HKM Messtechnik HT6.0 User manual

Force gauge Sensor + Hand Terminal HT6.0 Operating Instructions
© All rights reserved by HKM-Messtechnik GmbH, 79110 Freiburg, Germany

Force gauge Sensor + Hand Terminal HT6.0 2
Table of contents
1. General notes and information.............................................................................................. 3
1.1. Description ........................................................................................................................................................3
1.2. Scope of delivery..............................................................................................................................................3
1.3. Intended use......................................................................................................................................................3
1.4. Safety instructions ...........................................................................................................................................3
2. Technical data .......................................................................................................................... 4
3. Operating elements and functions ....................................................................................... 5
4. Operation................................................................................................................................... 6
4.1. Switching on: ................................................................................................................................................6
4.2. Using the menu: MENU ...................................................................................................................................6
4.2.1. “About” menu option..................................................................................................................................7
4.2.2. “Configuration” menu option....................................................................................................................7
4.3. Measuring..........................................................................................................................................................8
4.3.1. Zero positioning and taring: .........................................................................................................9
4.3.2. Switching the measured value display: PEAK .......................................................................................9
4.3.3. Performing the measurement...................................................................................................................9
4.4. Changing the battery .....................................................................................................................................10
4.5. Turning off: ..................................................................................................................................................10
5. Calibration cycle.................................................................................................................... 10
6. Declaration of conformity..................................................................................................... 11
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Force gauge Sensor + Hand Terminal HT6.0 3 Notes
1. General notes and information
1.1. Description
The electronic force gauge is for measuring forces and weights. It consists of a transducer and the hand-held terminal connected
by a cable. This displays the measured values with seven digits, prefix and the specified unit. Factory calibration is performed
according to your specifications and the units N, kN,g, kg, t or lb. The transducer works bidirectionally, i.e. it measures in tensile
as well as compression direction. You can specify which direction of force is displayed with positive prefix and which is displayed
with negative prefix.
The force gauge can be tared and displays the current measured values or the top values in positive or negative load direction.
Some important data about your force gauge can be requested or changed via a user-friendly menu. Calibration of the force gauge,
which is also performed via the menu, is password-protected and may only be done by the factory.
1.2. Scope of delivery
The force gauge is supplied completely assembled including batteries.
It consists of a transducer and a hand-held terminal.
It is optionally supplied with a calibration certificate.
1.3. Intended use
The force gauge is for measuring tensile and compression loads. The transducer may only be loaded up to its nominal load. The
nominal load can be found on the type plate of the transducer. You can also find this information in the declaration of conformity on
page 11 or read it on the force gauge's display when switching it on. There must be no transverse forces affecting the transducer.
The hand-held terminal must not be subject to any forces.
This force gauge is only intended for exclusive use in areas that are not subject to calibration regulations.
The force gauge is a highly sensitive measuring instrument. It must be treated accordingly.
1.4. Safety instructions
There is risk to life and limb of the operator and other persons involved in case of
incorrect operation or misuse of the force gauge or non-observance of the safety
regulations. The measuring instrument or other material assets may be damaged.
All persons involved in commissioning, operation and maintenance of the force gauge
must
- be qualified respectively,
- read, understand and adhere to these operating instructions carefully,
- ensure that the safety regulations are also observed by other persons involved.
Getting under a suspended load or entering the direct risk area is prohibited!
Apart from that, the general accident prevention regulations, in particular the UVV 18
VBG 9a as well as the trade association regulations for safety and health at work BGV
A1 (previously UVV 1 VBG 1), are to be observed.
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Force gauge Sensor + Hand Terminal HT6.0 4 Technical data
2. Technical data
Nominal load see type plate on the transducer or in the declaration of conformity on ppage 11
Overload 1.2-fold nominal load
Measuring rate slow (10 Hz) / middle (20 Hz) / fast (100 Hz)
Display 12 digits, 2 lines
Resolution 16 Bit
Hand-held terminal's power supply 4 × battery type AA
Operating time > 8h continuous operation
Transducer's power supply 3.3 V
Transducer's bridge resistance 100 Ωto 1 kΩ
Auto off time 8, 30, 60 min / off
Operating temperature range 0 °C to +50 °C
Storage temperature range -20 °C to +70 °C
Protection class of the hand terminal IP 40
Material and dimensions
of the hand terminal ABS, 78 mm × 145 mm × 44 mm (b × l × h)
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Force gauge Sensor + Hand Terminal HT6.0 5
Operating elements
3. Operating elements and functions
The force gauge has two operating modes:
- the measuring mode:
in this mode, the measurements are performed. This is the standard mode of the force gauge, which is always enabled after
switching on.
