ELECTROMATIC PosiTector 6000 Manuale utente

PosiTector 6000

INSTRUCTION MANUAL v. 6.0/M

for Memory (3) models

Coating Thickness Gages

Separate

probe

Built-in

probe

ELECTROMATIC

E Q U I P M E N T C O., I N C.

600 Oakland Ave., Cedarhurst, NY 11516–U.S.A.

TEL: 516-295-4300 •FAX: 516-295-4399

Introduction

Power-up / Power-down

The PosiTector 6000 powers-up when any button is

pressed. To preserve battery life, the Gage powers-

down after approximately 3 minutes of no activity. All

settings are retained.

Principles of Operation

Fprobes use the magnetic principle to measure

the thickness of non-magnetic coatings on ferrous

metals.

Nprobes use the eddy current principle to meas-

ure the thickness of non-conductive coatings on

non-ferrous metals.

FN probes combine the full abilities of both the "F"

and "N" probes.

Certification

All probes or gages are shipped with a Certificate of

Calibration. For organizations with re-certification

requirements, gages may be returned at regular

intervals for calibration. DeFelsko recommends that

customers establish gage calibration intervals based

upon their own experience and work environment.

Based on our product knowledge, data and

customer feedback, a one year calibration interval

from either the date of calibration, date of purchase,

or date of receipt is a typical starting point.

The PosiTector 6000 hand-held, electronic Gage

non-destructively measures the thickness of coat-

ings on metals, quickly and accurately.

Quick S

Quick St

tart

art

1.Separate probe models - remove black protective

rubber cap from probe if supplied. Built-in probe

models - remove Gage from protective rubber

holster.

2.Turn Gage on with any button.

3.Place the probe FLAT on the surface to be

measured. HOLD STEADY. When a valid

measurement is calculated, the Gage BEEPS

twice, the bi-color LED blinks green, and the

measurement is displayed.

4.Lift probe AT LEAST 2 INCHES (5cm) from the

surface between measurements - OR - leave probe

on the surface in the same location for continuous

measurements every 2 seconds. Do not drag the

probe sideways across the surface.

Golden Rule

Measure your uncoated part first! This quick zero-

check determines if a calibration adjustment is need-

ed for your substrate. (See pg.5)

Next, lay the included plastic shims onto a bare sur-

face and measure them individually to ensure the

Gage measures a known thickness within tolerance.

Menu Operation

Current selection is

displayed with darkened

background

Some buttons have a tick box

to their right to indicate current

status. An empty box indicates

that feature is not active.

Gage functions are menu controlled. To access the

Menu, turn the Gage on, then press the button.

To navigate, press (-) to scroll DOWN, (+) to scroll

UP and to SELECT. Press both (-)(+) buttons at

any time to exit any menu or select Exit from the

Menu.

When there are more menu options than can fit

onto one screen, a scroll bar will appear. The

dark area indicates what portion of the total

menu you are currently viewing.

List boxes have a down arrow on the right-hand side.

Use the (-) and (+) buttons until your desired choice

appears, then press to select this choice and

move focus onto the next item.

“Focus” is currently at this

unselected (empty) square box

“Radio” buttons.

Only one can be

selected at a time.

“List“ box

a “tick” indicates this square

box has been selected

Calibration,

Calibration, V

Verification

erification

and

and Adjustment

Adjustment

Three steps ensure best accuracy…

1. Calibration - typically done by the manufacturer

or a qualified lab

2. Verification of Accuracy - as done by the user

3. Adjustment - to a known thickness

Calibration

Calibration is the controlled and documented

process of measuring traceable calibration

standards and verifying that the results are within the

stated accuracy of the Gage. Calibrations are

typically performed by the Gage manufacturer or by

a certified calibration laboratory in a controlled

environment using a documented process.

Verification

Verification is an accuracy check performed by the

user using known reference standards. A successful

verification requires the Gage to read within the

combined accuracy of the Gage and the reference

standards.

Adjustment

Adjustment, or Calibration Adjustment is the act of

aligning the Gage's thickness readings to match that

of a known sample in order to improve the

effectiveness of the Gage on a specific surface or in

a specific portion of its measurement range. 1-point

or 2-point calibration adjustments are possible and

these are stored in calibration settings (pg. 9).

the symbol disappears whenever a

calibration adjustment is made to the gage.

The PosiTector 6000 is factory calibrated and

performs an automatic self-check each time it takes

a measurement. For many applications no further

NOTE:

adjustment is necessary after a Reset (pg.15). Just

check ZERO on the uncoated substrate, then

measure.

But sometimes Gage readings can be influenced by

changes in substrate shape, composition, surface

roughness or by measuring in a different location on

the part. That is why Calibration Adjustments are

made possible.

1- or 2-point Calibration Adjustments may be

performed if readings are not falling within the

expected range of thickness for the application being

measured.

Where a calibration adjustment method has not

been specified, use a 1-point method first. If meas-

uring the included shims reveals inaccuracies, use

the 2-point method. Factory Calibration settings

can be restored at any time by performing a Reset

(pg.15), creating a NEW calibration setting (pg. 9), or

by DELETING the adjustments made to the Cal 1

calibration setting (pg.10). The symbol appears

on the display whenever factory calibration settings

are in use.

