Page 52 - Demo

Mass concrete opening displacement
KJA-A/KJB-A Joint-meter
Civil engineering design
Excellent waterproofness
Long term stable measurement Easy Installation
KJA-A
M24x1.5
15 6 270
These models are used to measure joint opening displacement of
mass concrete. Two models are ready for different applications. KJB-A
The KJA-A Joint-Meter is embedded in an exclusive socket
mounted to concrete blocks made of mass concrete or other M24x1.5 materials, and is used to measure joint opening displacement.
The KJB-A is used to measure displacement on concrete
surfaces or underwater simply by manufacturing appropriate
fittings. Moreover, these models are available for waterproof type
displacement transducer. Optional model with built-in
thermocouple unit can be supplied.
Input/Output cable
M24x1.5
Input/Output cable
15
270
Protection ratings : IP 68 equivalent
15
■ SPECIFICATIONS
■ INSTALLATION EXAMPLE
Embedded in concrete
Socket KJF-11
Pre-laid concrete
Joint-Meter KJA-A
Post-laid concrete
TYPE
KJA-5A KJB-5A
KJA-10A KJB-10A
KJA-20A KJB-20A
KJA-50A KJB-50A
Capacity
5mm
10mm
20mm
50mm
Rated Output
1mV/V (2000×10-6 strain)
Non-linearity
1%RO
Allowable temperature range
-20 ~ +80°C
Input/Output resistance
350Ω
Recommended exciting voltage
2V or less
Allowable exciting voltage
10V
Weight
700g
Concrete surface
Anchor bolt
M10 (Supplied with collar
Joint-Meter
KJB-A
Collar
KJF-12
Joint opening or crack
.
Input/Output cable : φ9mm 0.5mm2 4-core shielded chloroprene cable 2m
■ ACCESSSORY
Socket KJF-11 KJA-A use
M24x1 5 DP12
Collar KJF-12 KJB-A use 23
2-φ3
Dummy plate KJF-13 KJB-A use 2 - 4.2 drill
10
310
65
Cap
φ10 4 - M4 DP10
Groove Width 2 Depth 2
8
170
185
8
Cable intake
Protective cover KJF-14
KJB-A use
8 - M5 Fixing Jig screw hole
150
50
500
150
4 Fixing Jig
70
450
12 55
45
65
65 45
80
20 30
φ44.4 φ50.8
8
50 30
30
4.2 4.2
φ40
φ40
φ30
φ30
φ36