Jetco TTS-1000 User manual
1
TS-1000 & TTS-1000
Torque Tester
Operation Manual
Rev 2 2008
Introduction
The JETCO Electronic Torque Meter is a highly accurate torque analyzer and
production tool. Use it as a high end torque calibrator or bring it to the work
site to accurately apply torque to fasteners.
With the JETCO Electronic Torque Meter you only have to buy one electronic
module. Simply add ranges as you need them by purchasing additional
torque transducers.
This meter uses the very latest in computer technology including a small
microchip installed on each transducer for true “plug and play” recognition of
the attached torque sensor. Simply attach the transducer, turn the unit on and
you are ready to go to work.
A full compliment of modes and functions combined with an easy to use
interface make this torque meter the perfect device for all torque applications.
There are some very special features inside of this meter that distinguish it
from the competition. For example, there is a “first peak” mode that allows
you to test and calibrate micrometer (clicking) type torque wrenches.
However, just having this software mode is not enough, you must also have
circuitry that is fast enough to capture the fast “click” of a torque wrench or
the ultra fast torque peaks of DC tools and pulse tools when in peak mode
(always use a joint rate simulator when testing power tools, joint rate
simulators simulate the actual torque application with springs).
The sampling rate of this torque meter is over 8,000 samples per second
rivaling any torque data acquisition system.
Memory for up to 1350 torque data combined with a direct rs232c com port
make this small unit a powerful data acquisition system.
Additionally, the torque meter has an industry leading triple 4 digit numeric
display that shows you the limits settings at all times and prompts you with
information during set-up.
These features combines with many other useful functions will make this the
last electronic torque meter you will ever need!
2
Table of Contents
Feature Overview....4
Keypad functions.....5
General Operation
Suggested mounting positions....6
Quick Start....7
To change the mode of operation....7
To change the units of measure....7
To turn limits on/off....7
To set a new target torque when % is the default.....8
To recall the last cleared torque....8
To save a torque value to memory....8
To view the attached transducer information....8
Menu Functions
To enter the menu mode....9
To recall memory....9
To send memory to a printer or computer....10
To erase memory....10
To set filters....10
To change the % tolerance value....11
To make high low limits the default tolerance method....11
To change the display clear (reset) method....12
Entering the limits value....12
Power Standby Mode....12
Entering Numbers....13
Zeroing the Display....13
Torque Sensors (transducers) and Overload....14
Transducer Mounting Positions....15
Checking forAccuracy....16
Calibrating and bypassing the smart transducer calibration data....18
Selecting Custom Transducers....20
Printing and Sending Data....20
Battery and Power....21
Specifications....22
TroubleShooting...23
Spare Parts....24
Transducer Information and Specifications ....25
Safety Warnings....28
3
Introduction
The JETCO Electronic Torque Meter is a highly accurate torque analyzer and
production tool. Use it as a high end torque calibrator or bring it to the work
site to accurately apply torque to fasteners.
With the JETCO Electronic Torque Meter you only have to buy one electronic
module. Simply add ranges as you need them by purchasing additional
torque transducers.
This meter uses the very latest in computer technology including a small
microchip installed on each transducer for true “plug and play” recognition of
the attached torque sensor. Simply attach the transducer, turn the unit on and
you are ready to go to work.
A full compliment of modes and functions combined with an easy to use
interface make this torque meter the perfect device for all torque applications.
There are some very special features inside of this meter that distinguish it
from the competition. For example, there is a “first peak” mode that allows
you to test and calibrate micrometer (clicking) type torque wrenches.
However, just having this software mode is not enough, you must also have
circuitry that is fast enough to capture the fast “click” of a torque wrench or
the ultra fast torque peaks of DC tools and pulse tools when in peak mode
(always use a joint rate simulator when testing power tools, joint rate
simulators simulate the actual torque application with springs).
The sampling rate of this torque meter is over 8,000 samples per second
rivaling any torque data acquisition system.
Memory for up to 1350 torque data combined with a direct rs232c com port
make this small unit a powerful data acquisition system.
Additionally, the torque meter has an industry leading triple 4 digit numeric
display that shows you the limits settings at all times and prompts you with
information during set-up.
These features combines with many other useful functions will make this the
last electronic torque meter you will ever need!
2
Table of Contents
Feature Overview....4
Keypad functions.....5
General Operation
Suggested mounting positions....6
Quick Start....7
To change the mode of operation....7
To change the units of measure....7
To turn limits on/off....7
To set a new target torque when % is the default.....8
To recall the last cleared torque....8
To save a torque value to memory....8
To view the attached transducer information....8
Menu Functions
To enter the menu mode....9
To recall memory....9
To send memory to a printer or computer....10
To erase memory....10
To set filters....10
To change the % tolerance value....11
To make high low limits the default tolerance method....11
To change the display clear (reset) method....12
Entering the limits value....12
Power Standby Mode....12
Entering Numbers....13
Zeroing the Display....13
Torque Sensors (transducers) and Overload....14
Transducer Mounting Positions....15
Checking forAccuracy....16
Calibrating and bypassing the smart transducer calibration data....18
Selecting Custom Transducers....20
Printing and Sending Data....20
Battery and Power....21
Specifications....22
TroubleShooting...23
Spare Parts....24
Transducer Information and Specifications ....25
Safety Warnings....28
3
User Friendly LCD with
Industry leading triple
numeric display
Hi/Low
or %
tolerance
shown at all times
Track
Peak
and
First peak mode
Three reset
modes:
Auto
Manual
Timed
Custom transducer mode
allows easy adaptation
to third party transducers
Software selectable filters
Auto convert
engineering units
Super large
5/8 high digits
Memory for up to 1350
torque data.
External power
Rs232 port
Transducer input
Fully adjustable
stand/swivel mount
Easy access
9 volt battery
compartment
On/Off
switch
High impact plastic case
with sealed membrane
keypad
Features
4
Press once to turn limits on or off
Press and hold to set new limits
Press to change modes
(press save key to save new mode)
Recall last cleared torque
Press and hold to send data on display
to computer or printer
Press to view current torque in other units
Increases value of blinking digit
when setting numbers.
