DENVER TP
Contents
1. Remove the protective cap A from the bottom of the balance scale The main PCB is now accessible through an opening in the balance scale housing Connect the white plug on the cable of BP adapter to the corresponding position on the main PCB Connect the plug on the power cable of the BPI adapter to the power jack on the balance scale Plug the balance scale AC adapter into the power jack on the BPI adapter The equipment is now connected as follows The balance scale has a 25 pin RS 232 interface for the service software There is a seperate power supply to the balance scale so that the BPI mode can be activated only with batery not possible Replace the weighing pan and turn on the balance scale When 0 0 is displayed use a suitable tool to press and hold the button on the BPI adapter accessible through an opening in the housing The balance scale now performs its self test display segment check re peatedly Wait until the segment check has lit up at least 3 times then press the but ton again The balance scale electronics are now in the BPI mode and you can use the balance scale with the service software After working in the BPI mode make sure to set the write protect again using the Close function in the service software program so that the bal ance scale returns to the SBI mode SBI serial balance interface this is the standard data transfer protocol Otherwis2. 19 Baht b 17 7 Troy ounces ozt 3 1 20 Mesghal io 17 8 Hong Kong taels tl 17 9 Singapore taels tl 17 10 Taiwanese taels tl 3 3 Preset reference sample quantity 17 11 Grains GN Reference percentage number of 1 7 12 Pennyweights dwt Subweighing operations for averaging 17 13 Milligrams mg 3 3 1 5 1 7 14 Parts per pound o 3 3 2 10 1 7 15 Chinese taels tl 3 3 3 20 1 7 16 Mommes m 3 3 4 50 1 7 17 Austrian carats k 3 3 5 100 17 18 Tola t 17 19 Baht b 1 7 20 Mesghal m 5 Interface 8 Extra Functions 5 1 Baud rate 8 1 Menu Access 5141 1 150 baud 81 1 Parameter settings can 51 2 300 baud be changed 51 3 600 baud 81 2 Read only 51 4 1 200 baud 51 5 2 400 baud 8 2 External Switch Function 51 6 4 800 baud 82 1 CF Key 51 7 9 600 baud 82 4 ARE Key 82 5 Key 5 2 Parity 82 6 F Key 521 Mark 82 8 ARE key 5 2 2 Space 5 2 3 Odd 8 3 Power on Mode 5 2 4 Even 83 1 Off gt on 83 2 Stand by gt on 5 3 Number of Stop Bits 5 3 1 1 9 Reset Menu 5 3 2 2 91 Factory Settings 5 4 Handshake Mode 9 1 Restore factory settings 5 4 1 Software handshake 9 2 Do not restore factory 542 Hardware handshake 1 char settings after CTS 543 Hardware handshake 2 char Auto On function after CTS By setting a jumper on the main PCB or data interface PCB 6 Print in Weighting Mode 6 1 Manual auto print mode 6 1 1 Manual without stability 6 1 2 Manual with stability 61 3 Automatic without stability 61 4 Auto
3. the Off center Load Remove the weighing pan and any shock absorber Remove the Phillips screw A and remove the hood Remove the 2 fastening screws from the pan support 7 mm open end wrench and remove the pan support The strain gauge load receptor is now accessible Correct the off center load by filing on one of the thin sections Always file the thin section that corresponds to the greatest off center load error Note Only small deviations can be adjusted If the strain gauge load receptor is visuably bent an adjustment is not possible anymore Place the pan support on the load receptor and fasten it Place the hood shock absorber and weighing pan back on the balance scale Check the off center load and readjust it if necessary Note Important Offnen TIF Linearity Adjust the linearity using the service software Activate the BPI mode see page 7 Connect the balance scale to the PC and start the linearity program in the service software Reset the balance scale to the SBI mode by activating the Close function in the service software Check the span adjustment and adjust if necessary see Span Adjustment below Span Adjustment There are two ways to perform span adjustment 1 With the service software or 2 as described in this manual Select the menu code External adjustment accessible code 1 5 2 lf necessary set the weight unit for the calibr
