Mark-10 7i User Manual
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Mark-10 7i User Manual

Digital force / torque indicator
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7i
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DIGITAL FORCE / TORQUE INDICATOR
User's Guide

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  • Page 1 Model DIGITAL FORCE / TORQUE INDICATOR User’s Guide...
  • Page 2 Our technical support and engineering teams are eager to assist you. Before use, each person who is to use the 7i should be fully trained in appropriate operation and safety procedures. TABLE OF CONTENTS OVERVIEW ............2...

  • Page 3: Overview

    Indicator accuracy must be combined with sensor accuracy to determine the total accuracy of the system. Since sensors may be used with either the 7i, 5i or 3i indicator, the accuracy of the indicator being used must be identified and taken into account, as follows:...
  • Page 4 The resolution may be different for some sensors depending on whether a 7i, 5i, or 3i indicator is being used. For example, a Series R01 force sensor will display finer resolution when connected to a 7i indicator than when connected to a 3i indicator.

  • Page 5: Power

    2 POWER The 7i is powered either by an 8.4V NiMH rechargeable battery or by an AC adapter. Since the batteries are subject to self discharge, it may be necessary to recharge the unit after a prolonged period of storage.

  • Page 6: Setup

    3.1 Connecting a sensor The Plug & Test connector must be inserted into the receptacle of the 7i, 5i, or 3i indicator with the side marked “Plug & Test Technology” facing up (see Fig. 3.1). When fully inserted, the connector will lock into place with a “click”.
  • Page 7 3.3 Mounting to a plate The 7i 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 8: Home Screen And Controls

    Model 7i 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 9 Model 7i Digital Force / Torque Indicator User’s Guide N – Newton kN – Kilonewton mN – Millinewton Torque units: lbFft – Pound-foot lbFin – Pound-inch ozFin – Ounce-inch kgFm – Kilogram-meter kgFmm – Kilogram-millimeter gFcm – Gram-centimeter Nm – Newton-meter Ncm –...

  • Page 10: Digital Filters

    Model 7i Digital Force / Torque Indicator User’s Guide MODE Toggles between measurement Navigates down through the menu modes. (DOWN) and sub-menus. DATA Stores a value to memory, transmits DELETE Enables and disables Delete mode the current reading to an external...

  • Page 11: Set Points

    Model 7i Digital Force / Torque Indicator User’s Guide Current Reading – Applies to the peak capture rate of the instrument. Displayed Reading – Applies to the primary reading on the display. Available settings: 1,2,4,8,16,32,64,128,256,512,1024,2048,4096,8192. It is recommended to keep the current reading filter at its lowest value for best performance, and the displayed reading filter at its highest value for best visual stability.

  • Page 12: Break Detection

    6.4 Using Set Points to Control a Mark-10 Motorized Test Stand When using set points to stop/cycle Mark-10 motorized test stands, the upper and lower set points must be set to opposite measuring directions. Both set points must be set, even if the intended application is to stop/cycle at only one of the set points.
  • Page 13 Model 7i Digital Force / Torque Indicator User’s Guide To enable Break Detection and configure the automatic functions, select Break Detection from the main menu. The display appears as follows: BREAK DETECTION Disabled Enabled-End Test Enabled-Abort + Break Settings + Auto Output + More Select “+ More”...

  • 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. Several operating modes are possible with the 7i, depending on whether force or torque sensors are used, as follows:...
  • Page 15 Model 7i Digital Force / Torque Indicator User’s Guide External Trigger (ET) Data Capture (CAPT) Peak (2PK) To cycle between the modes, press MODE while in the home screen. Refer to the following sections for details for each mode: 8.1 Real Time (RT) The primary reading corresponds to the live measured reading.
  • Page 16 Output Pin Automatically toggle the SP1, SP2, or SP3 pins (active low). If not required, select “NONE”. To stop a Mark-10 motorized test stand when averaging is completed, specify SP2 if moving in the tension/counter-clockwise direction, or SP1 for the compression/clockwise direction.
  • Page 17 “snapshot” view of applied forces. It is possible to capture the reading with a normally open contact (high to low transition of the trigger signal) or a normally closed contact (low to high transition). Certain Mark-10 motorized test stands may be automatically stopped when an external trigger has occurred.
  • Page 18 0.1 uF USER - SUPPLIED GAUGE Note: Custom cabling is required to connect to a switch, or to connect a switch and a Mark-10 test stand simultaneously. 9.6 Data Capture (CAPT) This mode of operation is used to capture and store continuous data in the indicator’s memory. The capture frequency can be adjusted to accommodate quick-action as well as longer duration tests.
  • Page 19 Model 7i Digital Force / Torque Indicator User’s Guide START CONDITION Momentary HiLo Momentary LoHi * Maintained High Maintained Low + More Select “+ More” for additional options: START CONDITION 2 Start Load 3.500 lbFin * DATA Key Function Data capture is initiated when: Momentary HiLo...
  • Page 20 Model 7i Digital Force / Torque Indicator User’s Guide Note 2: Data capture may be manually stopped at any time by pressing the ZERO key. A message appears at the bottom of the screen: “CAPTURE CANCELLED”. The first or subsequent Data Capture sequences cannot occur until the ZERO key is pressed to arm data capture, or until the gauge is automatically re-armed (see the following sub-section for details).
  • Page 21 Model 7i Digital Force / Torque Indicator User’s Guide Peak readings will reference the first and second peaks – first peak on top, second peak below. Refer to the Home Screen & Controls section for details. Peak Settings See following sub-sections for details.

