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NTEP - National Conference on Weights and Measures

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Made in USA

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Group Four Transducers Inc
The G4610 is a full-featured multipurpose, easy-to-use digital strain gauge & load cell meter ideal for weight and force measurement applications. With a max current of 350 mA at 10 V, it can support up to twelve (12) 350 Ù load cells (minimum load resistance of 28 Ù), making it ideal for multipoint weight measurement applications. It accepts mV input signals up to 300 mV (unipolar) and ± 250 mV (bipolar). The G4610’s powerful dual-scale capability allows the measurement to be displayed in two different units of measure.

G4610 Force & Pressure Indicators

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The G4610 is a full-featured multipurpose, easy-to-use digital strain gauge & load cell meter ideal for weight and force measurement applications. With a max current of 350 mA at 10 V, it can support up to twelve (12) 350 Ω load cells (minimum load resistance of 28 Ω), making it ideal for multipoint weight measurement applications. It accepts mV input signals up to 300 mV (unipolar) and ± 250 mV (bipolar). The G4610's powerful dual-scale capability allows the measurement to be displayed in two different units of measure.



  • 15, 30, 150, 300 mV Unipolar Input Ranges.
  • ±15, ±25, ±150, ±250 mV Bipolar Input Ranges.
  • Selectable 5 or 10 VDC Sensor Excitation.
  • Supports up to twelve (12) 350 O Load Cells
  • (Minimum Load Resistance of 28 O).
  • Capture or Programmable Tare Feature.
  • Auto-Zero Feature Eliminates Zero Drift.
  • Ratiometric Operation.
  • Max/Min or Peak/Valley Hold Feature.
  • Large Dual-Line 6-Digit Display, 0.60" & 0.46".
  • Dual-Scale Feature – Single Input.
  • Rounding Function 1, 2, 5, 10, 20, 50, or 100.
  • Programmable Display & Function Keys.
  • 32-Point Linearization.
  • NEMA 4X, IP65 Front.
  • Input Power Options Include 85-265 VAC or 12/24 VDC.
  • 2 or 4 Relays + Isolated 4-20 mA Output Options.
  • External 4-Relay & Digital I/O Expansion Modules.
  • USB, RS-232, & RS-485 Serial Communication Options.
  • Modbus® RTU Communication Protocol Standard
  • Configure, Monitor, and Datalog from a PC with Free MeterView® Pro Software.


Precise, Accurate, and More Informative
The large 0.6" upper display provides a highly accurate and precise 6-digit view of the process measurement. Its 24-bit A/D is accurate to ±0.03% of calibrated span ±1 count.

The upper display can be programmed to indicate PV, maximum (peak), minimum (valley), alternating maximum/minimum, one of eight alarm set points, or Modbus input. The lower display can also be configured to display engineering units, set points, user defined legends, or simply turned off.

Function Keys
There are three function keys available to the user. These keys can be programmed to trigger certain events (e.g. tare the display, reset the tared display, zero the displayed value, acknowledge alarm states, etc.), provide direct menu access points, and more.

A unique front panel design makes the G4610 nearly impenetrable in typical applications. Here, the G4610 easily survives a direct hit on the display from a heavy 2" solid stainless steel ball dropped from a height of eight feet.

Optional SunBright DisplayModels
The G4610’s SunBright display models have an extraordinarily bright LED display. They are perfect for applications where the meter is in direct sunlight or in applications where visibility may be impaired by smoke, fog, dust, or distance. Option is available on all G4610 models.

On-Board Digital Input
The G4610 includes a digital input as a standard feature. This digital input can operate with the tare, reset tare, or interlock relays feature, force relays on from a signal from a PLC or relay on other equipment, and much more. This is ideal for installations where the meter is inaccessible behind a cover, or where an additional function key is needed for customized

Zero the Meter
The zero function zeroes out the display. In the case where there has been drift in the strain gauge output over time, zero is used to eliminate this drift and provide a true zero reading. For example, if an empty scale were to display a value other than zero, the zero function would tell the meter to show zero regardless of the current input signal.

Capture Tare
The tare function also zeroes out the display. In the case of scale weight, tare is used to eliminate container weight and provide net weight readings. If the tare value is a known constant, such as a container weight, this may be programmed in manually. The captured tare may be reset manually with any function key or digital input.

Automatic Unit Conversion
In addition to entering a custom unit or tag, pre-defined engineering units may be selected: lb, kg, ounce, gram, ton (short), tonne (metric ton). Automatic unit conversions are done when switching between pre-defined units, without the need for additional scaling. The meter converts the reading according to the unit selected (e.g. 100.00 lb = 45.36 kg = 45359.2 g = 1600 oz).

The auto-zero feature corrects for drift that can occur over time that causes the input signal to slowly change. The meter will continue to read zero despite slow and small changes to the input signal around zero. The auto-zero sensitivity is set by the user as a percent of full scale.

