Mark-10 M7-5, M7-012, M7-05, M7-100, M7-200 User manual

Series 7

DIGITAL FORCE GAUGES

User’s Guide

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Series 7 Digital Force Gauges User’s Guide

1

Thank you…

Thank you for purchasing a Mark-10 Series 7 digital force gauge, designed
for tension and compression testing applications from 0.12 lb to 1,000 lb
(0.5 N to 5,000 N) full scale. The Series 7 is an essential component of a
force testing system, typically also comprising a test stand, grips, and data
collection software.

With proper usage, we are confident that you will get many years of great
service with this product. Mark-10 force gauges are ruggedly built for many
years of service in laboratory and industrial environments.

This User’s Guide provides setup, safety, and operation instructions.
Dimensions and specifications are also provided. 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 the Series 7 force gauge
should be fully trained in appropriate operation and safety
procedures. Safety features provided by these force gauges may be
impaired if used in a manner not specified by Mark-10.

TABLE OF CONTENTS

OVERVIEW ........................................................... 2

POWER ................................................................. 3

SETUP .................................................................. 4

HOME SCREEN AND CONTROLS ..................... 5

DIGITAL FILTERS ................................................ 8

SET POINTS ......................................................... 9

BREAK DETECTION .......................................... 10

OPERATING MODES ......................................... 13

DATA MEMORY AND STATISTICS .................. 22

FOOTSWITCH .................................................... 24

COEFFICIENT OF FRICTION ............................ 25

CUSTOM UNIT ................................................... 26

COMMUNICATIONS AND OUTPUTS ............... 27

PASSWORDS ..................................................... 37

OTHER SETTINGS ............................................. 39

SPECIFICATIONS .............................................. 41

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Series 7 Digital Force Gauges User’s Guide

2

Qty.

Part No.

Description

M7-012 –

M7-20

M7-50 –

M7-100

M7-200 –

M7-500

1

12-1049

12-1049

12-1049

Carrying Case

1

08-1022

08-1022

08-1022

AC adapter body with US, EU, or UK prong

1

08-1026

08-1026

08-1026

Battery (inside the gauge)

1

G1024

G1024

G1031

Extension rod

1

G1026

G1026

G1033

Cone

1

G1025

G1025

G1032

Chisel

1

G1027

G1027

G1034

V-groove

1

G1029

G1029

G1036

Flat

1

G1028

G1038

G1035

Hook

1 - G1039

G1037

Coupling

1 - - - Thread adapter

1 - Certificate of calibration

1

09-1165

USB cable

-

USB driver, MESUR® Lite software, MESUR®gauge evaluation software, User’s Guide

1 OVERVIEW

1.1 List of included items

1.2 Safety / Proper Usage

Caution!

Note the force gauge’s capacity before use and ensure that the capacity is not exceeded.
Producing a force greater than 200% of the gauge’s capacity can damage the internal load cell. An
overload can occur whether the gauge is powered on or off.

Typical materials suitable for testing include many manufactured items, such as springs, electronic
components, fasteners, caps, films, mechanical assemblies, and many others. Items that should not be
used with the gauge include potentially flammable substances or products, items that can shatter in an
unsafe manner, and any other components that can present an exceedingly hazardous situation when
acted upon by a force.

The following safety checks and procedures should be performed before and during operation:

1. Never operate the gauge if there is any visible damage to the AC adapter or the gauge
itself.

2. Ensure that the gauge is kept away from water or any other electrically conductive liquids
at all times.

3. The gauge should be serviced by a trained technician only. AC power must be
disconnected and the gauge must be powered off before the housing is opened.

4. Always consider the characteristics of the sample being tested before initiating a test. A
risk assessment should be carried out beforehand to ensure that all safety measures have been
addressed and implemented.

5. Wear eye and face protection when testing, especially when testing brittle samples that
have the potential to shatter under force. Be aware of the dangers posed by potential energy that
can accumulate in the sample during testing. Extra bodily protection should be worn if a
destructive failure of a test sample is possible.

6. In certain applications, such as the testing of brittle samples that can shatter, or other
applications that could lead to a hazardous situation, it is strongly recommended that a machine
guarding system be employed to protect the operator and others in the vicinity from shards or

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Series 7 Digital Force Gauges User’s Guide

3

Serial connector

USB connector

Power input jack

debris.

7. When the gauge is not in use, ensure that the power is turned off.

2 POWER

The gauge 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. Plug the accompanying charger into the AC outlet and insert the charger plug into the
receptacle on the gauge (refer to the illustration below). The battery will fully charge in approximately 8
hours.

Caution!

Do not use chargers or batteries other than supplied or instrument damage may occur.

If the AC adapter is plugged in, an icon appears in the lower left corner of the display, as follows:

If the AC adapter is not plugged in, battery power drainage is denoted in a five-step process:

1. When battery life is greater than 75%, the following indicator is present:

2. When battery life is between 50% and 75%, the following indicator is present:

3. When battery life is between 25% and 50%, the following indicator is present:

4. When battery life is less than 25%, the following indicator is present:

5. When battery life drops to approximately 2%, the indicator from step 4 will be flashing.

Several minutes after (timing depends on usage and whether the backlight is turned on or off), a
message appears, “BATTERY VOLTAGE TOO LOW. POWERING OFF”. An audio tone will
sound and the gauge will power off.

The gauge can be configured to automatically power off following a period of inactivity. Refer to the Other
Settings section for details.

If battery replacement is necessary, it can be accessed by separating the two halves of the gauge. Refer
to the Setup section for details.

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3 SETUP

3.1 Mechanical Setup

3.1.1 Loading shaft orientation

In order to accommodate a variety of testing requirements, the orientation of the loading shaft may be set
up in either of the two positions shown below. In order to change the loading shaft orientation, loosen two
captive screws on the back side of the housing, separate the two housing halves, rotate one half 180
degrees, and reassemble. Contact between the two halves is made by spring pins and contact pads on
the printed circuit boards.

Load cell shaft up Load cell shaft down

3.1.2 Mounting to a plate

Proper mounting is important if attached to a fixture or test stand. The round steel insert with a hole in the
back of the housing is provided to withstand the load during a test. A mating dowel pin should be used
(see illustration below). Mounting plates on Mark-10 test stands include a dowel pin and clearance holes
for the four threaded holes located near the corners of the housing. These holes are designed to
accommodate screws in order to hold the gauge in place (Mark-10 test stands include a set of thumb
screws for gauge mounting). The screws must not be used for load bearing purposes. Failure to use a
dowel pin properly can result in a hazardous situation.

3.1.3 Mounting attachments to the gauge

The force gauge’s threaded loading shaft is designed to accommodate common grips and attachments
with female mounting holes. To mount a grip, gently thread it onto the shaft. Other mounting adapters are
also available to prevent rotation. Ensure that the grip or fixture is positioned to ensure axial load with
respect to the loading shaft of the force gauge. When using a grip, ensure that it secures the sample in
such a way that it is prevented from slipping out during a test, preventing a potential safety risk to the

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5

No.

Name

Description

These indicators are used throughout the display and menu.

Compression
Peak

The measured compression peak reading. This reading may be reset by
pressing ZERO or by powering the gauge off and on.

The measured tension peak. If the COF unit is selected, this represents the

the gauge off and on.

Primary reading
/ Kinetic COF

The current displayed force reading. When the COF unit is selected, this
reading represents the kinetic coefficient of friction upon completion of an

1 2 4 5 6 7 8

10

11

12

13 3 9

operator and others in the vicinity. If using a grip or fixture from a supplier other than Mark-10, ensure that
it is constructed of suitably rugged materials and components.

Do not use jam nuts or tools to tighten grips or attachments onto the shaft. Finger-tighten only.

3.2 Installing the USB driver

If communicating via USB, install the USB drivers available at:

Caution!

Install the USB driver before physically connecting the gauge to a PC with the USB cable.

Further instructions for configuring and using the gauge’s outputs are provided in the Communications
and Outputs section.

