Gravity Measurement SWT User manual

Washdown weighing checkweighing user manual
Please read this manual carefully before operation
----Important safety info
----Operating condition and other attentions
----Guarantee info
Model: SWT
GRAVITY MEASUREMENT, INC.

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Please read the manual in details before operation Please use the right plug and right voltage (110 V)
Adjust the bubble level on the balance position Don’t hit the platform rudely and overload
Don’t put the chemical liquid or other liquids Don’t open the scale by yourself and please call
to avoid damage to the scale the service people or our distributor when you get the
problem
Important Safety And Operation Info

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Please recharge the scale on time to assure the health of the battery, and replace the battery if it runs out of life.
The replaced battery must be handled correctly.
Specifications
4
Power
4
Before using
4
System power consumption
4
Display description
4
Basic function operation
5
Basic parameter setting
5
UF-1 Internal value and battery voltage
5
UF-2 High / Low limits setting
6
UF-3 Auto-power off
6
UF-4 Standby time setting
7
UF-5 Speed setting
7
UF-6 Zero tracking
7
UF-7 G Value setting
8
Weight Calibrations
8
ECF-1 Zero and Span Calibration
8
ECF-2 Zero Calibration
8
ECF-3 Span Calibration
9
Guarantee
9
INDEX

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SPECIFICATIONS
Accuracy: Class III
Nonlinear: ≤0.01%F.S
System working voltage: DC:5V
Maximum A/D converting: 24bit
Sample rate: 30 times per second (default)
POWER
Input: 120 ~ 240 V
Output: 12 V/ 1A
Rechargeable battery: 6 V/ 4AH
BEFORE USING
1) Place this product on a firm and smooth place, don´t place it in vibration or shaking, use
bench for use on four only adjust foot, adjust the balance using the bubble level.
2) Use independent source, avoid other electrical disturbance.
3) Don´t put any object on the platter when turn on the balance.
4) Please, turn on 2-3 minutes before using.
5) Avoid temperature change too large and air flow strenuous sites.
6) Don´t overload the balance, don´t exceed the maximal capacity.
SYSTEM POWER CONSUMPTION
Main system power consumption: about 20mA
Battery life: about 200 hours.

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DISPLAY DESCRIPTION
SWT Model:
BASIC FUNCTION OPERATION
Press and hold this key for 2 seconds to turn off the balance.
Function 1. Press this key to turn on the balance.
Function 2. To reset the weight to 0 ,but the displayed weight value has to
be less than ± 2% of maximum capacity.
Function 3. To subtract the container weight, tare range is 2% of full
capacity till full capacity.
Function 4. Enter in setup mode.
Function 5. To move to the right space in setup mode.
Function 1. To select the desired weight unit (depending on setting, display
kg, g, lb.)
Function 2. To exit from setup mode without saving.
Function 1. In weighing mode, press this key to setup UF functions
Function 2. In weighing status, press this key for more than 2 seconds in
external calibration function setup mode ECF-1.
Function 3. To change/increase values upward in setup mode.

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BASIC PARAMETER SETTING
To access to functions setting, press the key in weighing mode.Press the
key to select the parameter (UF-1 ~ UF-7 )
UF-1 Internal value and battery voltage
1. Press the key to view the A/D count, such as 14295 .
2. Press the key to view the the battery voltage,such as bat632 .
3. Press the key to return back to UF-1 .
4. To move to next parameter press the key.
5. To exit and return to normal weighing press the key.
UF-2 High / Low limits setting
1. Press the key to enter.
2. The display will show 00..000L (set low limit).
3. Use the key to move cursor and press the to select number.
4. Press the key to move to the end and press again to confirm.
5. The display will show 00.000H (set high limit).
6. Use the key to move cursor and press the to select number.
7. Press the key to move all the way to right and press again confirm.
8. The display will show o.000 . Refer to the remarks below.
9. Use the key to move cursor and press the to select number.
10. Press the key to confirm.

