Kolver K1, K5, K20 Operator's Handbook Manual

K1 - K5 - K20

TORQUE TESTER

OPERATOR’S HANDBOOK

KOLVER S.r.l - Via Corner, 19/21 - 36016 THIENE - ITALY - tel. [phone] fax. [phone]
[e-mail] - www.kolver.it

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1.FEATURES OVERVIEW

Controlling torque is quintessential for companies to ensure that product's quality, safety and
reliability isn't compromised. Insufficiently torqued fasteners can vibrate loose overtime and when
excessively torqued the threaded fasteners can strip. Using a quality torque tester has become
increasingly important for many companies to secure that proper torque is being applied.

 The K1.K5.K20 Torque Tester is built for accuracy and reliability ever demanded for these

kinds of products. This tester accurately measures torque for most tools, meeting the
demands to test multiple torque ranges for various tools used in production. The analyser
features a built-in transducer and supports most external size transducers. Utilizing a high­performance circuitry system, the tester can store and download torque readings to a
computer at high speeds. This allows a powerful collection of analytical data to be stored for
future reference and statistical analysis of tools. Offering three modes of operation (Track,
Peak + and Peak -) this versatile analyser provides the operator a variety of ways to
smoothly verify torque applied with a selection of four measuring units. Models ranging in
torque up to 20 Nm with the built-in transducer and up to 999 Nm with the external
transducer.

 Recommended for all hand screwdrivers, wrenches, or power tools.
 Measuring range with built in transducer:

K1 0.05-1 Nm, K5 0.3-5 Nm, K20 0.5-20 Nm

 Accuracy K1 = ± 1 cNm

K5 = ± 2 cNm
K20 = ± 3 cNm

 Selection from the menu of three operation modes: (Track, Peak +, Peak -) and four units of

torque measurements: (N.m, cN.m, lbf.in, kgf.cm).

 Port for external transducers.
 <, =, > signals to indicate validity of torque readings with buzzer for audible user feedback.
 RS-232 interface to download values stored in memory (500 values capacity).
 Manual and auto reset functions to clear displayed values.
 Calibration will allow for both a fast calibration (using mV/V transducers rated output) and

a true (dead weight) calibration.

2. DESCRIPTION AND USER INTERFACE

1. Mounting holes

2. Display with 8 lines/ 16 digits

3. CHARGE: External power supply 5,5 – 2,5mm and battery charger port

4. SERIAL: RS232 output

5. EXT CELL: External transducer input and GO signal output

6. MENU keys to move through the menu. Key ^ to enter the menu.

7. Key “ON/ESC” :

 Press for 3 seconds to switch the tester on or off.
 Press to return to the previous screen

8. Keys: VALUE + and - to increase or decrease values when setting numbers

9. Key OK : press once

 To enter a sub-menu
 To save settings
 To reset torque values displayed when in MANUAL clear mode

10. Internal transducer: 13mm hex male to accept the joint simulator

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3. MOUNTING

It is strongly recommend securing the tester through slots “1” to a workbench before operating.
Immobilizing the tester when checking torque values over 3 Nm is critical for the safety the
operator as well as for the accuracy of torque measurements during operation.

4. JOINT SIMULATOR (run down adapter)

The Joint Simulator (JS) consists of a screw compressing a series of washers (see §11). The way the
washers are mounted can simulate soft or hard joint. The screw comes with a ¼” hex male head for
proper fit to any ¼” hex female screwdriver drive. Hardened thread components increase accuracy
and life. One semi-elastic JS included. Hard joint simulator available on request.

NB. It is suggested to grease the JS each 1000 cycles.

5. STARTING AND OPERATING THE TESTER

 Connect the battery charger/power supply unit.
 Push the “ON/ESC” key. The display will show the main screen.

1. Model

2. “+” tightening, “-“ untightening.

3. Mode of operation: PA (peak +), PS
(peak -), Track

4. Number of measures since last reset

5. Torque value measured

6. Measuring unit

7. Transducer in use : INT or EXT

8. Time of tightening cycle

9. = GO, > < NO GO used to
monitor lower and upper torque limit
and receive a visual and audible
warning

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 Push the ^ key to enter the menu and adjust the various settings to your requirements.

 Insert the joint simulator into its 13mm hex. seat and make sure the screw is in its upper

position (if not run the driver anticlockwise to unscrew it). The tester is ready.

 Run the joint simulator screw all the way down until it stops and read the torque value on

the display. Run the screw up to be ready for the next cycle.

 Press the “ON/ESC” key for 3 seconds to switch the tester off. The Tester features a built-in

auto shut off mode function to save power when not in use. If there is no activity for 5
minutes, such as key press or no torque input, the tester will shut down. To restore power
press the “ON/ESC” key for 3 seconds.

 In case of a deadlock, press the Reset button and restart the tester.

6. PROGRAM MENU

The flow chart below shows the complete menu options.

Push ^ key to enter the menu from the main screen. To move through the menus push ^ or v keys.
The indicator < on the right side of the screen will signal the selected option. Push “OK” key to
confirm the desired option.
Use + or - key to active digits when setting numbers and push OK to save them.
Protected parameters (such as calibration) need a password from Kolver or Kolver authorized
distributor.

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MENU OPTIONS

 MODEL

This screen gives you information on the unit you are using, like serial number, software
version etc. Such data are password protected.

 LANGUAGE

You can choose between English and Italian.

 SETUP

The following is a quick reference for the Set-Up menu structure. If lost within the menu, you
can turn the analyser OFF and ON at any time.

MODE:

The Torque Tester offers three different mode of displaying torque information during operation.
The user will determine which mode is best suited for the application.
Key sequence to change mode:

 Mode
 ^ o v.
 OK

PEAK +
The display retains the highest torque applied clockwise.
Use this mode during calibration or testing of any power tools as well as hand type torque wrench
(dial, beam, and screwdriver).

PEAK ­The display retains the highest torque applied anticlockwise.
Use this mode when checking the torque needed to unscrew a tightened fastener.

TRACK
This mode constantly tracks increasing or decreasing torque variations. Use this mode to monitor
varying torque on motors and machinery. Also for calibrating and testing Dial type wrenches on a
loading bench.

MEASURING UNIT: Nm, Ncm, Kg.cm and lb.in
Key sequence to change unit:

 unit
 ^ o v.

 OK.

AUTORESET: When off push OK to remove readings from the display and reset all values to zero.

When on this process occurs automatically with any new measure.

GO - NO GO: The Torque Tester is equipped with visual (>, <, =) and audible (buzzer) signals to

provide the user instant torque status during operation. These signals operate in conjunction with
the tolerance (high limit, low limit) settings. Example: let us assume we want to calibrate our
screwdriver in the range between 0.8 and 1.0 Nm. We will then set the Low limit to 0.8 and the
High limit to 1.0. If our measure will fall inside the pre set limits the display will show =, if the
measure is below 0.8 Nm we will see <, if over 1.0 Nm we will see >. A buzzer will also signal the
measure was out of the required range. Push OK to stop the buzzer.

Note: When the values are within the pre set range an electric GO signal will be sent to pin 8 (pin 4
of 4N35) and 9 (pin 5 of 4N35) of connector EXT CELL, as per following diagram: