Jetco Torque Tools ED SERIES User manual

ED SERIES ELECTRONIC
TORQUE WRENCH
www.itorque.com
Thank you for buying a JETCO product
Document No: INSM001
OWNER'S MANUAL
Jetco Torque Tools
Rev 12.10.18

INTRODUCTION
1Jetco Torque Tools
Congratulations! You have purchased the most accurate, durable and easy to use electronic torque
wrench on the market. You will find this torque wrench can compete with other products costing 4
times as much. This wrench was made to be used as a tool and not as a high cost, fragile display
that only a quality control person could figure out. Turn it on and apply the torque. It’s that easy!
A significant advantage this wrench has over other more expensive wrenches is that it samples
torque fast enough so you do not need to pull slowly on the wrench. Other wrenches will not capture
the actual peak torque when you pull on the wrench at normal speeds. Simply put, this wrench is a
“Hot Rod”. It samples torque at a blazing rate of over 2,500 samples per second compared to as low
as 250 per second from the competition.
Did you know with conventional mechanical torque wrenches (clickers) you can easily over torque
the fastener by as much as 100%! This is because even though the wrench may have “clicked” at the
target torque setting the user probably did not stop pushing on the wrench until much higher torque
was achieved. There is no way of knowing what the user actually torqued the fastener to.
With this new torque wrench, not only will you see exactly what torque you applied, you will be shown
a red light and buzzer if you over torque the fastener. This results in more accurate torquing and less
problems with broken bolts, warped heads, warped brake rotors etc..
Choose the power option and you have a wrench that will output data to a computer and has internal
rechargeable batteries.
For additional features, visit our website at www.itorque.com.
Thank you for choosing Jetco Torque Tools!
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WARNING
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GENERAL DISCLAIMER
SAFETY WARNINGS
Jetco Torque Tools 2 www.itorque.com
Before operating this tool, please read and follow all safety precautions
found in this owner's manual. Improper and unsafe use of this tool can
result in serious bodily injury! Please keep this manual available for
future reference.
Always wear safety glasses when operating any torque tool.
Always use the proper range torque wrench for the application. Over torque may result in damage
or failure of the tool which can result in personal injury. Under torque may result in
an incorrectly tightened fastener that could loosen resulting in failure at a later date.
Do not use tools for jobs which they are not intended for. Never use a torque wrench to loosen a
bolt/screw.
Never apply torque in a situation where tool breakage may result in a fall or slip resulting in
personal injury. Pulling on the wrench as opposed to pushing may help in this situation.
Always replace worn or rounded fasteners prior to applying torque. Slippage may occur resulting in
personal injury.
Examine each tool for damage prior to use and never use if damaged.
When not in use, the tool should be stored in a dry place.
Keep handles dry, clean, and free from oil and grease to prevent slippage.
While the information in this document has been presented with all due care, Jetco Torque Tools LLC does not warrant or
represent that the information is free from errors or omission. This information is made available on the understanding that
Jetco Torque Tools LLC shall have no liability to the user for any loss, damage, cost or expense incurred or arising by any
person using or relying on the information and whether caused by reason of any error, negligent act, omission or
misrepresentation in the information or otherwise. Jetco Torque Tools LLC reserves the right to change information
without notice.

