Page 1
DIGITAL TORQUE TESTER/WRENCH
DTW 200/200N
USER’S GUIDE
www.cooperinstruments.com
PH: 540-349-4746 • FAX: 540-347-4755
Page 2
CONTENTS
GENERAL OPERATION..............................................................................................................1
SELECTING MEASURING MODES ............................................................................................2
PROGRAMMING..........................................................................................................................2
STORING AND RECALLING DATA FROM MEMORY ...............................................................2
CLEARING DATA FROM MEMORY ...........................................................................................3
DOWNLOADING MEMORY DATA..............................................................................................3
AUTO POWER OFF.....................................................................................................................3
LOW BATTERY INDICATOR ......................................................................................................3
SYSTEM RESET ..........................................................................................................................3
RS-232 SERIAL OUTPUT............................................................................................................3
SIGNAL LEVEL: RS232C............................................................................................................3
OUTPUT DATA FORMAT............................................................................................................3
WARRANTY REPAIR POLICY....................................................................................................4
Limited Warranty On Products ..................................................................................................................4
Obtaining Service Under Warranty............................................................................................................4
Repair Warranty.........................................................................................................................................4
CF 136 iii DTW 200/200N (11/05)
Page 3
LIST OF EQUIPMENT
1. Torque Tester
2. CW one-way clutch
3. AC adapter/charger
4. Carrying case
Read First: Safety Information
For safety, and for damage avoidance, be sure to read this manual thoroughly. The warranty is only valid when the
product is used following the instructions provided within this manual.
• Do not use tester in high temperature, high humidity, or in damp or wet areas.
• Recommended operating temperature is between 0-42ºC (32-100ºF).
• Do not apply torque exceeding the rated capacity (180 lbf-in), regardless of whether the unit is On or Off. Avoid
shock load. Do not use with impact wrenches.
• When charging the battery, be sure to use the provided AC adapter/charger exclusively.
• Do not use lacquer thinner or any solvent to clean the unit.
• Do not disassemble or modify the unit.
• Recommended recalibration cycle is one (1) year.
1. ON/OFF Switch Press once to turn on, press again to turn off. After 10 minutes of non-use, unit will shut off
automatically.
2. CLR/PRG Switch To reset display to zero and to store data.
3. LCD Display Displays torque value as well as low battery icon (LOBAT).
4. AC charger/adapter receptacle If LOBAT icon appears, 8-hour battery recharge required.
5. System reset button When the battery has been depleted completely and a recharge has been executed, the
system may not yet operate. In this case, press the System Reset Button.
6. RS-232 output
7. Wrench head swivels 300º to allow the display to be positioned for the most convenient torque reading.
Consistent readings no matter where the wrench is gripped because the torque sensor is centered on the drive.
General Operation
1. Place the appropriate size socket onto the drive.
2. Rotate the wrench head so the display may be viewed while measuring and position the socket securely over
the bolt (not at an angle) and turn to measure.
3. After taking measurement, press CLR/PRG switch to zero display for the next test.
CF 136 1 DTW 200/200N (11/05)
Page 4
Selecting Measuring Modes
Press ON/OFF to turn on. Hold CLR/PRG for more than 4 seconds. The display will cycle PP (Peak mode), GO
(Real time mode) and PD (Peak Down mode). Select the desired measuring mode, which will become the default
mode. To display the measuring mode, press CLR/PRG.
PP (Peak Mode):
PD (Peak Down Mode):
GO (Real Time Mode):
Records the PEAK torque value. PEAK torque reading will not
change until a higher value is measured.
Records PEAK DOWN torque value and will not change even if a
higher value is subsequently measured.
This is real time measuring mode displaying TRANSIENT torque
values.
Programming
(To exit programming at any time press OFF)
Press ON/OFF to turn on. Press CLR/PRG and UP switches simultaneously and hold for more than 4 seconds.
The Green LED lights and one beep sounds, “HI” is displayed and then the High setpoint value. This confirms the
tester is ready for the following programming steps.
