SPRL Micronext, a public limited company set up in 1982, specializes in the design and manufacture of measuring and control equipment. It has an in-house design office and a production unit for prototypes and small series production. This flexible structure has allowed a network of partners to be developed, enabling the company to adapt in very short time periods, with a quality standard guaranteed to match its clients’ requests.
SPRL Micronext is involved in the automotive sector, with its windscreen wiper control apparatus (load gauge and angle measurement device) and In the process automation field, Micronext carries out design studies and produces tailor-made equipment providing solutions to its customers’ specific problems.

Description

- Micro-controller and strain gauge system.
- Automatic temperature compensation.
- Measure the load up to 20 N.
- Three units displayed: kgf , N, oz.
- precision: 1% full scale.
- LCD 16 characters.
- Automatic zero search on starting up
- Memorization of the displayed value
- 9 V PP3 battery feeding.
- Measurement by impulses.
- Display refresh: one time per second.
- Languages: French, English, Spanish, German, Italian.
- Dimensions: 80 x 120x 31 mm

________________________________________________________________________________

Load measurement

Put down the device on the windshield in such a way that the extremity of the wiper arm arrives in front of the measure system.
Push and release the ON / OFF button without applied effort.
Wait for the ZERO SEARCH:OK indication.
Apply the extremity of the wiper arm on the measurement system; the display indicates the value and the load unit.
When the measure is steady, push on MEMORY button to maintain the display to this value. Clear this value by pushing once again.
The device cuts itself automatically after three minutes of inactivity.

Changing the battery

Unscrew and remove the closing plate.
Disconnect battery connector.
Take the battery out, change it.
Engage the battery ( minus pole to the center ). Set the battery connector.
Take the battery in, replace the closing plate and screw back again.

Load calibration

To start the procedure, hold MEMORY down. Push and release ON/OFF. Wait until OK appears. Release MEMORY.

If the difference between measured value and real value is not important you may use a short calibration procedure. At starting up apply a known charge and verify the indication given by the device. Correct with the gain adjust potentiometer to obtain the exact value and turn the device off. Repeat operation to check.

Complete calibration:
- for a charge of 0 of the displayed value is approximately 35.
- for a charge of 1 kgf the displayed value must be: the given value for 0 kgf plus 450, for example 35 + 450 = 485. Adjust the gain potentiometer to perform the condition: displayed value at 0 kgf + 450 = displayed value at 1 kgf.
- Redo with 0 kgf and 1 kgf to check the condition. If not, adjust once again.

To quit push on ON/OFF. To go to UNIT CHOICE push on MEMORY

Unit choice

This procedure follows load calibration.
To go from an unit to the next push on MEMORY. To choose the unit hold MEMORY down until OK appears. To quit push on ON/OFF. To go to language choice push on MEMORY.

Language choice

This procedure follows UNIT CHOICE.

To go from an language to the next push on MEMORY. To choose the language hold MEMORY down until OK appears. To quit push on ON/OFF.

Twisting angle measurement device for 04096-A / 06091-A / 07010-A

COMMON CHARACTERISTICS THREE MODELS

- Measures angle between wiper arm and windshield.
- Stand alone device.
- No need to zero search : direct display of value at power on.
- Angle values between -15° and +15°.
- Display by step of 0.05°.
- Maximum error 0.3°.
- Supply : two button batteries 3V 560 mA-h type 2450.
- Duration of use without changing batteries: 370 hours
- Weight 200 to 300 grams depending on model.

The three models are different by the measurement taking. The 04096-A model is a measuring and displaying device without measurement taking. The 06090-A model has a measurement taking with a clip. The 07010-A has a measurement taking with a spring holder.

Angle measurement

Push on ON/OFF button and release. The actual value is displayed by steps of 0.05° with sign. To stop push on ON/OFF. The device turns off after 5 minutes of inactivity.

