Drawell TD Series User manual

User Manual
FOR TD/JTB SERIES PRECISION
BALANCE
Please read operating manual before installation and operation.
Drawell International Technology Limited
Shanghai Drawell Scientific Instrument Co.,Ltd
Add : Suite 1506,Lane581 XiuChuan Rd.,PuDong New Area,Shanghai,China
Tel: [phone]
Fax: [phone]
Web : www.drawell.com.cn
Email : [email protected]

TD/JTB series precision balance works on high precision strain gauge
load cell which implements high speed stabilization and high reliability.
Specifications,
Model No. (JTB)
1003
2003
3003
Max. Capacity (g)
0-100
0-200
0-300
Tare Range (g)
100
200
300
Readability
0.001
Repeatability (g)
+/-0.001
+/-0.001
+/-0.002
Non-Linearity (g)
+/-0.001
+/-0.001
+/-0.002
Corner Error (g)
+/-0.001
+/-0.001
+/-0.002
Pan Size (mm)
∮90mm
Dimensions (LxWxH)
295x192x280mm
Power supply
AC 110-120V/220-240V
Model No. (TD)
3002
6002
10002
20002
30002
50002
Max. Capacity (g)
0-300
0-600
0-1000
0-2000
0-3000
0-5000
Tare Range (g)
300
600
1000
2000
3000
5000
Readability
0.01
Pan Size (mm)
∮125mm
170*170mm
Dimensions (LxWxH)
265x200x80mm
Power supply
AC 110-120V/220-240V
Model No. (TD)
3001
1001
12001
30001
50001
100001
Max. Capacity (g)
0-300
0-100
0-1200
0-3000
0-5000
0-10000
Tare Range (g)
300
1000
1200
3000
5000
10000
Readability
0.1
Pan Size (mm)
∮125mm
170*170mm
Dimensions (LxWxH)
265x200x80mm
Power supply
AC 110-120V/220-240V
Model No. (TD)
1000
2000
3000
4000
5000
10000
Max. Capacity (g)
0-1000
0-2000
0-3000
0-4000
0-5000
0-10000
Tare Range (g)
1000
2000
3000
4000
5000
10000
Readability
1
Pan Size (mm)
∮125mm
170*170mm
Dimensions (LxWxH)
265x200x80mm
Power supply
AC 110-120V/220-240V

Operating Temperature Range: 5-35 Degree Centigrade
Moisture: 50-85%
Function Keys,
TARE, to tare
CAL, to calibrate
PCS, for counting
Features,
High Precision Loadcell
Aluminum Alloy die cast base, Plastic case
Stainless Steel Platter
Super Bright easy to read contrast LED display
Height adjustable feet
RS232 Interface Optional
Full Capacity Taring
Simple 3 keys menu for easy operation
Stabilization time 1-1.5 seconds typically
Overload Protection
Below Balance Weighing Facility
Checking Weighing, Piece counting function
ASSEMBLING
Unpack the package, put the platter on the top of the loader.
Put the balance on a steady flat surface away from vibration, direct
sunshine ,air blow or strong magnetic disturbance..
TURN ON THE BALANCE
Connect the balance to power supply, keep the switch in the ON(-) status.
the balance will in turns display following figures,
8.8.8.8.8.8.
Maximum capacity
------------
Finally the balance stays in a standby state of showing 0.0g,0.00g or 0.000g in
the display
Notice: the lasting time of --------- will be decided by the stability of the loadcell,
thus, the balance must not be located in an unstable surface or in the wind
blow.

CALIBRATION
The purpose for this operation is to calibrate the balance so as to achieve
the best performance in case there is obvious tolerance error in weighing
or the balance is located in different gravity due to different latitude.
it is suggested to warm up the balance over half an hour before calibration.
Remove all loads from the platter, press key TARE to clear the readings to
0.0g,0.00g or 0.000g.
Press and hold key CAL for 3 seconds, release the key CAL when
“---CAL---“ is shown in the display, a figure of standard weight will flash in
the display, put a standard weight on the platter accordingly, standby state
“------“ will be shown in the display for a few seconds before the standard
weight figure is shown in the display, remove the weight, “------“ standby
state will remain for a few seconds before the balance enter stable
weighing mode, showing 0.0g ,0.00g or 0.000g.
It is recommended to make the operations twice to achieve the best
calibration result.
Linearity Calibration, Press and hold key CAL for 3 seconds, release the
key CAL when “---CAL---“ is shown in the display, after a short presence of
“- - - - “, a standard weight figure will flash in the display, press and hold
key PCS to enter linearity calibration mode, follow the instructions to
proceed linearity calibration.
WEIGHING
When the balance is warmed up and calibrated, 0.0g,0.00g or 0.000g is shown
in the display indicating weighing mode, put the object on the platter, when
stable, the weight of the object is shown in the display.
TARING
When a loader is put over the platter, its weight is shown in the display, press
key TARE, 0.0g ,0.00g or 0.000g will be shown in the display, indicating the
weight of the loader is deducted, put the object into the loader, when stable,
the figure shown in the display is the weight of the object.
PIECE COUNTING
Remove all loads from the platter, press key TARE to clear the readings in the
display, press key PCS to enter counting mode, “- -COU- -“ “- - - -“ and figure
10(default sampling quantity) will in turns be shown in the display, press key
CAL to select sampling quantity from 10,25,50,100 up to 500,release key CAL
when the desired quantity flashes in the display, put a sample on the platter
accordingly, press key PCS again to save setting, the counting mode setting is
finished, in counting mode, weighing unit will change from g to PCS.
Notice: In counting mode, the weight of the sampling objects should be even,

the weight of the individual sample should not be less than the division of the
balance.
Return to Weighing Mode: Press key PCS to return to Weighing mode.
OVERLOAD
The weight of the objective cannot exceed the rated maximum capacity of the
balance, when exceeding, “-------“ will be shown in the display, remove the
objective immediately from the platter so as to prevent damages to the
balance.
TIPS
Warming up is necessary before any operation to the balance.
In TARE mode, the value of the tare cannot exceed the maximum capacity
of the balance
Calibration is necessary to ensure a reliable weighing.
Switch off the balance when it is not used.
It is suggested to turn the round platter clockwisely before take it off the balance
Maintenance ----- Trouble shooting and solutions
Phenomenon
Possible Reason
Solution
Upper Line - - - -
Over Load
Re-calibrate the Balance
Under Line_ _ _ _
The object is not properly loaded to
the balance
Re-calibrate the Balance
Err-1
Too frequently turn on and off the
balance
Turn off the balance, resume it after 3
seconds
Err-2
The balance is not stablised
Wait for a few seconds for stabilization

Drawell International Technology Limited
Shanghai Drawell Scientific Instrument Co.,Ltd
Add : Suite 1506,Lane581 XiuChuan Rd.,PuDong New Area,Shanghai,China
Tel: [phone]
Fax: [phone]
Web : www.drawell.com.cn
Email : [email protected]