DeFelsko PosiTector 6000 User manual

PosiTector 6000

INSTRUCTION MANUAL v. 7.1

Coating Thickness Gages

Table of Contents

Introduction ....................................................... 3

Operation Overview .......................................... 4

Why is Measurement Important? ...................... 5

Probes ............................................................... 6

Menu Operation ................................................ 7

Calibration, Verification & Adjustment .......... 8

Cal Settings Menu ........................................ 9

Setup Menu .................................................. 13

Statistics ....................................................... 16

Memory Management ................................... 17

Connecting to a Computer ............................ 20

Available Options ............................................... 24

Temperature ....................................................... 27

Power Supply / Battery Indicator......................... 27

Returning For Service......................................... 28

Troubleshooting .................................................. 29

Introduction

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 measure the

thickness of non-conductive coatings on non-ferrous metals.

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

probes.

PosiTector 6000 Kit Contents

- PosiTector 6000 Probe (pg. 6)

- Protective rubber holster with belt clip

- Protective Cap for Probe (some probes only)(pg. 3)

- Protective Lens Shield (pg. 3)

- Wrist Strap (pg. 3)

- 3 Alkaline AAA batteries (pg. 27)

- Quick Guide Instructions

- Nylon carrying case with shoulder strap

- USB Cable (pg. 20)

- Certificate of Calibration traceable to NIST (pg. 5)

- Two (2) year warranty on Body and Probe

The PosiTector 6000 hand-held, electronic instrument non-

destructively measures the thickness of coatings on metals,

quickly and accurately. It consists of a body (Standard or

Advanced) and probe (Built-in or Separate).

Plastic Lens Shield

The LCD is covered with a thin plastic film for protection against

fingerprints and other marks during shipment. This film, while

usually removed before using the instrument, can be left in place

to protect against paint overspray. Replacements can be

purchased.

Wrist Strap

We recommend attaching and wearing the

supplied wrist strap.

Protective Cap

Some PosiTector 6000 models are shipped with a protective plastic cap

over the probe. remove this cap prior to use. Replace it when the instrument

is not in use to protect the probe.

1. Remove protective plastic cap (if supplied) from probe.

2. Power-up Gage by pressing the center navigation button.

3. Place the probe FLAT on the surface to be measured. HOLD STEADY.

When a valid measurement is calculated, the Gage BEEPS twice 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.

Operation Overview

The PosiTector 6000 powers-up when the center navigation button is

pressed. To preserve battery life, the Gage powers-down after approximate-

ly 5 minutes of no activity. All settings are retained.

If memory is ON while continuous measurements are being taken, only the

last value on the display (when the probe is lifted) is stored into memory.

Scan (pg.14) stores ALL measurements into memory.

Substrate

Current

Measurement

Battery Indicator

Unit of

Measurement

Microns

Typical Screen

Cal 1 Current Calibration

Setting

(Advanced Only)

Button Functions- Normal Operation

Adjust Down

Access the Menu

Adjust Up

Restore brightness

after dimming

(Advanced only)

Golden Rule

Measure your uncoated part first! This quick zero-check determines if a

calibration adjustment is needed for your substrate. (see pg. 9)

Next, lay the included plastic shims onto a bare surface and measure them

individually to ensure the Gage measures a known thickness within

tolerance.

Factory Calibration

in Use

Certification

All probes include a Certificate of Calibration. For organizations with re-

certification requirements, instruments 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.Written

calibration procedures are available from DeFelsko Corporation at no

charge.

Why is Measurement Important?

Dry film thickness (DFT) is arguably the single most important measurement

made during the application and inspection of protective coatings. Coatings

are designed to perform their intended function when applied within a tight

DFT range as specified by the manufacturer. Correct thickness ensures

optimum product performance. Even the most basic specification will require

DFT to be measured.

Many physical and appearance properties of the finished coating are directly

affected by the film thickness including the color, gloss, surface profile,

adhesion, flexibility, impact resistance, and hardness of the coating. The fit

of pieces assembled after coating can be affected when film thickness isn’t

within tolerance.

Regular film thickness measurement helps control material costs, manage

application efficiency, maintain finish quality and ensure compliance with

contract specifications. Paint manufacturers recommend target ranges to

achieve optimum performance characteristics and clients expect these

parameters to be met.