INSTALLING BATTERIES
Fig. 1
Fig. 2
ROTATING THE DISPLAY
POWER ON
Fig. 3
Jetco Torque Tools
Do not install non-rechargeable batteries
in Power wrenches ("-P" and "-USB"
models) or damage will occur.
Do not overtighten screws.
NOTE:
■ "BATT" icon will turn on when the batteries are
low. When batteries are critically low the wrench will
not turn on.
■ Battery pack must be inserted in the correct
orientation to make contact with the circuit board
inside.
■ Models with the "Power" Option will include
rechargeable batteries. Do not install
non-rechargeable batteries in these models or
damage will occur.
■ Battery life is dependant on battery quality and
how often the lights and buzzer are used. Typical
life is up to 50 hours. Use high quality lithium
batteries for longest life.
OPERATION
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See Figure 2
■ To turn on, press and hold the power button.
NOTE:
■ If the wrench is not used for approximately
30 minutes it will automatically shut off.
■ Do not turn on the wrench while torque is applied.
■ If the wrench comes on and then shuts off
immediately the batteries are probably low.
■ All previous stored settings (units, target, value,
taget %) are stored even when the power is off and
the batteries are out of the wrench.
See Figure 3
■ For a better viewing angle, rotate the display
by holding on to the bezel and turning it clockwise
or counter-clockwise.
See Figure 1
■ Wrenches up to 50ft-lb take a battery pack
containing 4x AAA non-rechargeable batteries. All
other wrenches take a 9V battery.
■ To install a battery pack, remove the 2 screws
that hold the end cap and insert the battery pack
with the spring contacts on the top as shown.
WARNING:
Power Button

SET TARGET TORQUE
APPLYING TORQUE
CHANGING UNITS
Yellow
Green
Red
ZERO/TARE FUNCTION
Target Keys
Fig. 4
Jetco Torque Tools 4 www.itorque.com
For security, it takes two key presses to
change the units.
Unit
Indicator
See Figure 4
■ With the wrench on, press and hold the
power/clear button for no more than 3 seconds.
(holding it for more then 3 seconds will turn off the
wrench). Then press the Target + button to change
units.
ATTENTION:
See Figure 4
■ The YELLOW LED on the display will turn on to
notify the user the applied torque is approaching
the target value. This will occur at
approximately 85% of the target value.
■ The GREEN LED will turn on when the applied
torque is within tolerance of the target value.
Default tolerance is ±1%.
■ The RED LED will turn on when the applied
torque has exceeded the maximum tolerance.
NOTE:
■ There are three ways the user can determine
when the target torque has been reached:
1. Looking directly at the LCD
2. Looking at the LED lights
3. Listening for the buzzer
OPERATION
See Figure 4
■ Press and hold the + target key to increase the
target value and - target key to decrease the target
value.
NOTE:
■ Press either target key once to see the current
value without making any changes. The target
vlaue will show for 3 seconds.
■ The longer you press and hold the target key the
faster the display will change.
See Figure 2
■ Press and hold the clear button for 1.5 seconds.
■ Display will show " ---- " indicating the wrench has
taken a new zero point (zero tare).
NOTE:
■ When you change the units, the target setting will
convert to the new units (makes a great torque
conversion calculator)
■ The units selected will become the default units
when the wrench is turned off and on again.
■ Units can be set to ft-lb, in-lb, and N-m as well
as in-oz and dN-m in some models.
■ The arrow will indicate what unit is being used

CHANGING TORQUE DIRECTION
PEAK HOLD AND TRACK MODE
CHANGING THE PASS/FAIL ZONE
CCW
Indicator
Fig. 5
Jetco Torque Tools 5 www.itorque.com
OPERATION
■ To maximize accuracy, JETCO recommends that
the user undergo the following procedure whenever
switching torque direction (from CW to CCW or vice
versa):
■ Before switching directions, load the torque
wrench to full scale 3 times in the direction you wish
to use the wrench in. If the wrench is currently
being used in the CW direction and the user wishes
to switch to CCW, load the wrench 3 times in the
CCW direction.
■ Zero/Tare the wrench.
NOTE:
See Figure 5
■ An arrow will be visible under "CCW" when the
wrench detects the torque being applied is in the
counter-clockwise direction.
■ Refer to the calibration procedure for more
information on zero/tare.
See Figure 4
■ When applying torque in PEAK HOLD mode, the
wrench will detect the highest torque applied and
display it on the screen.
■ The screen will show "PH" when in PEAK HOLD
mode.
■ In TRACK mode, the wrench will display the
torque reading on the screen in real time.
■ To switch between PEAK HOLD and TRACK
mode press the mode button.
See Figure 4
■ The default target torque zone the wrench is set
to is ±1%. This can be changed anywhere between
1-10% or it can be turned off.
■ To change or turn off the pass/fail zone, with the
wrench on hold the power button for no more than 3
seconds (holding it for more then 3 seconds will
turn off the wrench).
■ Press the Target " - " key. Keep pressing the
target " - " key until the desired value is shown.

