16
Digital Scale
Model 1000 Scale
The
MODEL 1000
weight module is a compact and
precise scale system integrated into the patient lifts
and specifically designed for patient lifts
.
Completely self-contained, the MODEL 1000 scale
combines the latest precision strain gauge technology
and microprocessor signal conditioning to provide
stable, accurate and repeatable weight data, with a
calibrated accuracy of 0.1%. One-button Auto Zero
Electronics makes resident/patient weighing quick
and easy. The MODEL 1000 scale derives its power
from a single 9-volts Lithium battery.
When battery replacement is required, an indicator
will show on the display. Simply remove the four
screws on the bottom of the case and remove the top
casing to access the battery.
CAUTION:
The Load Cell contains no user serviceable
components and should be serviced by au-
thorized personnel only. Any unauthorized
tampering will void the warranty.
Digital Scale Calibration
1
The serial numbers for display and load cell must
be identical.
2
Remove the screws from the back of the display
to expose the electronics.
3
Adjust switch SW4 to the
CAL.
position
(DOWN).
4
When no weight is applied to the system (includ-
ing sling), press SW1 (weight button) to adjust
R3 (offset potentiometer) so that the display
reads a +30 pound offset. Note: display will pe-
riodically flash
CAL
. to let you know you are in
CAL.
mode.
5
Attach the sling to the load cell.
6
Press SW2 (zero button) to zero the display.
7
Place a calibrated (must be at least Class F NIST
traceable) weight on to the sling and adjust R10
to that weight. Remove weight, reset zero (switch
SW2) and repeat. It is recommended that you use
at least 200 lb of calibrated weight to achieve an
accurate calibration.
8
When the reading of the display repeats the cor-
rect weight, remove all weight from the scale,
then return switch SW4 to the run position (UP).
9
Press zero button (SW2).
10 When the system indicates “0.0”, place a cali-
brated weight onto the sling and make sure that
the scale reads the correct value. Check scale at
maximum weight. All readings must be within
0.1% of NIST traceable standard.
SW4
SW3
SW1
SW2
R3
R10
CAUTION:
Calibration shall be
performed by a
qualified technician
in order not to inva-
lidate the calibration
certificate.