Selects next digit when setting numbers
Selects next function when in Menu mode.
Scrolls through data in memory when recalling memory
Clears data
on display
Saves data on display or
Selects the current function
when in menu mode
Press together to view the attached
transducer data
Press together to enter menu (set-up) mode
Press together to zero the meter
Keypad Functions
5
%
User Friendly LCD with
Industry leading triple
numeric display
Hi/Low
or %
tolerance
shown at all times
Track
Peak
and
First peak mode
Three reset
modes:
Auto
Manual
Timed
Custom transducer mode
allows easy adaptation
to third party transducers
Software selectable filters
Auto convert
engineering units
Super large
5/8 high digits
Memory for up to 1350
torque data.
External power
Rs232 port
Transducer input
Fully adjustable
stand/swivel mount
Easy access
9 volt battery
compartment
On/Off
switch
High impact plastic case
with sealed membrane
keypad
Features
4
Press once to turn limits on or off
Press and hold to set new limits
Press to change modes
(press save key to save new mode)
Recall last cleared torque
Press and hold to send data on display
to computer or printer
Press to view current torque in other units
Increases value of blinking digit
when setting numbers.
Selects next digit when setting numbers
Selects next function when in Menu mode.
Scrolls through data in memory when recalling memory
Clears data
on display
Saves data on display or
Selects the current function
when in menu mode
Press together to view the attached
transducer data
Press together to enter menu (set-up) mode
Press together to zero the meter
Keypad Functions
5
%
Quick Start:
1. Turn off the power.
2. Plug in the proper transducer- Turn on-wait for the
display to show zero (do not apply torque during this time).
The meter reads the transducer smart chip when turned on.
3. Apply torque, (see warnings) you will see the reading
increase as you increase the torque.
4. Clear the display with the clear key.
Or
5. Save torque to memory with the save key.
DO NOT OVER TORQUE TRANSDUCER!
To change the mode of operation
1. Press the mode key until “peak”, “track” or “Fpeak”
shows.
2. Press the save key to accept the new mode.
Track mode displays the torque as it increases and
decreases.
Peak mode tracks up but will hold on the peak value.
Fpeak (first peak) mode will capture the click point of a
micrometer torque wrench and disregard further input.
This mode is used to test and calibrate click type torque
wrenches.
To change the units of measure
1. Press the units key until the arrow points to the desired
units (the set-up icon will also be on).
(EEEE will show if units are out of range for the transducer
attached).
2. Press the SAVE key to select the new units of measure.
Note: When you change the units of measure the limits
values (target or high and low) will be re-set to zero. The
meter will now power-on with the new units automatically.
To turn limits on/off
1. Press limits key once to turn on.
2. Press the limits key again to turn off.
Note:
You will see the limits value in the secondary set of digits-
“%” and the current target torque will show if % is the
default or high and low arrows with the actual high and low
values if the high and low method of limits is selected (see
%
04
100.0
General Operation
Belt mount
Suggested mounting positions
Loosen the 4 locking screws prior to adjusting
Reverse bracket and
hang on a thin shelf
Typical bench mounting
Vertical wall Under a shelf
Over a ledge
7
6
Quick Start:
1. Turn off the power.
2. Plug in the proper transducer- Turn on-wait for the
display to show zero (do not apply torque during this time).
The meter reads the transducer smart chip when turned on.
3. Apply torque, (see warnings) you will see the reading
increase as you increase the torque.
4. Clear the display with the clear key.
Or
5. Save torque to memory with the save key.
DO NOT OVER TORQUE TRANSDUCER!
To change the mode of operation
1. Press the mode key until “peak”, “track” or “Fpeak”
shows.
2. Press the save key to accept the new mode.
Track mode displays the torque as it increases and
decreases.
Peak mode tracks up but will hold on the peak value.
Fpeak (first peak) mode will capture the click point of a
micrometer torque wrench and disregard further input.
This mode is used to test and calibrate click type torque
wrenches.
To change the units of measure
1. Press the units key until the arrow points to the desired
units (the set-up icon will also be on).
(EEEE will show if units are out of range for the transducer
attached).
2. Press the SAVE key to select the new units of measure.
Note: When you change the units of measure the limits
values (target or high and low) will be re-set to zero. The
meter will now power-on with the new units automatically.
To turn limits on/off
1. Press limits key once to turn on.
2. Press the limits key again to turn off.
Note:
You will see the limits value in the secondary set of digits-
“%” and the current target torque will show if % is the
default or high and low arrows with the actual high and low
values if the high and low method of limits is selected (see
%
04
100.0
General Operation
Belt mount
Suggested mounting positions
Loosen the 4 locking screws prior to adjusting
Reverse bracket and
hang on a thin shelf
Typical bench mounting
Vertical wall Under a shelf
Over a ledge
7
6
%
%
04
100.0
50.00
2.000
0000
OR
8
0005
35.50
0005
9
To set a new target torque
(When % is the default limits mode)
1. Press and hold the limits key for 1 second.
(The current target torque shows with the first digit
blinking).
2. Use the increase and next key(s) to set the new target
torque (see “entering numbers” below).
3. Press the save key to accept the new target torque.
Note:
You will see the new target torque displayed in the
secondary set of digits when the limits mode is on. This
value will remain, even after turning the unit off, until you
either change the units of measure or plug in a new
transducer.
To recall the last cleared torque value
1. Press the recall key.
2. Press the clear key when finished viewing and return to
operation.
Note:
You can press the save key to save the recalled torque value
before pressing the clear key. This allows you to recall and
save a value that may have been accidentally cleared prior
to saving.
To save a torque value to memory
1. Press the save key to save the displayed torque value to
memory.
Note: If you press the save key when zero is displayed you
will store the zero value in memory. Use the clear key if
you do not want to save to memory but want to clear the
display.
To view the attached transducer information
1. Press the transducer keys.
2. Press clear when finished viewing the data.
Note:
The range is in the upper right digits.
The MV/v (cal factor) is in the lower digits.
Smart Transducers will show “Auto Xducer”
Menu functions:
There are many settings that can be changed or
viewed with the menu function.
