Mark-10 ESM303 User manual

Models ESM303 & ESM303H
FORCE TEST STANDS
User’s Guide

Models ESM303 & ESM303H Test Stands User’s Guide
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Thank you…
Thank you for purchasing a
Mark-10 ESM303 / ESM303H
Force Test Stand, designed
for producing up to 300 lbF
(1.5 kN) of tension and
compression force. The
ESM303 / ESM303H is an
essential component of a force
testing system, typically also
comprising a force gauge, or
load cell with indicator, and
grips.
With proper usage, we are confident that you will get many years of great
service with this product. Mark-10 test stands 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.
Note:
Except where otherwise indicated, references to “ESM303” include models ESM303 and ESM303H.
Before use, each person who is to use the test stand should be fully trained in appropriate
operation and safety procedures.
TABLE OF CONTENTS
OVERVIEW..........................................................................................3
SETUP AND SAFETY.........................................................................5
OPERATION BASICS .......................................................................11
TEST FUNCTION SETUP .................................................................13
OPERATING MODES........................................................................25
COMMUNICATION............................................................................31
FUNCTION ACTIVATION..................................................................33
INSTALLING THE SAFETY SHIELD OPTION.................................34
INSTALLING THE TRAVEL INDICATION OPTION.........................35
INSTALLING A COLUMN EXTENSION OPTION ............................37
MAINTENANCE AND SERVICE.......................................................40
TROUBLESHOOTING.......................................................................41
SPECIFICATIONS.............................................................................42
DIMENSIONS ....................................................................................42

Models ESM303 & ESM303H Test Stands User’s Guide
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1 OVERVIEW
1.1 List of included items
Description
Qty.
ESM303
Qty.
ESM303H
1
Force gauge mounting adapter
1
Indicator / load cell mounting adapter
4
Force gauge / indicator mounting screws,
#6-32 x 1/2
4
Indicator mounting screws, #6-32 x 1/2
2
Limit switch thumb screws, #6-32 x 5/8
2
Limit switch thumb screws, #6-32 x 5/8
1
Control panel
1
Control panel
1
Control panel mounting bracket
1
Control panel mounting bracket
-
-
1
Adapter, control panel bracket to frame
(shipped installed)
1
Screw for mounting control panel bracket
to column, 1/4-20 x 1”, with lock washers
2
Screws for mounting control panel bracket
to adapter, #8-32 x 1” (shipped installed)
-
-
2
Screws for mounting adapter to frame,
#10-32 x 1” (shipped installed)
2
Screws for mounting control panel to
bracket, 1/4-28 x 1-1/4”, with lock
washers
2
Screws for mounting control panel to
bracket, 1/4-28 x 1-1/4”, with lock
washers
1
Accessories kit:
- #10-32F small hook
- #10-32M medium hook
- #10-32F 2” diameter comp. plate
- #10-32 M/F 2” extension rod
- #10-32 F/F coupler
- Adapter, 5/16-18M to #10-32F
- Set screw, #10-32 x 3/4" (3)
- Hex nut, #10-32 (3)
- Allen wrench set
1
Accessories kit:
- #10-32F small hook
- #10-32M medium hook
- #10-32F 2” diameter comp. plate
- #10-32 M/F 2” extension rod
- #10-32 F/F coupler
- Adapter, 1/2-20M to #10-32F
- Adapter, 1/4-28M to 5/16-18F
- Adapter, 5/16-18M to #10-32F (2)
- Set screw, #10-32 x 3/4" (3)
- Hex nut, #10-32 (3)
- Allen wrench set
1
Resource CD
1
Resource CD
1
Power cord
1
Power cord
Additional optional items are available, such as an adjustable base plate, connection cables, and column
extensions. Instructions for installing a column extension and retrofitting the test stand with the travel
indication option are provided later on in this user’s guide.

