Sper scientific 840060 Manuel utilisateur
Digital Force Gauge
with RS232 Output
840060
Instruction Manual
2
CONTENTS
FEATURES.......................................................................... 3
FRONT PANEL DESCRIPTIONS........................................ 4
MEASUREMENT PROCEDURES ...................................... 5
Preparations for Measurements ....................................... 5
Average Reading Measurements ..................................... 6
Peak Load Measurements................................................ 7
MOUNTING HOLES & OPTIONAL TEST STAND .............. 7
APPLICATIONS................................................................... 8
Electronics ........................................................................ 8
Business Equipment ......................................................... 8
Chemical & Plastics .......................................................... 8
Machinery & Manufacturing .............................................. 9
Automotive........................................................................ 9
Other Industries ................................................................ 9
BATTERY REPLACEMENT ............................................ 10
SPECIFICATIONS ........................................................... 10
WARRANTY ..................................................................... 12
3
FEATURES
• 5000 gram wide capacity, high resolution, high accuracy,
and high repeatability
• 3 display units: grams, Newton, or ounces
• Tension and compression capabilities
• Peak hold (max. load) can be displayed while measuring
tension or compression
• The “Zero” button works during normal measuring and
“peak hold” operations
• Full capacity zero (tare) control
• Fast/Slow response time button
• Positive or reverse display selection
• Full line of adapters are included
• Hand held or stand-mounted gauges are available
• Low power consumption for extended battery life
• Low battery indicator
• Microprocessor circuit and exclusive load cell transducer
• Overload protection
4
FRONT PANEL DESCRIPTION
1 Universal Sensing Head
2 LCD Display
3 Fast Indicator
4 FAST/SLOW Button
5 LCD Reverse
Display Button
6 Zero Button
7 g/oz/Newton Unit Switch
8 Power O/On/Peak Hold
0 = O, 1 = On
9 Mounting Holes/
Fixing Screws
10 Battery Cover/
Compartment
11 Flat-Head Adapter
12 Cone Adapter
13 Chisel Adapter
14 Hook Adapter
15 120 mm Extension Rod
5
MEASURMENT PROCEDURES
Measuring Consideration
The Tension & Compression measuring function is
executed automatically.
When making the compression measurement, the display
will show the ‘”-” mark automatically.
When making the measurement, the SENSING HEAD along
with the adapter has to be on a line with the measuring object.
(ref. Fig. 2)
Do not rotate the SENSING HEAD. Some certain angles
between the SENSING HEAD and the measuring object are
not allowed (ref. Fig. 3).
6
Normal Measurement
• Slide the “PowerO/On/Peak Hold Switch” (3-8, Fig. 1) to the
“On” position.
• Determine display unit of g, oz or Newton by selecting “g/oz/
newton Unit Switch” (3-7, Fig. 1).
• Connect “Sensing Head” (3-1, Fig. 1) with proper
“Adapter” (3-11 to 3-14, Fig. 1) and the “Measuring Object”
should be in a straight line. Don’t give any force in standby
mode.
• “Zero Adjust” by pushing “Zero Button” (3-6, Fig 1) before
every measurement.
• Start measurement by using force (push or pull), the LCD
will display the Average reading value.
Note...
To change the display direction during measurement, push the
“Reverse” button one time (3-5, Fig. 1)
* There are two time sampling displays, FAST and SLOW
Push the “FAST/SLOW Button” once (3-4, Fig. 1), if the
upper left corner of LCD displays ({(oJJ). “(Fast Indicator,
3-3, Fig. 1), then the display reading is under the
operation of fast sampling time.
* If the upper left corner of LCD does not show the “Fast
Indicator” (3-3, Fig. 1), the display reading is under the slow
sampling time.
* Over range display of tension function, LCD will show , ----,,
* Over range display of compression function, LCD will show
,,_ - - - _,,
7
Peak Hold Measurement
The meter can measure the peak value of force both of
tension & compression operation. The operation procedures
of Peak Hold Measurement are the same as above “Normal
Measurement” but slide the “Power O/On/Peak Hold Switch”
(3-8, Fig. 1) to the “PEAK H” position.
