User manual
187
TESTING
Tel: 08708 50 90 50 Fax: 08708 50 90 60 Partners in Precision
Coating Thickness Gauge TT-270 Series
Features
• Several types of probes are available for various applications: F400, F1, F1/90, F10, N1, CN02
• Measurement modes: continuous / single
• Automatic calculation: Mean values / Max. values / Min. values / No. of test, S.Dev.
• Memory for maximum 640 readings
• Working modes: direct mode (DIRECT) and Batch mode (APPL)
• With backlight display
• Integrated printer
• Battery low indication
• Switch off modes: manual and auto
TECHNICAL SPECIFICATION
Measuring range Refer to table below
Probes available F400, F1, F1/90, F10, N1, CN02
Tolerance Refer to table below
Minimum resolution Refer to table below
Measuring conditions Refer to table below
Operation language English
Standards DIN, ISO, ASTM, BS
Min. measuring area Ø5mm (standard probe N1),
Ø7mm (standard probe F1)
Calibration Zero and foil calibration
Statistics Maximum and minimum, mean, standard deviation of
3000 readings, number of measurements
Data memory 640 readings
Limits Min-max with alarm
Interface RS-232
Operating temperature -5ºC-40ºC
Humidity 20%~90%
Power supply NiMH rechargeable batteries, 1.25V
Dimensions 230mm x 86mm x 47mm
Weight 530g
PROBE MODEL
F400 F1 F1/90º F10 N1 CN02
Operating principle Magnetic induction Magnetic induction Magnetic induction Magnetic induction Eddy current Eddy current
Measuring range (µm) 0-400 0-1250 0-10000 0-1250 0-40
10-200 (for chrome
plate on copper)
Low range resolution (µm) 0.1 0.1 0.1 10 0.1 1
Accuracy One-point calibration (µm) ±(3%H+1) ±(3%H+1) ±(3%H+1) ±(3%H+10) ±(3%H+1.5) ±(3%H+1)
Accuracy Two-point calibration (µm) ±[(1~3)H%+0.7] ±[(1~3)H%+1] ±[(1~3)H%+1] ±[(1~3)%H+10] ±[(1~3)%H+1.5] -
Measuring conditions Convex 1 1.5 Flatten 10 3 Flatten
Min curvature of the min area (mm)
Min diameter of the area (mm) Ø 3 Ø 7 Ø 7 Ø 40 Ø 5 Ø 7
Critical thickness of substrate (mm) 0.2 0.5 0.5 2 0.3 unlimited
Standard Delivery
• Controller unit & integrated printer
• Probe F1 or N1
• Charger
• Substrate & calibration foil set
• Printer paper
• Manual
• Quality certificate
Optional Accessories
• Various probes for different applications
COATING THICKNESS GAUGE - TT-270 SERIES
Code No Description
W-TT270F Coating thickness gauge with integrated printer and F1 probe
W-TT270N Coating thickness gauge with integrated printer and N1 probe
W-TT270FN Coating thickness gauge with integrated printer and FN probe
The measuring methods of the TT-270 are magnetic induction (F) and eddy current (N). When a F series probe is connected, the unit measures
non-magnetic coating on ferro substrates, when a N series probe is connected, the unit measures non-conductive coating on non-ferro
substrates.
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