POWER WRENCHES
4
3
2
RS232 KIT
1
USB KIT
Fig. 6
DB9 Serial Port
for data transfer
included with
"-P" Models
Fig. 7
1
5
2
4
3
Fig. 8
6 www.itorque.comJetco Torque Tools
See Figure 6 & 7
■ The following components are included with every
power wrench equipped with the RS232 kit
(-P Models):
1. 110 Volt Transformer
2. RS232/Power Adapter (DB9 Serial Port)
3. Data cable (standard 6 wire RJ11 cable)
4. Rechargeable AAA Batteries
■ Power wrenches (-P and -USB Models) are able
to:
1. Charge batteries while using the wrench
2. Use the wrench on external power (no
batteries)
3. Send torque information to a printer,
computer, or data logger.
4. Control the wrench remotely with a serial
"open source" command.
See Figure 8
■ The following components are included with every
power wrench equipped with the USB kit
(-USB Models):
1. 110V / 5V Transformer
2. USB Cable
3. Data cable (standard 6 wire RJ11 cable)
4. USB Adapter
5. Rechargeable AAA Batteries
OPERATION OF POWER WRENCHES

SENDING DATA TO A COMPUTER
Fig. 9
Fig. 10
CHARGING BATTERIES
Jetco Torque Tools
OPERATION OF POWER WRENCHES
7 www.itorque.com
■ Connect the data/power cable to the wrench.
■ RS232 Kit only: Connect the 110V transformer to
a wall outlet and batteries will begin to charge.
■ USB Kit only: Connect the USB cable to the USB
wall transformer or USB port on a computer and
batteries will begin to charge.
NOTE:
■ The wrench can be used while charging batteries
or on external power without batteries.
■ Batteries can be charged while sending data to a
computer.
WARNING:
Do not install non-rechargeable batteries
in Power wrenches ("-P" and "-USB"
models) or damage will occur.
NOTE:
■ To send data to a computer, the computer must
be equipped with software capable of capturing the
data sent by the wrench.
■ The following are some programs that are
recommended for this task:
- HyperTerminal (Included in some versions of
Windows)
- DATASNIP (free download)
- Winwedge or Winwedge Pro
Please contact JETCO if you have any
questions regarding the use of software.
SENDING DATA TO A COMPUTER
■ Plug the RS232 adapter into a 9 pin serial port on
your computer or if equipped with a USB cable,
plug it into a USB port on your computer.
■ RS232 Kit only: Plug in the 110V transformer into
a wall outlet.
■ Connect the data/power cable to the wrench.
■ Turn on the wrench and set the mode to PEAK
MODE.
■ Press the CLEAR key to send data to the
computer.
NOTE:
See Figure 9 & 10
■ The following information will be sent
automatically:
- Torque value (+ for CW, - for CCW)
- Units
- Target Torque Setting
- Target Zone Setting (%)
- Low/Pass/Fail Condition
■ Data is sent in standard ASCII text format.
Communication Protocal:
9600 Bps,8 data bits, no parity, 1 stop bit
■ To send information directly to a spreadsheet or
word processor, the user can copy and paste, save
and import text files (from Hyperterminal) or
download a "wedge" program that will send data
directly. DATASNIP is recommended, visit:
www.priority1design.com.au/datasnip.html
to download a free version of DATASNIP.