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1.2 Physical features
Note the following physical features. The user’s guide will reference this terminology.
1.2.1 ESM303
Base
Base plate
Lower grip
Upper grip
Force gauge
Column
Control panel
Emergency stop
Limit
switch
(upper)
Test sample
Crosshead
Interface
cable
Column cap
Limit
switch
(lower)
Control panel
mounting bracket

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1.2.2 ESM303H
2SETUP AND SAFETY
2.1 Mounting
Place the stand on a clean, flat and level work area free from vibration.
For the vertically oriented ESM303, It is suggested to mount the stand to a work bench via screws
fastened into the underside of the base. Failure to properly mount the test stand may make it more
vulnerable to tipping, especially if a column extension is used, causing a hazardous situation.
2.2 Mounting the control panel
To avoid damage during shipment, the control panel and mounting bracket are packaged separately.
Follow these installation instructions:
2.2.1 ESM303
1. Install the mounting bracket to the column utilizing one 1/4-20 screw.
Control panel
mounting bracket
Control panel
Control panel
bracket adapter
Frame cap
Interface
cable
Indicator
Crosshead, indicator / load
cell mounting kit
Load cell
Left limit switch
Right limit switch
Alternate control
panel mounting
location
Base plate
Base
Left grip
Test sample
Right grip
Emergency stop

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2. Install the control panel to the mounting bracket utilizing two #8-32 screws.
3. The viewing angle may be adjusted by loosening the lever, positioning the control panel, and re-
tightening the lever.
2.2.2 ESM303H
1. Install the control panel to the mounting bracket utilizing two 1/4-28 screws.
2. Install the mounting bracket to the bracket adapter with two #8-32 screws.
3. Install the bracket adapter to the edge of the test frame with two #10-32 screws. This may be
done on either the right end or the left end of the frame, where sets of #10-32 holes are provided.
4. The viewing angle may be adjusted by loosening the lever in the rear of the bracket, positioning
the control panel, and re-tightening the lever.
2.3 Limit switches
Upper and lower limit switches are supplied to stop travel in both directions. The limit switch thumb
screws are shipped banded together, as illustrated below:
Remove the rubber band and instructional tag before use. Refer to later sections for more detailed
information about limit switches.

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2.4 Connections and outputs
The following connections and outputs are supplied in the rear of the test stand, as shown in the
illustration below:
USB connector
Outputs force only or force and travel data (optional) via USB. Also allows
for PC control (optional). Plug one end of the USB cable into this connector,
and the other end into a PC’s USB port. Refer to the next sub-section for
driver installation information.
Auxiliary limit switch connector
For interfacing an external limit switch, such as an interlock for a machine
guard door. A pin diagram is shown in the next sub-section.
Control panel cable connector
Plug the cable into this connector.
Power switch
Refer to the Connecting Power sub-section for important safety
information.
Power plug receptacle
Plug the power cord in here. Refer to the Connecting Power sub-section
for important safety information.
2.4.1 Auxiliary limit switch pin diagram
Note that when pins 3 and 4 are not connected, the auxiliary limits are inactive.When the +5V from pin 2
is connected to either pin 3 or pin 4, the respective limit becomes active and the crosshead is prevented
from movement in that direction.
2.4.2 USB driver installation
To use this output, install the USB driver provided on the Resource CD, labeled “Mark-10 USB Device”.
Installation instructions may also be found on the CD or may be downloaded from www.mark-10.com.
Caution!
Install the USB driver before physically connecting the tester to a PC with the USB cable.

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Further instructions for configuring communication parameters may be found in the Test Function Setup
section.
If PC control is used, a full listing of available ASCII commands may be found in the Operating Modes
section.
2.5 Installing a force gauge or indicator with load cell
2.5.1 ESM303
Once the test stand is in a stable and secure position, install a force gauge by mating the dowel pin in the
force gauge mounting plate with the blind hole in the rear of the force gauge’s housing. Use the four
thumb screws to secure the gauge. Grips and fixtures may be threaded onto the force gauge and test
stand base.
2.5.2 ESM303H
1. Once the test stand is in a stable and secure position, install an indicator via four thumb screws.
2. Install a load cell to the crosshead using the supplied hardware, and insert the Plug & TestTM
connector into the indicator, as shown in the image below:
2.6 Installing an indicator / load cell mounting kit (optional for ESM303)
The optional AC1062 mounting kit is available to mount a Series R01 or Series R03 load cell (force
sensor) and an indicator onto the crosshead, instead of a force gauge. To install, follow these
instructions:
1. Remove the force gauge mounting plate by loosening the two 5/16-18 flat head screws, as shown
below:
2. Install the indicator bracket onto the side of the crosshead, utilizing two #10-32 flat head screws,
as shown below:

