SR Scales SR775L, Operating And Service Manual

Page: 9 / 16

Model SR775L
Service Manual - S/N 1035+
Part No. MAN775L_100929
Page 9 of 16
S
Instruments, Inc.
,
600 Young Street, Tonawanda, NY 14150
Tel: 716-693-5977 Fax: 716-693-5854 URL: www.srscales.com
email: sri@srinstruments.com Copyright 2010
S
Instruments, Inc.
BASIC SYSTEM OPERATION
SETTING SYSTEM ZERO
Before placing anything on the scale, ensure it is level and press the “ ZERO ” button.
When the system starts up, the display will quickly test all segments, indicate the software
revision level, and the local gravitational constant. All tare values will be erased and the scale will be
in GROSS WEIGHT mode. Display will zero. When both the ZERO and STABILITY DETECTION
display symbols are visible, weighing can proceed. Ambulatory patient can walk on the scale and
the weight will appear on the display. Non-ambulatory patients should not be placed on the scale
until tare is set for any equipment needed by the patient, i.e. wheelchair/chair/walker etc. Refer to
SETTING TARE .
WEIGH
When the system has been set to zero, the “ WEIGH ” button can be used after the patient is
positioned on the scale. Lock the patient’s wheelchair brake to prevent movement. The
display will indicate the patient’s weight. After Automatic Shut Off, simply press the
“ WEIGH ” button to re-activate the scale.
SETTING TARE
Place the empty wheelchair/chair/walker (with any blankets or
pillows that the patient may have with them) on the scale platform.
Press the “
ZERO ” button to tare the object’s weight. The display
will read “ 0.0 ”. Remove the wheelchair from the platform. Place
the patient in the wheelchair. Place the wheelchair on the platform. Lock the patient’s wheelchair
brake to prevent movement. Press the “
WEIGH ” button to display the patient’s weight.
When tare is known for an object, the amount can be pre-set via the keypad. Press the “ ENTER ”
button to activate the keypad and display any pre-set tare data residing in memory. Enter the numeric
value of the weight of the current tare object. For example, 12.5 kilograms will be entered as 125
(decimal remains fixed).
Press the “ ENTER ” button again to save the data. The PRE-SET TARE and NET WEIGHT display
symbols will light on the display. The pre-set tare value will be indicated as a negative number until the
patient is positioned on the scale.
The “ CLEAR ” button, or an Automatic Shut Off, will cancel the pre-set operation if the “ ENTER ”
button has not already saved tare to memory.
The “ WEIGH ” button will re-activate the scale after Automatic Shut Off without compromising the tare
data.
0
CAUTION
Do not leave patient unattended on the scale platform.