1. High Setpoint (HI) After “HI” is displayed and then the High setpoint value. Press UP or DOWN switch to
select the High setpoint value i.e. 50.0 for 50.0 lb-in (for lb-in gauge), then press CLR/PRG to enter.
2. Low Setpoint (LO) After High value is entered, “LO” is displayed and then the Low setpoint value. Press UP
or DOWN switch to select the Low setpoint value (i.e. 30.0 lb-in), then press CLR/PRG to enter.
3. Peak Down Minimum (PdLO) After Low value is entered, “PdLO” is displayed and then the PdLO value.
Press UP or DOWN switch to select desired PdLO setpoint value (i.e. 50.0 lb-in), then press CLR/PRG to enter.
PdLO sets a minimum torque value for Peak Down mode. For example if “PdLO” value is set at 50.0 lb-in, only
a reading over 50.0 lb-in will be measured in Peak Down mode.
4. Batch Counter (CO) After “PdLO” value is entered, “CO” is displayed and then the batch count number.
Press UP or DOWN switch to select desired batch count number (0-99), then press CLR/PRG to enter. Batch
counter retains the number of properly torqued fasteners counted in memory even if the tester is turned OFF.
Press and hold ON/OFF for more than 1 second to reset.
5. Beeper (bp) After the batch count number is entered, “bp” is displayed and the display shows “On” for beeper
set ON, “Off” for beeper set OFF or “FF” for no beep unless over high setpoint. Press UP or DOWN switch to
select, then press CLR/PRG to enter.
6. Auto Zero Reset (AC) After Beeper selection is entered, “AC” is displayed and then Auto Zero Reset duration
value. Press UP or DOWN to select desired AC duration 0.0C-0.5C-1.0C-1.5C-2.0C-2.5C-3.0C, and press
CLR/PRG to enter (o.5C for o.5 second and 0.0C for MANUAL RESET). After measuring, Auto Zero
automatically resets the tester to “0.0”.
7. Time (In) After Auto Zero Reset is entered “In” is displayed and then the Time duration. Press UP or DOWN
switch to select Time (0-24 seconds), then press CLR/PRG to enter.
After “In” is entered, “S-“ is displayed to confirm programming completion and 0.0 is shown.
After High and Low setpoints and batch counter are set, the tester counts the number of correctly torqued fasteners
(between High and Low setpoint). When completed, tester flashes the Green LED and beeps three times. If the
“Time” duration (“In” value) elapses before reaching the catch count number, the Red LED flashes and beep
sounds to alert to possible mis-tightening or stripped thread.
Storing and Recalling Data from Memory
1. Press ON/OFF to turn on.
2. Measure torque in PP or PD mode only and press CLR/PRG to store data in memory. This process may be
repeated up to 400 times. After 400, the oldest data is cleared as new data is stored (Download important data
before it is automatically deleted.)
CF 136 2 DTW 200/200N (11/05)
Page 5
3. To recall data, press UP or DOWN switch to select a memory location. The display cycles between memory
location and value. Format for memory location is .0.0.1 for first memory location. Format for value i.e.
50.0=50.0 lb-in (for lb-in gauge).
Clearing Data from Memory
Single clear: When a memory value is displayed, press “CLR/PRG” switch. That memory value is erased, “CLR”
blinks 3 times, and “0.0” is displayed.
All clear: While power is on, press CLR/PRG and DOWN switches simultaneously and release. When display
blinks “ALL”, press CLR/PRG. All memory is erased, “CLR” blinks 2 times, and “0.0” is displayed.
Downloading Memory Data
1. Press ON/OFF to turn on.
2. Press UP and DOWN switches simultaneously. The display blinks “FA” twice and then displays numbers with
decimal points in between (.0.0.1 for first memory location).
3. Press UP switch or DOWN switch to select the desired beginning memory location and press CLR/PRG to
enter. The display blinks “LA” for the ending memory location.
