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Omega DFG-RS5 User Manual

Digital force / torque indicator
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Model DFG-RS5
Digital Force / Torque Indicator

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Summary of Contents for Omega DFG-RS5

  • Page 1 Model DFG-RS5 Digital Force / Torque Indicator...
  • Page 2 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide...

  • Page 3: Table Of Contents

    For additional information or answers to your questions, please do not hesitate to contact us. Our technical support and engineering teams are eager to assist you. Before use, each person who is to use a Model DFG-RS5 indicator should be fully trained in appropriate operation and safety procedures.

  • Page 4: Overview

    1.2 General Overview The DFG-RS5 is a universal indicator designed for displaying measurements from interchangeable Omega Series RLC and RTQ sensors. These sensors can be handheld or mounted to a fixture or test stand for more sophisticated testing requirements. These sensors may be used with the DFG-RS5 or DFG-RS3 indicators. They may be disconnected from one indicator and connected to another without the need for re-calibration or re-configuration.
  • Page 5 The resolution may be different for some sensors depending on which indicator is used. For example, a Series RLC01 force sensor will display finer resolution when connected to a DFG-RS5 indicator than when connected to a DFG-RS3 indicator. Resolution information is shown in the sensors’ user’s guide.

  • Page 6: Power

    2 POWER The DFG-RS5 is powered either by an 8.4V NiMH rechargeable battery or by an AC adapter. Since these batteries are subject to self discharge, it may be necessary to recharge the unit after a prolonged period of storage.

  • Page 7: Setup

    Model DFG-RS5 Digital Force / Torque Indicator User’s Guide off), a message appears, “BATTERY VOLTAGE TOO LOW. POWERING OFF”. A 4-tone audio indicator will sound and the indicator will power off. The indicator can be configured to automatically power off following a period of inactivity. Refer to the Other Settings section for details.
  • Page 8 3.3 Mounting to a plate The DFG-RS5 can be mounted to a plate with four thumb screws fastened into the appropriate holes in the rear half of the housing. Refer to the Dimensions section for detailed hole information and locations.

  • Page 9: Home Screen And Controls

    Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 4 HOME SCREEN AND CONTROLS 4.1 Home Screen Name Description Measurement – indicates compression direction (for force sensors) direction – indicates tension direction (for force sensors) indicator – indicates clockwise direction (for torque sensors) –...
  • Page 10 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide Torque units: lbFft – Pound-foot lbFin – Pound-inch ozFin – Ounce-inch kgFm – Kilogram-meter kgFmm – Kilogram-millimeter gFcm – Gram-centimeter Nm – Newton-meter Ncm – Newton-centimeter Nmm – Newton-millimeter Note: not all sensor models display all the above units. Refer to the capacity / resolution table for the respective sensor series for details.
  • Page 11 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 4.2 Controls Primary Secondary Label Primary Function Label Secondary Function Powers the indicator on and off. ENTER Various uses, as described in the Press briefly to power on, press and following sections.

  • Page 12: Digital Filters

    Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 5 DIGITAL FILTERS Digital filters are provided to help smooth out the readings in situations where there is mechanical interference in the work area or test sample. These filters utilize the moving average technique in which consecutive readings are pushed through a buffer and the displayed reading is the average of the buffer contents.
  • Page 13 Note: Set point indicators and outputs reference the displayed reading, not necessarily the current live load. 6.3 Set Point Outputs Schematic Diagram 6.4 Using Set Points to Control an Omega MTS300 Test Stand When using set points to stop/cycle an MTS300 test stand, the upper and lower set points must be set to opposite measuring directions.

  • Page 14: Operating Modes

    “OVER” to indicate an overload. A continuous audible tone will be sounded until the MENU key has been pressed or the load has been reduced to a safe level. Five operating modes are possible with the DFG-RS5 indicator. To cycle between the modes, press MODE while in the home screen.
  • Page 15 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide After the parameters have been configured and the menu has been exited, press MODE until AVG is displayed. Then press ZERO. Average mode is now armed, and the averaging sequence will commence when the trigger load has occurred.

  • Page 16: Data Memory And Statistics

    8 DATA MEMORY AND STATISTICS The DFG-RS5 has a storage capacity of 1,000 data points. Readings may be stored, viewed, and output to an external device. Individual, or all, data points may be deleted. Statistics are calculated for the data presently in memory.
  • Page 17 Press ENTER to output data to an external device. The display will show, “SENDING DATA…”, then “DATA SENT”. If there was a problem with communication, the display will show, “DATA NOT SENT”. Saved data can be downloaded by some Omega data collection programs. Refer to their respective user’s guides for details.

