Scientech S9000 - Manual (Page 6)

RANGE SELECTION (dual range balances only)
Pressing the RANGE switch selects low (LO), high (HI) and autorange (HI LO). As a range is selected, it briefly appears at the
left of the display. Autorange automatically switches from low range to high range when a weighing exceeds the capacity of the
low range. The Floating Tare feature is only available in the LO range (see Floating Tare section for details).
THE FUNCTION SWITCH
NOTE: On dual range models, pressing the MODE and RANGE switches simultaneously will duplicate the functions
of the FUNCTION switch found on single range models.
Pressing the FUNCTION switch (see Figure 4) cycles the display through six functions as follows:
*PCS - front panel parts counting
HI OK LO - checkweighing
CAL 1 - autocalibration
CAL 2 - factory set - do not use
T - Live animal weighing
CAL 100 - % weighing
To access the desired function, press the MODE switch when it appears on the display.
* Parts counting through the front panel is not functional with an optional PDA or bi-directional RS-232 enabled.
(CAL 1) AUTOCALIBRATION - Using an External Calibration Weight
NOTE: If your balance has a motorized internal calibration weight (9000-INT), please use the procedure for
Autocalibration Using 9000-INT Motorized Internal Calibration Weight.
NOTE: Dual range models must be placed in HI range before starting the calibration procedure.
NOTE: For correct calibration weight refer to specification charts on pages 28-31.
The balance should be warmed up for at least one (1) hour prior to calibration and leveled according to the Unpacking
and Setup section. Perform autocalibration every time you move your balance. Calibrate the balance using a recently
certified external calibration weight. Metrology handbooks state that the calibration weight utilized to calibrate a balance should
have a tolerance no larger than the readability of the balance divided by 4. Therefore, SA models need a ±0.025mg tolerance
weight or better, SP models need a ±0.25mg tolerance weight or better, SL models need a ±2.5mg tolerance weight or better, and
SG models need a ±25mg tolerance weight or better. In addition, these same handbooks recommend that all balances be
calibrated using an external certified calibration weight even if the balance has an internal calibration weight.
1. Remove any containers or weighing samples so
that nothing is on the stainless steel pan. Then
press the ZERO switch.
Zeros are displayed.
2. Press the FUNCTION switch (or MODE and
RANGE switches simultaneously for dual
range models).
Display cycles repeatedly through PCS, HI-OK-LO, CAL1, CAL2, T ,
and CAL 100.
3. Press the MODE switch when CAL1 appears. CAL1 and a flashing 0 are displayed.
4. Wait 10 seconds. Then press the ZERO
switch.
The display stops flashing. In about 10 seconds, either a single weight
value or two alternating weight values will flash on the display.
5. Place one of the flashing calibration weights on
the pan.
The display stops flashing and the selected weight is displayed. If Err
1 appears, the calibration weight is an incorrect weight. Remove the
weight and use a proper weight. If Err 2 appears, the balance is not
warm enough for calibration. Wait one hour before starting the
calibration procedure again.
6. Wait 10 seconds. Then press the ZERO
switch.
The weight continues to be displayed for about 10 seconds while the
calibration takes place. Then the display blanks, displays “OK”, and
displays the calibration weight value. The balance is now calibrated.
7. Remove the calibration weight. The display returns to zeros and the normal weighing mode.
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