4 HOME SCREEN AND CONTROLS

4.1 Home Screen

Tension /

1

compression
indicator

2

Tension Peak /

3

Static COF

4

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- indicates a compression (push) direction

- indicates a tension (pull) direction

static coefficient of friction. May be reset by pressing ZERO or by powering

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Series 7 Digital Force Gauges User’s Guide

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Averaging sequence. See Operating Modes section for details.

Analog indicator to help identify when an overload condition is imminent. The

details.

The current unit of measurement. Abbreviations are as follows:

user-defined units must be enabled before they can be selected.

Break Detection
On/Off

The letter “B” appears if the Break Detection function is enabled. Refer to the
Break Detection section for details.

The current measurement mode. Abbreviations are as follows:

See Operating Modes section for details.

Number of

points

The number of stored data points in memory, up to 5,000. Displayed only if

Battery / AC

indicator

Either the AC adapter icon or battery power icon will be shown, depending on

If Auto Output has been enabled under Serial / USB Settings, this indicator

animated. See Communications and Outputs section for details.

Correspond to the programmed set points. Indicator definitions are as follows:

– the displayed value is less than the lower force limit

The programmed force limits. Typically used for pass/fail type testing. 1, 2, or

Set Points menu item.

bar increases either to the right or to the left from the midpoint of the graph.
Increasing to the right indicates compression load, increasing to the left

5 Load bar

6 Units

indicates tension load. If set points are enabled, triangular markers are
displayed for visual convenience. This indicator reflects the actual load, which
may not correspond to the primary reading (depends on operating mode).
The ZERO key does not reset the load bar. See Operating Modes section for

lbF – Pound-force
ozF – Ounce-force
kgF – Kilogram-force
gF – Gram-force
N – Newton
kN – Kilonewton
mN – Millinewton
COF – Coefficient of friction
XXXXX – User-defined unit (up to 5 characters)
Note: not all gauge capacities measure in all the above units. Refer to the
capacity / resolution table in the Specifications section for details. COF and

7

8 Mode

9

stored data

10

adapter

Automatic data

11

output indicator

High / low limit

12

indicators

13 Set points

RT – Real Time
PC – Peak Compression
PT – Peak Tension (corresponds to static COF)
A – Average (corresponds to kinetic COF)
ET – External Trigger
CAPT – Data Capture
2PK – 1

Memory Storage or Data Capture functions are used.

power conditions. Refer to the Power section for details.

is displayed. When automatic data output is occurring, the icon becomes

– the displayed value is greater than the upper force limit
– the displayed value is between the limits

no indicators may be present, depending on the configuration shown in the

st/2nd

Peak

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43

Primary Function

Secondary

Label

Secondary Function

Powers the gauge on and off. Press

home screen is displayed.

ENTER

Various uses, as described in the

ZERO

Zeroes the primary reading and
peaks.

(UP)

Navigates up through the menu and
sub-menus.

MENU

Enters the main menu.

ESCAPE

Reverts one step backwards through
the menu hierarchy.

MODE

Toggles between measurement
modes.

(DOWN)

Navigates down through the menu
and sub-menus.

DATA

Stores a value to memory, transmits

data output, depending on setup.

DELETE

Enables and disables Delete mode

functions.

UNITS

Toggles between measurement

DIRECTION

Reverses the display during

menu items.

CLEAR

Zeroes the peak readings, but
retains the primary reading.

N/A

N/A

4.2 Controls

briefly to power on, press and hold
to power off. Active only when the

the current reading to an external
device, and/or initiates automatic

units.

4.3 Menu navigation basics

Most of the gauge’s various functions and parameters are configured through the main menu. To access
the menu press MENU. Use the
denoted with clear text over a dark background. Press ENTER to select a menu item, then use

again to scroll through the sub-menus. Press ENTER again to select the sub-menu item.

For parameters that may be either selected or deselected, press ENTER to toggle between selecting and
deselecting. An asterisk (*) to the left of the parameter label is used to indicate when the parameter has
been selected.

For parameters requiring the input of a numerical value, use the
decrement the value. Press and hold either key to auto-increment at a gradually increasing rate. When
the desired value has been reached, press ENTER to save the change and revert back to the sub-menu
item, or press ESCAPE to revert back to the sub-menu item without saving. Press ESCAPE to revert one
step back in the menu hierarchy until back into normal operating mode.

Refer to the following sections for details about setting up particular functions and parameters.

and keys to scroll through the items. The current selection is

following sections.

while viewing stored data / shifts
cursor to the right for certain

calibration, and toggles between
tension and compression directions
while configuring set points and other

and

and keys to increment or

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8

DIGITAL FILTERS

1

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. By varying the length of the buffer, a variable smoothing effect can be achieved. The selection
of 1 will disable the filter since the average of a single value is the value itself.

To access digital filter settings, select Filters from the menu. The display appears as follows:

(1 = Fastest)

Current Reading
1
Displayed Reading

Two filters are available:

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.

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9

SET POINTS

3.500 lbF

6 SET POINTS

6.1 General Information

Set points are useful for tolerance checking (pass/fail), triggering an external device such as a motorized
test stand, or alarm indication in process control applications. Two limits, high and low, are specified and
stored in the non-volatile memory of the instrument and the primary reading is compared to these limits.
The results of the comparisons are indicated through the three outputs provided on the 15-pin connector,
thus providing “under”, “in range”, and “over” signaling. These outputs can be connected to indicators,
buzzers, or relays as required for the application.

6.2 Configuration

To configure set points, select Set Points from the menu. The screen appears as follows:

Upper Disabled
* Upper Enabled

5.000 lbF
Lower Disabled
* Lower Enabled

One, two, or none of the set points may be enabled. To toggle between the tension and compression
directions, press the DIRECTION key.

If two set points have been enabled, they are displayed in the upper left corner of the display. If only one
set point has been enabled, the word “OFF” appears in place of the value. If no set points have been
enabled, the upper left corner of the display will be blank.

When set points are enabled, the following indicators are shown to the left of the primary reading:

Note: Set point indicators and outputs reference the displayed reading, not necessarily the current live load.

– the displayed value is greater than the upper

force limit (NO GO HIGH)

– the displayed value is between the limits (GO)

– the displayed value is less than the lower force

limit (NO GO LOW)

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10

6.2.1 Set Point Outputs Schematic Diagram

6.3 Using Set Points to Control Mark-10 Motorized Test Stands

When using set points to stop/cycle crosshead motion on certain Mark-10 test stands, the upper set point
must always be a value in the tension direction, and the lower set point must always be a value in the
compression direction. Both set points must be set, even if the intended application is to stop/cycle at
only one of the set points. The opposite set point should be a value sufficiently large that it does not get
triggered during the course of the test.

For certain other Mark-10 test stands, the tension and compression directions are reversed.

7 BREAK DETECTION

The break detection function identifies when a sample has broken, clicked, slipped, or otherwise reached
a peak force and then fell by a specified percentage drop. Upon detection of the break, the gauge can
perform several automatic functions, depending on the mode in which break detection is enabled, as
follows:

1. Transmit the peak reading (Auto Output).

2. Save the peak value to memory (Auto Storage).

3. Zero the primary and peak readings (Auto Zero).

4. Toggle a pin (for example, to stop crosshead movement on a Mark-10 motorized test

stand).

Break detection functions and settings are configured from a central location, and apply to any mode in
which it is enabled. Refer to the Operating Modes section for details on configuring each mode.

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Function

Description

Arms the break detection function. When enabled, the letter “B” will appear on

Detect Stop Condition is specified.

Same as above, except applies to situations in which a premature break occurs
before the specified Stop Condition is reached.

Break Settings

Auto Output

Auto Storage

Automatically stores the peak reading to memory.

Auto Zero

Automatically zeroes the display following data transmission and/or storage.