Precisely measuring finish thickness has other benefits, too. Whether to

meet International Organization for Standardization (ISO), quality, or

customer requirements for process control, companies need to verify

coating quality to avoid wasting money reworking product.

The PosiTector 6000 consists of a body and a probe.

A wide selection of interchangeable probes are

available. Each retain their own unique calibration

information. All Gage bodies accept all probes.See info

(pg. 14) to find your body and probe type.

More probe information is available at

www.defelsko.com/p6000. To disconnect, a probe from a body,

power-down the instrument and pull the plastic probe connector

horizontally (in the direction of the arrow) away from the body.

Reverse these steps to attach a new probe.

When powered-up the PosiTector automatically determines what type of

probe is attached and does a self-check. Coating thickness probes “sense”

when they are near metal and immediately attempt a measurement followed by another

every 2 seconds. They stop when removed from the vicinity of metal and power-down

after 5 minutes of no activity.

This continuous measurement feature is intended to allow careful probe placement on

small or odd-shaped surfaces. Ignore all readings taken before the probe is properly

placed.

Standard probes

These constant-pressure, stainless steel probes are hermetically

sealed to be totally waterproof - ideal for underwater use. Hold

them at the 2 knurled rings and push the outer spring-loaded sleeve

down.

FN Combination Probe

An FN probe combines the capabilities of both "F" and "N" probes.

Switching between the two is automatic. First, the probe attempts a

measurement using the magnetic principle. If the coating is non-

magnetic over steel, a reading is displayed with a letter "F". If not,

the probe automatically attempts a measurement using the eddy

current principle. If the coating is non-conductive over metal, a

reading is displayed with the letter "N" (see also N Lock pg. 11).

Do this...

Not this!

Probes

Memory

Statistics

Cal Settings

Setup

Connect

Help

Power Off

Exit

Sync Now

USB Drive

Auto Sync

Bluetooth

Updates

Exit

Menu Operation

Instrument functions are menu controlled. To access the Menu,

power-up the instrument, then press the center navigation

button .

Below is a sample menu for a PosiTector 6000 Advanced Model:

Some buttons have a tick box to their

right to indicate current status. An empty

box indicates that feature is not active.

Current selection is displayed

with darkened background

Down

Center

To navigate, use the Up and Down buttons to

scroll and to SELECT.

Select Exit to exit from any menu.

Navigation Button

Screen Capture

Press both (-)(+) buttons at any time to capture and save an

image copy of the current display. The last 10 screen captures

are stored in memory and can be accessed when connected to a

computer (see USB Drive pg. 22).

Calibration, Verification & Adjustment

The PosiTector 6000 non-destructively measures the thickness

of coatings on metals. Three steps ensure best accuracy...

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.

The standards used in the calibration are such that the combined

uncertainties of the resultant measurement are less than the

stated accuracy of the Gage. Typically a 4:1 ratio between the

accuracy of the standard and the accuracy of the Gage is

sufficient.

The PosiTector 6000 is shipped with a Certificate of Calibration

showing traceability to a national standard. For organizations with

re-certification requirements, the PosiTector 6000 may be

returned at regular intervals for calibration. DeFelsko

recommends that our 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.

Written Calibration Procedures are available online at no charge.

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.

A reference standard is a sample of a known thickness(es) against

which a user may verify the accuracy of the Gage. Reference

standards may be coated thickness standards, the included

plastic shims, or sample parts whose coating thickness has been

determined using other means.

1-point Calibration Adjustment

Also known as an offset or correction value, there are 4 ways to

perform this adjustment:

(i) 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 average of a series of readings on the uncoated surface

is within tolerance of "0" .

(ii) Average Zero Calibration Adjustment

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

to (i) is to take several readings on the uncoated part and average

the result.

(a) Select from the Cal Settings menu.

(b) 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.

seconds after placing the probe on the surface to allow the user

to correctly position the probe on the surface. After the last

measurement the Gage will calculate a Zero which represents

the average of all the Zero readings taken.

Zero

Cal Settings Menu

Cal Settings

(iii) 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.

(iv) Average Adjustment to a Known Thickness

On rough or curved surfaces a preferred method to (iii) is to take

several readings on the known thickness and average the result.

(a) Select from the Cal Settings menu.

(b) 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.

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 .

1 Pt Adjust

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