Geokon 4911, Руководство по установке, Страница: 22 / 27

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APPENDIX A. SPECIFICATIONS
A.1 Rebar Strain Meters
Model: 4911 “Sister Bar” 4911A
Range
1
:
3000 µε
Rebar Sizes Available 2 : #4 #5, #6, #7, #8, #9, #10, #11, #14
Sensitivity: 0.025% FSR
Accuracy: 0.25% FSR
Linearity: 0.25% FSR
Operating Temperature: -20 to +80 °C
Operating Frequency: 1400-3200 Hz
Coil Resistance:
50 Ω , ±5 Ω
Length: 914 mm (36") 1105 mm (43.5")
Materials: Grade 60 Rebar, (60 ksi yield), and High Strength Steel
Electrical Cable:
Two twisted pair (Four conductor) 22 AWG
Foil shield, PVC jacket, nominal OD=6.3 mm (0.250")
Table 4 - Model 4911A/4911 Strain Meter Specifications
Notes:
1
The standard factory setting allows for 2000 µε in compression and 1000 µε in tension. Other
initial settings available upon request.
2
Consult the factory for other sizes available.
A.2 Thermistor
(See Appendix B also)
Range: -80 to +150° C
Accuracy: ±0.5° C