Transcell Technology TI-1520 User Manual Download Page 13

 

11 

CALIBRATION  

 

CALIBRATION OVERVIEW 

 
If your indicator was shipped as a complete scale, then calibration is not necessary. Please check 
with your installer or supplier if you are unsure. Transcell recommends having your weighing 
equipment checked by a qualified scale technician at least once a year depending on its intended 
use and working environment. 
 

The indicator requires two types of calibration: zero and span. Zero calibration (F16) requires the scale to 
be empty (nothing on scale) and the span calibration (F17) requires known test weights. After a 
successful calibration, you should record all calibration values in Table 2 using the F18 View Calibration 
procedure. 

 

In  the  unlikely  event  that  any  calibration value is lost, the setup menu makes provisions for re-entering 
these values via F19 and F20; thus eliminating the need for re-calibration with test weights. 

 

NOTE:  This  section  assumes  that  the  indicator  is  in  Setup  (“F”)  Menu  mode.  If  the  indicator  is  not  in 
Setup Menu mode, refer to previous section for instructions. 

 

ZERO CALIBRATION (F16) 

 
1.  While in the Setup mode, scroll to "F 16", then scroll down once using the ZERO key to enter 

zero calibration menu. The display will momentarily show "C 0" followed by a value. This value 
is the internal A/D count and can prove useful when trying to troubleshoot setup problems. 

2.  After making sure that there are no test weights on the platform, press the ZERO key again to 

zero out the displayed value. 

3.  Press  the  NET/GROSS  key  to  save  the  zero  point  value.  The  display  will  show  "EndC0

momentarily, and then revert back up to F16. At this time, proceed to the F17 span calibration 
to complete indicator calibration. 

 

SPAN CALIBRATION (F17) 

 
1.  While in the Setup mode, scroll to "F 17", then scroll down once using the ZERO key to enter 

span  calibration  menu.  The  display  will  momentarily  show  "C  1"  for  the  first  span  calibration 
point, followed by a value with one flashing digit. This value will be zero with the Decimal Point 
parameter selected in F10. 

2.  Place the first test weight on the weighing mechanism. 

3.  Use  the  four  directional  keys  to  adjust  the  displayed  value  to  the  actual  test  weight  value. 

Increase the flashing digit by pressing the UNITS key. Decrease the flashing digit by pressing 
the  ZERO  key.  Pressing  the  PRINT  key  or  the  TARE  key  will  change  the  position  of  the 
flashing digit. 

4.  After  entering  the  exact  value,  press  the  NET/GROSS  key  to  save  the  value.  If  the  C1 

calibration  was  successful,  the  display  will  show  "EndC1"  momentarily,  followed  by  
"C 2" for the second calibration point. 

5.  Repeat steps 2 thru 4 for C2 and C3. At the conclusion of C3, the indicator reverts back up to 

F17. NOTE: If you wish to use only one calibration point (C1), simply press the NET/GROSS 
key when prompted for C2 and C3 (do not enter in a calibration value). 

Summary of Contents for TI-1520

Page 1: ...MODEL TI 1520 Digital Weight Indicator User Manual Revision 1 8 August 3 2012...

Page 2: ...EW CALIBRATION VALUES F18 12 KEY IN ZERO CALIBRATION VALUE F19 13 KEY IN SPAN CALIBRATION VALUE F20 13 OPERATION 14 DISPLAY 14 KEYBOARD 15 FUNCTION KEYS 15 GENERAL SCALE OPERATION 15 WEIGHING AN ITEM...

Page 3: ...idential installation This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio com...

Page 4: ...ssible In extreme cases it may be necessary to install surge suppressors line conditioners or even UPS Uninterruptible Power Supplies systems not included Environment Avoid installing the indicator in...

Page 5: ...o the green load cell input terminal The TI 1520 indicator contains a connection terminal on the main board for connection to the load cell cable Connect your shielded load cell cable not included to...

Page 6: ...The Setup and User menus consist of several menu selections each with its own sub menu of selections or programming procedures To configure the indicator you must first enter the appropriate menu mode...

Page 7: ...S This section provides more detailed descriptions of the selections found in the Setup Menu Chart Factory set defaults are shown in bold NA for North America and for Europe NOTE Some selections are s...

