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  • Product Name: Rebar Detector TM-200
  • Product No.: TM-200
  • Brief Introdction:

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1. General Information
The TM 200 rebar detector is a lightweight, compact device for the non-destructive

location of rebar and for the measurement of concrete cover and bar diameters.
The measuring method is based on the eddy-current principle with pulse-induction.
The basic unit can perform the following functions:
-Locating rebars
-Measuring concrete covers
-Storing individual cover values and statistical evaluation
-Determining the bar diameters
 

2. Universal Probe
2.1 Functioning
The universal probe is designed to function in relation to the direction.
This means it reacts most sensitively to the rebars parallel to its longitudinal axis.
For this reason the probe should be positioned parallel to the bars to be tested and

moved over them sideways for scanning.
The probe has both a small and a large measuring range.
Use the → key to switch over between the two measuring ranges.
The large measuring range should only be used if the concrete cover is larger than

is showed in the table 2.1.
The probe automatically compensates for efforts caused by magnetic aggregates

in the concrete or special types of cement.
Tab. 2.1  The maximum allowable error of the detector(concrete cover  unit:mm)

the maximum

allowable error

first measuring

second measuring

±1

8-------59

10---------79

±2

60------69

80--------119

±4

70------90

120-------180

2.2 Measuring Ranges and Accuracy
Key:
1. The range of Bar diameter :Ф6mm~Ф32mm
2. The measuring range of concrete cover : 8mm---180mm
Tab. 2.2  The first measuring range of concrete cover(unit:mm)

Bar dia.

6

8

10

12

14

16

18

20

22

25

28

32

Min

8

9

10

10

10

10

10

10

10

12

12

12

Max

70

70

70

80

80

80

80

86

86

90

90

90

Tab. 2.3  The second measuring ranges of  concrete cover(unit:mm)

Bar dia.

6

8

10

12

14

16

18

20

22

25

28

32

Min

10

10

12

16

16

18

18

20

20

22

22

22

Max

100

110

120

130

130

140

140

160

160

160

160

160

2.3 Resolution
On concrete elements, measurements are often influenced by neighbouring bars.

3. Other Unit
Non volatile data memory for 30000 measured values
Graphics LC display, 128×128 pixels
Interface RS 232
Software for direct printing and for transferring measured values to the PC
Power supply with 6 batteries(1.5 V), the hours of energy supply is more than 30 hours

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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