CEM Instruments DT-156H Coating Thickness Gauge Instruction Manual

: June 13, 2024
: CEM Instruments

CEM Instruments DT-156H Coating Thickness Gauge

CEM Instruments DT-156H Coating Thickness Gauge

General information

The coating thickness gauges work either on the magnetic induction principle or on the eddy current principle, depending on the type of probe used. You can select the type of probe via MENU system, or it will work automatically.

Features

Measured Coatings: Non-magnetic coatings (e.g. paint, zinc)on steel; Insulating coatings(e.g. paint, anodizing coatings)on no-ferrous metals
Operating with MENU easily
Memory for 1500 readings
Delete single readings and all group readings easily
Error indication
Data transferred to PC via USB for analysis
Disable Auto-Power-off function via MENU setting

Application

This compact and handy gauge is designed for non-destructive, fast and precise coating thickness measurements. The principal applications lie in the field of corrosion protection. It is ideal for manufacturers and their customers, for offices and specialist advisers, for paint shops and electroplaters, for the chemical, automobile, shipbuilding and aircraft industries and for light and heavy engineering.

The gauge gauge is suitable for laboratory, workshop and outdoor use.

The probe can work on both principles, magnetic induction and on the eddy current principle. One probe only is required for coating measurement both on ferrous and non-ferrous metal substrates. It is adaptable to specific tasks: i.e. they can be used on special geometries or on materials with special properties.

Description of the Gauge

For measurement on steel substrates, the gauge works on the magnetic induction principle, for measurement on non-ferrous metal substrates, it works on the eddy current principle.
Measured values and user information are shown on LCD. The display with backlight ensures easy reading of screen data in dark conditions.

Supply Schedule

Gauge with two AAA 1.5V batteries, plastics carrying case, operating instructions
(English), steel and aluminum substrate, and standard flake for calibration.

Probe

The Probe systems are spring-mounted in the probe sleeve. This ensures safe and stable positioning of the probe and constant contact pressure.
AV-groove in the sleeve of the probes facilitates reliable readings on small cylindrical parts. The hemispherical tip of the probe is made of hard and durable material. Hold the probe by the spring mounted sleeve and put on measuring object.

Specifications

Sensor probe	F	N
Working principle	Magnetic induction	Eddy current principle
Measuring range	0-1350µm	0-1350µm
0-53.1mils	0-53.1mils
Guaranteed tolerance (of reading)	0-1000um ± (2.5%+2um)	0-1000um ±(2.5%+2um)
1000-1350um(±3.5%	1000-1350um(±3.5%)
0-39.3mils (±2%±0.08 mils)	0-39.3mils (±2%±0.0Bmils)
39.3-53.1mils(±3.5)	39.3-53.1mils( ±3.5)
Precision	0- 100um(0.1um)	0-100um(0.1um)
1OOum-1000um(1um’	1OOum-1000um(1um)
1000um-1350um (0.01mm)	1000um-1350um (0.01mm)
0-1 Omils(0.01 mils)	0-1 Omils(0.01 mils)
10-53.1mils(0.1mils)	10-53.1mils(0.1mils)
Minimum curvature radius	1.5mm	3mm
Diameter of Minimum area	7mm	5mm
Minimum measurable thickness	0.5mm	0.3mm
Overload display	—
Working temperature	O”C-40°C(32°F-104°F)
Working relative humidity	20%-90%

Front View

LCD display
Select key: For ON/OFF, select and ok
Up key: For upward selection and working mode switch
Clear Key: Calibration Zone of the FE and NF
Back Key: For return or delete the last measured dat
Down key: For downward selection or working mode switch
Battery cover

Front View

LCD Display

Working mode
Measured data quantity in the working mode
Auto measure mode
Ferrous or No-ferrous metals being measured.
It will change automatically in the Auto measure mode
Battery indication Measure data
Unit
Delete data, press Back button to delete the current data

Ready to start

Power Supply

For power on, please press and hold button. If no LCD display: please check if the battery is correctly installed or it is in low battery.
Display: Please replace battery immediately. Note that the gauge will make faulty measurements if the voltage is very low.
Note: When power on, please away from any metal at least 10 cm above Before each measurement, zero calibration is recommended.