To change batteries

Unscrew the screws of the rear plate without removing they completely.
Free the rear plate and revolve it.
Change the batteries (+ pole inside of the device).
Replace the rear plate and rescrew.

calibration, sign change

To start calibration, device in state off, push on button ON/OFF continuously. After approximatively ten seconds the indications F1, F2, F3, F4, F5 will follow each other.
F1 is the routine that enables to fix the zero value.
F2 enables to change the sign.
F3 displays the binary value of the angle.
F4 reserved to the metrology service, accessible after introduction of the access code.
F5 no function ; end of calibration.
To choose a routine release the ON/OFF button when the indications F1 to F5 follow each other.


F1 : when the button ON/OFF is released the display is flashing. Set the device in position 0°. Push on ON/OFF until 0.00 steady appears. Release the button, routine is ended.

F2 : when the button ON/OFF is released the message SES and the sign appear. On each brief pressure the sign changes. A long pressure records the sign and gives the message on .When the button is released the device goes off.

F3 : when the button ON/OFF is released the binary value of the angle is displayed. A brief pressure and the device goes off.

F4 : when the button ON/OFF is released the device displays 000. The 0 on the right is flashing. Brief pressures enable to change the right digit value : 1,2,3,… A long pressure records this digit and shifts it to center. Repeat operation for second and third digit of acces code. A long pressure after the third digit enables to go to the calibration routine for values of +15°, +7.5°, 0°, -7.5°, -15°. If access code is false device goes off. If access code is correct the device displays on. A brief pressure starts the routine. Set the device in a position corresponding to one of angles of calibration : +15°, +7.5°…..The device gives the angle value flashing. A long pressure will fit this value to the calibration value. Example : The device set in position +15°, the read value 14.60° (flashing) will change to +15.00° (steady). All intermediate values will be calculated with calibration values. A long pressure turns off the device.

F5 : this function is reserved for future developpements

Angle gage

The angle gauge enables to quickly verify if the indications given by the device are in the range of admitted precision. The calibration piece is mounted on the reference ring with a low pressure and the shaft applied to the differents planes of the gauge. The gauge angles are –15°, -7.5°, 0°, +7.5°, +15°. The device must indicate the angle value at +/- admitted error. The gauge can be used to calibrate the device with a precision of +/- 0.1°

Angle measurement device 04096-A



Measurement and displaying part intended to be combined with a measure taking device ( a clip or any other device produced by the customer ). This body is the base for 06091-A and 07010-A models. The front face has four holes M3 set in square at distance of 20 mm and four holes 3mm H7 set in cross at distance of 20mm.

Protractor with clip

Formed of the block measurement+display on which we take up a clip which can receive most of the various types of arm ends. The device 06091-A is supplied with standard adapters which accept most of the arm ends.
The photo opposite shows the clip with the standard adapters; the left adapter is maintained against the reference ring; The right adapter is put in the position corresponding at the arm end by means of a knurl. The tightening effort on the extremity of arm is applied through a spring blade what allows the fast change of arm by sliding simply the extremity between both adapters.

Arm with hooked end




Measure is taken with standard adapters. The clip accepts arm ends until 11 mm width.

Non hooked arm end




The plastic part covering the arm is separated from the steel arm. On each side the adapters which are mounted in clip. The blocking of the arm is made by the knurl.

Top connexion adapter


Adapters intended for this type of arm end are similar to standard adapters but executed in steel with a restricted thickness.

Adapters without dismantling


These adapters allows to make a measure without having to dismantle the extremity of this type of arm. The shape of adapters takes into account the light roundness of the sides of the arm end.

Adapter for aeroblade ( bayonet )

The adapter is a block which is put between both standard adapters. The bayonet is slid in the hole in the top. The module accepts left and right arm end. Note that this type of arm end can also be mounted with the model 07010 - A.

Gauge for angle control

The angle gauge enables to quickly verify if the indications given by the device are in the range of admitted precision. The calibration piece is mounted on the reference ring with a low pressure and the shaft applied to the different planes of the gauge. The gauge angles are –15°, -7.5°, 0°, +7.5°, +15°. The device must indicate the angle value at +/- admitted error. The gauge can be used to calibrate the device with a precision of +/- 0.1°