- the menu mode:
here, the most important data about the force gauge can be read out and configured.
In this mode, the force gauge is calibrated in the factory.
Button Name in the
measuring mode
Function in the measuring mode
(grey font)
Name in
the menu
Function in the menu
(light blue font)
ZERO
POSITIONING /
TARING
- Zero positioning/taring
and
- Clear peak values
up - scroll up in the menu
- increase numerical values
PEAK Toggle between displays:
- of the current measured value
- of the maximum value (= largest
value in positive direction of force)
- of the minimum value (= largest
absolute value in negative
direction of force)
down - scroll down in the menu
- decrease numerical values
ON / OFF Switch device on/off escape - exit submenu option during entry
without saving
- exit menu, return to measuring mode
MENU Open the menu enter - open selected menu option
- confirm and save entry
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Force gauge Sensor + Hand Terminal HT6.0 6
Operation
4. Operation
4.1. Switching on:
By pressing the button, the force gauge is switched on.
The nominal load of the transducer is shown briefly on the display. Always make sure that this load is not exceeded.
The current measured value is shown in the display.
Please note that a previously tared value has been retained. The peak values were deleted.
4.2. Using the menu: MENU
The menu provides the following options:
- Read out information about the device -> “About” menu option
- Configure device settings -> “Configuration” menu option
- Calibrate the device -> “Service” menu option (this area is password-protected and can only be configured by the factory).
Enter
Enter
EnterEnter
Enter
Esc
Esc
Esc
Esc
Esc
Measuring
mode
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Force gauge Sensor + Hand Terminal HT6.0 7 Operation
The menu is used via the four buttons:
- It is opened with the MENU button.
- You can scroll through the menu options / submenu options with the buttons, or increase or decrease adjustable values.
- The enter button is for opening the selected menu option or to confirm the entry.
- The menu is closed with the escape button. The device is then in measuring mode.
4.2.1. “About” menu option
With this menu option, you can read out the following information about your device:
Firmware Version of the installed software
Data last cal. Date of the last calibration
Serial No. Serial number
Procedure:
- Press MENU to open the menu
- Open menu item “1. About” with enter
- Select the desired submenu option with and open it with enter
- The device-specific information can be read in the display
- Return to the submenu with enter
- Select another submenu option with
or
- Select the submenu option “1.4 Back” with and return to the main menu with enter
or
- Exit the menu with escape. The device returns to measuring mode.
4.2.2. “Configuration” menu option
With this menu option, you can configure the following settings:
Auto off Select the time after which the device automatically switches off to save batteries.
You can select one of the following: off, 60, 30, 8 min. (Factory setting: 60 min)
Averaging Here, you can select the desired measuring rate customised for your application, at the same time, the
frequency also changes with which the measured value display is updated in the display. The lower
measuring rate is suited to slower loads, the higher rate is suited to short, fast load changes. The higher
the measuring rate, the better the detection of peak loads. However, with the high measuring rate the
measured value display becomes slightly more disturbed, as the noise element increases.
You can select one of the following:
Setting Measuring rate Display frequency
slow 10 Hz 2 Hz
middle 20 Hz 5 Hz (Factory setting)
fast 100 Hz 10 Hz
Contrast Here you can set the contrast in the display, as you can best read it.
You can select between 10 - 100 % in 10%-steps
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Force gauge Sensor + Hand Terminal HT6.0 8 Operation
4.3. Measuring
Warning
There is risk to life and limb of the operator and other persons involved in case of
incorrect operation or misuse of the force gauge or non-observance of the safety
regulations. The force gauge or other material assets may be damaged.
To adapt the force gauge to existing lifting devices, only lifting gear (swivel heads,
eyebolts etc.) may be used that correspond to the nominal load* of the transducer
at least. The operator is responsible for selection and control. Product liability and
warranty of the manufacturer exclusively refers to the standard equipment of the force
gauge and the fixtures supplied ex factory.
The force gauge must not adapted under load.
Before using the force gauge, the operator needs to check all load suspension devices
(swivel heads, eyebolts etc.) for secure fit and damages (fissures, cracks, deflections
etc.). Damaged devices must no longer be used.