BREAK DETECTION 2

BREAK DETECTION

+ More

7.1 Configuration

To enable Break Detection and configure the automatic functions, select Break Detection from the main
menu. The display appears as follows:

* Disabled

Enabled-End Test

Enabled-Abort
+ Break Settings
+ Auto Output

Select “+ More” for additional options:

* Auto Storage * Auto Zero Auto Zero Delay 3 sec.

Any combination of the above functions may be selected.

Enabled-End Test

Enabled-Abort

If tones are enabled, a tone will sound when the output, storage, and zero functions have occurred.

the home screen, between the Mode and Unit indicators. Refer to the Home
Screen and Controls section for details. Applies to modes in which a Break

Refer to the following sub-sections for details.

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12

Note:

simultaneously enabled in both devices.

Parameter

Description

RS232/USB Output

Automatically output the peak when the break (% Drop) is detected.

Mitutoyo Output

Automatically output the peak when the break (% Drop) is detected.

Automatically toggle the SP1, SP2, or SP3 pins (active low). If not required, select

whichever condition occurs first.

Threshold

Sets the percentage of full scale at which the break detection function becomes

Available settings: 1–90%, in 1% increments until 5%, 5% increments thereafter.

% Drop

Sets the percentage drop from the peak reading at which the break is detected.
Available settings: 5%–90% of peak, in 5% increments.

Auto Zero

Sets the time delay before the primary and peak readings are zeroed. Auto zero

increments.

AUTO OUTPUT

BREAK DETECTION

7.2 Break Settings

Select Break Settings from the Break Detection menu to configure the settings. The display appears as
follows:

SETTINGS

Threshold: 5 %
% Drop: 50 %

active. This threshold is provided to ignore peaks that can occur during sample
loading and unloading.

Delay

can be disabled if required. Refer to the Auto Output Settings sub-section for
details. Available settings: 1–10 sec. in 1 sec. increments, and 10–60 sec. in 5 sec.

When using a Series 7 gauge with an ESM303, ESM303H, or ESM1500 equipped with Break

Detection, enable the function in either the test stand or the instrument. The function will not work if

7.3 Auto Output Settings

Scroll to Auto Settings in the Break Detection menu and press ENTER to configure the auto output
settings. Any combination may be selected. The display appears as follows:

SETTINGS

RS232/USB Output
Mitutoyo Output
Output Pin: NONE

“NONE”. To stop certain Mark-10 test stands when a break occurs, specify SP2 if

Output Pin

the break is in the tension (upwards) direction, or SP1 for the compression
(downwards) direction.
Note: Because the same pins are also used for set points, the stand will stop at

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AVERAGE MODE

Output Pin: NONE

8 OPERATING MODES

Caution!

In any operating mode, if the capacity of the instrument has been exceeded by more than 110%,
the display will show “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 Series 7 gauges, as follows:

- Real Time (RT)

- Peak Compression (PC)

- Peak Tension / Static Coefficient of Friction (PT)

- Average Mode / Kinetic Coefficient of Friction (AVG)

- External Trigger (ET)

- Data Capture (CAPT)

st/2nd

- 1

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.

Peak (2PK)

8.2 Peak Compression (PC)

The primary reading corresponds to the peak compression reading observed. If the actual force
decreases from the peak value, the peak will still be retained in the primary reading area of the display.
Pressing ZERO will reset the value.

8.3 Peak Tension / Static Coefficient of Friction (PT)

This is the same as Peak Compression, but for tension readings. If the COF unit is selected, the reading
in this mode represents the static coefficient of friction.

Note: The static COF is always displayed as the peak tension value in the upper right corner of the
display.

8.4 Average Mode / Kinetic Coefficient of Friction (AVG)

Average mode is used to obtain an average force reading over time. This reading also represents the
kinetic coefficient of friction, if the COF unit is selected. Applications include measurement of peel force,
COF, muscle strength, frictional force, and other tests requiring time-averaged readings.

Before the parameters of Average Mode can be configured, it must be enabled. To do so, select Average
Mode from the menu, scroll to Enabled and press ENTER. The display appears as follows:

Disabled
* Enabled
Stop at Force
+ Settings
+ Auto Settings

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Parameter

Description

The minimum force required to start the averaging sequence. Toggle between

active.

The time delay, after the trigger force, before the averaging sequence

Available settings: 0.0 – 300.0 sec., in 0.1 sec. increments

The time duration of the averaging sequence. This setting is ignored when Stop

Available settings: 0.1 – 300.0 sec., in 0.1 sec. increments

AUTO SETTINGS

5 sec.

AVERAGE MODE SETTINGS

5.0 sec.

The averaging function operates in one of two ways:

1. Averaging occurs between the trigger force and defined time limit, as illustrated below:

2. Averaging occurs only while above the trigger force. As the force drops back down to this

trigger, averaging stops. To enable this function, scroll to Stop at Force and press ENTER.

Select Settings to configure Trigger Force, Initial Delay, and Averaging Time:

Trigger Force

Initial Delay

Averaging Time

Trigger Force

or

Start / Stop Force

Initial Delay

Averaging Time

1.00 lbF

1.0 sec.

compression and tension directions by pressing the DIRECTION key. Initial delay
follows the trigger force. If Stop at Force is enabled, this parameter is referred to
as Start / Stop Force, denoting the minimum force for which averaging will be

commences.

at Force is enabled, unless the 300 sec. limit is reached.

Upon completion of an averaging sequence, several automatic functions can occur, as configured in the
Auto Settings section:

* RS232/USB Output
* Mitutoyo Output
* Memory Storage
* Auto Zero
Auto Zero Delay

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Parameter

Description

RS232/USB
Output

Automatically output the average via RS-232 or USB at the completion of the
averaging sequence.

Automatically output the average via Mitutoyo (Digimatic) at the completion of the
averaging sequence.

Memory Storage

Automatically store the average at the completion of the averaging sequence.

Automatically zero the reading at the completion of the averaging sequence. This
re-arms the gauge for a new averaging sequence as if ZERO has been pressed.

The amount of time before the auto-zero occurs, in seconds:

increments.

Automatically toggle the SP1, SP2, or SP3 pins (active low). If not required, select

whichever condition occurs first.

Step

Status

Description

1

TRIG WAIT

The trigger force has not yet occurred.

2

INIT DLY

The initial delay is currently taking place.

3

AVERAGING

The gauge is collecting readings. The status will be flashing until averaging has
been completed.

4

AVRG DONE

Averaging has been completed. The average force is displayed in the primary
reading.

EXTERNAL TRIGGER

Mitutoyo Output

Auto Zero

Auto Zero Delay

Output Pin

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 force has occurred. The current status of the averaging sequence is displayed below the
primary reading, as follows:

At the completion of the averaging sequence, the peak values are retained until ZERO is pressed.
Another averaging sequence may be started after ZERO has been pressed (or auto-zeroed). To exit
Average mode, press MODE and select the desired measuring mode.

8.5 External Trigger (ET)

Available settings: 1-10 sec., in 1 sec. increments, and 10-60 sec., in 5 sec.

“NONE”. To stop a Mark-10 test stand when averaging is completed, specify SP2
if moving in the tension (upwards) direction, or SP1 for the compression
(downwards) direction.
Note: Because the same pins are also used for set points, the stand will stop at

This mode of operation is useful for measuring electrical contact activation force as well as
synchronization of multiple instruments for a “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 test stand may be automatically stopped when an
external trigger has occurred.

Before the parameters of External Trigger Mode can be configured, it must be enabled. To do so, access
the main menu, select External Trigger, scroll to one of the four available options and press ENTER.
The options are as follows:

* Disabled
Momentary Hi->Lo
Momentary Lo->Hi
Maintained High
Maintained Low
+ More

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Option

Description

Momentary High  Low

The display will freeze the captured reading until ZERO is pressed. Applies
to a high to low transition of the trigger signal.

Momentary Low  High

The display will freeze the captured reading until ZERO is pressed. Applies
to a low to high transition of the trigger signal.

Maintained High

The display will show the captured reading only for as long as a high signal
is maintained.