LIST OF ASCII COMMANDS
Jetco Torque Tools www.itorque.com8
Command Description Parameters
MMV
Or '?' DMM
Get / Set Setpoint Percent
CR at end
Command: DMM?<CR> or DMM<CR> Response: All saved torque readings Command: RMM<CR> Response: OK Command: RDP<CR> Response: OK
Get: Command: PER?<CR> or PER<CR> Response: Setpoint Percent Value Set: Command: PER,5<CR> = Set Setpoint % to 5% Response: OK
Clear torque memory contents Clear display and peak Change display units to Newton Meters Return current torque value Return torque memory contents CR at end or ? CR at end Change display units to foot pounds Change display units to inch pounds
Exmaple
Command: LBF<CR> Response: OK Command: LBS<CR> Response: OK Command: NMT<CR> Response: OK Command: MMV?<CR> or MMV<CR> or ?<CR> Response: Torque value
CR at end CR at end CR at end or ? CR at end If '?' alone, no CR is needed
LBF
LBS
NMT
CR at end or ? CR at end CR at end Get: CR at end or ? CR at end Set: PER,X or XX, = 0 to 10 %, 0 = OFF
RDP
PER
RMM

Parameters
CR at end or ? CR at end Get: CR at end or ? CR at end Set: SFP,X or XX or XXX
9Jetco Torque Tools
Description
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Get: CR at end or ? CR at end Set: SEA,X or XXX, = 0 to 360, 0 = OFF
LIST OF ASCII COMMANDS
ExmapleCommand
Get: Command: SET?<CR> or SET<CR> Response: Setpoint Value Set: Command: SET,50.0<CR> = Set Setpoint to 50.0 Response: OK
Get: CR at end or ? CR at end Set: SET,X or XXXXX
Get / Set SetpointSET
Command: BAT<CR> Response: Battery Level in percent full.
Get: Command: SFP?<CR> or SFP <CR> Response: First Peak setpoint in A/D counts Set: Command: SFP,300<CR> = Set First Peak setpoint to 300 counts. Range 1 to 999 counts. Response: OK Get: Command: SEA?<CR> or SEA <CR> Response: Angle Setpoint Value Set:
Command: SEA,5<CR> = Set Angle Setpoint to 5
degrees Response: OK
BAT SFP
SEA
SWO
Get Battery Level Get / Set First Peak A/D Count Get / Set Angle Setpoint Get / Set Auto Off Time
Get: CR at end or ? CR at end Set: SWO,X or XX
Get: Command: SWO?<CR> or SWO<CR> Response: Auto off time in minutes Set: Command: SWO,10<CR> = Set Auto off time to 10 minutes. Range 1 to 30 minutes. Response: OK

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CR at end
10Jetco Torque Tools
Power up in last saved mode.
LIST OF ASCII COMMANDS
ExmapleParametersDescriptionCommand
Get Version Set display peak torque mode
Get: Command: USR?<CR> or SWO<CR> Response: User set ID, 24 characters maximum. Set: Command: USR,123456789012345678901234<CR> = Set user ID to ‘123456789012345678901234. Response: OK Please note any spaces after the comma will be included.
Get: CR at end or ? CR at end Set: USR,(User ID) CR at end
Get / Set User Wrench ID USR
VER DPK DAV
PFP
Set display average torque mode Power up in first peak mode. CR at end
PLS
Command: VER<CR> Response: Software Version Number Command: DPK <CR> Response: Software Version Number Command: DAV <CR> Response: Software Version Number Command: PFP <CR> Response: OK
Get: CR at end or ? CR at end Get: CR at end or ? CR at end Get: CR at end or ? CR at end
Command: PLS <CR> Response: OK

Command
MFG
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Parameters
11Jetco Torque Tools
Description
LIST OF ASCII COMMANDS
Exmaple
Command: MFG?<CR> or MFG<CR>
Response: 12 character serial number in the
format: YYYYMMDDx123 where: YYYY = year MM = month DD = day x = firmware burning station 123 = serial number of device burned that day This number is loaded by the firmware burning station only. Log files are kept on the firmware burner with information on the electronics. The log file name will be YYYYMMDD, indicating the present date, and a new file will be started each day.
Get: CR at end or ? CR at endGet Manufacturer Serial Number

