Product Description

PLEASE NOTE: THESE PRODUCTS HAVE BEEN DISCONTINUED – Please contact us if you would like a recommendation of a unit to replace any of these models.

elcometer-208-and-208dl-ultrasonic-thickness-gauges-200

The Elcometer 208 and 208DL Ultrasonic Thickness Gauges are rugged & repeatable hand held gauges designed to non-destructively measure the thickness of metal substrates whilst ignoring the thickness of up to 2mm  of an applied coating (Echo to Echo mode).T92016967    5MHz High Damped Transducer – Steel Applications
T92016968    7.5MHz High Damped Transducer – Aluminium, Stainless Steel & Titanium ApplicationsSupplied with or without data logging, each gauge can be used with the wide range of measurement transducers and is supplied with a wide range of functionality including Scan mode and Alarm mode.Elcometer 208DL only – ElcoMaster™2.0

Select from transducer options under Accessories

Definitions:

Echo-to-Echo Mode:
Measuring materials as thin as 0.15mm the Echo-to-Echo mode ignores the thickness of any coating applied to the surface under inspection.

Scan Mode:
Measuring up to 16 readings per second, the gauge captures the minimum recorded thickness.

Alarm Mode:
Once a minimum acceptable thickness has been set, a red LED illuminates and a buzzer sounds if a measurement falls below the preset value.

The Elcometer 208 and 208DL Ultrasonic Thickness Gauges can be used in accordance with:

  • ASTM E 797
  • EN 15317

 

Specifications

Elcometer 208 and 208DL Ultrasonic Thickness Gauges – Specifications

Part Number C208—-1 C208DL—-1
Model Elcometer 208 Elcometer208DL
Echo-to-Echo Mode
Scan Mode
Alarm Mode
Data Output (Immediate)
Data Logging (Memory) 1000 readings
ElcoMaster™ Software
Maximum Measurement Range 0.63 – 500mm , 2.54 – 25.4mm  in Echo-to-Echo Mode
Velocity Range 1250 – 10000m/s
Accuracy ±0.1mm
Resolution 0.01mm
Units Millimetres and Inches
Operating Temperature -20°C to 50°C
Keypad Type Sealed Membrane
Display 114mm (4½”) Digit Liquid Crystal Display with backlight
Battery Type 2 x LR6 (AA) 1.5V Alkaline or 1.2V NiCad cell
Weight 295g
Dimensions 63.5 x 120.6 x 31.75mm
Certificate available Certificate of Calibration: issued for Fixed Calibration equipment and shows readings and traceability.
Accredited Certificate: can be issued for Fixed Calibration Equipment and a full UKAS traceable certificate is issued from an independent Calibration Laboratory


Elcometer 208 and 208DL Ultrasonic Thickness Gauges Packing List:

  • Elcometer 208 or 208DL gauge
  • Bottle of couplant
  • battery x2
  • carry case
  • operating instructions Elcometer 208DL only: CD with ElcoMaster™ software and data transfer cable

Data Sheet

Elcometer 208 and 208DL Ultrasonic Thickness Gauges – Data Sheet

Elcometer 208 and 208DL Ultrasonic Thickness Gauges Data Sheet

Standards

Elcometer 208 and 208DL Ultrasonic Thickness Gauges – Standards

The Elcometer 208 and 208DL Ultrasonic Thickness Gauges can be used in accordance with:

  • ASTM E 797
  • EN 15317

Accessories

Elcometer 208 and 208DL Ultrasonic Thickness Gauges – Accessories

Part Number Description
T92015701 Ultrasonic Couplant, 120ml Bottle
T92015874 High Temperature Ultrasonic Couplant, 60ml Bottle
T9205243- Test Wedge: 2 – 25mm  in 6 Steps
T9205270- Test Wedge: 30 – 100mm in 8 Steps

 