Maintained Low

The display will show the captured reading only for as long as a low signal
is maintained.

Auto Settings

Functions exactly as described in Section 5.4. These parameter values are
shared between Averaging and External Trigger modes.

Output Pin

Automatically toggle the SP1, SP2, or SP3 pins (active low). If not required,

stop at whichever condition occurs first.

EXTERNAL TRIGGER 2

Select “+ More” for additional options:

+ Auto Settings
Output Pin: NONE

After the parameters have been configured and the menu has been exited, press MODE until ET is
displayed. External Trigger mode is now armed. Refer to the pin diagram in the Communications and
Outputs section for connection information.

To exit External Trigger mode, press MODE and select the desired measuring mode.

8.5.1 External Trigger Schematic Diagram

select “NONE”. To stop certain Mark-10 test stands when an external
trigger occurs, specify SP2 if moving in the tension (upwards) direction, or
SP1 for the compression (downwards) direction.

Note: Because the same pins are also used for set points, the stand will

Note: Custom cabling is required to connect to a switch, or to connect a switch and a Mark-10 test stand

simultaneously.

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Function

Description

Enabled

If enabled, CAPT appears as one of the operating modes.

Period

The capture period may be adjusted by pressing the and keys to change

Fraction of Seconds: 0.00007-0.99995, in 0.00007 (70 μS) increments.

Start Condition

Auto Settings

START CONDITION 2

START CONDITION

+ More

DATA CAPTURE

+ Auto Settings

8.6 Data Capture (CAPT)

This mode of operation is used to capture and store continuous data in the gauge’s memory. The capture
frequency can be adjusted to accommodate quick-action as well as longer duration tests. Saved data can
be downloaded in bulk via USB or RS-232.

8.6.1 Configuration

After Data Capture has been enabled, it may be selected by pressing the MODE key until CAPT is
displayed. The display appears as follows:

* Enabled
Period (H:M:S.x)
00 :00 :00 .00007
+ Start Condition
+ Stop Condition

the value of the hours (H), minutes (M), seconds (S), and fractions of seconds (x)
fields. Press the

Available settings: Hours: 0-24, Minutes: 0-59, Seconds: 0-59,

key to advance to the next field.

See following sub-sections for details.

Note: For best performance, it is recommended to keep the current reading filter at its lowest value. See
Digital Filters section for details.

8.6.2 Start Condition

Data capture is initiated when the Start Condition has been triggered. Several triggers are available, as
shown below:

Momentary HiLo
Momentary LoHi
* Maintained High
Maintained Low

Select “+ More” for additional options:

Start Force

3.500 lbF
* DATA Key

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Function

Data capture is initiated when:

Momentary HiLo

Momentary LoHi

Maintained High

Maintained Low

Start Force

The desired trigger force is reached. Toggle between compression and tension
directions by pressing the DIRECTION key.

DATA Key

The DATA key is manually pressed.

Function

Data capture terminates when:

Samples

The desired number of samples (data points) has been captured.

Stop Force

The desired force has been reached.

Memory Full

5,000 data points have been captured.

DATA Key

The DATA key is manually pressed.

STOP CONDITION

An external trigger occurs.

See External Trigger sub-section for details for each of these functions.

8.6.3 Stop Condition

Data capture is automatically terminated when the Stop Condition has been reached. Several conditions
are available, as shown below:

* Samples: 10
Stop Force

2.500 lbF
Memory Full
DATA Key

When data capture has stopped, the data may be automatically transmitted in bulk to a PC application
(not supported by Mark-10 data collection software). Data may also be transmitted manually through the

Memory section.

Note 1: If the Stop Condition does not occur, data capture stops automatically when the memory

is full.

Note 2: Data capture may be manually stopped at any time by pressing the ZERO key. A
message will appear 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). If another
Data Capture sequence is initiated before the memory is cleared, these data points are appended to the
existing data stored in memory.

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Function

Description

Transmit

Transmit all saved data via USB or RS-232.

XMIT & Clear Mem

Transmit all saved data via USB or RS-232, and clear the memory.

Re-Arm

Re-arm the gauge for the next Data Capture sequence.

FIRST/SECOND PEAK

* Auto Zero

AUTO SETTINGS

8.6.4 Auto Settings

The following functions can occur automatically upon termination of data capture:

Transmit
XMIT & Clear Mem
Re-Arm

8.7 First / Second Peak (2PK)

This function is designed to accurately capture first and second peaks which can occur in materials
testing and other applications.

8.7.1 Configuration

Several functions can be performed automatically upon detection of the second peak:

1. Transmit the first peak reading and/or…

2. Transmit the second peak reading and/or…

3. Save the first peak value to memory and/or…

4. Save the second peak value to memory and/or…

5. Zero the peak readings and/or…

6. Toggle an output pin

These automatic functions can help automate and expedite testing processes. If tones are enabled, an
audible tone will sound when the output, storage, and zero functions have occurred. In order for First /
Second Peak detection to be active, the appropriate operating mode must be selected. See the
Operating Modes section for details. The display appears as follows:

* Enabled
+ Peak Settings
+ Auto Output
* Auto Store PK1
* Auto Store PK2

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Function

Description

Enabled

If enabled, 2PK appears as one of the operating modes. In the main display, the

second peak below. Refer to the Home Screen & Controls section for details.

Peak Settings

Auto Output

Auto Store PK1

Automatically stores the first peak reading to memory.

Auto Store PK2

Automatically stores the second peak reading to memory.

Auto Zero

Automatically zeroes the display following data transmission and/or storage.

Threshold 1

Sets the percentage of full scale at which the first/second peak detection

1% increments between 1–5%, and in 5% increments between 5–90%.

% (Percentage) Drop 1

Identifies the first peak via detection of a specified percentage drop from
peak. Available settings: 5–95% of peak, in 5% increments.

Threshold 2

Same as Threshold 1, but refers to a percentage increase above the load
associated with the first peak percentage drop.

% (Percentage) Drop 2

Same as Percentage Drop 1 but for the second peak.

Auto Zero Delay

Sets the time delay before the peak readings are zeroed. Available settings:
1–10 sec. in 1 sec. increments, and 10–60 sec. in 5 sec. increments.

PEAK SETTINGS

3 sec.

Any combination of the above functions may be selected.

Peak readings will reference the first and second peaks – first peak on top,

See following sub-sections for details.

8.7.2 Peak Settings

The display appears as follows:

Threshold 1: 5 %

% Drop 1: 10 %
Threshold 2: 5 %
% Drop 2: 10 %
Auto Zero Delay

feature becomes active. This threshold is provided to ignore peaks that can
occur during sample loading and unloading. Available settings: 1–90%, in

Thresholds and percentage drops are illustrated below:

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Parameter

Description

RS232/USB Output

Automatically output the selected peak(s) after the 2nd peak is detected.

Mitutoyo Output

Automatically output the selected peak(s) after the 2nd peak is detected.

First Peak

Automatically output the first peak.

Second Peak

Automatically output the second peak.

Output Pin

Automatically toggle the SP1, SP2, or SP3 pins (active low). If not required, select

whichever condition occurs first.

AUTO OUTPUT

8.7.3 Auto Output Settings

Scroll to Auto Output Settings and press ENTER to select the desired automatic outputs. Select RS­232/USB and/or Mitutoyo outputs, and select First and/or Second peaks, and an Output Pin, if desired.
The display appears as follows:

SETTINGS RS232/USB Output Mitutoyo Output First Peak Second Peak Output Pin: NONE

“NONE”. To stop certain Mark-10 test stands when a 1st/2nd peak capture
sequence is completed, specify SP2 if moving in the tension (upwards) direction,
or SP1 for the compression (downwards) direction.
Note: Because the same pins are also used for set points, the stand will stop at

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0001 2.458 lbF

0007 2.042 lbF

MEMORY

Clear All Data

9 DATA MEMORY AND STATISTICS

Series 7 gauges have 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.

