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TPF / TFB Series Floor Scale Service Manual

- 4 -

Load cell Specifications

Dimension
s in mm

B
1

ØD M

Cap:
500kg to
2T

13
0

15.
8

25.
4

76.
2

54.
2

31.
8

15.
8

31.
8

34 13.

M12X1.7
5

Model

H8C

Rated Capacity ( Emax)

500kg / 1T / 2T

Sensitivity

3.0 ± 0.003mV/V

Accuracy Class

Zero Balance

± 1% F.S

Input Impedance

400 ±20Ω

Output impedance

352 ±3Ω

Insulation Impedance

≥

5000MΩ

Temperature Range ( Compensated)

-10°C ~ +40°C

Temperature Range (Operating)

-30°C ~ +70°C

Maximum Safe Overload

150%F.S

Ultimate Overload

180%FS

Excitation , Recommend

10~12V DC

Excitation, maximum

15V DC

Protection Class

IP68

Construction

Alloy Steel

Cable

4mtr

Содержание TFB sereis

Страница 1: ...Service manual ...

Страница 2: ...TPF TFB Series Indicator Service Manual 1 ...

Страница 3: ...7 5 OPERATION 8 5 1 Operation 8 5 2 Operation Limits 8 5 3 Load Unload weighing 8 6 MAINTENANCE 9 6 1 Daily Check 9 6 2 Cleaning 9 6 3 General 10 6 4 Determine the problem 10 6 5 Testing Load cell 10 6 6 Check Indicator voltages 11 6 7 Problems and Solutions 12 6 8 Parts Replacement 13 7 DRAWING 15 7 1 Dimension 15 7 2 Exploder Drawing 16 ...

Страница 4: ... the platform if there is any evidence of damage to the platform or supporting structure Changes to the weighing system s design are not permitted This may lead to incorrect weighing results safety related faults and destruction of the balance 1 4 Monitoring In the frame work of quality assurance the measuring related properties of the weighing system and if applicable test weight must be checked ...

Страница 5: ... instructions in the manual Carefully read this manual before setup and commissioning even if you are already familiar with floor scales The appliance may only be operated and maintained by trained personnel 2 2 Transport and storage 2 2 1 Testing upon acceptance When receiving the appliance please check packaging immediately and the appliance itself when unpacking for possible visible damage 2 2 ...

Страница 6: ... Construction Mild Steel A36 Carbon Steel Stainless Steel Type 304 Grade Level Within 3 of level Operating Temperature 0 C 40 C 32 F 104 F Resolution 3000 Load Cells 4 load cell ADC Sigma Delta ADC Update 1 10 second Stabilization Time One seconds typical Gross Weight 61kg and above 45kg and above Floor level distance 81mm above Packing Wood Box ...

Страница 7: ...pacity Emax 500kg 1T 2T Sensitivity 3 0 0 003mV V Accuracy Class C3 Zero Balance 1 F S Input Impedance 400 20Ω Output impedance 352 3Ω Insulation Impedance 5000MΩ Temperature Range Compensated 10 C 40 C Temperature Range Operating 30 C 70 C Maximum Safe Overload 150 F S Ultimate Overload 180 FS Excitation Recommend 10 12V DC Excitation maximum 15V DC Protection Class IP68 Construction Alloy Steel ...

Страница 8: ...tallation Accurate weighing results require a floor scale with perfect horizontal alignment During initial installation and after each change of work area it is necessary to level the floor scale Select a location that is flat solid level and full supports the weight of platform with full capacity load Use a forklift or other lifting means along with chains Cables or nylon straps to remove the sca...

Страница 9: ...icator manual to ensure a proper calibration Note The floor scale is shipped fully assembled wired and corners calibrated Corner s Calibration The Junction Box Summing Box Assembly has four extended range multi turn potentiometer trim pot and one or two for each load cell 7Pin Connection Pin 1 Signal Pin 2 Signal Pin 3 Shield Pin 4 Exc Pin 5 Sen Pin 6 Sen Pin 7 Exc 5Pin Connection Pin 1 Signal Pin...

Страница 10: ...e as the highest reading 7 Proceed clockwise repeat the adjustment to all corners of the scale until reading reach all corners is same Because the trim pot interact with one another any adjustment will affect the weight readings at all four corners of the scale Note If junction box has two trim ports for each load cell want to adjust both ports for each corner When moving the test weight s from th...

