설명
Weighing module Contego®
For the hygienic, safe and accurate weighing of process vessels
The weighing module Contego® is intended for the hygienic weighing of process vessels and has been specifically designed to be easy to clean, as well as meeting another of the key criteria for safe and
efficient manufacturing processes by avoiding hygienically critical areas. The hygienically safe combination of a load cell and mounting kit was developed on the basis of EHEDG directive and helps to prevent product contamination.
Technical specifications
Weighing module Contego®
Weighing module Contego®
| Parameter | Description | Abbr. | D1 | C3 | Unit |
| Accuracy class | 0.04 | 0.015 | %Emax | ||
| Minimum dead load | Lowest limit of specified measuring range | Emin | 0 | %Emax | |
| Maximum capacity | Highest limit of specified measuring range | Emin | See Ordering information table | %Emax | |
| Safe load limit | Maximum load without irreversible damage | Elim | 150 | %Emax | |
| Destructive load | Danger of mechanical destruction | Ed | > 300 | %Emax | |
| Minimum load cell verification interval (OIML) For NTEP, see separate table | Minimum load cell verification interval, vmin = Emax/Y | Y | 5,000 | 14,000 | |
| Deadload output return | Factor for deadload output return after load (DR = 1/2*Emax/Z) | Z | 1,000 | 3,000 | |
| Rated output | Relative output at maximum capacity | Cn | 2 | mV/V | |
| Tolerance on rated output | Permissible deviation from rated output | dc | <0.25 | <0.07 | %Cn |
| Zero output signal | Load cell output signal under unloaded condition | Smin | <1.0 | <1.0 | %Cn |
| Reproducibility | Max. change in load cell output for repeated loading | R | <0.01 | <0.005 | %Cn |
| Creep | Max. change of output signal at Emax during 30 minutes | dcr | <0.03 | <0.015 | %Cn |
| Non-linearity | Max. deviation from best straight line through zero | dLin | <0.03 | <0.01 | %Cn |
| Hysteresis | Max. difference in LC output between loading and unloading | dhy | <0.04 | <0.015 | %Cn |
| Temperature effect (TK) on Smin | Max. change of Smin in BT | TKSmin | <0.028 | <0.01 | %Cn/10 K |
| Temperature effect (TK) on parameter | Max. change of C in BT | TKC | <0.03 | <0.01 | %Cn/10 K |
| Input impedance | Between supply terminals | RLC | 650 ± 6 | Ω | |
| Output impedance | Between measuring terminals | RO | 610 ± 1 | 610 ± 0.5 | Ω |
| Insulation impedance | Between measuring circuit and housing at 100 VDC | RIS | > 5,000 x 106 | Ω | |
| Insulation voltage | Between circuit and housing (only for Contego® incl. PR 6241/..E) | 500 | V | ||
| Recommended supply voltage | To hold the specified performance | Bu | 4 … 24 | V | |
| Max. supply voltage | Permissible for continuous operation without damage | Umax | 28 (Ex versions: 25) | V | |
| Nominal ambient temp. range | To hold the specified performance | BT | -10 … +55 | °C | |
| Usable ambient temp. range | Permissible for continuous operation without damage | BTu | -40 … +95 | °C | |
| Storage temperature range | Without electrical and mechanical stress | BTi | -40 … +95 | °C | |
| Permissible eccentricity | Permissible displacement from nominal load line | Sex | 5 | mm | |
| Vibration resistance | Resistance against oscillations (IEC 68-2-6-Fc) | 20 g, 100 h, 10 … 150 Hz | |||
| Barometric pressure influence | Influence of barometric pressure on output | PKSmin | <0.005 | <0.0025 | %Cn/kPa |
| Nominal deflection | Max. elastic deformation under maximum capacity | Snom | ≤0.3 | mm | |
| Permissible horizontal force | 7 kN | ||||