Measurement Range Material Probe Type Part
in steel (mm) Cast Iron Plastic Glass Fibre Thin Glass Fibre Steels Glass Thin Plastic Aluminium Potted Straight Probe Right Angle Probe Microdot High Temp. (650 deg C) Extra Resolution Exxon Specification Number  (Bold & Highlighted are Ex Stock UK) Frequency (Mhz) Colour Code Crystal Diameter (mm) Wearface Diameter (mm)
3.8-50.8 T92015620 1 brown 12.7 15.88
T92015621 or
T92015622 yellow
T92015623
1.5-101.6 T92015626 2.25 red 6.35 9.53
T92015627
T92015628
T92015629
T92015631
T92015632
1.5-127.0 T92015633 2.25 red 12.7 15.88
T92015634
T92015635
T92015636
T92015637
T92015638
1.5-50.8 T92015641 5 green 4.76 6.35
T92015642
T92015644
1.02-152.4 T92015645 5 green 6.35 9.53
T92015646
T92015647
T92015648
T92015655
T92015656
1.27-507.7 T92015657 2.25 green 12.7 15.88
T92015658
T92015659
T92015660
T92015661
T92015662
1.02-152.4 T92015663 7.5 grey 6.35 9.53
T92015664 or
T92015665 silver
T92015666
0.635-152.4 T92015667 7.5 blue 6.35 9.53
T92015668
T92015669
T92015670
1.02-152.4 T92015671 10 white 6.35 9.53
T92015672
T92015673
T92015674
1.52-254.0 T92015676 10 white 12.7 15.88
T92015677
T92015678
T92015679

 

Sound Velocities

Sound Velocities / Speed of Sound in Materials for Ultrasonic Thickness Gauges

The Ultrasonic Thickness Gauges can be programmed by the user to the appropriate Material in two ways :

  • Using known standards of the same material – set the calibration to the thickness
  • Using the Frequency calibration, set the frequency to the appropriate Material using the Velocity / Speed of Sound Chart below.
Metals
m/s m/s
A Aluminium 6 320 – 6 400 M Molybdenum 6 250 – 6 300
Aluminium (2024-T4) 6 380 Mercury 1 450
Asbestos Cement 2 200 N Nickel 5 480 – 6 040
B Beryllium 12 880 P Platinum 3 690
Boron Carbide 10 920 S Silver 3 600 – 3 700
Brass 4 390 Steel, Mild 5 900 – 6 100
C Cast Iron 3 500 – 5 600 Steel, Casting (4340) 5 850
Cast Iron (Modular  Graphite) 5 600 Steel, 303 Stainless (Austenitic) 5 660 – 6 120
Cast Grey Middle 4 600 Stellite 7 050
Copper 4 650 – 4 720 T Tin 3 300 – 3 330
Cadmium 2 770 – 2 800 Titanium 5 900 – 6 100
Chromium 6 200 Tungsten Carbon 6 650
G Gold 3 200 – 3 250 Tungsten 5 180 – 5 400
I Inconel 5 820 U Uranium 3380
Iron 5 890 – 5 930 W Wolfram 5 460
L Lead 1 960 – 2 400 Z Zinc 4 170 – 4 320
M Manganese 4 660 – 4 700 Zircaloy 2 4 700
Magnesium 5 770 – 5 840 Zirconium 4 650
Non-Metal
m/s m/s
A Acrylic 2 870 N Nylon 2 600 – 2 690
Acrylic Resin 2 730 – 2 870 O Oil (SAE 30) 1 740
Air 330 P Paraffin Wax 2 200
Aluminium Oxide 8 700 Perspex 2 860
C Ceramic (Macor) 5 631 Phenolic 1 400
Diamond 17 500 Plexi Glass 2 690
Diesel Oil 1 250 Polyamide 2 380
Epoxy Resin 2 650 Polyethylene 1 900 – 2 400
G Glass (Flint) 4 260 Polyurethane 1 780 – 1 900
Glass (Crown) 5 260 – 6 120 Polystyrene 2 340 – 2 400
Glass (Quartz) 5 570 Porcelain 5 600 – 5 900
Glass (Window) 6 800 PVC 2 400
Glycerine 1 930 Q Quartz X Cut 5 740
I Ice 3 980 Quartz Fused 5 980
H Hi-Density Polyethelene 2 220 – 2 300 Rubber (Butyl) 1 900
        (Grey & White, Not Black) R Rubber (Soft) 1 480
M Methylene-Oxide 9 980 Rubber (Vulc.) 2 300
Monel 5 360 – 5 400 S Silicone Rubber 948
Motor Oil (SAE 30) 1 750 T Teflon 1 350 – 1 520
N Neoprene 1 600 W Water 1470
NB Note : This Schedule is only a Guide

Instruction Manual

Elcometer 208 and 208DL Ultrasonic Thickness Gauges – Instruction Manual

Elcometer 208 and 208DL Ultrasonic Thickness Gauges Instruction Manual