Description
Model F6171 Hydraulic ring force transducer
Geotechnical version up to 6,000 kN
The model F6171 hydraulic ring force transducer, geotechnical version, is available in measuring range 800 kN to 6,000 kN [179,847 lbf to 1,348,854 lbf]. The ring force transducers in geotechnical version are hydraulic force measuring units which, in conjunction with measuring or display instruments, can directly display the measured values or output them as an analogue signal. It is an extremely robust design in line with the requirements of geotechnical engineering.
The force is measured using the principle of hydraulics – the force acting on a piston leads to a pressure increase. This is then visualised, either directly by a connected display instrument or converted by means of a pressure sensor into an analogue signal.
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 F6171 | |
| Rated force Fnom | 0 … 800 kN to 0 … 6,000 kN [0 … 179,847 lbf to 0 … 1,348,854 lbf] |
| Nominal size | NS 383 |
| 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 |
| Limit force 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 EN/IEC 60529) | |
| Pressure gauge | IP65 |
| Digital pressure gauge/pressure sensor | IP67 |
| 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 10 … 30 V for current output |
| Load | ≤ (UB – 6 V) / 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 | As full-faced as possible, min. 75 % of the piston diameter |
| Weight | 122 kg [269 lbs] |
Dimensions in mm [in]
| Dimensions in mm [in] | |||||||||||||
| A | B | C | D | ØE | F | G | ØH | ØI | ØJ | ØK | L | M | N |
| 120 | 370 | 132 | 71 | 33 | 280 | 240 | 430 | 389 | 333 | 165 | 130 | 11 | 50 |
| [4.7] | [14.57] | [5.2] | [2.8] | [1.3] | [11] | [9.45] | [16.9] | [15.3] | [13.11] | [6.5] | [5.12] | [0.43] | [1.96] |
| Version | Pressure gauge, model 23x.50 Digital pressure gauge, model DG-10 Pressure sensor (on request) | |
| Rated force kN [lbf] | System pressure bar | |
| 800 [179,847] | 100 | ■ |
| 1,300 [292,252] | 160 | ■ |
| 2,000 [449,618] | 250 | ■ |
| 2,500 [562,022] | 315 | ■ |
| 3,500 [786,831] | 400 | ■ |
| 4,000 [899,236] | 500 | ■ |
| 5,000 [1,124,045] | 600 | ■ |
| 6,000 [1,348,854] | 700 | ■ |
| 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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