Description
Load cell PR 6212, converter Connexx® for maximum corrosion resistance
The load cell PR 6212 is a state-of-the-art product. This corrosion- resistant load cell has a compact design and also features high heat resistance. Its long product lifetime minimises downtime and ensures safer and more reliable processes in the chemical and steel industry.
Corrosion resistance and precision for demanding applications
- Stainless steel 1.4418, unique in weighing technology, ensures maximum corrosion resistance. The PR 6212 is also available with protective coating for use in extremely aggressive environments.
- The perfectly coordinated combination of the load cell PR 6212 and mounting kit PR 6012 meets all precision and handling requirements. The inverted installation provides additional corrosion protection for the load cell and is simple and failure-free.
- The compact design ensures a low system height and allows for easy retrofitting of weighing technology.
Less corrosion, more cost-efficiency
The combination of the load cell PR 6212 and mounting kit PR 6012 makes quick and easy installation possible and facilitates consistently reliable and precise measurement results in the chemical and steel industry.
Combined for reliable installation: PR 6212 and PR 6012 as a complete solution
The load cell PR 6212 is not only fully compatible with all mounting kits from the PR 6012 range but also with the previous PR 6011 range. The innovative complete solution ensures failure-free and efficient installation. Thanks to the integrated jack-up function there is no need for external lifting devices and even a load cell dummy is no longer required.
Load cell technical specifications
PR 6212 technical data
| Parameter | Description | Abbr. | PR 6212/.. LT 3)
(high-temperature load cell) |
PR 6212/.. C11)
PR 6212/.. C1-L2) (load cell with protective coating) |
Unit |
| Accuracy class | 0,25 | 0,04 | % Emax | ||
| Minimum dead load | lowest limit of specified measuring range | Emin | 0 | 0 | % Emax |
| Maximum capacity | highest limit of specified measuring range | Emax | 0,5; 1; 2; 3; 5 | 0,5; 1; 2; 3; 5; 10 | t |
| Safe load limit | upper limit of measurements | Elim | 150 | 150 | % Emax |
| Destructive load | danger of mechanical destruction | Ed | >300 | >300 | % Emax |
| Minimum LC verification | minimum load cell scale interval, vmin = Emax/Y | Y | – | 5000 | |
| Rated output | relative output at maximum capacity | Cn | 2 | 2 | mV/V |
| Tolerance on rated output | permissible deviation from rated output Cn | dc | <1,5 | <0,25 | % Cn |
| Zero output signal | load cell output signal under unloaded condition | Smin | 0±2 | 0±2 | % Cn |
| Reproducibility | max. change in load cell output for repeated loading | εR | <0,1 | <0,01 | % Cn |
| Creep | max. change of output signal at Emax during 30 minutes | dcr | <0,1 | <0,035 | % Cn |
| Linearity deviation4) | deviation from best straight line through zero | dLin | <0,25 | <0,03 | % Cn |
| Hysteresis4) | max. difference in LC output between loading and unloading | dhy | <0,25 | <0,035 | % Cn |
| Temperature effect on Smin | max. change of Smin per 10 K over BT referred to Cn | TKSmin | <0,1 | <0,028 | % Cn/10 K |
| Temperature effect on C4) | max. change of C per 10 K over BT referred to Cn | TKC | <0,07 | <0,02 | % Cn/10 K |
| Input impedance | between supply terminals | RLC | 1200 ±200 | 650 ±6 | Ω |
| Output impedance | between measuring terminals | R0 | 1200 ±6 | 610 ±1 | Ω |
| Insulation impedance | between measuring circuit and housing at 100 V DC | RIS | >5000 | >5000 | M Ω |
| Insulation voltage | between circuit and housing (PR 6212/..E only) | – | 500 | V | |
| Recommended supply voltage | to hold the specified performance | Bu | 4…24 | 4…24 | V |
| Max. supply voltage | permissible for continuous operation without damage
PR 6212/..E |
Umax
Umax |
32
– |
32
25 |
V
V |
| Nominal ambient temp. range | to hold the specified performance | BT | -10…+155 | -10…+40 | °C |
| Service temperature range | permissible for continuous operation without damage | BTu | -30…+180 | -30…+95 | °C |
| Storage temperature range | without electrical and mechanical stress | BTi | -40…+180 | -40…+95 | °C |
| Permissible inclination | permissible inclination whilst maintaining the specified measurement accuracy | 1 | 1 | angle in ° | |
| Vibration resistance | resistance against oscillations (IEC 60068-2-6-Fc) | 20 g, 100 h, 10…150 Hz | 20 g, 100 h, 10…150 Hz | ||
| Ambient pressure impact | influence of ambient air pressure on Smin | PKSmin | ≤70 | ≤60 | g/kPa |
| Nominal deflection | elastic deformation under maximum capacity | snom | <0,2 | <0,2 | mm |
| Material (sensor) | 1.4542 (DIN EN 10088-3) | 1.4418 (DIN EN 10088-3) | |||
| Protection class | according to IEC 529
– PR 6212: IP68*/IP69 – Connexx®: IP65 / IP 68** |
||||
| Cables | robust, flexible, shielded, length: 5 m | ||||
| PR 6212/.. LT
PFA, colour: red, Ø 5 mm, 4 x 0,382 mm2 |
PR 6212/.. C1
TPE, colour: grey, Ø 5 mm, 4 x 0,355 mm2 PR 6212/C1E TPE, colour: blue, Ø 5 mm, 4 x 0,382 mm |
||||
| Bending radius | fixed installation ≥50 mm, flexible installation ≥150 mm | ||||
1) C1 = load cell with C1 measurement accuracy | 2) C1-L = load cell with C1 measurement accuracy and special protective coating | 3) LT = high-temperature version
4) The data for Non-linearity, hysteresis and TKC are typical values. For OIML R60 or NTEP approved load cells the sum of these values is within the permissible cumulative error limits.