4. DENVER TP Series Service Manual Electronic Precision and Gold Models incl Spare Parts List and Service Specifications F _ DENVER INSTRUMENT General Information Service Concept Overview of BL and GL Models Service Tools and Equipment Accompanying Literature Operating the Balance Scale Functions the of Keys Balance Scale Operating Menu Accessing the Balance Scale Operating Menu and Changing the Settings Activating the BPI Mode Calibrating Adjusting the Balance Scale Calibration Adjustment Sequence Adjusting the Overload Stops Adjusting the Center load Stop Adjusting the Zero point Offset Value Zero point Offset Value Table of Balancing Resistors Off center Load Checking the Off center Load Adjusting the Off center Load Linearity Span Adjustment Opening and Closing the Balance Scale Replacing PCBs Replacing the Main PCB Installing the YDOO1BL Interface Port Overview of the Balance Scale Operating Menu Codes Error Messages Page OwWWwW WwW wo ar A A BD oO WO MOWOAN NN DD OD 10 10 10 11 13 General Information Service Concept All repair service including diagnostics should be performed at a well equipped repair center Spare Parts are available in sets see the list on page 15 If the strain gauge load receptor should become defective the entire balance scale should be replaced Overview of TP mode Status 03 98 TP 214 TP 114 TP 313 TP 213 TP 3102
5. TP 2102 TP 1102 TP 602 TP 6101 TP 4101 TP 2101 Service Tools and Equipment In addition to standard tools you will need the following special tools to work on the Basic Series and Gold Series balances scales Qty Designation Order no BPI adapter service data output port 6740 71 Sartocas service software version 1 30 6740 33 or later and RS 232 cable for connecting the balance scale 7357312 to PC or CAS Psion Server version 4 6 or later 6379 98 Accompanying Literature lit Installation and Operating Instructions for Basic and Gold Series Balances Scales e Operating the Balance Scale Functions of the Keys 1 0 On off CF Clear function Used to interrupt cancel functions F Function key Starts the selected application program To display selected reference sample quantity or percentage press and hold this key for approx 2 seconds Print key TARE Tare key To start calibration adjustment press and hold this key for approx 2 seconds Balance Scale Operating Menu Accessing the Balance Scale Operating Menu and Changing the Settings Accessing the Menu 1 O TARE Turn the balance scale off and then turn it back on Press TARE briefly while all display segments are lit If 1 is displayed the menu is locked read only If the menu is locked change the code setting from 8 1 2 to 8 1 1 Once you sto
6. ace the entire subassembly Replacing the Main PCB Before replacing the main PCB use the service software to read out and store the balance scale s data record if possible If this is not possible order a pre programmed PCB indicating the balance scale model and serial number Open the balance scale see page 9 Disconnect all cables Remove the fastening screws from the main PCB Remove the old PCB Take the zero point offset resistor from the old PCB and place it on the new PCB Follow the above instructions in reverse order to install the new main PCB The balance scale must now be programmed with the required data record unless you have installed a pre programmed PCB The following factors must be checked and if necessary adjusted Zero point offset value Linearity Span Installing the YDO01BL Data Output Port Open the balance scale see page 9 Lay the balance scale on its side Remove the protective cap A Guide the ribbon cable from the output port through the opening in the balance scale housing and plug it into the main PCB make sure the plug and the positive negative poles are in the correct positions Replace the protective cap A Thread the ribbon cable from the output port through the guides provided for this purpose on the base of the balance scale housing Turn the balance scale upright Remove the plate from the back of th
7. ation weight code 1 4 x factory setting kg code 1 4 2 Unload the balance scale and if necessary press TARE to tare the display Press and hold the _F key for gt 3 sec to activate the calibration routine The weight value of the required calibration weight is displayed without weight unit e g 5 000 Center the prompted weight on the weighing pan e g 5 000 kg The balance scale will only accept a weight that is within a tolerance range of approximately 2 of the nominal weight Any greater error can only be adjusted using the service software Opening and Closing the Balance Scale After the adjustment procedure the weight is displayed with weight unit e g 5 000 kg Remove the calibration weight Check the span again and adjust it if necessary Disconnect the balance scale from power remove the battery if one is installed Remove the weighing pan as well as any shock absorber and or pan support and place to one side Remove the Phillips screw A Remove the hood by carefully pulling it towards the front Make sure that you do not damage the ribbon cable that connects the display PCB to the main PCB The display PCB main PCB and load receptor are now accessible Note Gamma 5 7 ax y A Dant Replacing PCBs In the case of defects do not attempt to make any repairs at the component level but repl