The rounding feature is used to give the user a steadier display with fluctuating signals. It causes the display to round to the nearest value according to the rounding value selected (1, 2, 5, 10, 20, 50, or 100). For example, with a rounding value of 10, and a input of 12346, the display would indicate 12350.

Shunt Calibration Check
The G4610 is equipped with a means of simulating strain in a strain gauge bridge circuit, via an included shunt resistor in the meter. This technique can be used as a means of verifying the meter setup and output behavior by simulating a physical input. With no load connected, the enabling of the shunt resistor will simulate a 70% full scale load in the case of a 350O Strain Bridge.

Ratiometric Compensation
This feature compensates for changes in the strain gauge input signal that are due to variations in the internal or external excitation voltage. The compensation is effective for up to ±5% variation in the excitation power supply.

Dual-Scale Display Feature
The G4610 has a rather unique, and very flexible dual-scale capability; a second scaled display can represent the measured input in a different form (i.e. gallons & height). This is of particular value in level applications. Please see the examples shown below. Both displays are independently scaled and are based on the 4-20 mA input signal. Beyond level, this function has been used for pressure & force, weight & piece count, feet & meters, and more.

Advanced Linearization Capability
The includes a 32-point linearizer. In non-linear level applications (i.e. some pumping or lift stations), it can easily compensate for submerged equipment or plumbing that displace usable volume. A second independent 8-point linearizer is available for a second scaled display (PV2) when the dual scale feature is enabled. The free MeterView Pro PC-based software greatly simplifies the construction of the linearization tables. The software can save this data to the meter and/or


Modbus® RTU Serial Communications
With the purchase of a serial communication adapter, The G4610 meter can communicate with any Modbus Master device using the ever-popular Modbus communications protocol that is included in every G4610 meter. This greatly increases the flexibility of the meter. Modbus provides much more capability than read PV and write set points. Below are some examples of other things that can be done with The G4610's Modbus communications.

  • Send a 6-character message to the lower display upon an event
  • Convert a digital value to a 4-20 mA signal
  • Remote user control (i.e. change set points, acknowledge alarms)
  • Input a Modbus digital PV (in place of analog input)
  • Remote override of any, or all, relays and analog outputs

Meter Copy
The Copy feature is used to copy (or clone) all the settings from one G4610 to other G4610 meters in about 20 seconds! The Copy function is a standard feature on all meters. It does not require a communications adapter, only an optional cable assembly, P/N PDA1200. See part numbers section for complete details.

Add functionality to the G4610 in the field with easy-to-install external expansion modules. Add USB, RS-232, or RS-485 communications, I/O modules (up to 2), and 4-relay expansion module. The menu items for these modules do not appear until the module is connected, simplifying the basic menu. See part numbers section for details.

Configure, monitor, and datalog a G4610 strain gauge meter from a PC using MeterView Pro Software.


Relay Outputs
The G4610 has up to four 3 A Form C relays (SPDT) with multiple power loss fail-safe options. Relays can be configured for proper protective action upon input loop break. Relay ON and OFF delay times are user adjustable. Up to eight front panel indicators show alarm and/or relay state. All relays can be configured for 0-100% deadband.

Relay Operation/Configuration
There are powerful relay functions that can be configured in the G4610 strain gauge meter, including:

  • Automatic reset only (non-latching)
  • Automatic + manual reset at any time (non-latching)
  • Latching (manual reset only)
  • Latching with clear (manual reset only after alarm condition has cleared)
  • Pump alternation control (automatic reset only)
  • Sampling (activated for a user-specified time)
  • User selectable fail-safe operation
  • Relay action for loss (break) of 4-20 mA input signal
  • Time delay (on and off), independent for each relay
  • Manual control mode
  • Interlock relay mode

Analog Output
The isolated analog retransmission signal can be configured to represent the process variable (PV), maximum (peak) value, minimum (valley) value, the value for any of the eight relay set points, or Modbus input. While the output is nominally 4-20 mA, the signal will accurately accommodate under- and over-ranges from 1 to 23 mA.

Manual Output Control
Take control of any output with this feature. All relays can be forced ON or OFF, and the 4-20 mA output signal can be set to any value within its range. When the relays and 4-20 mA output are controlled manually, an LED labeled “M” is turned on and the associated Alarm LEDs (1-8) flash every 10 seconds indicating that the meter is in manual control mode.

Isolated Transmitter Power Supplies
A powerful isolated power supply is a standard feature on the G4610 meter. It can be configured for 5, 10 (default), or 24 V (not to be used with strain gauge or load cell) by means of a simple internal jumper (see manual). An additional power supply (24 V @ 40 mA) is standard with the 4-20 mA output option.