Sliding the “Power O/On/Peak Hold Switch” (3-8, Fig. 1) to
the “On” position will cancel the peak hold function.
MOUNTING HOLES
Because the FORCE GAUGE is a precise instrument, best
results are obtained when the gauge is tted to a test stand.
Mounting holes are provided on the back of the gauge for
easy stand mounting.
8
APPLICATIONS
Electronics
•Test strength of solder points and spot welds on circuit boards.
• Pull test external leads bonded to ceramic substances.
• Test wire wraps on clip connections.
• Test pull strength of modied wire wrap connection on posts.
• Test spring clip insertion and withdrawal forces.
• Pull test welds in micro-electronic devices.
• Measure torque, timing belt tension, sliding friction, etc., on
computer peripheral equipment.
• Test P.C. board insertion force.
• Test insertion and withdrawal forces of various circuit
components such as transistors and integrated circuits.
• Test actuating force of snap action switches.
Business Equipment
• Measure force required to perforate cards.
• Measure load on slitter knives.
• Measure actuating requirements of typewriters.
• Test clutch release force.
• Measure torque, timing belt tension (by deection), sliding
friction, etc., on computer peripheral equipment.
• Test adhesion strength of labels and stickers.
• Test load on paper thickness gages.
• Measure tension of pencils.
• Test actuating requirements on push buttons and ip switches.
Chemical & Plastics
• Test lm bond strengths.
• Tensile test rubber, bers and laments.
• Measure rmness of polyurethane foam.
9
• Test crush strength of pills (medicine).
• Test peel strength of adhesives.
• Measure compression of ceramic compounds.
• Test vacuum take-down pressure on process machines.
Machinery & Manufacturing
• Test load on wire reel.
• Test force to open cabinet doors.
• Test sprocket chin tension.
• Test pull-out force of drive shaft.
• Rate testing of springs in systems.
• Calibrate a cantilever beam-type Apparatus to obtain a
force/deection relationship.
Automotive
• Measure force of seat belt retractors.
• Measure arm pressure of windshield wipers.
• Measure ip force in mechanical snap action switches.
• Test eort to operate hand tool.
• Test forces required to move linkages and tension cables.
• Measure force of odometer pull.
• Test peel strength of vinyl insert bonded to body side moldings.
• Evaluate physical eorts (door, look, hood, glove
compartment, brake pedal, etc.)
Other Industries
• Measure pedal depression force in aircraft.
• Test hardness of gypsum wallboard.
• Test keyboard and pedal contact force of organs and pianos.
• Test force to remove caps of aerosol cans.
• Measure trigger pulling forces on rearms, hand tools etc.
• Test rmness of sausages in casings.
10
• Test integrity of seals on blister packages and plastic bags.
• Test pressure of surgical instruments (forceps, scissors)
• Test fruit removal force and fruit rmness.
• Measure force on spindles of photographic equipment.
Battery Replacement
• When it is necessary to replace the battery (battery voltage
less than approx. 6.8 V), “Lo” will appear on the display.
• Remove battery cover (3-10, Fig. 1) to expose batteries.
• Install the batteries correctly into the case. Permanent
damage to the circuit may result from incorrect installation.
SPECIFICATIONS
Display LCD (Liquid crystal display) 5 digits, 10 mm (0.4”)
digit size
Display
Direction
Positive or reverse direction, select by the push
button on the front panel
Function Tension & Compression (Push & Pull) Normal
force, Peak hold (Max. load)
Peak hold Will freeze the display value of the peak load
(Max., load)
Zero Zero button can be operated both for “normal
force” or “peak hold” operation
Measure
Capacity
5000 g/176.40 oz/49.03 Newton
Resolution 1 g/0.05 oz/0.01 Newton
Min. display 3 g/0.10 oz/0.03 Newton
Accuracy ± (0.4% + 1 d), within 23 ± 5°C and
under the test weight on 3000 g & 5000 g
Unit select g/oz/Newton
Update time Fast - Approx. 0.2 second
Slow - Approx. 0.6 second
Over range
indicator
Display shows “- - - - “ when over range
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