Replacing the Battery

Power off the meter.
Open the battery cover.
Remove battery.
Insert new battery.
Close the battery cover.

Caution: Make sure the anode and cathode are correctly positioned.

Press to power on; the gauge will work in measuring mode. Press Select button into MENU mode. See following MENU system arrangement:

Function and operation instruction Select Working mode

Working mode: There are 31 working modes in this gauge. Measure data would not be stored in the gauge in GroupO measure mode.
In the other 30 working modes, 30 measured data can be stored in each mode in cycle.

A: Press Select button to enter the menu
B: Press Up/down button to select working mode
C: Press Select button to enter workinn mode
D: Press up/down button to select working mode
E: Press Select button for OK.

Select measure mode (Probe)

The probe can work in three modes:
AUTO: The probe can automatically select the working mode. When placed on steel (magnetic substrates), it will work in magnetic induction principle. When placed on no-ferrous metals, it will work in eddy current principle.
Fe: The probe works in magnetic induction principle.
No-Fe: The probe works in eddy current principle.
A: Press Select button to enter the menu
B: Press Up/down button to select working mode
C: Press Select button to enter workinn mode
D: Press up/down button to select working mode
E: Press Select button for OK.

Settings

Unit selling

Select unit
A: Press Select button to enter the menu
B: Press up/down button to select the setting
C: Press Select button to enter the setting
D: Press up/down button to select Unit
E: Press Select button to enter
F: Press up/down button to select
G: Press Select button for ok

Backlight setting

Adjust the brightness of the backlight.
A: Press Select button to enter the menu
B: Press up/down button to select the setting
C: Press Select button to enter the setting
D: Press up/down button to select backlight
E: Press Select button to enter
F: Press up/down button to adjust the I rightness of the backlight
G: Press Back button to return.

Auto power off

You can disable Auto-power-off via MENU system or the gauge will power off automatically in about 3 minutes if no measurement or operation.

A: Press Select button to enter the menu
B: Press up/down button to select the setting
C: Press Select button to enter the setting
D: Press up/down button to select Auto-power-off
E: Press Select button to enter
F: Press up/down button to select
G : Press Select button for ok

Adjust gray scale (contrast)

The grayscale adjustment: dot matrix LCD display may not be good in different
temperature & humidity, than you can adjust gray scale to get good LCD display.
A: Press Select button to enter the menu
B: Press up/down button to select the setting
C: Press Select button to enter the setting
D: Press up/down button to select gray scale
E: Press Select button to enter
F: Press up/down button to adjust gray scale
G : Press Select button for ok

System information

System version number

A: Press Select button to enter the menu
B: Press up/down button to select the setting
C: Press Select button to enter the setting
D: Press up/down button to select information
E: Press Select button to enter
F: View the system information, then press Back button to return

Data View
View the stored measured data in each mode.
All-delete: Delete all measured data in group.
A: Press Select button to enter the menu
B: Press up/down button to select view
C: Press Select button to enter view
D: Press up/down button to select working mode
E: Press Select button to enter
F: Press up/down button to view each data
G: Press Back button to return or press Select button to delete this group data.

Calibration and Measurement

The gauge can calibrate Zero-point of Fe or Non-Fe, or delete wrong calibrated zero-point of Fe or Non-Fe.
It suggested that zero-point be calibrated before use.

Zero-point calibration of Fe or Non-Fe

you can press and hold the ZERO button to Zero-point Zero-point calibration of Fe or Non-Fe
in measuring mode
In the Fe mode, Zero-point calibration of Fe.
In the Non-Fe mode, Zero-point calibration of Non-Fe (Less than 50UM is effective).

Delete Fe or Non-Fe Zero-point

A: Press Select button to enter the menu
B: Press up/down button to select calibration
C: Press Select button to enter calibration
D: Press up/down button to delete zero-point of Fe or Non-Fe
E: Press Select button for Ok
F: Press Back button to return

Delete Functions

A: Delete current data: in measurement interface, you can delete the last data by pressing Back button.
B: Delete all data: Enter menu-view; you can delete all data and statistics of the Current
C: Delete Group data: Enter menu-view-1Jroup data; you can delete this group data by pressing Select button