Parameters
CR at end CR at end
12Jetco Torque Tools
Description
LIST OF ASCII COMMANDS
ExmapleCommand
DTC
ETC
Return calibration full scale torque Return current peak CW torque value Return current peak CCW torque value Enable Options Changes
RFS
CLP
ALP
ENB
Command: ENK,1,0,1,1<CR> Enables: Units Changes Target Changes Target Tolerance Changes Disables: Mode Changes Response: OK
Get: CR at end or ? CR at end Set: KEY,1,1,1,1 CR at end Position 1 = Units Change, 1 = Enabled, 0 = Disabled Position 2 = Mode Change Position 3 = Target Change Position 4 = Target Tolerance Change
Enable / Disable Keypresses. Stores setting in EEPROM
ENK
Command: RFS?<CR> or CLP<CR> Response: Calibration full scale torque in ASCII Command: CLP?<CR> or CLP<CR> Response: Current peak CW torque value Command: ALP?<CR> or ALP<CR> Response: Current peak CCW torque value Command: ENB<CR> Response: OK
Get: CR at end or ? CR at end Get: CR at end or ? CR at end Get: CR at end or ? CR at end CR at end
Disable target changes. Allows viewing only. Enable target changes.
Command: DTC <CR> Response: OK Command: ETC <CR> Response: OK
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LIST OF ASCII COMMANDS
ExmapleParametersDescriptionCommand
Disable Options Changes Enable Setpoint Presets Disable Setpoint Presets
DIS
ENP
DIP
Command: DIS<CR> Response: OK Command: ENP <CR> Response: OK Command: DIP <CR> Response: OK
CR at end CR at end CR at end Get: RTT CR at end or ? CR at end Set: RTT, HH:MM:SS
Get: Command: RTC?<CR> or RTC<CR> Response: HH:MM:SS MM/DD/YY Set: Command: RTC,12:34:56 10/20/15<CR> = Set Real Time Clock to 12:34:56, October 20th, 2015 Response: OK Get: Command: RTT?<CR> or RTT <CR> Response: HH:MM:SS Set: Command: RTT,12:34:56<CR> = Set Real Time Clock to 12:34:56 Response: OK Get: Command: PRE,4?<CR> or PRE,4<CR> Response: Setpoint Preset #4 Value Set: Command: PRE,2,50.0<CR> = Set Setpoint Preset #2 to 50.0 Response: OK
Get: PRE,Y CR at end or ? CR at end Y = setpoint number 1 through 8 Set: PRE,Y,X or PRE,Y,XXXXX
Get / Set Setpoint PresetPRE
RTC Get / Set Real Time Clock
(Time and Date)
Get: RTC CR at end or ? CR at end Set: RTC,HH:MM:SS MM/DD/YY
RTT
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Get / Set Real Time Clock (Time only)

LIST OF ASCII COMMANDS
ExmapleCommand
ADT
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Parameters
CR at end
14Jetco Torque Tools
Description
Return the A/D torque reading
Command: ADT <CR> Response: Curre untared A/D torque reading
Get: Command: RTD?<CR> or RTD <CR> Response: HH:MM:SS Set: Command: RTD,10/20/15<CR> = Set Real Time Clock Date to October 20th, 2015 Response: OK
Torque response format (MMV command and DMM command): Character count, 60 message characters plus carriage return / linefeed = 62 maximum: 111111111122222222223333333333444444444455555555556 123456789012345678901234567890123456789012345678901234567890 | | || || || | | | | | | | | +139.7 ft-lbs, 185.0, OFF, 45 degrees Pass HH:MM:SS MM/DD/YY + 1669 in-lbs, 2220, 05%, 45 degrees Low HH:MM:SS MM/DD/YY +265.7 Nm , 250.9, 02%, 45 degrees High HH:MM:SS MM/DD/YY +182.4 ft-lbs, 185.0, 02%, 45 degrees Pass HH:MM:SS MM/DD/YY
CR at end CR at end Get: RTD CR at end or ? CR at end Set: RTD,MM/DD/YY
Get / Set Real Time Clock (Date only)
RTD
Command: ADA <CR> Response: Current raw A/D angle sensor reading Command: RST <CR> Electronics is reset back to powerup state. Response: none
Return the A/D angle reading Reset the electronics
ADA
RST

