Triplett CTT47 User manual

User Manual
CTT47
Coating Thickness Tester

Introduction
Thank you for selecting the Triplett CTT47 Coating Thickness Tester.
The CTT47 is a portable meter designed for non‐invasive coating
thickness measurements with automatic recognition of the substrate
material under test.
The meter uses two measurement methods: magnetic induction (for
ferrous metal substrates) and eddy current (for non‐ferrous metal
substrates).
The CTT47 meter can connect to a PC via USB and transmit recorded
data for further analysis and for generating report documentation.
Proper use and care of this meter will provide many years of reliable
service.
Features
Measured Coatings: Non‐magnetic coatings (e.g. paint,
zinc) on steel; Insulated Coatings (e.g. paint, anodized
coatings) on non‐ferrous metals
Intuitive menu‐based programming
Memory storage of up to 1500 readings in 30 groups (50
readings per group)
Delete single readings or all groups easily
Auto Power OFF with disable feature
Data transfer to PC via USB
User Zero Calibration ability
Applications
Corrosion protection
Paint Shops and Electroplaters
Chemical, Automobile, Shipbuilding, and Aircraft
industries Laboratory, Workshop, and Field use

Probe Description
The CTT47 probe is spring mounted in the sensor sleeve. This ensures
safe and stable positioning of the probe and ensures constant contact
pressure.
A V‐groove in the sleeve of the probe facilitates reliable readings on
small cylindrical parts. The hemispherical tip of the probe is made of
hard and durable material.
Measuring metallic coatings
This meter can measure non‐magnetic metal coatings (Zinc) on a
magnetic (ferrous) substance base, and non‐metal coatings on a
metal base (ferrous or non‐ferrous).
Description
Meter Description
1. LCD display
2. Power and Select button
3. Up arrow
4. Zero Button
5. Micro USB Connector
6. Back Button
7. Down Arrow
8. Sensor
Note: Battery compartment on rear of meter

Display Description
1. Data record memory group
number
2. Record Number in current
memory group
3. Battery status icon
4. Measurement units: µm or
mils
5. DEL (Delete): Press the back ( ) button to delete the
previous reading
6. Metal type (FE=ferrous, NFE=non‐ferrous)
7. Automatic (Auto) metal detect mode
Operation
Meter Power
Install two ‘AAA’ 1.5 V batteries into the rear battery compartment.
Press the power button to switch the meter ON. The display will
switch ON. If the display does not switch ON, install or replace the
batteries. When powering up, please keep the meter at least 10cm
(4”) from metal objects. Replace the batteries when the battery
status icon appears low, the meter will give inaccurate readings if the
battery voltage falls very low.

Measurements
Before each measurement session please perform a Zero Calibration
as described later in this User Guide.
Practice with the film and zero reference metal substrates to learn how
the meter operates before moving to a professional application. The
heavier metal substrate is the ferrous (magnetic) zero substrate (Fe)
and the lighter metal substrate (Al) is the non‐ferrous (non‐magnetic)
zero substrate. In Auto mode, the meter automatically senses ferrous
and non‐ferrous substrates.
1. Place a reference film (250µm, for example) on the ferrous
substrate (FE).
2. Power the meter on by pressing the power button.
3. Place the spring‐loaded meter sensor against the reference film.
4. The meter will emit an audible tone indicating that the
measurement has been taken.
5. The LCD will show the reading at the center of the display area.
6. For a typical display see the Display description diagram.
Automatic Power OFF
In order to conserve battery life, the meter will automatically turn off
after approximately 3 minutes. To defeat this feature, use the
programming menu detailed in the next section (menu parameter
AUTO POWER OFF under SET).