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3. Install the L-bracket with the same two flat head screws, as shown below:
4. Mount the load cell to the L-bracket utilizing the included hardware, as shown below.
5. Mount the indicator utilizing the four provided thumb screws, and insert the Plug & TestTM
connector into the indicator. Orient the housing of the indicator such that the connector is pointed
downwards. Refer to the indicator’s user’s guide for details.

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2.7 Installing the 09-1214 / 09-1252 interface cable
If using test stand functions requiring communication between the force gauge / indicator and test stand,
such as data output, overload protection, preload, etc., connect the interface cable between the
instrument’s connector and the crosshead’s connector. This cable may be used with a Series 4, 5, or 7
instrument. Refer to the image below:
or
09-1214 (ESM303)
09-1252 (ESM303H)
Note:
The 09-1214 and 09-1252 cables power the instrument. When connected, the instrument automatically
powers on when the test stand is powered on. The instrument’s AC adapter is not necessary under these
conditions.
2.8 Safety / proper usage
Typical materials able to be tested by the ESM303 include many raw materials and manufactured items,
such as springs, metals, plastics, electronic components, mechanical assemblies, packaging materials,
and many others. Potentially flammable substances or products should not be used with the ESM303. For
samples which can shatter or otherwise present a physical danger to the operator, a safety shield is
required, such as model no. ESM303-003. Refer to the Safety Shield section for installation instructions.
Ensure that the grip or fixture is positioned to ensure axial load with respect to the load axis of the load
cell or 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 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.
A safety shield is recommended
2.9 Connecting power
Plug one end of the power cord into its receptacle at the rear of the stand and the other end into a wall
outlet with local earth ground (3-prong connector).
Before turning on power, the following safety checks and procedures should be performed:
1. Never operate the test stand if there is any visible damage to the power cord or the test stand
itself. The ESM303 is powered by 110V/220V. Any contact with this high voltage can cause
serious injury or even death.
2. Ensure that the test stand is kept away from water or any electrically conductive liquids at all
times.
3. Make sure the electrical outlet powering the test stand has local earth ground (3-prong
connector).

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4. The test stand should be serviced by a trained technician only. Power must be disconnected
before the column covers are removed.
After the above safety checks and procedures have been performed, the test stand may be powered on
and is ready for operation.
3OPERATION BASICS
3.1 Operational safety
The following safety checks and procedures should be performed before and during operation:
1. 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.
2. 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.
3. Keep away from moving parts of the test stand. Loose articles of clothing should not be worn. Long
hair should be covered to avoid a hazardous situation. A Crush Hazard warning label is located on
the base of the test stand. It appears as follows:
Definition: Keep any body parts and clothing clear of the area between the base of the test stand and the
moving crosshead.
4. In those applications where samples can shatter, or other applications that could lead to a
hazardous situation, use of a machine guard is strongly recommended.
5. When the test stand is not in use, ensure that the power is turned off to prevent accidental
engagement of any of the controls.