1. Activate the menu function by pressing the mode and
units key at the same time (the display will show set-up).
2. Press the NEXT key to step through the various
options. See bleow for the functions available
Press the save key to select the option that is displayed.
To recall memory:
Each time you press the save key to clear the
display you save the cleared value to memory. To
recall and view memory values do the following:
1. Press menu keys (set-up icon comes on).
2. Press the next key once or until the ”recall mem” icon is
on (if you miss keep pushing the next key until “recall
mem” shows.
3. Press save to select the recall memory option. The
number of data in memory now shows (up to approx. 1350
values can be saved).
4. Press the next key to scroll through and view the data
(press the increase key to view the previous torque data).
5. Press the clear key when finished (you will be returned
to normal operation mode).
Note: The data number is shown in the upper right digits.
IMPORANT!
If you fill up the memory you will hear a beep when you
press the save key during operation. Clear memory if this
occurs..
%
%
04
100.0
50.00
2.000
0000
OR
8
0005
35.50
0005
9
To set a new target torque
(When % is the default limits mode)
1. Press and hold the limits key for 1 second.
(The current target torque shows with the first digit
blinking).
2. Use the increase and next key(s) to set the new target
torque (see “entering numbers” below).
3. Press the save key to accept the new target torque.
Note:
You will see the new target torque displayed in the
secondary set of digits when the limits mode is on. This
value will remain, even after turning the unit off, until you
either change the units of measure or plug in a new
transducer.
To recall the last cleared torque value
1. Press the recall key.
2. Press the clear key when finished viewing and return to
operation.
Note:
You can press the save key to save the recalled torque value
before pressing the clear key. This allows you to recall and
save a value that may have been accidentally cleared prior
to saving.
To save a torque value to memory
1. Press the save key to save the displayed torque value to
memory.
Note: If you press the save key when zero is displayed you
will store the zero value in memory. Use the clear key if
you do not want to save to memory but want to clear the
display.
To view the attached transducer information
1. Press the transducer keys.
2. Press clear when finished viewing the data.
Note:
The range is in the upper right digits.
The MV/v (cal factor) is in the lower digits.
Smart Transducers will show “Auto Xducer”
Menu functions:
There are many settings that can be changed or
viewed with the menu function.
1. Activate the menu function by pressing the mode and
units key at the same time (the display will show set-up).
2. Press the NEXT key to step through the various
options. See bleow for the functions available
Press the save key to select the option that is displayed.
To recall memory:
Each time you press the save key to clear the
display you save the cleared value to memory. To
recall and view memory values do the following:
1. Press menu keys (set-up icon comes on).
2. Press the next key once or until the ”recall mem” icon is
on (if you miss keep pushing the next key until “recall
mem” shows.
3. Press save to select the recall memory option. The
number of data in memory now shows (up to approx. 1350
values can be saved).
4. Press the next key to scroll through and view the data
(press the increase key to view the previous torque data).
5. Press the clear key when finished (you will be returned
to normal operation mode).
Note: The data number is shown in the upper right digits.
IMPORANT!
If you fill up the memory you will hear a beep when you
press the save key during operation. Clear memory if this
occurs..
0005
Exit without erasing
Erase Memory
or
500
SEL 3
1000
SEL 4
Select
Filter 3
500 Hz
…
10
send
On
02
%
%
On %
On
…
11
To Send memory to a printer or computer
1. Attach the torque meter serial communication cable to
your printer or computer com port. (set thecom port baud
rate to 4800,8,n,1,hardware). Refer to your computer
manual for details on how to communicate with serial
devices.
2. Press the menu keys.
3. Press the next key twice or until the display shows send
mem.
4. Press the save key to select the send memory option.
5. The data in memory will now be sent (the data number
will count down as the data is sent out the serial port).
See “printing and sending data” later in this manual for
more information.
To Erase Memory
1. Press the menu keys.
2. Press the next key three times or until the ”Erase mem”
icon shows.
3. Press the save key to select the erase memory function
(the display will blink giving you a second chance to decide
if you really want to erase memory).
4. Press the save key again to confirm and erase the
memory or press clear to exit without erasing memory.
To Change Filter Settings
The Filter function is an important feature that
allows you to help filter out unwanted “noise”
when testing power tools. Noise will show up as
occasional high peaks in power tool readings.
1. Press the menu keys.
2. Press the next key four times or until “filter” is shown.
3. Press the save key to select the filter function.
4. Press the next key until the desired filter is shown.
5. Press the save key to store the new filter setting.
Note:
The standard filter setting is 500 Hz for hand type
applications and 1500 Hz for power tool applications.
Filters are used to “screen” out any non-torque noise or
vibration that may be input from a high speed power tool.
Use a lower filter setting if you are getting occasional
spikes in the readings.
To select and change the % tolerance value from
the current setting
1. Press the menu keys.
2. Press the next key 5 times or until “tolerance” shows.
3. Press the save key to select the tolerance function.
4. Press the next key until “% On” shows.
5. Press the save key.
6. Enter the new % value (01-99%) with the increase and
next keys (see “entering numbers”).
7. Press the save key when the value is correct.
Tolerance vs High Low (Go/No Go Calculation)
To make high/low limits the default tolerance
mode
1. Press the menu keys.
2. Press the next key 5 times or until “tolerance” shows.
3. Press the save key to select the tolerance function.
4. Press the next key until the high/low arrows show.
5. Press the save key to store the new tolerance setting.
Note:
Once you change the tolerance mode it will become the
new default tolerance mode each time the torque meter is
turned on.
Now when you set the limits (press and hold the limits
on/off key) you will be prompted to set the high and low
limits instead of the target torque.
0005
Exit without erasing
Erase Memory
or
500
SEL 3
1000
SEL 4
Select
Filter 3
500 Hz
…
10
send
On
02
%
%
On %
On
…
11
To Send memory to a printer or computer
1. Attach the torque meter serial communication cable to
your printer or computer com port. (set thecom port baud
rate to 4800,8,n,1,hardware). Refer to your computer
manual for details on how to communicate with serial
devices.
2. Press the menu keys.
3. Press the next key twice or until the display shows send
mem.