To enable memory storage, select DATA Key from the menu, then scroll to Memory Storage and press
ENTER. Then exit the menu. In the home screen, the data record number 0000 appears below the
primary reading. Press DATA at any time to save the displayed reading. The record number will
increment each time DATA is pressed. If DATA is pressed when memory is full the message “MEMORY
FULL” will be flashed at the bottom of the display and a double audio tone will be sounded.

To view, edit, and output stored readings and statistics, select Memory from the menu. The screen
appears as follows:

View Data

View Statistics
Output Data
Output Statistics
Output Data & Stats

9.1 View Data

All the saved data points may be viewed. The record number is displayed, along with the corresponding
value and currently set unit of measurement. Any readings may be deleted individually. To do so, scroll to
the desired reading and press DELETE. The letter “D” appears to the left of the record number, indicating
that the gauge is in Delete mode, as follows:

0002 2.224 lbF 0003 2.446 lbF 0004 1.890 lbF D 0005 2.098 lbF 0006 1.998 lbF

Press ENTER to delete the value. To exit Delete mode, press DELETE again. Any number of readings
may be individually deleted, however, all readings may also be cleared simultaneously. Refer to the Clear

All Data section for details.

9.2 Statistics

Statistical calculations are performed for the saved values. Calculations include number of readings,
minimum, maximum, mean, and standard deviation.

9.3 Output Data

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 transmitted to a data collection program such as MESUR
respective user’s guides for details.

TM

gauge. Refer to their

9.4 Output Statistics

Press ENTER to output statistics to an external device. The display will show, “SENDING STATS…”, then
“STATS SENT”. If there was a problem with communication, the display will show, “STATS NOT SENT”.

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*** WARNING ***

9.5 Output Data & Stats

Press ENTER to output data and statistics to an external device. The display will show, “SENDING
DATA”, then “SENDING STATS…”, then “DATA SENT”, then “STATS SENT”. If there was a problem with
communication, the display will show, “DATA NOT SENT” and/or “STATS NOT SENT”.

9.6 Clear All Data

Press ENTER to clear all data from the memory. A prompt will be shown, “CLEAR ALL DATA?”. Select
Yes to clear all the data, or No to return to the sub-menu.

Shortcut for clearing all data: In the main menu, highlight Memory and press DELETE. The same
prompt will be shown as above.

For output of data and/or statistics, RS-232 or USB output must be enabled. Data formatting is
<CR><LF> following each value. Units can be either included or excluded. Output of data via the Mitutoyo
output is possible; however, output of statistics is not. Refer to the Communications and Outputs
section for details.

Note: Data is not retained while the gauge is powered off. However, the gauge protects against
accidental or automatic power-off. If manually powering the instrument off, or if the inactivity time limit for
the Automatic Shutoff function has been reached, the following warning message appears:

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.

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Function

Description

Enabled

Press ENTER to enable, and an asterisk appears.

Step 1 / 2 / 3

Set the desired command.

may be found in the Communications and Outputs section.

Delay 1 / 2 / 3

Set the desired delay between commands.

increments.

Active Low (NO)

Normally open contact between pin and ground.

Active High (NC)

Normally closed contact between pin and ground.

FOOTSWITCH 2

FOOTSWITCH

+ More

10 FOOTSWITCH

This feature allows the indicator to execute up to three functions in sequence, separated by an optional
delay, when the External Trigger input (pin 14 on the I/O connector) transitions from a high level to a low
level, or from a low level to a high level. The ET input has an internal pull-up resistor. One suggested
method for triggering the footswitch sequence would be to provide a relay or contact closure to ground.

To enable the footswitch settings, select Footswitch from the menu. The display appears as follows:

Enabled
Step 1: NONE
Delay 1: 0 sec.
Step 2: NONE
Delay 2: 0 sec.

Select “+ More” for additional options:

Step 3: NONE
* Active Low (NO)
Active High (NC)

Available commands: ?, ?C, ?PT, ?PC, ?A, Z, CLR, PM, DATA Key, and NONE.
DATA Key simulates a press of the DATA key. Explanations for other commands

Available settings: 0 – 5 sec. in 1 sec. increments, and 5 – 60 in 5 sec.

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COF

11 COEFFICIENT OF FRICTION

Series 7 gauges 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. The force required
to do so is divided by the weight of the block. For example, a force of 100 gF divided by 200 g equals 0.5
COF.

Although many COF testing applications require a sled weight of 200 g, the gauge allows the user to
change the sled weight to comply with other requirements. To modify the sled weight, select COF from
the menu. The display appears as follows:

Enabled
Sled Weight Unit
g
Sled Weight

200.0

Available sled weight settings: 10% to 100% of the gauge capacity

Motorized test stands and suitable fixtures are recommended for COF measurement applications.
Recommended products: ESM303 test stand, and G1086 COF fixture

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Function

Description

Enabled

Press ENTER to enable and an asterisk appears. After exiting the menu, the
custom unit appears as one of the available units.

Base Unit

Select any available standard unit.

Unit Name

allowed. If a disallowed name is entered, a warning message will appear.

Multiplier

Select a value relative to the base unit.

value must correspond to a maximum displayed reading of 500,000.

CUSTOM UNIT

1.000

12 CUSTOM UNIT

A user-defined unit of measurement may be configured for special applications. A base unit is specified,
along with a multiplier, and 5-character name. Typical applications:

1. To measure the torque produced by pressing on a lever in a mechanical assembly,
configure the multiplier based on the length of the lever, thereby converting a unit such as N into
Ncm.

2. To measure the pressure produced by a circular compression plate on a foam sample,
configure the multiplier based on the area of the plate, thereby converting a unit such as lbF into
psi.

To access this feature, select Custom Unit from the menu. The display appears as follows:

Enabled
Base Unit: lbF
Unit Name: UNITx
Multiplier

Specify up to 5 alphanumeric characters, using the key to advance to the next
character, and the

and keys to scroll through the available characters. The
character “_” refers to a space.
Note: Unit names with the same abbreviations as other standard units are not

Available values: 0.001 – 1,000
Note: Lowest value must correspond to a resolution of at least 0.00001. Highest

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Selection

Description

Numeric + Units

Output format includes the value and unit of measure. Compression values have
positive polarity, tension values have negative polarity.

Numeric Only

Output format includes the value only. Polarity same as above.

Invert Polarity

Compression values have negative polarity, tension values have positive polarity.
May be selected in addition to the Numeric + Units / Numeric Only selection.

Omit Polarity

Both directions are formatted with positive polarity. May be selected in addition to
the Numeric + Units / Numeric Only selection.

DATA FORMAT

SERIAL/USB SETTINGS

+ Auto Output

13 COMMUNICATIONS AND OUTPUTS

Communication with Series 7 force gauges 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 gauge is in the main operating screen (i.e. not in a menu or configuration area).

13.1 Serial / USB

To set up RS-232 and USB communication, select Serial/USB Settings from the menu. The screen
appears as follows:

* RS232 Selected
USB Selected
+ Baud Rate
+ Data Format

Select either RS-232 or USB input (output is always active for both the USB and RS-232 ports). RS-232
must be selected when communicating through a Mark-10 test stand controller. When communicating
from the gauge directly to a PC or data collector, either RS-232 or USB can be selected as required.
Press DATA to transmit individual data points or to commence an automatic output sequence (see
Automatic Output sub-section for details). Single point or continuous data may also be requested via
ASCII commands from an external device (see Command Set sub-section for details).

Communication settings are permanently set to the following:

Data Bits: 8
Stop Bits: 1
Parity: None

Other settings are configured as follows:

13.1.1 Baud Rate

Select the baud rate as required for the application. It must be set to the same value as the receiving
device. When communicating with a Mark-10 test stand controller, the baud rate must be set to 115,200.