  • Page 18: Communications

    Select the baud rate as required for the application. It must be set to the same value as the receiving device. When communicating with an Omega test stand controller, the baud rate must be set to 9,600. 9.1.2 Data Format Select the desired data format.
  • Page 19 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide Numeric Only Output format includes the value only. Polarity same as above. Invert Polarity Compression/clockwise values have negative polarity, tension/counter-clockwise values have positive polarity. May be selected in addition to the Numeric + Units / Numeric Only selection.
  • Page 20 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide DATA KEY RS232/USB Output Mitutoyo Output Memory Storage Three options are available: Selection Function when pressing DATA RS232/USB Output Outputs data via the serial and USB ports Mitutoyo Output Outputs data via Mitutoyo (Digimatic) through the serial port...
  • Page 21 9.6 Command Set / Gauge Control Language 2 (GCL2) The DFG-RS5 may be controlled by an external device through the RS-232 or USB channel. The following is a list of supported commands and their explanations. All commands must be terminated with a Carriage Return character or with a Carriage Return/Line Feed combination.
  • Page 22 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide Switch unit to Newton-millimeter Basic Functions (available measurement directions depend on the sensor used) Current mode (real time mode) for primary reading Peak Tension mode for primary reading Peak Compression mode for primary reading...

  • Page 23: Calibration

    Model DFG-RS5 Digital Force / Torque Indicator User’s Guide External Trigger Enable high level-triggered External trigger mode Enable low level-triggered External trigger mode ETHL Enable reading captured on a high to low transition ETLH Enable reading captured on a low to high transition...
  • Page 24 The sensor can be calibrated at up to 10 points in each direction. Enter the number of calibration points for each direction (compression and tension or clockwise and counter-clockwise). At least one point must be selected for each direction. For single-direction sensors such as Omega’s Series RLC02, only one direction is allowed.
  • Page 25 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide CALIBRATION CALIBRATION OFFSET OFFSET Sensor passed Sensor failed Analog passed Analog failed If failed: 5. The following screen appears after the offsets have been calculated: CALIBRATION COMPRESSION Attach necessary weight fixtures, then press ENTER.
  • Page 26 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 9. The display appears as follows: CALIBRATION COMPRESSION Apply load 1 OF 5 Enter load: 2.000 lbF Press ENTER. Use the UP and DOWN keys to adjust the load value as required. The load values default to even increments, as indicated by the previously entered number of data points (even increments are recommended for best results).

  • Page 27: Passwords

    Model DFG-RS5 Digital Force / Torque Indicator User’s Guide CALIBRATION Load not stable. Please try again. Ensure that the load is not swinging, oscillating, or vibrating in any manner. Then try again. CALIBRATION COMPRESSION Load too low. Please try again.
  • Page 28 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide PASSWORDS 2 Zero Key Data Key Clear Key Power Key 11.1 Calibration Password Select Calibration from the sub-menu. The display appears as follows: CALIBRATION PASSWORD Disabled Enabled Set Password (0000 – 9999) 5000 To set the password, select Enabled, then Set Password.

  • Page 29: Other Settings

    If the password has been misplaced, it can be reset. Press ENTER to generate a request code. The request code must be supplied to Omega, who will then provide a corresponding authorization code. Enter the activation code to disable the password.
  • Page 30 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 12.2 Backlight Although the backlight may be turned on and off at any time by pressing the BACKLIGHT key, there are several available initial settings (applicable upon powering on the indicator). To access these settings, select Backlight from the menu.
  • Page 31 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 12.5 Initial settings This section is used to configure the initial settings upon powering on the indicator. The initial units of measurement and the primary reading measurement mode may be configured. To access these settings, select Initial Settings from the menu.

  • Page 32: Specifications

    Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 13 SPECIFICATIONS 13.1 General Accuracy: ±0.1% of full scale + sensor Sampling rate: 7,000 Hz Power: AC or rechargeable battery. Low battery indicator appears when battery level is low, and indicator powers off automatically when power reaches critical stage.
  • Page 33 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide 13.2 Factory Settings Parameter Setting Set points Upper Disabled (defaults to 80% of full scale, C/CW, when enabled) Lower Disabled (defaults to 40% of full scale, C/CW, when enabled) Filters Current...
  • Page 34 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide...
  • Page 35 Model DFG-RS5 Digital Force / Torque Indicator User’s Guide M-5251/1017...

This manual is also suitable for:

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