| Parameter | Description | Abbr. | D1 | C3 | Unit |
| Permissible vertical load with- out load cell | 1.5 t | ||||
| Permissible lift-off force | 8 kN | ||||
| Permissible force for jack-up | 15 kN | ||||
| Material | Sensor: stainless steel 1.4542 Mounting kit: stainless steel 1.4404 Bellows: silicon (FDA-compliant) | ||||
| Protection class | IP68/IP69 | ||||
| Cable | Length: 5 m Diameter: 5 mm Cross-section: 4 x 0.35 mm2 Cable sheath material: TPE | ||||
| Bending radius | ≥ 25 mm in case of fixed installation ≥ 75 mm in case of flexible installation | ||||
| NTEP classification PR 6241 | |||||||||
| NTEP | NTEP minimum load cell verification interval, vmin | ||||||||
| Maximum capacity | with OIML class | divisions nmax | 100 kg | 200 kg | 300 kg | 500 kg | 1 t | 2 t | Unit |
| Class III Multiple | D1 | 2,000 | 20 | 40 | 60 | 100 | 200 | 400 | g |
| Class III Multiple | C3 | 5,000 | — | 14.3 | 21 | 36 | 71 | 143 | g |
| Class IIIL Multiple | D1 | 5,000 | 6.7 | 13.3 | 20 | 33 | 67 | 133 | g |
| Class IIIL Multiple | C3 | 10,000 | — | 5 | 7.1 | 12 | 24 | 48 | g |
Technical diagrams
Weighing module Contego®
| Model | A [mm] | B [mm] | C [mm] | D [mm] | E [mm] |
| PR 6241/ 12…52 | 60 | 65 | 50 | 23 | M12 |
| PR 6241/ 13…23 | 60 | 65 | 50 | 30 | M12 |
Load cell PR 6241
Adapter plate PR 6041/80S
All dimensions in mm
Ex approval
Scope of validity: Weighing module Contego®
| Certificates for load cell PR 6241 | |||
| Zone | Labelling | Certificate number | For |
| 0 and 1 | II 1G Ex ia IIC T6 Ga Ex ia IIC T6 Ga | BVS 16 ATEX E 005 IECEx BVS 16.0005 | Contego® all types with “Ex” |
| 20 and 21 | II 1D Ex ta IIIC T160 °C Da Ex ta IIIC T160°C Da | TÜV 03 ATEX 2301X IECEx TUN 17.0025X | Contego® all types without “Ex” |
| 2 | II 3G Ex nA IIC T6 Gc | Manufacturer’s declaration | Contego® all types without “Ex” |
| 22 | II 3D Ex tc IIIC T85 °C Dc | Manufacturer’s declaration | Contego® all types without “Ex” |
Notice! The weighing module Contego® incl. the load cell PR 6241 is subject to the following restrictions: Gas explosions: Suitable for Zones 1 and 2 and explosion subgroups IIA and IIB. Dust explosions: Suitable for Zones 21 and 22 and explosion subgroup III if the following safety instructions are observed:
- Electrostatic charging of the folding bellows must be avoided.
- The Contego® must be permanently installed.
Ordering information
| Weighing module Contego® incl. load cell PR 6241, accuracy class D1 = 0.04%, cable outlet at side | |
| Type | Order number |
| Contego® 100 kg D1 A | 940524161110 |
| Contego® 200 kg D1 A | 940524161120 |
| Contego® 300 kg D1 A | 940524161130 |
| Contego® 500 kg D1 A | 940524161150 |
| Contego® 1,000 kg D1 A | 940524161210 |
| Contego® 2,000 kg D1 A | 940524161220 |
| Weighing module Contego® incl. load cell PR 6241, accuracy class C3 = 0.015%, cable outlet at side | |
| Type | Order number |
| Contego® 200 kg C3 A | 940524163120 |
| Contego® 300 kg C3 A | 940524163130 |
| Contego® 500 kg C3 A | 940524163150 |
| Contego® 1,000 kg C3 A | 940524163210 |
| Contego® 2,000 kg C3 A | 940524163220 |
| Weighing module Contego® incl. load cell PR 6241, accuracy class C3 = 0.015%, cable outlet at side, Ex version | |
| Type | Order number |
| Contego® 200 kg C3 Ex A | 940524163120 |
| Contego® 500 kg C3 Ex A | 940524163150 |
| Contego® 1,000 kg C3 Ex A | 940524163210 |
Accessories
| Adapter plate PR 6041/80S | |
| Type | Order number |
| PR 6041/80S | 940536041802 |
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