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3.2 Controls
Label
Function
1
SOFT KEYS
Functions are determined by the corresponding text on the display.
2
UP / RIGHT
Commences movement in the up (ESM303) or right (ESM303H) direction.
3
STOP
Stops crosshead movement.
4
DOWN / LEFT
Commences movement in the down (ESM303) or left (ESM303H) direction.
5
FollowMeTM
Enables force-activated crosshead positioning. If this option is not installed, the
message “NOT INSTALLED” flashes.
6
ZERO TRAVEL
Zeroes the travel display. If this option is not installed, the message “NOT
INSTALLED” flashes.
7
EMERGENCY
STOP
Press this button at any time to stop test stand motion. Rotate clockwise to
release.
3.3 Modes overview
The ESM303 has three functional modes:
1. OPERATING MODE
This is the operating mode in which testing sequences can be started and stopped.
2. TEST FUNCTION SETUP
In this mode, test functions are configured, such as rate of speed, number of cycles, password
editing, and other functions.
3. FUNCTION ACTIVATION
Many test stand functions, such as cycling, auto return, distance measurement, and others are
ordered individually as options. The Function Activation menu provides a means of identifying
which functions were purchased. Through this menu, it is also possible to enable any functions
not originally purchased via an activation code. All functions are temporarily enabled for the first
160 hours of operation, as described below:
2
3
4
1
5
6
7

