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GM8804C-7 is an effective checkweigher controller that comes with patented technologies. The core competence of this checkweigher controller is a high-speed data processing and filtering. This check weighing controller offers the right ability to balance data stability and response speed. These qualities make it an efficient, reliable and accurate checkweigher machine.

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  • CE approved
  • 20 I/O control ports (8 inputs / 12 outputs)
  • A two-layer advanced digital filtering algorithm
  • RS232/RS485 serial communication ports
  • Dynamic and static check weighing application
  • Specially designed for check weighing applications
  • Electronic Calibration
  • Multiple digital Filter
  • Auto zero at Power
Power Supply 90V~260V AC 50Hz(or 60Hz)±2%
Power Consume About 15W
Type 24-bit Delta-Sigma
Analogue input range 0.2mV to 27mV
Linearity <0.01%FS
Gain Drifting 10PPM/℃
Minimum Sensitivity 0.5 µV/d
Conversion Rate 120/s
Display Accuracy 1 / 100,000
Main Display 6 digits, 7 segments, VFD
Sub Display 3 digits, 7 segments, VFD
Keyboard 16 buttons with beeping feedback
Status Indicators (18 VFD indicator) ZERO, STAB, RUN, SUM, OVER, UNDER, SP1, SP2, SP3, DISC, NZ, FILL, HILIM, HI, GO, LO, LOLIM, HOLD
LED Status Gross, Net, Tare, Pack
Calibration By test weight or by electronic calibration
Digital Filter Multiple FIR filter with 9 selectable levels
Weighing Functions zero, zero tracking, auto-zero at power
Operating Temperature -10℃ to 40℃
Storage Temperature -25℃ to 70℃
Relative Humidity 90% R.H without dew
IP Level Front panel IP 65
Excitation 12V
Load Cells Drives 8pcs Load Cells 350Ω
Dimensions & Weight 165×181×98 mm (L×W×H) weight approx. 2.5kgs
Standard Mounting Panel Mount
Certification CE
Enclosure ABS front panel, cast aluminium body
Input Number 8
Input Functions (11 Self-defined functions) Run, Stop, Zero, Alarm, Tare subtraction, Reset tare, Gross/Net, Product code, Detecting signal, Printing accumulation, Keypad lock.
Output Number 12
Output Functions (22 Self-defined functions) Run, Stop, Buzzer, Busy, Near zero, Checking, Hold, Over, OK, Tolerance, Batches completed, Alarm, Stable, HILIM, HI, GO, LO, LOHIM, Gross, Net, Detecting feedback, Over tolerance.
Type Isolated 16-bit D/A converter
Accuracy 0.04%
Voltage Output 0-5V / 0-10V / -5-5V / -10-10V
Current Output 4-20mA / 0-20mA / 0-24mA
Print RS232 Port
CONT Continuous Sending
CHER Checking Result
Modbus Standard Modbus RTU
Parameter Password protected
Fuse Protection


Clearing Up Your Queries and Providing Informed Solutions
What is a weighing controller?

A weighing controller is a device that is used to control and manage the weighing process. It is responsible for receiving and processing signals from the load cells or sensors and providing output signals to other devices.

What is a weighing indicator?

A weighing indicator is a device that displays the weight of the load on the weighing scale. It is typically used in conjunction with load cells or sensors to accurately measure the weight of objects.

What is a weighing transmitter?

A weighing transmitter is a device that converts the signal from load cells or sensors into a standardized signal that can be used by other devices, such as a computer or a PLC.

What are load cells?

Load cells are transducers that are used to measure weight. They convert the force exerted by a load into an electrical signal that can be measured and analyzed.

What is calibration?

Calibration is the process of adjusting a weighing system to ensure that it provides accurate and reliable measurements. It involves comparing the system's readings to a known standard and making adjustments as necessary.

Why is calibration important?

Calibration is important to ensure that the weighing system provides accurate and reliable measurements. A poorly calibrated system can lead to incorrect measurements, which can have serious consequences in industries such as healthcare, pharmaceuticals, and food production.

What is zero drift?

Zero drift is a phenomenon in which the zero point of a weighing system shifts over time. This can be caused by changes in temperature, mechanical wear, or other factors.

What is the difference between analogue and digital weighing systems?

Analogue weighing systems use analogue signals to transmit data, while digital weighing systems use digital signals. Digital systems are generally more accurate and reliable, and can provide more advanced features and functionality.

What is the difference between a single point and multi-point weighing system?

A single point weighing system uses a single load cell to measure the weight of an object, while a multi-point weighing system uses multiple load cells. Multi-point systems are typically more accurate and reliable, but also more complex and expensive.

What are the different application of weighing controller?

● Tank / silo weighing ● Process weighing ● Peak weighing ● Batch weighing ● Bagging system, Check weighing ● Loss-in weight ● Weigh feeder ● Continuous weighing and Dosing ● Liquid Filling ● Weighing and Blending

What are the different Models of Weighing Controller?

M02, GMT-P1, GMT-X1, GM7702, GM8804C-2, M04, GM9907, GM8804C-A6, GM8804C-6, GM8804C-7 etc.

How can we select the Weighing Controller model?

Model selection depends on the application, Process flow, Number of Input and output required, Communication protocol requirement, Speed and accuracy requirement.

What types of mounting is available in controller?

Panel mount , DIN Rail Mount , Field Mount

Is there any Touch Screen Model available?

Yes we have 9907 Series weighing controller having touch screen interface.

Is there any TFT display Model available?

Yes we have M04 Series Weighing controller having TFT display.

Is there any VFD Display Model available?

Yes we have a GM8804C series having VFD display.

Is there any model who can control dual hopper application?

Yes we have GM8804CD, M04 D and GM9907LD model who can control dual hopper application.



Prompt Is a leading manufacturer of electronic weighing scales


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