When measuring, the lifting of a load, e.g. with a lifting device, must be slow and steady.
Fast or unsteady load suspension results in dynamic load peaks which can lead to
overload, damages up to breaking of the load suspension devices or measuring device.
In general, the applied load, consisting of static + dynamic + tared load, must not exceed
the nominal load* of the transducer!
Getting under a suspended load or entering the direct risk area is prohibited!
* Information about the nominal load of the transducer can be found on its type plate or
in the declaration of conformity on page 11, or you can read the nominal load in the
display when switching on the force gauge.
Procedure:
- Press MENU to open the menu
- Select the “2. Configuration” menu option with and open it with enter
- Select the desired submenu option with and open it with enter
- Select the required value with and confirm it with enter
- Select another submenu option with
or
- Select the submenu option “2.4 Back” with and return to the main menu with enter
or
- Exit the menu with escape. The device returns to measuring mode.
Note
If while entering the values you exit the menu with escape without having confirmed the
values with enter, the entered value is not saved.
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Force gauge Sensor + Hand Terminal HT6.0 9 Operation
Procedure:
- Select suitable adapters to install the transducer.
- Make sure that the applied force is always vertical to the measuring axis of the transducer, for tensile as well as compression
forces. The measuring result is falsified as soon as the force axis is not vertically oriented.
4.3.1. Zero positioning and taring:
By pressing the button the force gauge is set to zero before a measurement and without a pre-load. Only perform zero
positioning once the transducer and the hand-held terminal were moved to the correct starting position for measuring. This way
the self-weight of the transducer and the respective adapter are set to zero.
With this function, it is also possible to tare pre-loads. These pre-loads are to be positioned properly before measuring and tared
by pressing the button.
By pressing the button, apart from the display the saved peak values are also set to zero.
4.3.2. Switching the measured value display: PEAK
When switching on the force gauge and exiting the menu, the current measured value is always shown in the display.
You can also select display of the peak values with the PEAK button. In this setting, the measured value display corresponds to a
drag indicator which is further advanced in case of increasing/decreasing values.
- If you press the PEAK button once the maximum value is displayed in positive load direction. “Peak Max” is displayed below the
measured value.
- Press the PEAK button once more to display the minimum value, i.e. the largest absolute value in negative direction of force.
“Peak Min” is displayed below the measured value.
- If you press PEAK for a third time the current measured value is displayed again.
By pressing the escape button you can return to the display of the current measured value from each peak value display.
The peak values are always recorded during measurement with the set measuring rate, independently of the selected measured
value display. They are saved until the force gauge is reset by zero positioning/taring.
4.3.3. Performing the measurement
- Load the transducer and read the measured value in the display.
- If required, change the measured value display with the PEAK button during measuring (see 4.3.2).
Note
If no button is pressed, the force gauge switches off automatically after the set auto-off
time. However, the saved peak values, the taring and the individual menu settings are
kept.
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Force gauge Sensor + Hand Terminal HT6.0 10
Calibration cycle
4.4. Changing the battery
The charging state of the battery is monitored by the force gauge. If the battery is starting to get depleted (battery charge < 4V),
“Batt” flashes in the bottom line of the display. In this case, for safe operation of the force gauge, the battery needs to be replaced.
To replace the battery, the hand-held terminal must be switched off. Please keep four new batteries type AA at hand.
- Remove the blue protective cover from the housing of the hand-held terminal. The battery compartment is at the rear of the
device.
- With slight pressure on the ribbed surface, slide the lid of the battery compartment downwards beyond the housing.
- Remove the used-up batteries and insert the new ones. Observe the batteries' polarity in doing so.
- Slide the lid along the lateral guide back onto the battery compartment and let the nose click into place in the housing by applying
slight pressure.
- Thread the housing first on the cable side and then on the opposite side back into the protective cover.
4.5. Turning off:
By holding the button down, the force gauge is switched off.
The peak values are deleted. If the system was tared, this tare value is kept even if the force gauge is switched on or off. The
individual settings you entered in the menu are kept.
5. Calibration cycle
The functional efficiency and accuracy of the measuring device and any existing test weights must be checked at regular intervals
according to the quality assurance regulations.
For this force gauge, those responsible need to determine a suitable interval in which it is regularly presented to HKM-Messtechnik
GmbH for testing. The type and scope of this test also need to be stated by those responsible.
We recommend test intervals of a year or two years. The force measuring device is checked for its functional efficiency and
recalibrated.
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