cancel the tare weight, press and hold the
TARE
key until
NET
disappears from the display and the
display turns back to
0.0
and
GROSS
appears. Tare weight is also canceled when the scale is turned off.
4.4 Toggle Tare
Use the following steps to use the Toggle Tare function:
1. When the weight is set to
0.0
, press the
TARE
key.
2. The default tare value is displayed (default is programmed to be 33.0 LB/15.0 KG), while the zero is
flashing.
ENTER Used to accept height in BMI mode.
Up/Down Arrows Used to adjust height input (0.5 in/0.5 cm) while in BMI mode.
CAUTION
Note
Key Name Function
Table 4-1. Digital Chair Scale Key Functions