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DEMO MODE
The ESM303 is shipped in Demo Mode, during which time all available functions are
temporarily activated for 160 hours of operation. At power-up, a counter displays the
number of hours remaining, as follows:
Press STOP to continue.
At the end of this period, any functions not originally purchased will be deactivated,
and will no longer be accessible from the Test Function Setup menu. Demo Mode
can be suspended at any time by pressing and holding STOP while turning on power
to the test stand. This mode can be re-enabled in the same manner, and will be
active for the remaining time period.
Refer to the Function Activation section for instructions for field activation.
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4 TEST FUNCTION SETUP
This section provides configuration instructions for each function.
Function
Standard / Optional
Travel indication
Optional
Speed - same setting applies to both directions
Standard
Independent up and down speeds
Optional
High speed range extension
Optional
Low speed range extension
Optional
Auto return
Optional
Cycling with dwell time
Optional
Programmable travel limits
Optional
Overload protection
Optional
Preload
Optional
Loadholding
Optional
Break detection
Optional
PC control
Optional
FollowMeTM
Optional
Profiles
Optional
Communication settings
Standard
Speed / distance unit of measurement
Standard
Directional button configuration
Standard
Password protection
Standard
All ESM303 test stands are supplied in Demo Mode, as explained in the Overview section. After Demo
Mode expires, only installed functions will be displayed in Test Function Setup. To access Test Function
Setup menu, press menu from the Operating Mode home screen, which appears as follows:
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After pressing menu, the initial Test Function Setup screen appears as follows:
Label
Description
ESC
Exits Test Function Setup, reverts to Operating Mode
< –
Scrolls to the previous function
–>
Scrolls to the next function
ENTR
Selects the function, allowing it to be modified
When the functions have been configured and are ready to be saved, press ESC to exit Test Function
Setup.
Note:
Changes can be made to an unlimited number of settings before saving.
If the PROFILES function is installed, the changes may be saved to the desired profile name. The screen
appears as follows:
Label
Description
ESC
Exits Test Function Setup, reverts to Operating Mode
+
Scrolls to the next saved profile
EDIT
Press to edit the profile name. The first character will be
flashing. Press +to change the character and –>to
advance to the next character.
SAVE
Saves the settings under the specified profile name
Refer to the Profiles sub-section for further details on selecting and deleting profiles.
If PROFILES is not installed, the screen appears as follows:
Make the appropriate selection.
4.1 Speed
If the Independent Speeds option has not been installed, both directional speeds will be the same, and is
programmed via the SPEED function. If the Independent Speeds option is installed, UP SPEED / RIGHT
SP and DN SPEED / LEFT SP functions will be present, and may be set individually.
Default setting: 10 in/min / 250 mm/min
Available settings: 0.02 –45 in/min / 0.5 –1,100 mm/min
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4.2 Auto return
With this function, the crosshead moves to a limit switch or soft limit (force set point, distance limit,
preload, or break), whichever occurs first, and stops. Then, the crosshead returns to the other limit and
stops. The test speed is dictated by the setting described in the previous section. The return speed is
locked to maximum speed. The maximum speed depends on whether or not the optional high speed
range has been installed.
Default setting: off
Available settings: off, on
Label
Description
+ or –
Cycles through the available settings
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
Note:
If AUTO RETURN is turned on, CYCLING is automatically turned off and the KEYS function is
automatically set to MAINTAINED mode. See following pages for details on the CYCLING and KEYS
functions.
4.3.1 Cycling (CYCLES)
This setting allows the user to configure the number of up and down cycles through which the crosshead
will sequence. One cycle consists of the crosshead moving to a limit switch or soft limit, whichever occurs
first, at the specified speed, stopping for the specified amount of dwell time, and returning to the other
limit at the specified speed. If the Independent Speeds function is not enabled, the speed will be the same
in both directions.
Default setting: 00000 (off)
Available settings: 00000 –99999
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Label
Description
+
Increments the speed setting. Holding down +will
increment at an increasingly faster rate.
–
Decrements the speed setting. Holding down –will
decrement at an increasingly faster rate.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
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4.3.2 Dwell times (HI / R DWELL and LO / L DWELL)
This setting corresponds to the amount of time, in seconds, for which the crosshead stops at the limit
during a cycle sequence. Individually set dwell times can be applied to the upper and lower (or right and
left) limits.
Note:
The dwell time setting is unavailable for an auto return sequence.
Default setting: 0 (no dwell time)
Available settings: 0 –9999.9
Label
Description
+
Increases dwell time in increments of .1. Holding down +will increment at an
increasingly faster rate. If 9999.9 is reached the next number will be 0 and
continue incrementing.
–
Decreases dwell time in increments of .1. Holding down –will decrement at
an increasingly faster rate. If 0 is reached the next number will be 9999.9
and continue decrementing.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.4 Travel limits (HI LIMIT / RIGHT LM and LO LIMIT / LEFT LM)
Travel limits may be programmed as specified distances, either as upper and lower limits, or right and left
limits. The crosshead stops when the distance limits have been reached.
Default settings: Upper / Right: +20.000 in, Lower / Left: -20.000 in
Available settings: From -20.000 to +20.000 in
Label
Description
+
Increases the number of cycles in increments of 1. Holding down +
will increment at an increasingly faster rate. If 99999 is reached
the next number will be 00000 and continue incrementing.
–
Decreases the number of cycles in increments of 1. Holding down
–will decrement at an increasingly faster rate. If 00000 is reached
the next number will be 99999 and continue decrementing.
Press and hold
+ and –
simultaneously
If pressed and held for 2 seconds or longer the number of cycles
will change to 0.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