4. Press the save key to select the send memory option.
5. The data in memory will now be sent (the data number
will count down as the data is sent out the serial port).
See “printing and sending data” later in this manual for
more information.
To Erase Memory
1. Press the menu keys.
2. Press the next key three times or until the ”Erase mem”
icon shows.
3. Press the save key to select the erase memory function
(the display will blink giving you a second chance to decide
if you really want to erase memory).
4. Press the save key again to confirm and erase the
memory or press clear to exit without erasing memory.
To Change Filter Settings
The Filter function is an important feature that
allows you to help filter out unwanted “noise”
when testing power tools. Noise will show up as
occasional high peaks in power tool readings.
1. Press the menu keys.
2. Press the next key four times or until “filter” is shown.
3. Press the save key to select the filter function.
4. Press the next key until the desired filter is shown.
5. Press the save key to store the new filter setting.
Note:
The standard filter setting is 500 Hz for hand type
applications and 1500 Hz for power tool applications.
Filters are used to “screen” out any non-torque noise or
vibration that may be input from a high speed power tool.
Use a lower filter setting if you are getting occasional
spikes in the readings.
To select and change the % tolerance value from
the current setting
1. Press the menu keys.
2. Press the next key 5 times or until “tolerance” shows.
3. Press the save key to select the tolerance function.
4. Press the next key until “% On” shows.
5. Press the save key.
6. Enter the new % value (01-99%) with the increase and
next keys (see “entering numbers”).
7. Press the save key when the value is correct.
Tolerance vs High Low (Go/No Go Calculation)
To make high/low limits the default tolerance
mode
1. Press the menu keys.
2. Press the next key 5 times or until “tolerance” shows.
3. Press the save key to select the tolerance function.
4. Press the next key until the high/low arrows show.
5. Press the save key to store the new tolerance setting.
Note:
Once you change the tolerance mode it will become the
new default tolerance mode each time the torque meter is
turned on.
Now when you set the limits (press and hold the limits
on/off key) you will be prompted to set the high and low
limits instead of the target torque.
. . .
…
…
AUto...OFF...1sec.....9sec
hold to change
12
0005
000.0
100.0
100.0
13
To change the display clear method
1. Press the menu keys.
2. Press the next key 6 times or until the “Auto
Reset” icon shows.
3. Press the save key to select the Auto Reset
function.
4. Press the next key until:
“AUt0” shows (Auto sense)
“Off” (manual clear using the clear key)
“1…….9” (seconds before the display clears
itself)
5. Press the save key to store new setting.
Note:
If auto sense is selected the torque meter will
automatically clear the display when a new
torque cycle begins. This means that you do not
have to continually reach up and clear the display
manually.
Entering the limits (tolerance) settings.
1. From the operation mode press and hold the
limits on/off key.
If you have set the % function set then the meter
will prompt you to enter the target tolerance (it will
automatically calculate the limits).
If you have the high/low function set then the
meter will first prompt you to enter the low limit
and then the high limit.
Power saving standby mode
When the torque meter has not been used for
approximately 3 minutes it will go into the power
down or “standby” mode. The display will show
“. . .”.
Press the clear key to get back to normal
operation. For the longest life from the batteries
turn the meter off when not used.
Entering Numbers
When a number needs to be entered or changed a
default value (or the last value entered) will be
shown.
The active digit that can be changed will blink.
Press the increase key to increase the value of the
blinking digit.
Press the next key to go to the next digit.
Press the increase key to increase the value of the
blinking digit.
Repeat for digits 3 and 4.
When the number is correct, press the save key to
save the new value.
Zeroing the display
If you press the increase and next keys at the same
time you will “Zero” the unit. Make sure that there
is no load on the transducer when pressing the zero
keys. The meter will not read torque until
approximately 2% of the transducer range has been
reached, therefore you should zero the unit even
when the display shows zero when changing
directions. The meter also does an automatic zero
when the power is turned on.
IMPORTANT!
Always zero the unit when changing direction. If you plan to use the meter in the
counterclockwise direction load the transducer three times in the counterclockwise
direction (to full scale) and then zero the display. Press the zero keys even if the display
shows “000.0” This will compensate for small amounts of hysteresis (hysteresis is a natural
characteristic of steel).
. . .
…
…
AUto...OFF...1sec.....9sec
hold to change
12
0005
000.0
100.0
100.0
13
To change the display clear method
1. Press the menu keys.
2. Press the next key 6 times or until the “Auto
Reset” icon shows.
3. Press the save key to select the Auto Reset
function.
4. Press the next key until:
“AUt0” shows (Auto sense)
“Off” (manual clear using the clear key)
“1…….9” (seconds before the display clears
itself)
5. Press the save key to store new setting.
Note:
If auto sense is selected the torque meter will
automatically clear the display when a new
torque cycle begins. This means that you do not
have to continually reach up and clear the display
manually.
Entering the limits (tolerance) settings.
1. From the operation mode press and hold the
limits on/off key.
If you have set the % function set then the meter
will prompt you to enter the target tolerance (it will
automatically calculate the limits).
If you have the high/low function set then the
meter will first prompt you to enter the low limit
and then the high limit.
Power saving standby mode
When the torque meter has not been used for
approximately 3 minutes it will go into the power
down or “standby” mode. The display will show
“. . .”.
Press the clear key to get back to normal
operation. For the longest life from the batteries
turn the meter off when not used.
Entering Numbers
When a number needs to be entered or changed a
default value (or the last value entered) will be
shown.
The active digit that can be changed will blink.
Press the increase key to increase the value of the
blinking digit.
Press the next key to go to the next digit.
Press the increase key to increase the value of the
blinking digit.
Repeat for digits 3 and 4.
When the number is correct, press the save key to
save the new value.
Zeroing the display
If you press the increase and next keys at the same
time you will “Zero” the unit. Make sure that there
is no load on the transducer when pressing the zero
keys. The meter will not read torque until
approximately 2% of the transducer range has been
reached, therefore you should zero the unit even
when the display shows zero when changing
directions. The meter also does an automatic zero
when the power is turned on.
IMPORTANT!