13.1.2 Data Format

Select the desired data format. The screen appears as follows:

* Numeric + Units
Numeric Only
Invert Polarity
Omit Polarity

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MITUTOYO BCD

AUTO OUTPUT

13.1.3 Automatic Output

The gauge has the ability to output data continuously via RS-232 or USB. To enable automatic output,
select Auto Output from the Serial/USB Settings sub-menu. The screen appears as follows:

* Disabled
Enabled
Readings / sec.
10

Select Enabled to activate automatic output. The number of readings per second can be set to 1, 2, 5, 10, 25, 50, 125, or 250. The capabilities of the receiving device should be considered when selecting the data output rate.

After the settings have been saved, revert to the home screen. An icon appears in the lower left corner of
the display, as follows:
of data may be initiated by pressing DATA or by sending the appropriate ASCII command from an
external device (see Command Set sub-section for details). The icon will become animated, signaling
that automatic output is occurring. Press DATA again to end the data transmission.

13.2 Mitutoyo BCD settings

This indicates that automatic data output has been armed. Automatic output

This output is useful for connection to data collectors, printers, multiplexers, or any other device capable
of accepting Mitutoyo BCD data. Individual data points may be transmitted by pressing DATA or by
requesting it from the Mitutoyo communication device (if available). To enable Mitutoyo output, select the
desired format – either with polarity or without polarity. The screen appears as follows:

* Disabled
Enabled
* Without Polarity
With Polarity

13.3 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.

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Selection

Function when pressing DATA

RS232/USB Output

Outputs data via the serial and USB ports

Mitutoyo Output

Outputs data via Mitutoyo (Digimatic)

Memory Storage

Stores a reading to memory (refer to the Memory section for details)

Auto Zero

Automatically zero the reading as if the ZERO key has been pressed after the
reading is output and/or it is stored in memory.

Auto Zero Delay

The amount of time before the auto-zero occurs, in seconds: 1 – 10 seconds in 1
second increments, and 10 – 60 seconds in 5 second increments.

Input /

Output

1

Signal Ground

---

2 *

Tension Overload *

Output *

3

RS-232 Receive

Input

4

RS-232 Transmit

Output

5

+12V DC

Input / Output

6

Analog Output

Output

7 *

Compression Overload *

Output *

8

Mitutoyo Clock or
Output Bit 2 (mutually exclusive)

Output

9

Mitutoyo Data or
Output Bit 0 (mutually exclusive)

Output

10

Mitutoyo Request or
Input Bit 3 (mutually exclusive)

Input
11 **

Set Point Pin 1 (SP1)**

Output **

12 **

Set Point Pin 2 (SP2)**

Output **

13 **

Set Point Pin 3 (SP3)**

Output **

14

External Trigger or Footswitch
(mutually exclusive)

Input

15 *

Mitutoyo Ready or
Output Bit 1 (mutually exclusive) *

Output *

DATA KEY

5 sec.

13.4 DATA Key Functions

The DATA key can be configured to perform several functions. To configure the DATA key, select DATA
Key from the menu. The display appears as follows:

* RS232/USB Output
Mitutoyo Output
Memory Storage
* Auto Zero

Auto Zero Delay

Any combination of the above functions may be selected.

13.5 I/O Connector Pin Diagram (DB-15HD female)

* Maximum voltage: 40V.
** The output assignments depend on several factors described in the table below. Output functions
always reference the primary reading on the display, regardless of the current mode.

Pin No. Description

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Pin 11

(SP1)

Pin 12

(SP2)

Pin 13

(SP3)

Greater than or equal to upper set point

On

Off

Off

Between upper and lower set points

Off

Off

On

Less than or equal to lower set point

Off

On

Off

Greater than or equal to upper set point

Off

On

Off

Between upper and lower set points

Off

Off

On

Less than or equal to lower set point

On

Off

Off

Greater than or equal to upper set point, in compression

Off

On

Off

Between upper and lower set points

Off

Off

On

Greater than or equal to lower set point, in tension

On

Off

Off

Greater than or equal to upper set point, in tension

Off

On

Off

Between upper and lower set points

Off

Off

On

Greater than or equal to lower set point, in compression

On

Off

Off

Force

Upper and Lower Set Points are Compression

Upper and Lower Set Points are Tension

Upper Set Point is Compression, Lower Set Point is Tension

Upper Set Point is Tension, Lower Set Point is Compression

13.6 Command Set / Gauge Control Language 2 (GCL2)

Series 7 force gauges 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 – Line Feed) pair, where the Line
Feed, 0x0A, is ignored.

Request Readings
? Request the displayed reading (dependent on operating mode)
?C Request the current (real time) reading
?PT Request the peak tension reading (corresponds to static COF)
?PC Request the peak compression reading
?ET Request the reading obtained during the External trigger mode
?A Request the average reading obtained during the Average mode
(corresponds to kinetic COF)
?P1 Request 1

Units
LB Switch units to pound-force
OZ Switch units to ounce-force
KG Switch units to kilogram-force
G Switch units to gram-force
N Switch units to Newtons
MN Switch units to Milli-Newtons
KN Switch units to Kilo-Newtons
COF Switch units to Coefficient of Friction
CU Switch to user-defined custom unit
COFE Enable Coefficient of Friction unit
COFD Disable Coefficient of Friction unit
CUE Enable user-defined custom unit
CUD Disable user-defined custom unit

Basic Functions

CUR Select Current (real time) mode

st

peak reading

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PT Select Peak Tension mode
PC Select Peak Compression mode
FSPK Select First / Second Peak mode (must first be enabled in the menu)
CAPT Select Data Capture mode (must first be enabled in the menu)
CLR Clear peaks
Z Zero display and perform the CLR function

Filters
FLTPn Digital filter for displayed readings
FLTCn Digital filter for current readings
n= 0-10, filter = 2

Memory & Statistics
MEM Transmit all stored readings
STA Transmit statistics
CLRMEM Delete all stored readings from memory

Set Points

SPHD Disable high set point
SPLD Disable low set point
SPHn High set point. n=value (+ for compression, - for tension)
SPLn Low set point. n=value (+ for compression, - for tension)

USB/RS-232 Communication

FULL USB/RS-232 transmission with units
NUM USB/RS-232 transmission without units (only numeric values)
AOUTn Auto-transmit n times per second n=1, 2, 5, 10, 25, 50, 125, 250. 0=disabled

Note: n = 1 = yields 50 times per second. This is provided for backward

compatibility with legacy gauges.
IPOLn Invert polarity of output. n=1=invert polarity. n=0=normal (default)
Note: Normal polarity is positive for compression and negative for tension.
OPOLn Omit polarity of output. n=1=omit polarity. n=0=include polarity (default)
Note: The “+” sign is always omitted. A “–“ sign is sent when polarity is enabled.

Mitutoyo Communication
MIT Enable Mitutoyo output
MITD Disable Mitutoyo output
POL Mitutoyo output with polarity (+ for compression, - for tension)
NPOL Mitutoyo output without polarity (absolute value)
PM Print/send data to a Mitutoyo-compatible device

Averaging

A Enable Average mode
AD Disable Average mode
AM Select Average mode (if enabled) for primary reading
TRFn Trigger force. n=value (+ for compression, - for tension)
DELn Initial delay. n=0.1-300.0 seconds
ATn Average time. n=0.1-300.0 seconds

External Trigger
ETH Enable high level-triggered External trigger mode
ETL 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
ETD Disable External trigger mode

n

, ex: n=0= no filter, n=10=1024 samples averaged

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Input / Output Bits

Sn Set output bit (open drain, pull to ground). n=0, 1, 2
Cn Clear output bit. n=0, 1, 2
Rn Read current status of output bit or level of input pin. n=0, 1, 2 ,3

Personality

RN Read product name
RM Read model number
RV Read firmware version number
RS 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

13.7 Command Responses

In response to a reading request command (those which begin with ‘?’) the gauge will return a string with
the load data, followed by a space, then the load unit (if enabled under the Serial/USB Settings  Data
format sub-menu). It will be terminated by a CR-LF pair.

