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GM8802C-E Compact Transmitter

GM8802C-0E110102

- 45 -

7 Common

Problems

GM8802C-E

transmitter gives prompts for various

errors and warnings. When the warning appears, the
main display of

GM8891C

indicator will display the

warning information, and then automatically return to its
original status after stop for some time. The detail
information is as follows:

．

“OVER”

The output from the load cell is too

┅┅┅

high during zero calibration.

a) Connection error of load cell, please check the
connection of load cell

Содержание GM8802C-E

Страница 1: ...GM8802C E User s Manual GM8802C 0E110102 4 8 0 1 0 2 0 3 2 3 1 0 0 3...

Страница 2: ...NTS 1 General Description 1 1 1 General Description 1 1 2 Functions and Features 1 1 3 Front Panel 2 1 4 Technical Specifications 4 2 Installation 6 2 1 Connection of Load Cell 6 2 1 1 6 wires Connect...

Страница 3: ...of Analog Output 11 2 4 Connecting with GM8891C Indicator 12 2 4 1 The Front Panel Description of GM8891C 13 2 4 2 Rear Panel Description of GM8891C 15 2 4 3 The Relevant Parameters of GM8891C 16 2 4...

Страница 4: ...for Calibration with Weight 29 4 3 Method of Calibration without Weight 30 4 5 Table for Parameter Calibration 2 35 5 Working Parameters Setting 35 5 1 Parameter Setting Method 35 6 Operation 41 6 1...

Страница 5: ...6 3 Connected with PC 44 7 Common Problems 45 8 Dimensions 49 9 Appendix 50...

Страница 6: ...used in weight transmitted industry field 1 2 Functions and Features Small dimension to operate easier Suitable for all resistance strain sensors Calibration and parameters through outer digital oper...

Страница 7: ...GM8802C E Compact Transmitter 2 GM8802C 0E110102 1 3 Front Panel...

Страница 8: ...upply 2 Input Interface of Weighing Sensor 3 Output interface of Analog 4 Communication Interface of Parameter Setting POWER Indicator Light of Power Supply OUT Indicator Light of Analog output COM In...

Страница 9: ...s General Specifications Power supply DC24V 5 Working temperatures 10 40 Humidity 90 R H without dew Power about 3w Dimensions 92 90 45 mm Analog Part Load cell exciting voltage DC5V 280mA MAX Input r...

Страница 10: ...GM8802C 0E110102 5 Input range 0 02 10 5mV A D conversion Sigma Delta A D conversion speed 200times second Non linear 0 01 F S Gain drifting 10PPM D A resolution ratio 16 Bits Analog output 4 20mA 0...

Страница 11: ...hose the four wired load cells you must bridge the SN with EX and bridge the SN with EX Because the input signal of the sensor is a analog signal it is more sensitive to electronic noise so this signa...

Страница 12: ...E Compact Transmitter GM8802C 0E110102 7 The signal definition of each port of the load cell connector as follows Port EX SN EX SN SIG SIG GND Definition Excitation Sense Excitation Sense Signal Signa...

Страница 13: ...GM8802C E Compact Transmitter 8 GM8802C 0E110102 2 1 1 6 wires Connection Load cell Shield...

Страница 14: ...GM8802C E Compact Transmitter GM8802C 0E110102 9 2 1 2 4 wires Connection...

Страница 15: ...GM8802C E Compact Transmitter 10 GM8802C 0E110102 2 2 Connection of Power Supply GM8802C E transmitter uses 24V direct current power and the connection as follows 24 Negative pole 24 Positive pole...

Страница 16: ...11 2 3 Connection of Analog Output GM8802C E transmitter can change the current weight value into analog output the output interfaces are Vout Iout and GND as follows Here Vout Analog output positive...

Страница 17: ...on interface to set parameters and digital display COM indicator light will flash for success connection and communication GM8891C indicator will display the parameters weighing value and working stat...

Страница 18: ...act Transmitter GM8802C 0E110102 13 2 4 1 The Front Panel Description of GM8891C GM8891C Front Panel Figure The main display 6 bits displaying the weight data analog output and relevant data Status in...

Страница 19: ...hopper is 0 1 4d STAB Stable lights up when the weighing value is within stability criterion range DATA lights up when it display mA or V output Keyboard Zeroing and exit from the current function sta...

Страница 20: ...GM8802C E Compact Transmitter GM8802C 0E110102 15 2 4 2 Rear Panel Description of GM8891C GM8891C Rear Panel Figure 1 Communication interface 2 GND connection...

Страница 21: ...s red super luminescent nixie tube State display 3 green LED Negative number display Overflow display OFL Decimal point position 5 options Keyboard Four key beep keyboard 2 4 4 Connecting Cable Specia...

Страница 22: ...tal operational panel as follows users must have special communicating cable and either GM8891C indicator or special PLC software produced by our company Step no 1 Firstly power off GM8891C and GM8802...

Страница 23: ...igure a Step no 2 Then power up GM8802C E 24V GM8891C indicator will display value after 2 seconds which means user can set parameters now otherwise failed so please power off and check the communicat...