Always zero the unit when changing direction. If you plan to use the meter in the
counterclockwise direction load the transducer three times in the counterclockwise
direction (to full scale) and then zero the display. Press the zero keys even if the display
shows “000.0” This will compensate for small amounts of hysteresis (hysteresis is a natural
characteristic of steel).
Cable pointing down
Correct position for testing torque extensions
Cable Cable
F
Mount this end
Attach arm this end
14
Transducer mounting positions/dimensions
for bench mount style torque transducers (up to 600 ft.lb.):
Warning!
Always make sure the bench is strong enough and will not tip wen applying torque
Bolting the bench to the ground may be necessary on higher range transducers.
Make sure the cable is pointing down (4 O’CLOCK POSITION) when mounted on a
bench. This will place the primary axis in the correct position for greatest accuracy.
15
JETCO optional part # BKT-4 mounting bracket (transducers up to 600 ft.lb.).
Torque Sensors and OVERLOAD
Torque transducers are designed to give years of reliable operation if treated properly.
Torque transducers are sensitive electro-mechanical measurement devices and should
be handled with care.
Never over-torque a transducer beyond its usable range. It is good practice, when
possible, to select a transducer that is at least 25% greater in range than the expected
torque it will apply. This may help avoid accidental over-torque.
The torque transducers that are supplied with the torque meter will accept up to 50%
over torque without damage. However, if this should occur we recommend that you
return the unit for a calibration check.
The torque meter has an audible warning system that will alert you if you have
exceeded the usable range of the transducer. A constant beeping sound will occur.
The display will ramp out at approximately 3% over the maximum torque rating of
the transducer. Stop applying torque when you hear this sound, and press the clear
key to stop the buzzing.
Cable pointing down
Correct position for testing torque extensions
Cable Cable
F
Mount this end
Attach arm this end
14
Transducer mounting positions/dimensions
for bench mount style torque transducers (up to 600 ft.lb.):
Warning!
Always make sure the bench is strong enough and will not tip wen applying torque
Bolting the bench to the ground may be necessary on higher range transducers.
Make sure the cable is pointing down (4 O’CLOCK POSITION) when mounted on a
bench. This will place the primary axis in the correct position for greatest accuracy.
15
JETCO optional part # BKT-4 mounting bracket (transducers up to 600 ft.lb.).
Torque Sensors and OVERLOAD
Torque transducers are designed to give years of reliable operation if treated properly.
Torque transducers are sensitive electro-mechanical measurement devices and should
be handled with care.
Never over-torque a transducer beyond its usable range. It is good practice, when
possible, to select a transducer that is at least 25% greater in range than the expected
torque it will apply. This may help avoid accidental over-torque.
The torque transducers that are supplied with the torque meter will accept up to 50%
over torque without damage. However, if this should occur we recommend that you
return the unit for a calibration check.
The torque meter has an audible warning system that will alert you if you have
exceeded the usable range of the transducer. A constant beeping sound will occur.
The display will ramp out at approximately 3% over the maximum torque rating of
the transducer. Stop applying torque when you hear this sound, and press the clear
key to stop the buzzing.
16 17
Checking for accuracy
The Torque Meter and torque transducers are factory calibrated and should be checked on
a regular basis. We recommend that, provided the transducers are used according to this
manual, they be re-certified yearly. Since the frequency of use, among other factors, may
affect the calibration, the user must determine the best calibration interval.
It is important to use the correct arm length since arms that are too short may create
excessive bending loads that are not present during normal operation.
Recommended torque arm lengths:
4” arm (wheel) up to 100 in lb transducers
10” arm (wheel) 250 in.lb to 50 ft. lb.
24” 150 ft.lb. to 250 ft.lb.
48” 500 ft. lb. and up
These arm lengths closely represent the length of typical wrenches that will be used on
the transducers. They also allow for usually no more than 150 lbs of weights, which also
represents the “typical” amount of force required to generate the torque with a wrench.
Do not use a 10” arm to calibrate a 250 ft. lb. transducer. This would require 300 lbs of
weights, this is not good for the transducer and is not representative of the typical weight
needed to generate 250 ft.lb. applied by a person. Most conventional torque wrenches are
designed to be long enough to allow no more than 150-175 lb person to generate the force
required to generate the needed torque. Using the above arm lengths will be consistent
with this philosophy.
The accuracy of the meter is such that any incorrect zero caused by out of balance arms,
mis-alignment or sloppy adapters used on the torque arm system may cause a
“perceived”out of tolerance condition. This can happen when you use a female drive
torque arm on a female drive transducer and use a male-male adapter in between with too
much play. It can also happen when you use an adapter to reduce a ½” female drive arm
down to a 3/8” female drive using an off-the-shelf adapter. For this reason you must
always use the proper drive arm with the transducer. If the transducer is a ½” female
drive then you must use a ½” male drive torque arm to eliminate errors.
Even benches that are not flat or deflect during high load calibrations are unacceptable.
In this case the transducer will not be perpendicular with the weights and this mightl
show on the meter (yes the meter is that sensitive), resulting in a possible out of tolerance
condition.
Procedure for checking accuracy
Transducers are calibrated to within .5% (bench type) or 1% extension type
IV +/- .1 at the factory. If you require greater accuracy you can bypass the
smart chip in the transducer and perform a manual calibration on
transducers. This will account for variations in torque arm calibration
systems.
IMPORTANT!
YOU MUST ALWAYS DO THE FOLLOWING:
MOUNT THE TRANSDUCER SO THE CABLE IS POINTING DOWN.
PUT THE METER IN TRACK MODE.
1. NEVER USE A TORQUE ARM THAT IS NOT BALANCED ABOUT ZERO. A HIGH PRE-
LOAD,OR AN OPPOSITE DIRECTION PRE-LOAD REDUCES ACCURACY AND IS NOT
INDICATIVE OF REAL APPLICATIONS. A SLIGHT PRE-LOAD MAY, HOWEVER, BE
NECESSARY TO TAKE UP DRIVE TOLERANCES IN THE DIRECTION TO BE TESTED. A 1
OR 2 LB HANGER WEIGHT SHOULD BE SUFFICIENT.