Example return strings:

-0.486 lbF<CR><LF> 0.486 lbF of tension force

1.724 N<CR><LF> 1.724 N of compression force

The number of digits after the decimal point is dependent of the instrument’s capacity and resolution.

By default, the minus sign (-) indicates tension, and the absence of a sign indicates compression.
However, positive / negative polarity may be inverted or omitted under the Serial/USB Settings
Format sub-menu.

Following is an example LIST output:
V1.00;LBF;CUR;FLTC8;FLTP1;AOUT00;AOFF5;FULL;IPOL0;OPOL0;MIT;POL;B0

All fields are separated by “;”. The first field shows the firmware version, the last field shows the remaining
battery power (B0=full charge, B3=minimum power). All other fields show the status of settings and
features using the same abbreviations as the commands to set them.

Any detected errors are reported back by means of the following error codes:

*10 Illegal command
*11 Not applicable
*21 Invalid specifier
*22 Value too large
*51 Command string too long (25 characters maximum)

 Data

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Series 7 Digital Force Gauges User’s Guide

33

CALIBRATION

CALIBRATION

5

CALIBRATION

14 CALIBRATION

14.1 Initial Physical Setup

The gauge should be mounted vertically to a test stand or fixture rugged enough to withstand a load
equal to the full capacity of the instrument. Certified deadweights or master load cells should be used,
along with appropriate mounting brackets and fixtures. Caution should be taken while handling such
equipment.

14.2 Calibration Procedure

1. Select Calibration from the menu. The display appears as follows:

To invert the
display, press the
DIRECTION button,
then press ENTER.

2. Press DIRECTION to invert the display, if desired. ENTER to continue. The display
appears as follows:

Enter # cal points

(1 to 10)

Compression:

5

Tension:

The gauge can be calibrated at up to 10 points in each direction. Enter the number of calibration
points for each direction (compression and tension). At least one point must be selected for each
direction.

Note: To achieve the accuracy specification of ±0.1%, it is recommended to calibrate the gauge
at 5 or more even increments in both tension and compression directions. For example, a gauge
with capacity of 10 lbF should be calibrated at 2, 4, 6, 8, and 10 lb loads in each direction.

3. To escape the Calibration menu at any time, press ESCAPE. The display appears as
follows:

NOT COMPLETE

Cancel
Exit w/o saving

Selecting “Cancel” will revert back to the Calibration setup. Selecting “Exit w/o saving” will return
to the menu without saving changes.

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34

CALIBRATION

CALIBRATION

CALIBRATION

CALIBRATION

CALIBRATION

CALIBRATION

4. After the number of calibration points has been entered, press ENTER. The display
appears as follows:

OFFSET

Place force gauge
horizontally, then
press ZERO.

5. Place the force gauge horizontally on a level surface free from vibration, then press
ZERO. The gauge will calculate internal offsets, and the display appears as follows:

OFFSET

Please wait…

OFFSET

Sensor passed
Analog passed

6. The following screen appears after the offsets have been calculated:

COMPRESSION

Attach necessary
weight fixtures,
then press ENTER.

OFFSET

Sensor failed
Analog failed

If failed:

Attach weight fixtures (brackets, hooks, etc), as required. Do not yet attach any weights or apply
any calibration loads. Press ENTER.

7. The display appears as follows:

COMPRESSION

Optionally exercise
sensor, then press
ENTER.

Optionally exercise the load cell shaft several times (at full scale, if possible), then press ENTER.

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Series 7 Digital Force Gauges User’s Guide

35

CALIBRATION

then press ENTER.

CALIBRATION

Press ENTER.

CALIBRATION

CALIBRATION

8. The display appears as follows:

COMPRESSION

Gain adjust

Apply full scale load

10.000 lbF +/-20%,
then press ENTER.

Apply a weight equal to the full scale of the instrument, then press ENTER.

9. After displaying “Please wait…” the display appears as follows:

COMPRESSION

Ensure no load,

then press ZERO.

Remove the load applied in Step 8, leave the fixtures in place, then press ZERO.

10. The display appears as follows:

COMPRESSION

Apply load

1 OF 5

Enter load:

2.000 lbF

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). For example, if a 50 lbF capacity gauge is calibrated, and 5 data
points were selected, the load values will default to 10, 20, 30, 40, and 50 lb. Apply the calibration
load. Then press ENTER.

Repeat the above step for the number of data points selected.

11. After all the compression calibration points have been completed, the display appears as
follows:

COMPRESSION COMPLETE

Reverse direction
for tension.
Attach necessary
weight fixtures,

Press ENTER.

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Series 7 Digital Force Gauges User’s Guide

36

CALIBRATION

CALIBRATION

CALIBRATION

CALIBRATION

12. The display appears as follows:

To invert the
display, press the
DIRECTION button,
then press ENTER

Reverse the orientation of the load cell shaft by rotating the gauge 180 degrees. Press
DIRECTION to invert the display. Then attach weight fixtures. The following screens will step
through the same procedure as with the compression direction. Proceed in the same manner.

13. At the completion of the tension calibration, the display appears as follows:

COMPLETE

Save & exit
Exit w/o saving

To save the calibration information, select “Save & exit”. To exit without saving the data select
“Exit without saving”.

14. Any errors are reported by the following screens:

Units must be gF.

Please try again

Press ENTER.

Displayed at the start of calibration if a disallowed unit is selected.

Load not stable.

Please try again.

Ensure that the load is not swinging, oscillating, or vibrating in any manner. Then try again.

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Series 7 Digital Force Gauges User’s Guide

37

PASSWORDS 2

PASSWORDS

+ More

CALIBRATION

CALIBRATION

COMPRESSION

Load too low.

Please try again.

The calibration weight does not match the set value.

TENSION

Load too close

to previous.

Please try again.

The entered calibration point is too close to the previous point.

15 PASSWORDS

Two separate passwords may be set to control access to the Calibration section and to the menu and
other keys. To access the passwords setup screen, select Passwords from the menu. The display
appears as follows:

Calibration
MENU Key
UNITS Key
MODE Key

ZERO Key

Select “+ More” for additional options:

POWER Key

DATA Key
CLEAR Key

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Series 7 Digital Force Gauges User’s Guide

38

INCORRECT

CALIBRATION

(0000 – 9999)

15.1 Calibration Password

Select Calibration from the sub-menu. The display appears as follows:

PASSWORD

* Disabled
Enabled
Set Password

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. When the desired value has been selected, press ENTER, then

ESC to exit the sub-menu.

15.2 MENU Key Password

If enabled, every time the MENU key is selected, a password must be provided. Select Menu Key from
the sub-menu. Follow the same procedure as described above.

15.3 Locking Out Other Keys

Other keys may be locked out individually. Select any combination of keys (UNITS, MODE, ZERO,
DATA) by pressing ENTER in the Passwords sub-menu. Pressing a locked key will prompt the message

“KEY PROTECTED” and then revert to the previous screen.

15.4 Password Prompts

If passwords have been enabled, the following will be displayed when pressing the MENU key or
accessing the Calibration section:

ENTER PASSWORD

(0000 – 9999)

5000

Use the UP and DOWN keys to select the correct password, then press ENTER to continue.

If the incorrect password has been entered, the display appears as follows:

PASSWORD

Reset password

Request code:

XXXX

To re-enter the password, press ESC to exit to the home screen. Then, access the desired function and
enter the password again when prompted.

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Series 7 Digital Force Gauges User’s Guide

39

Selection

Description

Disabled

Disable automatic shutoff.

Enabled

Enable automatic shutoff.

Set Minutes

The length of time of inactivity. Available settings: 5-30, in 5 minute increments.

Selection

Description

Off

Backlight to be off upon powering on the gauge.

On

Backlight to be on upon powering on the gauge.

Auto

Backlight to be on upon powering gauge, but will shut off after a period of inactivity (as

Minutes parameter. Available settings: 1-10, in 1 minute increments.

BACKLIGHT

1

AUTOMATIC SHUTOFF

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.