With “FN” Gages, calibration adjustments are

made only to the “F” or “N” mode (stored independently

under a particular Cal), whichever was measured last.

Once adjusted, you may “lock” the current cal-

ibration adjustment to prevent further modification. (See

“Cal Lock” on pg. 9)

1-point Calibration Adjustment

Also known as an offset or correction value, there

are 4 ways to perform this adjustment:

(1) Simple Zero Calibration Adjustment

Measure your uncoated part. If the Gage does not read

"0" within the tolerance of the probe being used, lift the

probe from the surface and adjust the display down (-)

or up (+) until it reads "0". Measure and adjust until the

NOTE:

average of a series of readings on the uncoated surface

is "0" .

(2) Average Zero Calibration Adjustment

To establish “0” on a rough or curved surface a

preferred method is to take several readings on the

uncoated part and average the result.

1.Select the Zero menu option.

2.Press (+) to select the number of readings to be

used to obtain an average, typically 3 to 10

readings. The greater the variation between

readings, the more readings should be taken to

obtain an average.

3.Repeatedly measure the uncoated part. The Gage

will wait 2 seconds between readings to allow the

user to correctly position the probe on the surface.

After the last measurement the Gage will calculate

and display "0" which represents the average of all

the Zero readings taken.

(3) Simple Adjustment to a Known Thickness

It is sometimes desirable to adjust the Gage to a

known thickness, such as a shim, rather than

adjusting it to zero.

Measure the object. If the expected reading is not

obtained (within tolerance), lift the probe from the

surface and adjust the displayed reading down (-) or

up (+) to the expected thickness. Hold the button

down to increase the rate of adjustment.

(4) Average Adjustment to a Known Thickness

On rough or curved surfaces a preferred method is

to take several readings on the known thickness and

average the result.

1.Select 1 Pt Adjust from the Cal Settings menu.

2.Press (+) to select the number of readings to be

used to obtain an average, typically 3 to 10

readings. The greater the variation between

readings, the more readings should be taken to

obtain an average.

3.Repeatedly measure the known thickness

reference. The Gage will wait 2 seconds between

readings to allow the user to correctly position the

probe on the surface. After the last measurement

the Gage will calculate and display the reading

which represents the average of all the

measurements taken. If the expected reading is

not obtained (within tolerance) lift the probe from

the surface and adjust the reading down (-) or up

(+) to the expected thickness and press .

2-point Calibration Adjustment

-Preferred for very unusual substrate materials,

shapes or conditions. Provides greater accuracy

within a limited, defined range.

This method requires taking two readings at known

thickness values: a thin value (often zero) and a

thicker value. These values should be on either side

of the thickness range to be measured.

1.Select 2 Pt Adjust from the Cal Settings menu.

2.Press (+) to select the number of readings to be

used to obtain an average on the thinner item,

typically 3 to 10 readings. The greater the variation

between readings, the more readings should be

taken to obtain an average.

3.Repeatedly measure the thinner item. The Gage

will wait for 2 seconds on the surface to allow the

user to correctly position the probe on the surface.

After the last measurement the Gage will calculate

and display a thickness value which represents the

average of all the readings taken using the factory

calibration settings.

4.Lift the probe from the surface and adjust the

displayed reading down (-) or up (+) to the known

thickness value of the thin item. Press to accept

this value.

5.Repeat steps 2 - 4 for the thicker item.

When selected, the icon will appear and the

current calibration settings are “locked” to prevent

further user adjustments.

User Mode Calibration

There are applications where 1- or 2-point

calibrations will not work satisfactorily such as when

measuring magnetic coatings, or conductive

coatings over non-metals. For these applications the

included PosiSoft software can download special Cal

settings.

Calibration Memory

It is often convenient to retain a particular

calibration adjustment before making another. Then,

if you return to that part, the corresponding

calibration setting can be restored.

A “setting” is any calibration adjustment. The

PosiTector 6000 always displays the currentcalibra-

tionsetting(ex. Cal 3) in the upper right corner of the

display.

The setting called Cal 1 has unique features. It can be

adjusted but never deleted, and is always made

active with factory settings after a Reset (see pg.15).

-creates a new calibration setting using the next

available number (Maximum of 10). By default, these

new Cal settings are initially created with the Gage’s

factory settings. This is indicated with the icon

-removes a setting completely from the list. That Cal

number can be reused later with the New command.

A setting cannot be deleted if readings have been

stored into a batch using that calibration setting.

Delete all readings in that batch first (see Memory

Management pg. 11). Although Cal 1 cannot be

deleted, the Delete function will return it to factory

settings.

-sends a list of all Calibration Settings to either the IR

printer using the Gage’s built-in IR port, or to a PC’s

default printer using the included USB cable.

-loads an existing setting. Use the (-)(+) buttons to

scroll the List box until the desired setting appears,

then press . A warning message will prevent the

opening of a stored Cal setting if a batch is open and

has readings. Create a new batch first or open a

batch containing no readings. (see pg.12)

which appears at the bottom of the display. A

warning message will prevent the creation of a new

Cal Memory if a batch is open and has readings.

Delete the batch first. (see pg.12)

Indice

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