2. ALWAYS APPLY FULL SCALE TORQUE, THREE TIMES, WITH WEIGHTS, IN THE
DIRECTION YOU ARE TESTING PRIOR TO RUNNING AN ACCURACY TEST.
3. AFTER STEP 2 ABOVE, WAIT AT LEAST 30 SECONDS OR FOR THE WEIGHT HANGER
TO STABILIZE. SWINGING HANGERS WILL GIVE AN INCORRECT ZERO READING AND
MAY THROW OFF ACCURACY.
4. AFTER STEP 3 ABOVE PRESS THE ZERO BUTTONS (EVEN IF THE DISPLAY SHOWS
“000.0”) DO NOT PRESS THEM AGAIN UNTIL YOU START A COMPLETE NEW TEST
CYCLE (STARTING FROM STEP 1 ABOVE).
5. AFTER STEP 4 ABOVE APPLY 10% LOAD, LET THE HANGER STABILIZE AND CHECK
READING. DO NOT REMOVE THE WEIGHTS WHEN FINISHED CHECKING AT THIS
POINT.
6. AFTER STEP 5 ABOVE APPLY ADDITIONAL WEIGHTS TO THE HANGER TO BRING
THE TORQUE TO 50% OF LOAD AND CHECK READING. DO NOT REMOVE THE
WEIGHTS WHEN FINISHED CHECKING AT THIS POINT.
7. AFTER STEP 6 ABOVE APPLY ADDITIONAL WEIGHTS TO THE HANGER TO BRING
THE TORQUE TO 100% OF LOAD AND CHECK READING.
THE MAJORITY OF ACCURACY PROBLEMS OCCUR DUE TO INCORRECT LOADING
SEQUENCE, ZERO PROCEDURES AND TORQUE ARMS THAT ARE NOT IN BALANCE
WITH A SLIGHT PRE-LOAD IN THE DIRECTION TO BE CHECKED.
16 17
Checking for accuracy
The Torque Meter and torque transducers are factory calibrated and should be checked on
a regular basis. We recommend that, provided the transducers are used according to this
manual, they be re-certified yearly. Since the frequency of use, among other factors, may
affect the calibration, the user must determine the best calibration interval.
It is important to use the correct arm length since arms that are too short may create
excessive bending loads that are not present during normal operation.
Recommended torque arm lengths:
4” arm (wheel) up to 100 in lb transducers
10” arm (wheel) 250 in.lb to 50 ft. lb.
24” 150 ft.lb. to 250 ft.lb.
48” 500 ft. lb. and up
These arm lengths closely represent the length of typical wrenches that will be used on
the transducers. They also allow for usually no more than 150 lbs of weights, which also
represents the “typical” amount of force required to generate the torque with a wrench.
Do not use a 10” arm to calibrate a 250 ft. lb. transducer. This would require 300 lbs of
weights, this is not good for the transducer and is not representative of the typical weight
needed to generate 250 ft.lb. applied by a person. Most conventional torque wrenches are
designed to be long enough to allow no more than 150-175 lb person to generate the force
required to generate the needed torque. Using the above arm lengths will be consistent
with this philosophy.
The accuracy of the meter is such that any incorrect zero caused by out of balance arms,
mis-alignment or sloppy adapters used on the torque arm system may cause a
“perceived”out of tolerance condition. This can happen when you use a female drive
torque arm on a female drive transducer and use a male-male adapter in between with too
much play. It can also happen when you use an adapter to reduce a ½” female drive arm
down to a 3/8” female drive using an off-the-shelf adapter. For this reason you must
always use the proper drive arm with the transducer. If the transducer is a ½” female
drive then you must use a ½” male drive torque arm to eliminate errors.
Even benches that are not flat or deflect during high load calibrations are unacceptable.
In this case the transducer will not be perpendicular with the weights and this mightl
show on the meter (yes the meter is that sensitive), resulting in a possible out of tolerance
condition.
Procedure for checking accuracy
Transducers are calibrated to within .5% (bench type) or 1% extension type
IV +/- .1 at the factory. If you require greater accuracy you can bypass the
smart chip in the transducer and perform a manual calibration on
transducers. This will account for variations in torque arm calibration
systems.
IMPORTANT!
YOU MUST ALWAYS DO THE FOLLOWING:
MOUNT THE TRANSDUCER SO THE CABLE IS POINTING DOWN.
PUT THE METER IN TRACK MODE.
1. NEVER USE A TORQUE ARM THAT IS NOT BALANCED ABOUT ZERO. A HIGH PRE-
LOAD,OR AN OPPOSITE DIRECTION PRE-LOAD REDUCES ACCURACY AND IS NOT
INDICATIVE OF REAL APPLICATIONS. A SLIGHT PRE-LOAD MAY, HOWEVER, BE
NECESSARY TO TAKE UP DRIVE TOLERANCES IN THE DIRECTION TO BE TESTED. A 1
OR 2 LB HANGER WEIGHT SHOULD BE SUFFICIENT.
2. ALWAYS APPLY FULL SCALE TORQUE, THREE TIMES, WITH WEIGHTS, IN THE
DIRECTION YOU ARE TESTING PRIOR TO RUNNING AN ACCURACY TEST.
3. AFTER STEP 2 ABOVE, WAIT AT LEAST 30 SECONDS OR FOR THE WEIGHT HANGER
TO STABILIZE. SWINGING HANGERS WILL GIVE AN INCORRECT ZERO READING AND
MAY THROW OFF ACCURACY.
4. AFTER STEP 3 ABOVE PRESS THE ZERO BUTTONS (EVEN IF THE DISPLAY SHOWS
“000.0”) DO NOT PRESS THEM AGAIN UNTIL YOU START A COMPLETE NEW TEST
CYCLE (STARTING FROM STEP 1 ABOVE).
5. AFTER STEP 4 ABOVE APPLY 10% LOAD, LET THE HANGER STABILIZE AND CHECK
READING. DO NOT REMOVE THE WEIGHTS WHEN FINISHED CHECKING AT THIS
POINT.
