Flintec RC3 User Guide
Type RC3 Load Cell
Product Description
The type RC3 is a stainless steel self centering rocker column load cell
with complete hermetic sealing. It is a perfect fit for use in harsh industrial
environments.
Application
Weighbridges, hoppers, tanks and silos
Key Features
Wide range of capacities from 7.5 t to 300 t
Stainless steel construction
Environmental Protection IP68 with complete hermetic sealing
Self restoring design
High input resistance
Calibration in mV/V/Ω
Option
Integrated surge protectors
IP68
APPROVED
Approvals
OIML approval to C1 (Y = 5 000), C3,
C3 MI8 and C4 (Y = 15 000)
NTEP approval to 6 000 intervals, Class III
(for 7.5 to 75 t)
ATEX hazardous area approval for Zone
0, 1, 2, 20, 21 and 22
FM hazardous area approval
Packed Weight
Capacity (t) 7.5 15 22.5 30 40
Weight (kg) 1.3 1.4 1.5 3.3 3.6
Capacity (t) 50 100 150 300
Weight (kg) 4.5 4.7 8.5 26.5
Available Accessories
Compatible range of application hardware
Compatible range of electronics
A48-Rev8-GB-1(2)
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Specifications
Maximum capacity (E
Minimum dead load (E
) t
max
) 2%*E
min
Accuracy class according to OIML R60 (GP) C1 C3 C3 MI 8 C4
Maximum number of verification intervals (n
Minimum load cell verification interval (v
Temp. effect on minimum dead load output (TC
Temperature effect on sensitivity (TC
) n.a. 1 000 3 000 4 000
LC
) n.a. E
min
) %*RO/10°C ≤ ± 0.0400 ≤ ± 0.0280 ≤ ± 0.0093
0
) %*RO/10°C ≤ ± 0.0200 ≤ ± 0.0160 ≤ ± 0.0100 ≤ ± 0.0080
RO
Combined error %*RO ≤ ± 0.0500 ≤ ± 0.0300 ≤ ± 0.0200 ≤ ± 0.0180 ≤ ± 0.0180
Non-linearity %*RO ≤ ± 0.0400 ≤ ± 0.0300 ≤ ± 0.0166 ≤ ± 0.0166 ≤ ± 0.0125
Hysteresis %*RO ≤ ± 0.0400 ≤ ± 0.0300 ≤ ± 0.0166 ≤ ± 0.0062 ≤ ± 0.0125
Creep error (30 minutes) / DR %*RO ≤ ± 0.0600 ≤ ± 0.0490 ≤ ± 0.0166 ≤ ± 0.0062 ≤ ± 0.0125
Rated Output (RO) mV/V 2 ± 0.1%
Calibration in mV/V/Ω (A...I classified) % ≤ ± 0.05 (≤ ± 0.005)
Zero balance %*RO ≤ ± 5
Excitation voltage V 5...15
Input resistance (R
Output resistance (R
) Ω 1 150 ± 50
LC
) Ω 1 000 ± 2
out
Insulation resistance (100 V DC) MΩ ≥ 5 000
Safe load limit (E
) %*E
lim
Ultimate load %*E
Compensated temperature range °C –10...+40
Operating temperature range °C –40...+80 (ATEX –40...+60)
Load cell material stainless steel 17-4 PH (1.4548)
Sealing complete hermetic sealing; cable entry sealed by glass to metal header
Protection according EN 60 529 IP68 (up to 2 m water depth) / IP69K
The limits for Non-Linearity, Hysteresis, and TC
The sum of Non-linearity, Hysteresis and TCRO meets the requirements according to OIML R60 with pLC=0.7.
are typical values.
RO
7.5 / 15 / 22.5 / 30 / 40 /
50 / 100 / 150 / 300
max
max
7.5 / 15 / 22.5 / 30 / 40 / 50
max
/5 000 E
max
200
300
max
/15 000
Dimensions (in mm)
TOP VIEW
ØD2
* RF**
max
mandatory
main rocking direction
S
ØD1
H4
H2
H1
H3
H5
H6
H7
H8
Type H1 H2 H3 H4 H5 H6 H7 H8 D1 D2 S
RC3-7.5 t 89 44 17 23 11 6 28 75 28 65 4.5 11 kN
RC3-15 t 89 44 17 23 11 6 28 75 28 65 4.5 20 kN
RC3-22.5 t 89 44 17 23 11 6 28 75 28 65 4.5 30 kN
RC3-30 t 140 70 26 28 13 6.5 39 84 39 81 10.5 34 kN
RC3-40 t 150 75 31 33 13 11.7 39 84 39 81 10 37 kN
RC3-50 t 178 89 32 34 17 8.5 44 94 44 99 9 51 kN
RC3-100 t 178 89 38.5 38.5 17 12 62 93.8 62 141.3 11.5 152 kN
RC3-150 t 210 105 42.7 42.7 20.6 12.8 76.2 121.5 76.2 165.1 14.5 240 kN
RC3-300 t 280 140 55.9 55.9 25 21.5 100 121.5 100 165.1 15 468 kN
* S
= maximum lateral displacement of load introduction. Recommended gap 2...3 mm for 7.5...22.5 t, 3...5 mm for 30...300 t.
max
** RF = restoring force at S
max
and E
max
.
Wiring
The load cell is provided with a shielded, 4 conductor cable
(AWG 24 for 7.5 to 22.5 t / AWG 20 for 30 to 300 t). Cable jacket polyurethane
Cable length: 12 m for 7.5 to 22.5 t
18 m for 30 to 300 t
Cable diameter: 5 mm for 7.5 to 22.5 t
7.8 mm for 30 to 300 t
The shield is floating (On request the shield can be connected to the load cell body).
A48-Rev8-GB-2(2) Dimensions and specifications are subject to change without notice.
+ Excitation
+ Signal
– Excitation
– Signal
Shield
(green)
(white)
(black)
(red)
(yellow)
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