8. e balance scale Target mV A D converter output 0 25 to 0 49 4 3 to 8 3 If the zero point offset voltage is outside the tolerance range listed above balancing resistor R29 must be adjusted in accordance with the table be low Eckl 02 EPS C 9 Eckl 01 TIF Table of Balancing Resistors Zero point offset voltage V R29 resistance value ohms 2 475 2 310 10 2 310 2 144 1 800 2 144 1 979 3 600 1 979 1 813 6 200 1 813 1 648 9 100 1 648 1 482 12 000 1 482 1 317 15 000 1 317 1 151 20 000 1 151 0 968 27 000 0 968 0 820 33 000 0 820 0 655 43 000 0 655 0 489 51 000 0 489 0 324 68 000 0 342 0 158 100 000 0 158 0 007 150 000 The balancing resistor must have the following specifications Metal film 0 6 W 1 TK50 Off center Load Checking the Off center Load Center the test weight see Service Specifications page 14 on the weighing pan position 1 and press t 0 0 is displayed depending on model and settings Place the test weight on positions 2 3 4 and 5 in sequence The absolute values displayed for all 4 positions must be within the limits listed in the service specifications see page 14 If the off center load error exceeds the tolerance listed in the service specifications in any of these 4 positions the off center load should be adjusted with the greatest positive error value see Adjusting the Off center Load below Adjusting
9. e housing by pulling it upward Use the 2 screws to fasten the output port in the position made available by removing the plate Close the balance scale Then test the output port with the following peripheral devices as available Sartorius printer e g model YDP03 0CE Service software SBI test Data transfer software for PCs and laptops e g Balance Reader Overview of the Balance Operating Menu 1 Balance Scale Functions 2 Application Programs 11 Adapt Filter s 111 Minimum vibration 2 1 Program Selection 112 Normal vibration 2 1 1 Basic weighing function 113 Strong vibration 2 1 2 Toggle weight units 11 4 Extreme vibration Sr Nev tole iare menary 2 1 4 Counting 1 3 Stability Range 2 1 5 Weighing in percent 131 Y digit 2 1 12 Averaging 13 2 Ye digit 133 1 digit 3 Appliction Parameters 13 4 2 digits 13 5 4 Digits 3 1 Weight Unit 2 3 1 2 Grams g 1 4 Weight Unit for Calibration Weight 3 1 3 Kilograms kg 141 Grams 3 1 4 Carats ct 142 Kilograms 3 1 5 Pounds Ib 14 3 Pounds 3 1 6 Ounces OZ 3 1 7 Troy ounces ozt 3 1 8 Hong Kongtaels tl 18 AUG Zero 3 1 9 Singapore taels tl 164 On 3 1 10 Taiwanese taels tl 162 Off 3 1 11 Grains GN 3 1 12 Pennyweights dwt 17 Weight Unit 1 3 1 13 Milligrams mg 17 2 Grams g 3 1 14 Parts per pound o 17 3 Kilograms kg 3 1 15 Chinese taels tl 17 4 Carats ct 3 1 16 Mommes m 17 5 Pounds lb 3 1 17 Austrian carats k 1 7 6 Ounces oz 3 1 18 Tola t 3 1
10. e you will not be able to operate peripheral devices with the balance scale when is pressed the error code t JU is displayed Calibrating Adjusting the Balance Scale Calibration Adjustment Sequence After installation or following maintenance or repair work check and if necessary adjust the following factors 1 Overload stop 2 Zero point offset value 3 Off center load 4 Linearity 5 Span Adjusting the Overload Stops The overload stop must be reset after the strain gauge load receptor has been damaged or replaced Weight readouts greater than the balance scale s maximum capacity must be read off The service software is required for this procedure Activate the BPI mode see page 5 Service software Select the Diagnostics program then select the High Resolution subprogram When adjusting the overload stop read off the weight value shown on the Psion server or PC display After adjusting the overload stop activate the Close function in the service software to reset the balance scale to the SBI mode Balance Scale Type Test Weights TP 214 280g 10 TP 114 140g 10 TP 313 400g 10 TP 213 280g 10 TP 3102 3500g 10 TP 2102 2400g 10 TP 1102 1400g 10 TP 6101 6500g 10 TP 4101 4500g 10 TP 2101 2500g 10 TP 602 700g 10 Anschl02 JPG Offset1 TIF Adjusting the Center load Stop Open the balance scale see page 9 and then reconnect