Page 8: ...al point 0 NA 0 0 0 00 0 000 0 0000 00 F14 Units Conversion Allows the lb kg key to be disabled so that an operator cannot accidentally press the key and change the displayed units 0 Disable the Units...

Page 9: ...0 0 NA 10 F32 Center of Zero Band Selects the range around gross zero within which the scale will display the Center of Zero annunciator Selections are in display divisions d 0 25d US 0 5d F34 Auto Pr...

Page 10: ...Loads in a pre defined output string print format for the serial port Refer to Appendix B for details 0 Text Print Ticket 1 String Format 1 Condec Demand 2 String Format 2 Condec Continuous 3 Text Pri...

Page 11: ...alue Increase the flashing digit by pressing the UNITS key Decrease the flashing digit by pressing the ZERO key Pressing the PRINT key or the TARE key will change the position of the flashing digit 4...

Page 12: ...3 Use the four directional keys to adjust the displayed value to the actual date value Increase the flashing digit by pressing the UNITS key Decrease the flashing digit by pressing the ZERO key Press...

Page 13: ...troubleshoot setup problems 2 After making sure that there are no test weights on the platform press the ZERO key again to zero out the displayed value 3 Press the NET GROSS key to save the zero point...

Page 14: ...causes include incorrect load cell wiring a mechanical obstruction or a faulty load cell VIEW CALIBRATION VALUES F18 Note The values displayed in this procedure are valid only after a successful cali...

Page 15: ...id span calibration values obtained from a successful F17 calibration procedure must be used 1 While in the Setup mode scroll to F 20 and then scroll down once using the ZERO key The indicator will pr...

Page 16: ...ever the displayed weight is within a pre programmed band from true zero NET Indicates that the indicator is displaying net weight GROSS Indicates that the indicator is displaying gross weight TARE In...

Page 17: ...scale is not in overload see Appendix D for error codes Print This key is used to send weight information out to the serial port provided the following conditions are met 1 The scale is not in motion...

Page 18: ...u continue to push the UNITS key the indicator will resort back to weighing mode and you must start again from Step 2 3 Place the sample items on the platform all at once and allow the weight indicati...

Page 19: ...20 continuously and at the same transmission baud rate configured in A1 LEGAL FOR TRADE SEALING Indicators can be sealed for commercial Legal for Trade applications as follows 1 On the back of the ind...

Page 20: ...56 x 8 external to C Digital Filtering Software selectable SERIAL COMMUNICATIONS Serial Port Full Duplex selectable Baud rate 8 data bits no parity 1 stop bit 7 data bits odd parity 1 stop bit 7 data...

Page 21: ...tor to zero the scale The indicator will not respond if the scale is in motion positive overload or negative overload The indicator will also not respond if it is in net mode or outside the zero range...

Page 22: ...ht TWT 131 83 Print the data on screen CWT 132 85 Units lb kg PCS UN 133 86 Date DAT 134 87 Time TIM 135 88 O Over Under M Motion STAT 136 89 Gross Net flag G N GN 137 8A MP20 printer to print header...

Page 23: ...02 2E 31 53 S 03 4E N 32 80 GWT 04 4F O 33 85 UN 05 2E 34 0D CR 06 8C PRID 35 0A LF 07 0D CR 36 54 T 08 0A LF 37 41 A 09 44 D 38 52 R 10 41 A 39 45 E 11 54 T 40 20 12 45 E 41 82 TWT 13 8E PRSPS 42 85...

Page 24: ...larity SP Positive Negative Weight Data Units LB pound KG kilogram Gross Net GR Gross NT Net Start Transmission Carriage Return Line Feed SP SP Space Space pc pieces cu cusotm unit pcs pieces Address...

Page 25: ...F Polarity SP Positive Negative Weight Data Units L pound K kilogram Gross Net G Gross N Net Start Transmission Carriage Return Line Feed Status SP Valid M Motion O Over under range P pieces C custom...

Page 26: ...rrow key PRINT to increase the address by one Use the left arrow key TARE to decrease the address by one 3 After selecting the address you want to change press the NET GROSS key The programming value...

Page 27: ...Keyed in weight value is less than 1 of full scale capacity Use a larger test weight or check keyed in value Err 2 Span Calibration Mode F17 There is not enough load cell signal to produce the intern...

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