16 OTHER SETTINGS

16.1 Automatic Shutoff

The gauge may be configured to automatically power off following a period of inactivity while on battery
power. Inactivity is defined as the absence of any key presses or load changes of 100 counts or less. To
access these settings, select Automatic Shutoff from the menu. The display appears as follows:

Disabled
* Enabled
Set Minutes
5

Note: If the AC adapter is plugged in, the gauge will ignore these settings and remain powered on until
the POWER key is pressed.

16.2 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 gauge). To access these settings,
select Backlight from the menu. The display appears as follows:

Off
On
* Auto
Set Minutes

defined in the Automatic Shutoff sub-section). The backlight will turn on again when
activity resumes. The length of time of inactivity is programmed in minutes via the Set

Note: If the AC adapter is plugged in, the gauge will ignore these settings and keep the backlight on.

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Series 7 Digital Force Gauges User’s Guide

40

RESTORE DEFAULT

INITIAL SETTINGS

TONES

Continuous

LCD CONTRAST

16.3 LCD Contrast

The contrast of the display may be adjusted. Select LCD Contrast from the menu. The screen appears
as follows:

Set Contrast

10

Press ENTER to modify the contrast. Select a value from 0 to 25, 25 producing the most contrast.

16.4 Tones

Audible tones can be enabled for all key presses and alerts, such as overload, set point value reached,
etc. The Set Point alert can be configured to be either a momentary tone or a continuous tone (until the
load is restored to a value between the set points). To configure the functions for which audible tones will
apply, select Tones from the menu. The screen appears as follows:

Keys
* Alerts
Set Points
* Momentary

16.5 Initial settings

This section is used to configure the initial settings upon powering on the gauge. The initial units of
measurement and the primary reading measurement mode may be configured. To access these settings,
select Initial Settings from the menu. The screen appears as follows:

Units
lbF
Mode
Real Time

16.6 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:

SETTINGS?

No

Yes

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Series 7 Digital Force Gauges User’s Guide

41

Accuracy:

±0.1% of full scale

Sampling rate:

14,000 Hz

Power:

AC adapter: 100-240VAC, 50-60 Hz, 0.3 A

Backlight on: up to 7 hours of continuous use
Measurement units:

lbF, ozF, gF, kgF, N, kN, mN, COF (depending on model)

USB / RS-232: Fully configurable up to 115,200 baud. Includes GCL2 (Gauge Control

Set points:

Safe overload:

200% of full scale (display shows “OVER” at 110% and above)

Weight (gauge

M7-012 – M7-100: 1.0 lb [0.45 kg]
M7-200 – M7-500:

Included
accessories:

Carrying case, chisel, cone, V-groove, hook, flat, extension rod, thread adapter (M5-1000

Environmental
requirements:

Warranty:

3 years (see individual statement for further details)

Parameter

Setting

Set points

Upper

Disabled (defaults to 80% of full scale, compression, when enabled)

Lower

Disabled (defaults to 40% of full scale, compression, when enabled)

Filters

Current

16

Displayed

2048

Average mode

Disabled

Initial Delay

0

Trigger Force

10% of full scale

Digital Force Gauge

16.7 Information / Welcome Screen

The following screen is displayed at power-up and can be accessed at any time by selecting Information
from the menu:

Series 7
Model No: M7-50
Serial No: 1234567
Version: 1.0
(c) Mark-10 Corp.

17 SPECIFICATIONS

17.1 General

Battery: Rechargeable 8.4V NiMH
Low battery indicator appears when battery level is low, and gauge powers off
automatically when power reaches critical stage.

Battery life:

Outputs:

only):

Backlight off: up to 24 hours of continuous use

Language 2) for full computer control.

Mitutoyo (Digimatic): Serial BCD suitable for all Mitutoyo SPC-compatible devices.
Analog: ±1 VDC, ±0.25% of full scale at capacity,
General purpose: Three open drain outputs, one input.

only), AC adapter, battery, USB cable, NIST-traceable certificate of calibration with data

Indoor use only, at 40 - 100°F, max. 93% humidity, non-condensing.

17.2 Factory Default Settings

Three open drain lines.

1.2 lb [0.54 kg]

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Series 7 Digital Force Gauges User’s Guide

42

Averaging Time (sec.)

5.0

Auto Output Settings

All disabled

Auto Zero Delay

5 sec.

External Trigger

Disabled

Auto Output Settings

All disabled

Auto Zero Delay

5 sec.

DATA Key Functions

RS-232/USB Output

Enabled

Mitutoyo Output

Disabled

Memory Storage

Enabled

Auto Zero

Disabled

Auto Zero Delay

5 sec.

Serial/USB

RS-232 Output Selected

Enabled

USB Output Selected

Disabled

Baud Rate

115,200

Data Format

Numeric + Units

Auto Output

Disabled

Outputs per Sec.

125

Mitutoyo BCD Output

Disabled

Break Detection

Disabled

Threshold

10% of full scale

% Drop

50% of peak

Auto Zero Delay

5 sec.

Auto Output Settings

All disabled

Auto Storage

Disabled

Auto Zero

Disabled

First, Second Peak

Disabled

Thresholds

10%

% Drops

50%

Auto Zero Delay

5 sec.

Auto Output Settings

All disabled

Auto Store Peaks

Disabled

Data Capture

Disabled

Period

00:00:01:00000

Start Condition

Start force of 10% of full scale

Stop Condition

Stop force of 20% of full scale

Auto Settings

All disabled

Footswitch

Disabled

Steps 1 / 2 / 3

None

Delays 1 / 2 / 3

0 sec.

COF

Disabled

Sled Weight

20% of full scale

Custom Unit

Disabled

Base Unit

lbF

Multiplier

1.000

Tones

Keys

Enabled

Alerts

Enabled

Set Points

Momentary

Automatic Shutoff

Enabled

Set Minutes

5

Backlight

Auto

Set Minutes

1

Initial Settings

Units

lbF

Mode

Real Time

Passwords

All disabled

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Series 7 Digital Force Gauges User’s Guide

43

M7-025

M7-10

M7-50

Model

Deflection (in [mm])

M7-012

0.005 [0.13]

17.3 Capacity x Resolution

Model lbF ozF kgF gF N kN mN

M7-012 0.12 x 0.00002 2 x 0.0005 - 50 x 0.01 0.5 x 0.0001 - 500 x 0.1

0.25 x 0.00005 4 x 0.001 - 100 x 0.02 1 x 0.0002 - 1000 x 0.2

M7-05 0.5 x 0.0001 8 x 0.002 - 250 x 0.05 2.5 x 0.0005 - 2500 x 0.5

M7-2 2 x 0.0005 32 x 0.01 1 x 0.0002 1000 x 0.2 10 x 0.002 - -

M7-5 5 x 0.001 80 x 0.02 2.5 x 0.0005 2500 x 0.5 25 x 0.005 - -

10 x 0.002 160 x 0.05 5 x 0.001 5000 x 1 50 x 0.01 - -

M7-20 20 x 0.005 320 x 0.1 10 x 0.002 10000 x 2 100 x 0.02 - -

50 x 0.01 800 x 0.2 25 x 0.005 25000 x 5 250 x 0.05 - -

M7-100 100 x 0.02 1600 x 0.5 50 x 0.01 50000 x 10 500 x 0.1 - -

M7-200 200 x 0.05 3200 x 1 100 x 0.02 - 1000 x 0.2 1 x 0.0002 -

M7-500 500 x 0.1 8000 x 2 250 x 0.05 - 2500 x 0.5 2.5 x 0.0005 -

COF and user-defined units are excluded from the above chart.

17.4 Load Cell Deflection

M7-025 – M7-500 0.010 [0.25]

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Series 7 Digital Force Gauges User’s Guide

44

Thread

Flat

M7-012 – M7-100

#10-32M UNF

5/16 [7.94]

M7-200 – M7-500

5/16-18M UNC

5/16 [7.94]

17.5 Dimensions IN [MM]

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