CALIBRATION PROCEDURE
Jetco Electronic Torque Wrench (REVO/EX and Electronic Dial Type) Calibration Procedures
Jetco Torque Tools 15 www.itorque.com
You must have the proper equipment to calibrate the electronic torque wrench.
Equipment required:
1. Certified NIST traceable torque tester with an accuracy of 0.5% or better
2. Loading means: Weights or torque loader.
The wrench is calibrated by loading it to 8 predetermined points (three clockwise and three
coutner-clockwise plus zero in each direction). The calibration must be done in the equivalent primary units of the wrench (in-lb
or ft-lb).
For example, to calibrate a 250 ft-lb wrench you must have the ability to accurately apply 25.00 ft-lb (10% of full scale), 125.0 ft-
lb (50%) and 250.0 ft-lb (100%) in both the cw and
ccw direction.
Test Accuracy Procedure:
1. Turn the wrench on with NO torque applied (not installed in the loader and no hanging on a transducer). Put the
wrench in TRACK mode by holding the power button and then press the tolerance + key one time. Each time you
press the tolerance + key, while holding the power button, you will toggle between peak hold (shown by PH) on the
display and track mode. On the electronic dial type wrenches press the Mode key to enter track mode.
2. Testing manually (without a loader): Attach the wrench to the transducer horizontally (parallel to the ground) with drive
pointing away from you and installed in the transducer. Put the torque tester in track mode. Now, when you apply
torque to the handle of the wrench the readings on the wrench should correspond to the readings on the tester within
the specified accuracy (wrench accuracy plus tester accuracy). You need to apply the torque to the handle with
weights using a strap or cable to suspend the weights from the CENTER of the handle. Since you are using the
accuracy of the tester to test the wrenches you do not need to worry about using certified weights. The weights are
only used to apply a steady force on the handle during testing.
3. When going from clockwise to counterclockwise always load the wrench to full scale three times prior to the test. This
“shifts” the zero to the opposite direction as a result of hysteresis (hysteresis is natural phenomenon which occurs in
material).
4. Note the readings and determine the accuracy. If the wrench is out of tolerance re-calibrate per the procedure below.
Be sure to take into account the accuracy of your tester when determining the accuracy.
Calibration Procedure:
1. To enter calibration mode with a REVO/EX series do the following: With the wrench OFF and NO torque applied,
press the Tolerance plus (+) key and the Power/Clear key at the same time (this starts the wrench in calibration
mode). To enter calibration mode with the Electronic Dial series press the MODE button and then the power key. If
done properly the wrench will turn on showing: “ C000" for a moment. The wrench will then display “0”. Load the
wrench to full scale three time in the CLOCKWISE direction. Remove the wrench from the tester and press the UNITS
button to accept the zero torque calibration point.
NOTE: Each calibration level requires you to apply the correct torque and press the UNITS key (REVO/EX series) or
MODE key (Electronic Dial Series) to go on to the next calibration step. If you make a mistake you must start over at
step 1. When using weight to apply torque do not touch the weights until the wrench displays the next calibration
point, there will be a short hesitation after pressing the UNITS key (REVO/EX series) or Mode key (Electronic Dial
Series) to allow the weights to stabilize and for you to get your finger off of the keypad.
IMPORTANT: you must always calibrate in the clockwise direction FIRST, then the counter-clockwise direction. When
you press the UNITS key (REVO/EX series) or MODE key (Electronic Dial Series) to accept the torque input squeeze
(pinch) the button from the back of the wrench so you do not deflect the wrench by pressing down on the key.