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Remarks: 0 0 0
A B C
A --- Buzzer on: 0= Stable not required 1= Stable required
B –- LED indicator: 0= Stable not required 1= Stable required
C : Buzzer beeps when: 0= Buzzer off 1= OK 2= LO or HI
Please note that low limit set as 0 will clear all check weigh values, even there is a high
limit set.
UF-3 Auto-power off
Modes: AoFF00 :Auto-turn off disable.
AoFF01 : The balance will automatically turn off after 1 minute of non use.
This time can be set up to 99 minutes.
1. Press the key to access to auto-power configuration.
2. Use the key to move cursor and press the to select number.
3. Press the key to confirm.
UF-4 Standby time setting
Modes: dsp 10 : The balance will standby time 10s.
1. Press the key to access to standby time configuration.
2. Use the key to move cursor and press the to select number.
3. Press the key to confirm.

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UF-5 Speed setting
Modes: spEED1 : High speed
spEED2 : Standard speed
spEED3 : Low speed
1. Press the key to access to enter.
2. Use the key to select number.
3. Press the key to confirm.
UF-6 Zero tracking
Modes: Zp 0 : OFF
Zp 1 : One division tracking at zero
Zp 2 : Two division tracking at zero
Zp 3 : Three division tracking at zero
Zp 4 : Four division tracking at zero
Zp 5 : Five division tracking at zero
1. Press the key to access to enter.
2. Use the key to select number.
3. Press the key to confirm.
UF-7 G Value setting
1. Press the key to display the G value of manufacture place.
2. Use the key to move cursor and press the to select number.
3. Press the key to confirm.

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Quick Weight Calibrations (ECF1-ECF3)
1. In weight mode, press the key for more than 2 seconds, the display will
show ECF-1 .
2. Press the key to select ECF-1 , ECF-2 or ECF-3 .
ECF-1 Zero and Span Calibration
1. Press the key to enter, display will show cALZ .
2. With nothing on the platter, press the key to calibrate zero point.
3. The display will show the calibration weight 06.0.000 .
4. Use the key to select the digit, press key to input the weight value.
5. Put the calibration weight on the platter and press the key to calibrate.
The scale will return back to weighing mode automatically.
ECF-2 Zero Calibration
1. Press the key to enter, display will show cALZ .
2. Press the key to calibrate zero point.
3. The scale will return back to weighing mode automatically.
ECF-3 Span Calibration
1. Press the key to enter, display will show the calibration weight 6.000 .
4. Use the key to select the digit,press key to input the weight value.
5. Put the calibration weight on the platter and press the key to calibrate.

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Advanced Function Operations
To get into locked functions (LF1-LF8), press and hold until 100611 is shown and
then release. Use and to Enter P0020
Increase the values upward and then recycle the values.
Move the cursor to the right and confirm (Enter).
Table: Locked Functions for advanced operations
LF1
Weight calibration
LF2
Configurations for capacity, decimals and divisions. Check configurations
LF3
Linearity calibration. Use this to add 1-3 linearization points for the scale.
equivalent to 0, 1/3, 2/3 and 3/3 of the max capacity.
CAUTION! Perform the linearity procedure only if test weights applied to
the scale between the zero and span calibration points are showing
inaccuracies, such as ± a few divisions. If large inaccuracies are
recorded, this indicates a possible mechanical problem or possible load
cell failure which linearity calibration may not be able to correct.
LF4
AD update Rate: use this to select the sampling frequency: 15 (1), 30 (2)
or 7.5Hz (3). Factory default: SPEEd 1 (standard 15Hz)
LF5
Zero Tracking: use this to define a ± 0 /5 divisions range around zero.
When scale weight is not at the center of zero but inside this range, ½ of
the weight will be subtracted until that the weight is inside the center of
zero region.
Factory default: ZP 0 (off)
LF6
Default to nonE. Do not change.
LF7
G-value: use this item to key in a G constant value: 9.78031 < G <
9.83217. If the scale has been calibrated at a different location and it is
not possible to re-calibrate with known test weights, the scale can be
adjusted using this gravity factor.
LF8
Zero at every power up: use this item to set an auto zero at the power up.
Factory default is sEtz Y