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Label
Description
+
Increments the travel limit setting by .001 in or .02 mm.
Holding down + will increment at an increasingly fast rate.
–
Decrements the travel limit setting by .001 in or .02 mm.
Holding down –will increment at an increasingly fast rate.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.5 Overload protection (OVERLD)
4.5.1 Function
The ESM303 protects a load cell or force gauge from overload by measuring incoming analog voltage
and stopping crosshead travel when the programmed percentage of full scale has been reached. The
default setting is for Mark-10 instruments (±1V full scale), however, the setting may be changed to ±2V or
±4V to accommodate other instruments.
Default setting: OFF
Available settings: MARK-10, OTHER 2V, OTHER 4V, OFF
Label
Description
+ or –
Cycles through the following available settings:
MARK-10
±1V full scale
OTHER 2V
±2V full scale
OTHER 4V
±4V full scale
OFF
Overload protection is disabled
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.5.2 Compression and tension overload settings (COMP OVERLD and TEN OVERLD)
This setting corresponds to the percentage of full scale at which crosshead travel stops. For example, a
setting of 80% for a 100 lbF capacity force gauge would stop crosshead travel when approximately 80 lbF
is reached.
Note:
Overload protection is active only for forces applied in the same direction of travel.
Default setting: 100%
Available settings: 20% - 120% (10% increments)
Label
Description
+ or –
Increases or decreases the value.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
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4.6 Preload
4.6.1 Function
This setting corresponds to the test stand’s response to an initial load, referred to as a preload. The
crosshead can stop and/or zero the travel display when the preload has been reached. This function is
useful for applications such as spring testing, elongation testing, and tensile and compression testing of
various materials. In effect, it establishes a reference point. It is also sometimes referred to as a touch.
Note:
Before the start of a preload sequence, the crosshead must be positioned at either physical limit switch.
Default setting: OFF
Available settings: STOP, STOP/ZERO, ZERO/GO, OFF
Label
Description
+ or –
Cycles through the available settings listed below:
STOP
Crosshead stops when preload has been reached
STOP, ZERO
Crosshead stops when preload has been reached, then zeroes the travel display
ZERO, GO
Travel display is zeroed when preload has been reached, crosshead does not stop
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.6.2 Preload Value (PRELD %FS)
This setting corresponds to a preload value, defined as a percentage of the instrument’s full scale in lbF
units. The test stand’s response, as described in the previous section, occurs when this value has been
reached.
Note:
In low force applications, consider test stand vibration and crosshead acceleration, as they can be
significant enough to produce a force exceeding the preload value.
Default setting: 1%
Available settings: 0 –100%
Label
Description
+ or –
Increases or decreases the value, in increments of .1
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.7 Load holding
This setting directs the test stand to dynamically adjust the crosshead position to maintain a programmed
force. The force is programmed as a set point in a Series 5 or 7 instrument (refer to the user’s guide for
details). If the CYCLING option has been installed, load holding will be active for the period of time as
defined in dwell settings. If CYCLING has not been installed, load holding will continue indefinitely.
Pressing STOP will end load holding.
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Models ESM303 & ESM303H Test Stands User’s Guide
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Default setting: OFF
Available settings: ON, OFF
Label
Description
+ or –
Cycles through the available settings
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.8 Break detection
4.8.1 Setting
This setting directs the test stand to stop when a sample break has occurred. The test stand stops when
the force has decreased to a specified percentage of peak.
Default setting: OFF
Available settings: ON, OFF
Label
Description
+ or –
Cycles through the available settings
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.8.2 Activation threshold
This setting corresponds to the force threshold after which the break detection function is active. The
threshold is provided to prevent false activation of the function during sample handling. The threshold is
defined as a percentage of full scale of the load cell or force gauge. For example, for a 50 lbF capacity
force gauge, a setting of 10% represents 5 lbF.
Default setting: 10%
Available settings: 1% - 95% (1% increments)
Label
Description
+ or –
Increases or decreases the value.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
4.8.3 Percentage of peak
This setting corresponds to the force trigger for break detection, defined as a percentage of peak force.
For example: A sample is tensioned, and breaks at 50 lbF. The break detection percentage setting is
60%. After the sample breaks, the force rapidly decreases to 30 lbF (60% of peak), and the stand stops.
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Models ESM303 & ESM303H Test Stands User’s Guide
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Default setting: 80%
Available settings: 1% - 95% (1% increments)
Label
Description
+ or –
Increases or decreases the value.
ENTR
Returns to the Test Function Setup menu
ESC
Exits the function without saving changes
Note:
When using an ESM303 / ESM303H test stand with a Series 7 instrument, enable Break Detection in
either the test stand or the instrument. The function will not work if simultaneously enabled in both
devices.
4.9 Control source (CONTROL)
This setting corresponds to the source of test stand control, as follows:
CONSOLE
The test stand is controlled either from the control panel or from MESURgauge Plus software
running on a PC.
PC
The test stand is controlled from a custom written PC application (not MESURgauge Plus). If any
functions are changed on the front panel, these settings will be ignored, except for Auto Return
or Cycling. If either of these functions is turned on, PC control will be turned off.
Default setting: CONSOLE
Available settings: CONSOLE, PC
Label
Description
+ or –
Cycles through the available settings
ENTR
Returns to the Function Setup menu
ESC
Exits the function without saving changes
4.10 Baud rate
This setting corresponds to the baud rate setting of the computer program controlling the test stand.
Default setting: 115200
Available settings: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
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