CALIBRATION PROCEDURE
Jetco Torque Tools 16 www.itorque.com
2. The wrench will now show “C010”. Apply 10% of full scale to the wrench in the CW direction. If the wrench range
is 250 ft-lb apply exactly 25.00 ft-lb (10% of full scale) squeeze the UNITS key to accept the 10% torque value.
IMPORTANT! After loading the desired torque and pressing the units key the tester will approximately
3 seconds to take a reading to allow the torque to stabilize and for you to remove your finger from
the wrench, do not touch the wrench or go on to the next step until the wrench prompts you to do so.
Make sure the weights are not swinging when you press the UNITS key (if you are suing weights to
apply the force to the handle).
3. Repeat above procedure for 50% and 100% clockwise torque values.
4. After completing the CW direction the tester will display “C000” and the direction icon will point to the CCW. Load
the wrench to full scale three time in the COUNTER-CLOCKWISE direction. Remove the wrench from the tester and
press the UNITS key (REV/EX Series) or MODE key (Electronic Dial Series) to accept the CCW zero calibration point.
5. The wrench will now show “C010”. This means apply 10% of full scale to the wrench (this time in the counter-
clockwise direction). If the tester is a 250 ft-lb tester apply exactly -25 ft-lb (10% of full scale). With a stable 10%
load press the UNITS key. IMPORTANT! After loading the torque and pressing the units key the wrench
will wait approximately 3 seconds to take a reading to allow the torque to stabilize, do not touch the
tester, or go on to the next step until the tester prompts you to do so.
6. Repeat 50% and 100% in the counter-clockwise direction.
After pressing the final UNITS key (REVO/EX series) or MODE key (Electronic Dial Series), at 100% of full scale in the counter-
clockwise direction, the tester will start reading the torque in the track mode. The value should be correct. If calibration values
were not entered correctly such that values input were significantly different than the original values the
calibration will not be accepted and the factors will not change.
Retest the unit at all points.
Important Calibration Issues:
1. The calibration will only be as accurate as the accuracy of the torque applied at the calibration points.
2. When testing the wrench for accuracy, make sure you are in Track mode.
3. Make sure you load BOTH the tester and the wrench to full scale in the direction to be calibrated, then remove the
wrench from the tester and zero BOTH the tester and the wrench.
4. Always apply the torque to the center of the rubber grip of the JH series.
5. If, after calibration, the wrench “sticks” on the full-scale value of the wrench you have done something wrong
during calibration. The most common causes for this are: 1. You calibrated the wrench in the reverse order
(calibrated the CCW direction first), or, 2. You went through the calibration without loading the wrench, or, 3. You
missed a calibration point (pressed the units key when no load was applied.

ZERO/TARE FOR WRENCHES MANUFACTURED PRIOR TO 11/1/2016
If the wrench/tester serial number has a " * " symbol laser marked as part of the serial number it was
manufactured after 11/1/2016 and can be zeroed/tared as described in this manual. Wrenches without
the " * " symbol in the serial number are manufactured prior to 11/1/2016 and require that the wrench be
turned off first and then on to zero/tare the display (for example when going from the clockwise (CW) to
counter-clockwise (CCW) direction).
INFORMATION
JETCO TORQUE TOOLS RECOMMENDED CALIBRATION INTERVAL
JETCO recommends calibration at 6 months to 1 year intervals, however, actual intervals are user
dependent and can vary based on cycles, environment, tool use, criticality of the application and other
factors. It is the user's responsibility to determine the best calibration interval for their torque tools.
ACCURACY STATEMENTS
The following is a list of tool accuracies by series. JETCO accuracies are based on Indicated Value which
means that the tool is guaranteed to meet or exceed this accuracy level at the reading within the given
range.
Dial Wrenches: +/- 4% (both directions) from 20-100% of range.
Electronic Dial Wrenches (ED series): +/- 1% (both directions) from 10-100% of range.
SuperDuty/Revo Electronic Wrenches: +/- 2% (both directions) from 10-100% of range.
TED series Torque Testers: +/-1% (both directions) from 10-100% of range.
TTS-2000 Torque Meter when used with:
In-Line transducers: +/- .5% (both directions) from 10-100% of range.
Bench Mount Transducers: +/- .25% (both directions) from 10-100% of range.
Pre-set click wrenches: +/- 4% Clockwise and +/- 6% counterclockwise.
Micrometer click wrenches: +/- 4% Clockwise and +/- 6% counterclockwise.
Jetco Torque Tools 17 www.itorque.com