11. ired TK sensor or main PCB is defective replacement required The scale is underloaded minimum Either the weighing pan load Plate is not on the scale or There is a mechanical defect or A defect in the main PCB Either the scale is overloaded or there is a mechanical defect or a defect in the main PCB
12. it to the power supply Center the required test weight and an additional 200 g corresponds to the weight of the weighing pan and the shock absorber on the weighing pan The service software display shows a stable weight readout Adjust the stop screw inward until the overload limit is just reached The weight readout is no longer stable Adjust the stop screw 1 2 turn outward The center load stop is now properly adjusted On balances and scales with a round pan there are two overload screws see arrows Both have to be adjusted Zero point Offset Value The zero point offset value adjustment is necessary for adapting the bridge voltage of the strain gauge load receptor to the operating range of the balance scale electronics This may be necessary after replacing the strain gauge system after replacing the main PCB if the span cannot be adjusted even with the service software and the error code e 02 is displayed when the zero point offset voltage has changed and is outside the tolerance limit e g due to the strain gauge load receptor being bent Adjusting the Zero point Offset Value Open the balance scale see page 9 Connect the cable from the digital voltmeter DVM to IC15 pin 6 and ground Place the shock absorber and the weighing pan on the balance scale and reconnect the power supply Use the DVM to check the preload voltage with no load on th
13. matic at stability 7 Print in Application Mode 7 1 Line Format 711 Without data ID codes 712 With data ID codes Display H L E01 E 02 E 10 E11 E 22 E 30 E 50 E53 E 54 E55 Error Code Cause Balance scale capacity exceeded No pan Something is touching the pan Display overflow i e the value to be output cannot be displayed Calibration parameter not met e g scale balance not tared load on balance scale F key is blocked when there is data stored in the 2 tare memory Value cannot be stored in the 2 tare memory Weight too light or no load On the scale key pressed while BPF mode active Overflow or underflow in the temperature compensation converter Temperature compensation converter is not functioning the processor is not receiving any measured data from the TK switch A D converter output is below the Limit A D converter output is above the maximum limit Solution Unload the scale Place the pan on the scale Remove whatever is touching the pan Reduce the load on the scale Only start calibration when zero is displayed Press TARE to tare Unload the balance scale Press CF to clear the 2 Tare memory Press TARE Increase the weight on the scale Set the scale to the SBI moe e g by activating the Close function in the MC1 server TK sensor or main PCB is defective replacement requ
14. re this code the menu is accessible Selecting a Menu Code and TARE To select a certain menu code press TARE to change the number of the digit displayed to the desired number Numbers change in a cyclical sequence starting at 1 again after 9 is reached To select the next digit menu level press Changing a Menu Code Setting _ press and hold To confirm the desired code setting press the for approx 2 seconds The superscript o is displayed to indicate that this is the current setting To exit the balance scale operating menu and store the new settings TARE press t for approx 2 seconds To exit the balance scale operating menu without storing any changes to the settings press O Data 01 EPS BPI Button l nee eo ne Main PCB BPI 01e EPS Caution Activating the BPI Mode The BPI mode must be activated in the balance scale before you can work with the service software You need to use this software for example to adjust the span after the zero point offst was changed the linearity and or after replacing a PCB The BPI adapter part no 6740 71 must be connected to the balance scale before the BPI mode can be activated The procedure for connecting the adapter is as follows Turn off the balance scale and disconnect it from the power supply Remove the weighing pan
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