  • Page 22: Data Memory And Statistics

    10 DATA MEMORY AND STATISTICS The 7i has a storage capacity of 5,000 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 in memory.
  • Page 23 Model 7i Digital Force / Torque Indicator User’s Guide the desired reading and press DELETE. The letter “D” appears to the left of the record number, indicating that the indicator is in Delete mode, as follows: 0001 2.458 lbFin 0002 2.224 lbFin...

  • Page 24: Footswitch

    Model 7i Digital Force / Torque Indicator User’s Guide *** WARNING *** DATA IN MEMORY WILL BE LOST CANCEL POWER OFF If no option is selected, this screen will be displayed indefinitely, or until battery power has been depleted. 11 FOOTSWITCH...

  • Page 25: Coefficient Of Friction

    User’s Guide 12 COEFFICIENT OF FRICTION The 7i, with an appropriate force sensor, can determine the static and kinetic coefficients of friction (COF) between two materials through the Averaging and peak tension capture functions. The process for determining COF requires dragging a block of a known mass (usually 200 g) over a surface at a constant speed.

  • Page 26: Communications And Outputs

    Highest measured value must correspond to a maximum displayed reading of 500,000. 14 COMMUNICATIONS AND OUTPUTS Communication with the 7i indicator is achieved through the micro USB or 15-pin serial ports located at the bottom of the instrument, as shown in the illustration in the Power section. Communication is possible only when the indicator is in the main operating screen (i.e.
  • Page 27 Model 7i Digital Force / Torque Indicator User’s Guide DATA FORMAT Numeric + Units Numeric Only Invert Polarity Omit Polarity Selection Description Numeric + Units Output format includes the value and unit of measure. Compression/clockwise values have positive polarity, tension/counter-clockwise values have negative polarity.
  • Page 28 Model 7i Digital Force / Torque Indicator User’s Guide MITUTOYO BCD Disabled Enabled * Without Polarity With Polarity 14.3 Analog Output This output can be used for chart recorders, oscilloscopes, data acquisition systems, or any other compatible devices with analog inputs. The output produces ±1 volt at full scale of the instrument. The polarity of the signal is positive for compression and negative for tension.
  • Page 29 Model 7i Digital Force / Torque Indicator User’s Guide 14.5 I/O Connector Pin Diagram (DB-9HD-15 female) Pin No. Description Input / Output Signal Ground Tension / Counter-clockwise Output * Overload * RS-232 Receive Input RS-232 Transmit Output +12V DC Input / Output...
  • Page 30 Model 7i Digital Force / Torque Indicator User’s Guide 14.6 Command Set / Gauge Control Language 2 (GCL2) The 5i indicator may be controlled by an external device through the RS-232 or USB channels. The following is a list of supported commands and their explanations. All commands must be terminated by a CR (Carriage Return) character, 0x0D, or a CR-LF (Carriage Return –...
  • Page 31 Model 7i Digital Force / Torque Indicator User’s Guide Filters FLTPn Digital filter for displayed readings FLTCn Digital filter for current readings n= 0-10, filter = 2 , ex: n=0= no filter, n=10=1024 samples averaged Memory & Statistics Transmit all stored readings...

  • Page 32: Calibration

    Model 7i Digital Force / Torque Indicator User’s Guide Read product name Read model number Read firmware version number Read serial number Other Commands AOFFn Auto-shutoff. n=0-30 minutes. 0=auto shutoff disabled SAVE Save current settings in nonvolatile memory LIST List current settings and status 14.7 Command Responses...
  • Page 33 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 Mark-10’s Series R02, only one direction is allowed.
  • Page 34 Model 7i 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 35 Model 7i 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 36: Passwords

    Model 7i 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 37 Model 7i Digital Force / Torque Indicator User’s Guide PASSWORDS 2 DATA Key CLEAR Key POWER Key 16.1 Calibration Password Select Calibration from the sub-menu. The display appears as follows: CALIBRATION PASSWORD Disabled Enabled Set Password (0000 – 9999) To set the password, select Enabled, then Set Password. Use the UP and DOWN keys to increment and decrement the value, from 0 to 9999.

  • Page 38: 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 Mark-10 or a distributor, who will then provide a corresponding authorization code. Enter the activation code to disable the password.
  • Page 39 Model 7i Digital Force / Torque Indicator User’s Guide Selection Description Backlight to be off upon powering on the indicator. Backlight to be on upon powering on the indicator. Auto Backlight to be on upon powering indicator, but will shut off after a period of inactivity (as defined in the Automatic Shutoff sub-section).

  • Page 40: Specifications

    Model 7i Digital Force / Torque Indicator User’s Guide 17.6 Restore Default Settings Default factory settings can be restored by selecting Restore Defaults from the menu. The settings may be found in the Specifications section. The screen appears as follows:...
  • Page 41 Model 7i Digital Force / Torque Indicator User’s Guide 18.2 Factory Default 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...
  • Page 42 Model 7i Digital Force / Torque Indicator User’s Guide Keys Enabled Alerts Enabled Set Points Momentary Automatic Shutoff Enabled Set Minutes Backlight Auto Set Minutes Initial Settings Units Depends on sensor Mode Real Time Passwords All disabled 18.5 Dimensions (IN [MM])
  • Page 43 Model 7i Digital Force / Torque Indicator User’s Guide NOTES:...
  • Page 44 Model 7i Digital Force / Torque Indicator User’s Guide Mark-10 Corporation has been an innovator in the force and torque measurement fields since 1979. We strive to achieve 100% customer satisfaction through excellence in product design, manufacturing and customer support. In addition to our standard line of products we can provide modifications and custom designs for OEM applications.

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