설명
Model F6148 Hydraulic ring force transducer
Geotechnical version up to 1,500 kN
The model F6148 hydraulic ring force transducer, geotechnical version, is available in nominal size NS 146 to 1,500 kN [337,213 lbf].
A cylinder-piston combination, filled with hydraulic medium, in a steel version with surface coating or in stainless steel version (option), forms the basis of the anchor force measuring system.
For nominal size NS 146, the force-bearing surface of the piston is 146 mm2 [0.23 in2] and the rated displacement of the piston does not exceed 0.5 mm [0.02 in].
Both the mechanical and the electrical version are optionally available with directly attached measured value pick-up/display (capillary line or adapter “separation without any losses”) as well as with an external version. It is an extremely robust design, in line with the requirements of geotechnical engineering.
With these hydraulic force measuring units, clamping forces are detected at the anchor head in a simple way and brought directly to the display. The force measuring units are used for continuous monitoring of anchors and other bracing rods/cables. Applications for hydraulic force measuring units can be found in the field of geotechnology in various fields such as tunnel construction, bridge building and slope stabilisation.
Specifications per VDI/VDE/DKD 2638
| Model F6148 | |
| Rated force Fnom | 0 … 150 kN to 0 … 1,500 kN [0 … 33,721 lbf to 0 … 337,213 lbf] |
| Nominal size | NS 146 |
| Display | ■ Pressure gauge, model 23x.50 (NS 100) ■ Digital pressure gauge, model DG-10 ■ Pressure sensor (on request) |
| Relative linearity error dlin | |
| Pressure gauge | ≤ ±1.0 % Fnom |
| Pressure sensor/digital pressure gauge | ≤ ±0.5 % Fnom |
| Temperature effect on | |
| the characteristic value TKC | 1 % Fnom /10 K |
| the zero signal TK0 | 1 % Fnom /10 K |
| Force limit FL | 100 % Fnom |
| Breaking force FB | > 130 % Fnom |
| Rated displacement snom | < 0.5 mm [< 0.02 in] |
| Rated temperature range BT, nom | -30 … +60 °C [-22 … 140 °F] |
| Ingress protection (per IEC/EN 60529) | |
| Pressure gauge | IP65 |
| Pressure sensor | IP67 |
| Digital pressure gauge | IP65 |
| Case | ■ Steel, electrogalvanised ■ Stainless steel (option) |
| Piston | ■ Steel, electrogalvanised ■ Stainless steel (option) |
| Guard bracket | |
| Pressure gauge | Yes |
| Digital pressure gauge/pressure sensor | Optional |
| Mounting type | |
| Pressure gauge | Direct mounting |
| Digital pressure gauge/pressure sensor | Direct mounting |
| Option | ■ Capillary ■ Measuring hose for “separation without any loss less connection“ |
| Output signal | 4 … 20 mA, 2-wire |
| Analogue output | |
| Supply voltage | DC 0 … 30 V for current output |
| Load | ≤ (UB – 6V) / 0.024 A |
| Electrical connection | ■ Circular connector M12 x 1, 4-pin Hand-held ■ Measuring instrument ViSens E3908 (option) |
| Fill fluid | Glycerine 70 % / water 30 % |
| Force introduction (FIT) | As full-faced as possible, min. 75 % of the piston diameter |
| Weight | 13.5 kg [29.76 lbs] |
Dimensions in mm [in]
| Dimensions in mm [in] | |||||||||||||
| A | B | C | D | ØE | F | G | ØH | ØI | ØJ | ØK | L | M | N |
| 120 [4.7] | 255 [10] | 132 [5.2] | 71 [2.8] | 33 [1.3] | 164 [6.45] | 133.5 [5.25] | 220 [8.7] | 194 [7.6] | 168 [6.6] | 90 [3.5] | 55 [2.16] | 5 [0.2] | 19 [0.75] |
| 105 [4.1] | |||||||||||||
| Version | Pressure gauge Model 23x.50 (NS 100) | |
| Rated force kN [lbf] | System pressure bar | |
| 150 [33,721] | 100 | ■ |
| 250 [56,202] | 160 | ■ |
| 350 [78,683] | 250 | ■ |
| 450 [101,164] | 315 | ■ |
| 600 [134,885] | 400 | ■ |
| 750 [168,607] | 500 | ■ |
| 900 [202,328] | 600 | ■ |
| 1,000 [224,809] | 700 | ■ |
| 1,200 [269,771] | 800 | ■ |
| 1,400 [314,733] | 950 | ■ |
| 1,500 [337,213] | 1,000 | ■ |
| Other rated loads and versions on request | ||
■ = possible selection
Pin assignment, analogue output
| 4…20 mA (2-wire) | ||
| Pin | Connection identification | |
| Supply UB+/S+ | 1 | Brown |
| Supply UB-/S- | 3 | Blue |
| Signal S+ | 1 | Brown |
| Signal S- | 3 | Blue |
| Shield | case | case |
Output 4…20 mA, 2-wire
Circular connector M12 x 1, 4-pin
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