4. Press UP switch or DOWN switch to select the desired ending memory location and press CLR/PRG to enter.
5. Press CLR/PRG switch to download the data. While downloading the data, the display shows “-P-“.
Note: By pressing DOWN switch for more than 1 sec, the download function can be terminated.
Auto Power Off
To maximize the life of the battery, power automatically shuts off after 10 minutes of non-use.
Low Battery Indicator
“LOBAT” appears when tester needs to be recharged. Turn off power.
IMPORTANT! Use the Cooper/Cedar AC adapter/charger exclusively and plug into the correct AC output. It takes
8 hours to charge fully. Do not recharge for more than 12 hours. When fully charged, make sure the AC adapter/
charger is disconnected to avoid overcharging.
In order to avoid high heat, explosion or toxic fumes, please note the following precautions:
1. Be sure to use only the provided AC charger exclusively.
2. Do not plug the charger into unspecified higher voltage.
3. Do not recharge until LOBAT icon appears.
System Reset
When battery power is completely depleted, the tester may not work even though it has been recharged. In this
case, press the System Reset Button.
RS-232 Serial Output
Data output is available in the P-D mode and the P-P mode. Data will be transmitted when the ZERO switch is
pressed or activated by the AUTO ZERO function.
Signal Level: RS232C
Baud rate: 9600 Data bits:8 Stop bits: 2 Parity bit: None
Output Data Format
[CAN] _ _ _ [SO] [value] _ [SI] [unit] [CR]
[CAN]: ASCII control code 24
_: Space (code 32)
[SO]: ASCII control code 14
CF 136 3 DTW 200/200N (11/05)
Page 6
[value]: Output data with sign and decimal point. Plus sign represents CW torque and minus
sign for CCW. [value] always occupies six locations and empty locations will be filled
with spaces.
[SI]: ASCII control code 15
[unit]: N*m _ _ _=N·m
kgf*cm=kg·cm
lb*in=lb·in
[CR]: ASCII control code 13 (Carriage Return)
WARRANTY REPAIR POLICY
Limited Warranty On Products
Any Cooper Instruments product which, under normal operating conditions, proves defective in material or in
workmanship within one year of the date of shipment by Cooper will be repaired or replaced free of charge provided
that a return material authorization is obtained from Cooper and the defective product is sent, transportation
charges prepaid, with notice of the defect, and it is established that the product has been properly installed,
maintained, and operated within the limits of rated and normal usage. Replacement or repaired product will be
shipped F.O.B. from our plant. The terms of this warranty do not extend to any product or part thereof which, under
normal usage, has an inherently shorter useful life than one year. The replacement warranty detailed here is the
buyer’s exclusive remedy, and will satisfy all obligations of Cooper whether based on contract, negligence, or
otherwise. Cooper is not responsible for any incidental or consequential loss or damage which might result from a
failure of any and all other warranties, express or implied, including implied warranty of merchantability or fitness for
particular purpose. Any unauthorized disassembly or attempt to repair voids this warranty.
Obtaining Service Under Warranty
Advance authorization is required prior to the return to Cooper Instruments. Before returning the item, contact the
Repair Department c/o Cooper Instruments at (540) 349-4746 for a Return Material Authorization number.
Shipment to Cooper shall be at buyer’s expense and repaired or replacement items will be shipped F.O.B. from our
plant in Warrenton, Virginia. Non-verified problems or defects may be subject to a $100 evaluation charge. Please
return the original calibration data with the unit.
Repair Warranty
All repairs of Cooper products are warranted for a period of 90 days from date of shipment. This warranty applies
only to those items that were found defective and repaired; it does not apply to products in which no defect was
found and returned as is or merely recalibrated. It may be possible for out-of-warranty products to be returned to
the exact original specifications or dimensions.
* Technical description of the defect: In order to properly repair a product, it is absolutely necessary for Cooper to
receive information specifying the reason the product is being returned. Specific test data, written observations on
the failure and the specific corrective action you require are needed.
CF 136 4 DTW 200/200N (11/05)
Loading...