6. AFTER STEP 5 ABOVE APPLY ADDITIONAL WEIGHTS TO THE HANGER TO BRING
THE TORQUE TO 50% OF LOAD AND CHECK READING. DO NOT REMOVE THE
WEIGHTS WHEN FINISHED CHECKING AT THIS POINT.
7. AFTER STEP 6 ABOVE APPLY ADDITIONAL WEIGHTS TO THE HANGER TO BRING
THE TORQUE TO 100% OF LOAD AND CHECK READING.
THE MAJORITY OF ACCURACY PROBLEMS OCCUR DUE TO INCORRECT LOADING
SEQUENCE, ZERO PROCEDURES AND TORQUE ARMS THAT ARE NOT IN BALANCE
WITH A SLIGHT PRE-LOAD IN THE DIRECTION TO BE CHECKED.
18 19
Calibrating the torque transducer:
You can not change the information on the smart chip within the transducer. If the
values on the chip need to be changed then one of two things MAY have happened:
1. The torque arm system, or the procedure, is introducing errors that when added are
creating an out of tolerance situation (SEE ACCURACY CHECKING ABOVE)..
2. The transducer has been damaged and needs repair (usually shown by significant
errors). If this is the case return the transducer for repair or re-calibration.
Bypassing the smart transducer feature.
If you want to bypass the smart chip calibration data, and use the calibration data that
you create with your torque arms, you can do so by assigning a “custom” transducer
number to the transducer and manually calibrating it using your own dead weight
system. This method stores the calibration data for the transducer in the memory of the
meter, not in the memory chip inside the transducer. In order to use the custom
transducer data you must select the custom transducer number when you power on the
unit (see selecting custom transducers below). If you do not select the custom
transducer number the meter will revert to the calibration data on the chip inside the
transducer.
You can tell if the system is using the smart chip inside the transducer if, after pressing
the transducer keys you see the words “auto Xducer”. You will see the words “custom”
transducer if you have selected the transducer manually.
To manually calibrate a “custom” transducer
1. From normal operation mode press the menu buttons
2. Press the next key until the word “CAL” is displayed. Press the save key to select
the cal option.
The current default custom transducer number (01 to 15), will show and flash (unless it
is a smart transducer in which case you must press the next key to select a custom
transducer number).
Press the next key until the desired custom transducer number is shown (mark this
number on the transducer for future reference).
Note: The current transducer settings for the transducer number will show as you scroll
through the transducers, all default values are “9999” or “1000” and 2.000 Mv/v.
Press the save key to select the desired transducer number.
The current full-scale range will now be displayed (will default to “9999” if this number
has never been assigned) with the first number flashing (do not worry about the
position of the decimal, that will be set next).
3. Press the increase and key to make the digits read the full-scale range of the transducer
you are going to calibrate. Press the save key
4. Now set the decimal position with the next key (keep pressing until you see the decimal
point)..
Press the Save key.
5. Set the units by pressing he units key. Press Save.
6. Set the estimated clockwise (cw) Mv/v (if known, use 2.000 if not known). Press Save.
7. Set the Counterclockwise (ccw) Mv/v (if known, use 2.000 of not known). Press Save.
8. The display will now show “calc” (more on “calc” later). Press the next key until the
unit shows “cert”. which means you are going to calibrate (certify) a transducer with dead
weights.
The display will now show “CCW CAL0” This means it is ready to take a
counterclockwise zero reading.
SEE ACCURACY CHECKING PROCEDURES FOR THE PROPER METHOD TO
LOAD A TRANSDUCER.
9. Load the transducer, with a balanced arm and a slight pre-load, in the counter clockwise
direction three times to full scale with dead weights, and remove the weights but not the
arm and pre-load hanger. Wait 30 seconds or for the hanger to settle and press the Zero
buttons (even if the display shows 000.0).
The Display will now show “CCW FS” which is prompting you to apply the Full-Scale
weights to the arm in the counterclockwise direction.. Apply the full-scale weights in the
counterclockwise direction, stabilize the weights and press the save key.
Make the display read the full-scale counterclockwise value (within tolerance) with the
increase and next keys. Press the save key.
10. The display will now read “CW CAL0”. This means the meter is ready to read the
clockwise zero reading. Load the transducer, with a balanced arm and slight pre-load, in
the clockwise direction three times to full scale with dead weights, and remove the weights
but not the arm and pre-load. Wait 30 seconds or for the hanger to settle and press the
Zero buttons (even if the display shows 000.0).
The display will now show “CW FS” which means load the arm to full scale in the
clockwise direction. Press the save key.
Make the display read as close as possible to the full scale clockwise value by pressing
the increase and next keys.
Press the save key.
You will now exit and be in the track mode with the display reading the calibrated full
scale clockwise value. The calibration data you just created will be saved in the memory of
the meter, under the custom transducer number you assigned to that transducer.
From now on, if you want to use the manual calibration values that you just entered you
18 19
Calibrating the torque transducer:
You can not change the information on the smart chip within the transducer. If the
values on the chip need to be changed then one of two things MAY have happened:
1. The torque arm system, or the procedure, is introducing errors that when added are
creating an out of tolerance situation (SEE ACCURACY CHECKING ABOVE)..
2. The transducer has been damaged and needs repair (usually shown by significant
errors). If this is the case return the transducer for repair or re-calibration.
Bypassing the smart transducer feature.
If you want to bypass the smart chip calibration data, and use the calibration data that
you create with your torque arms, you can do so by assigning a “custom” transducer
number to the transducer and manually calibrating it using your own dead weight
system. This method stores the calibration data for the transducer in the memory of the
meter, not in the memory chip inside the transducer. In order to use the custom
transducer data you must select the custom transducer number when you power on the
unit (see selecting custom transducers below). If you do not select the custom
transducer number the meter will revert to the calibration data on the chip inside the
transducer.
You can tell if the system is using the smart chip inside the transducer if, after pressing
the transducer keys you see the words “auto Xducer”. You will see the words “custom”
transducer if you have selected the transducer manually.
To manually calibrate a “custom” transducer
1. From normal operation mode press the menu buttons
2. Press the next key until the word “CAL” is displayed. Press the save key to select
the cal option.