Страница 24: ...GM8891C Step no 4 After finished please disconnect GM8802C E and GM8891C and power up GM8802C E again Note The function of our special PLC software is similar as GM8891C indicator so the above four s...

Страница 25: ...802C 0E110102 then operate this PLC software open the interface Baud rate is 19200 power up GM8802C E till the PLC display show When successfully connected you can start to set parameter and calibrati...

Страница 26: ...arameters and calibration etc Data input operation is needed during calibration and parameter setting as follows Press the following keys to finish the data input operation when the display flicker bi...

Страница 27: ...ition move 1 place to the right When the flickering digit is the last place press the key then the flickering place move to the left place Confirm the data input and finish the operation Zeroing all t...

Страница 28: ...longer meet the user s needs due to any part of the weighing packing system was changed Please refer to the following details 1 When GM8802C E and GM8891C are connected correctly user can press GM889...

Страница 29: ...GM8802C E Compact Transmitter 24 GM8802C 0E110102 4 1 Calibration Method...

Страница 30: ...GM8802C E Compact Transmitter GM8802C 0E110102 25...

Страница 31: ...GM8802C E Compact Transmitter 26 GM8802C 0E110102...

Страница 32: ...GM8802C E Compact Transmitter GM8802C 0E110102 27...

Страница 33: ...GM8802C E Compact Transmitter 28 GM8802C 0E110102...

Страница 34: ...ion with Weight Record the zero millivolt value gain millivolt value and weight value in the below table for later urgent calibration without weight Please follow below flow chart for calibration meth...

Страница 35: ...of Calibration without Weight Input the Millivolt value recoded at step 4 2 for urgent calibration But if sensor was changed or there is any change in controller system the above record will be inacc...

Страница 36: ...GM8802C E Compact Transmitter GM8802C 0E110102 31...

Страница 37: ...GM8802C E Compact Transmitter 32 GM8802C 0E110102...

Страница 38: ...GM8802C E Compact Transmitter GM8802C 0E110102 33...

Страница 39: ...Calibration 1 Symbol Parameter Type Parameter Initial Value Pt Decimal Place 5 0 0 0 0 00 0 000 0 0000 0 1d Min Scale Division 6 1 2 5 10 20 50 1 CP Max Capacity Min scale division 30000 10000 SE Sen...

Страница 40: ...ter GM8802C 0E110102 35 4 5 Table for Parameter Calibration 2 5 Working Parameters Setting 5 1 Parameter Setting Method Parameter Desired value Date Remark Decimal Place Min Scale Division Sensitivity...

Страница 41: ...GM8802C E Compact Transmitter 36 GM8802C 0E110102...

Страница 42: ...GM8802C E Compact Transmitter GM8802C 0E110102 37...

Страница 43: ...GM8802C E Compact Transmitter 38 GM8802C 0E110102 1 Press to select a desired item among sibling items 2 Press to enter the screen for setting working...

Страница 44: ...E Compact Transmitter GM8802C 0E110102 39 parameters confirm then exit Press to return to last item 3 Press to select a desired parameter value 4 Pls refer to appendix 1 for detail descriptions of par...

Страница 45: ...GM8802C E Compact Transmitter 40 GM8802C 0E110102 5 2 Descriptions of Working Parameters...

Страница 46: ...ill change the weight signal into the standard analog signal OUT indicator light lights up The OFL indicator light lights up when the measurement signal is over the largest span or the input signal is...

Страница 47: ...ht lights up if the current weight value is within 0 1 4d the STAB indicator light lights up if the change of current weight value is within Stability criterion range 6 1 Zeroing Operation Under norma...

Страница 48: ...current weight value press to display the corresponding analog output value mA or voltage of the current weight as well as mA V indicator light lights up Then press again to return to display the cur...

Страница 49: ...each other through our special communicating cable the fixed Baud rate is 19200 Operating GM8802C E transmitter through our special software in PLC and the concrete operation steps are identical with...

Страница 50: ...ning appears the main display of GM8891C indicator will display the warning information and then automatically return to its original status after stop for some time The detail information is as follo...

Страница 51: ...uring zero calibration a Connection error of load cell please check the connection of load cell b Put heavy objects in the weighing hopper or platform if the warning disappears the possible cause is t...

Страница 52: ...form is too light to measure by GM8802C E c Error in connection with load cell and the possible cause is looseness Note if the connection between the instrument and load cell uses 4 wire system EX sho...

Страница 53: ...me of gain calibration the entered gain maximum capacity 5 The display will be unstable for field vibration so please check the filtering parameter and properly increase it The filtering parameter is...

Страница 54: ...GM8802C E Compact Transmitter GM8802C 0E110102 49 8 Dimensions...

Страница 55: ...f Max Capacity 3 1 9 1 Stability criterion range 1 9d optional 4 0 1 1 0 0 5 Stability criterion time 0 1 1 0d 5 0 9 1 Zero tracking range 0 9d 6 0 5 1 0 1 5 2 0 1 0 Zero tracking time 0 5 1 0 1 5 2 0...

Страница 56: ...GM8802C E Compact Transmitter GM8802C 0E110102 51...

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