Страница 11: ...r the edges or the ramps Check adjustment at regular intervals Avoid falling load shock loads and impacts from the side 5 2 Operation Limits The floor scales are designed extremely robust The load limits according to the following table should not be exceeded Depending on the type of load receptacle the static carrying capacity The maximum admissible load is Weighing Range 1000kg 2000kg 3000kg Cen...

Страница 12: ...rm or damage to or destruction of the equipment 6 1 Daily Check Ensure that all four feet are in contact with the floor Ensure that the connecting cable to the display unit and the network connection cable of the display unit are not damaged Ensure that the balance is free from dirt especially under the edges of the balance 6 2 Cleaning Remove regularly corrosive substances Keep IP protection Prot...

Страница 13: ...o a load cell simulator Reapply power and test the indicator If problem goes away its source is probably in the platform Check the wiring connecter load cells and mechanical components of the platform If problem persists its source is probably in the indicator Check the indicator voltages connecters cables and function programs 6 5 Testing Load cell For testing load cell remove power from the syst...

Страница 14: ...ance Connect the load cell to a stable DC source of between 5 to 10V Connect multimeter to mV and connect to the load cell signal wires The meter should read 0 00mV approximately 1 of full load If the output reads greater than 10 of full scale capacity then the load cell will require replacement 6 6 Check Indicator Voltages If the problem is in the Indicator use a multimeter to check the following...

Страница 15: ...he scale is in acceptable location Check the connecters and load cell Check the power supply and battery Weight value incorrect Calibration error Platform of load cell touching somewhere Wrong weighing unit Use accurate weight for to do the calibration Check the pan and load cell is installed proper and touching Check the parameter settings Check the load cell and connecters Can not use full capac...

Страница 16: ...le Tie a string to the end of the cable attached to the defective load cell The string should be strong and long enough to pull the new load cell s cable through the platform structure The load cells s are fastened to the platform using two Head Cap Bolts Remove this load cell mounting bolts with a box spanner retaining the screws for reinstallation Lift the load cell and spacer plate from the mou...

Страница 17: ...and store it within the platform Bolt the new load cell and spacer plate to the platform Apply an anti seize compound such as Never Seez to the threads of the mounting screws and tighten them with a calibrated torque Thread the load cell cable through the connector of the junction box Wire the new load cell cable to the proper summing connector Level the scale with the leveling feet Reattach the i...

Страница 18: ...TPF TFB Series Floor Scale Service Manual 15 7 DRAWING 7 1 Dimensions in mm TPF TPFS TFB TFBS T ...

Страница 19: ...ty Material Spec 1 Star Screw 4 SUS M6x10 2 Junction Box Housing Cover 1 3 Hexagon Screw 6 SUS M5x10 4 Junction Box Cover 1 SUS 5 Star Screw 4 S18C M4x8 6 Junction Box PCBA 1 7 Insulation Washer 8 EPDM 8x4 5 8 Internal hexagon Screw 2 SUS M6x10 9 Junction Box Case 1 SUS 10 Cable Gland 5 11 Scale base 1 12 Screw Plug 4 M14 ...

Страница 20: ...anual 17 13 Internal Hexagon Screw 2 S18C M8x65 14 Washer 8 SPCC 16 5x8 5 15 Wheel 2 16 Nut 2 S18C M8 17 Spacer 4 18 Load Cell 4 19 Flat Washer 8 SPCC 23x12 5 20 Adjustable Foot 4 SUS304 21 Bolt 8 S18C 22 Spring Washer 8 TFB TFBS Drawing ...

Страница 21: ... Left Platform base 1 3 Load Cell Shim 4 SUS 4 Load Cell 4 Steel 5 Flat Washer 8 SUS M12 6 Spring Washer 8 SUS M12 7 Hexagon Screw 8 Steel M12x50 8 Right Platform base 1 9 9 Pin Connector 2 10 Sealing Plug Nut 1 Nylon M16 12 Foot 4 SUS BJ 8 129 13 Junction Box 1 ABS 13 Star Screw 2 SUS M6x8 14 Protection Plug 1 Nylon M16 ...

Страница 22: ...ucts Medical Scale Counting Scale Tabletop Scale Retail Scale Precision Scale Platform Scale Weighing Indicator Crane Scale Floor and Pallet Scale Accessory Software TSCALE has its manufacturing unit in Kunshan China ISO 9001 certified company OEM ODM partner more than 20 products have OIML certifications from Holland s NMI and Denmark s Delta TScale Electronics Mfg Kunshan Co Ltd 268 Zhujiawan Ro...

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