The current default custom transducer number (01 to 15), will show and flash (unless it
is a smart transducer in which case you must press the next key to select a custom
transducer number).
Press the next key until the desired custom transducer number is shown (mark this
number on the transducer for future reference).
Note: The current transducer settings for the transducer number will show as you scroll
through the transducers, all default values are “9999” or “1000” and 2.000 Mv/v.
Press the save key to select the desired transducer number.
The current full-scale range will now be displayed (will default to “9999” if this number
has never been assigned) with the first number flashing (do not worry about the
position of the decimal, that will be set next).
3. Press the increase and key to make the digits read the full-scale range of the transducer
you are going to calibrate. Press the save key
4. Now set the decimal position with the next key (keep pressing until you see the decimal
point)..
Press the Save key.
5. Set the units by pressing he units key. Press Save.
6. Set the estimated clockwise (cw) Mv/v (if known, use 2.000 if not known). Press Save.
7. Set the Counterclockwise (ccw) Mv/v (if known, use 2.000 of not known). Press Save.
8. The display will now show “calc” (more on “calc” later). Press the next key until the
unit shows “cert”. which means you are going to calibrate (certify) a transducer with dead
weights.
The display will now show “CCW CAL0” This means it is ready to take a
counterclockwise zero reading.
SEE ACCURACY CHECKING PROCEDURES FOR THE PROPER METHOD TO
LOAD A TRANSDUCER.
9. Load the transducer, with a balanced arm and a slight pre-load, in the counter clockwise
direction three times to full scale with dead weights, and remove the weights but not the
arm and pre-load hanger. Wait 30 seconds or for the hanger to settle and press the Zero
buttons (even if the display shows 000.0).
The Display will now show “CCW FS” which is prompting you to apply the Full-Scale
weights to the arm in the counterclockwise direction.. Apply the full-scale weights in the
counterclockwise direction, stabilize the weights and press the save key.
Make the display read the full-scale counterclockwise value (within tolerance) with the
increase and next keys. Press the save key.
10. The display will now read “CW CAL0”. This means the meter is ready to read the
clockwise zero reading. Load the transducer, with a balanced arm and slight pre-load, in
the clockwise direction three times to full scale with dead weights, and remove the weights
but not the arm and pre-load. Wait 30 seconds or for the hanger to settle and press the
Zero buttons (even if the display shows 000.0).
The display will now show “CW FS” which means load the arm to full scale in the
clockwise direction. Press the save key.
Make the display read as close as possible to the full scale clockwise value by pressing
the increase and next keys.
Press the save key.
You will now exit and be in the track mode with the display reading the calibrated full
scale clockwise value. The calibration data you just created will be saved in the memory of
the meter, under the custom transducer number you assigned to that transducer.
From now on, if you want to use the manual calibration values that you just entered you
20
+
Make sure battery is placed with + side
as shown
21
simply need to select the proper transducer number when selecting custom transducers.
you do not have to re-select a smart transducer custom assigned number unless you have
disconnected the transducer from the meter.
You can repeat the above process adjusting the full scale value until the unit reads as
accurately as you desire at any point on the scale.
Selecting custom transducers:
If you have a non-smart custom transducer that you have calibrated manually, per the
above procedure, the meter will automatically recognize that the attached transducer is not
smart and prompt you with a transducer number every time you turn on the meter. Simply
press the next key to select the proper transducer number, then press save and you will
enter the normal operation mode. The meter will always turn on with this transducer
number active (on non-smart transducers) and will use the calibration data that was entered
during the manual calibration process.
If you have a smart transducer and have also assigned it a custom transducer number you
do not have to re-select the custom number as long as you do not detach the transducer
(even after power down). If you have detached the transducer then the meter will re-read
the smart chip and use the smart data, not the custom data, when it is turned on. Select the
custom transducer in this case. Do this by pressing the transducer keys and pressing the
next key until the display shows the transducer number you have assigned to the
transducer. Press the save key and the unit will now use the calibration data that was
stored in the memory of the meter for that transducer. Remember, you only have to select
the custom transducer number after you have detached the transducer.
Printing and Sending Data
Note:
It is not within the scope of this manual to instruct the user how to set up his/her
computer or printer for data transfer. Please refer to the operation manual of your
particular printer or computer.
The torque meter operates with an industry standard RS232C communication port. You
can use a program as simple as “Hyperterminal” that comes standard with Windows or
any third party data logging software.
The torque meter sends data is as follows:
RS232C, 4800, 8, 1, n
Refer to your computer or printer operation manual for a description of these settings.
The torque meter will send data out the communication port under the following
circumstances:
When the save key is pressed the data on the display will be sent (and saved).
When the “send mem” function is selected, from the menu function, it will send all the
data in memory.
When the recall key is pressed and held for 1 second the torque meter will send the torque
value on the display.
Battery and Power
The torque meter uses either a common 9 volt battery (gives longest life) or a rechargeable 9
volt battery (supplied standard for convenience).
Battery life depends significantly on the type of battery used. Non-rechargeable lithium ion 9-
volt batteries may last up to 40 hours. Common alkaline batteries may last up to 20 hours.
It is recommended that if you are going to use the meter on battery power that you keep a
standard 9 volt battery as a backup, or an additional charged 9 volt battery. Any common NmH
re-chargeable 9 volt battery can be used in the torque meter.
The Torque meter has a power down (sleep) mode that will activate after approximately 3
minutes without use. This mode still uses battery power so best to turn the meter off if not used
for any length of time.
Press the clear key to resume operation when the power down mode is active (depicted by
“…” on the display). The sleep mode still takes power so if you are on battery power it is best
to turn the meter off when not in use, this will result in longest battery life.
The torque meter will show a “B” icon on the display when the battery is low and will show a
“B” with two dashes “- -“ on the main digits when the batteries are critically low. The time
between low battery and critically low battery may vary depending on the state and type of
battery.
The torque meter can be used while the batteries are charging with no adverse effect.
The supplied power adapter is a trickle charger that will take at least 14 hours to charge a 9 volt
battery. You can use any standard external quick charger to charge the 9 volt battery.
This manual suits for next models
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