Connexx®
| Nominal ambient temp. range | To hold the specified performance | BT | -10 … +40 | °C |
| Usable temperature range | Permissible for continuous operation without damage | BTu | -30 … +60 | °C |
| Storage temperature range | Without electrical and mechanical stress | BTi | -30 … +70 | °C |
* The load cell can be submerged in water at a depth of 1.5 m for 10,000 hours. | ** The module can be submerged in water at a depth of 1.5 m for 100 hours.
Mounting kit technical specifications
| PR 6012 technical data | ||||||||||
| Maximum capacity of load cell PR 6212 |
Mounting kit/ accessories |
Material |
Description/comments |
Mounting screws |
Installation height |
Max. permissible horizontal force (kN) |
Horizontal destruc- tive force [KN] |
Max. permissible lift-off force (kN) | Maximum permissi- ble ecce,ntricity | Max. permissible vertical load without load cell |
|
500kg – 10t |
PR 6012/01 N, S |
Steel S235, stainless steel 1.4301 (AISI 304) |
Mini FLEX | M8 | 80
mm |
/ | / | / | +/- 4
mm |
/ |
| PR 6012/31 N, S | Mini FLEXLOCK | M8 | 80
mm |
5 | 10 | / | +/- 4
mm |
/ | ||
| PR 6012/41 N, S | Mini FLEXLOCK; reinforced constrainer | M12 | 80
mm |
20 | 50 | / | +/- 4
mm |
/ | ||
|
500kg – 10t |
PR 6012/02 N, S |
Steel S235, stainless steel 1.4301 (AISI 304) |
Maxi FLEX | M8 | 80
mm |
/ | / | 10 | +/- 4
mm |
5 t |
| PR 6012/32 N, S | Maxi FLEXLOCK | M8 | 80
mm |
5 | 10 | 10 | +/- 4
mm |
5 t | ||
| PR 6012/42 N, S | Maxi FLEXLOCK; reinforced constrainer | M12 | 80
mm |
20 | 50 | 10 | +/- 4
mm |
5 t | ||
|
PR 6012/53 S |
Stainless steel A2-70 |
Optional extension of lift-off protection (M12) for PR 6012/31 and PR 6012/32 |
/ |
/ |
/ |
/ |
25 |
– |
/ |
|
|
PR 6012/54 S |
Optional extension of lift-off protection (M16) for PR 6012/41 and PR 6012/42 |
/ |
/ |
/ |
/ |
45 |
– |
/ |
||
| PR 6012/63 S | Stainless steel 1.4301 (AISI 304) | Pivot for
PR 6212/ 500 kg – 10 t |
M8 | 80
mm |
12 | 70 | / | / | / | |
Converter Connexx®
Fitted with the converter Connexx®, the load cell PR 6212 offers a whole host of possibilities:
- The digital version guarantees fast signalling times for reliable dosing processes.
- Thanks to the use of field bus communication, the cable junction box is no longer needed.
- The standard interface CANopen ensures straightforward installation and calibration.
- CANopen allows for extra-long communication paths of up to 200 m.
- Weight values can also be generated individually – per load cell – meaning that defective load cells can be identified m
The mounting kit PR 6012/X1 was developed for use in the toughest conditions. The inverted installation of the load cell combined with the special high-quality material of the mounting kit make a complete solution capable of withstanding chemically aggressive, corrosive environments. The measurement results are also not affected by temperature fluctuations thanks to large lateral tolerances and the integrated horizontal constrainer. What‘s more, the mounting kit was designed to be especially easy and reliable to install.
| PR 6212 | Converter Connexx® |
|---|---|
 |
 |
| PR 6012/63 S | PR 6012/01 N, S |
 |
 |
| PR 6012/31 N, S | PR 6012/41 N, S |
|
|
 |
Mounting kit PR 6012/X2 dimensional drawings
In addition to the features of the PR 6012/X1 the mounting kit PR 6012/X2 range also has extensive additional functions that make installation and operation of the weighing technology easier. The integrated jack-up function eliminates the need for external lifting devices, while the integrated dummy function makes easy installation possible – without damaging the sensitive load cell. Lift-off protection up to 45 kN effectively prevents the vessel from tipping.
| PR 6012/02 N, S | PR 6012/32 N, S |
|---|---|
 |
 |
| PR 6012/42 N, S | |
 |
|
Approvals
Scope of validity:
PR 6212/… C1E (500 kg … 10 t)
Certificates for the load cell
| Zone | Labeling | Certificate number | for |
| 0 and 1 | II 1G Ex ia IIC T6 Ga
Ex ia IIC T6 Ga OEx ia IIC T6 (“) |
BVS 16 ATEX E 005
IECEx BVS 16.0005 |
PR 6212/..E only |
| 20 and 21 | II 1D Ex ta IIIC T160°C Da Ex ta IIIC T160 °C Da
Ex ta IIIC T160 °C X (“) |
TÜV 03 ATEX 2301 X IECEx TUN 17.0025X | PR 6212/..E only |
| 2 | II 3G Ex nA IIC T6 Gc 2 Ex nA IIC T6 X (“) | Certificate manufacturer | all PR 6212 except LT version |
| 22 | II 3D Ex tc IIIC T85 °C Dc Ex tc IIIC T6 X (“) | Certificate manufacturer | all PR 6212 except LT version |
| IS / I,II,III / 1 / ABCDEFG / T4A
Ta= -30 °C to 70 °C; T5 Ta= -30 °C to 55 °C – 4012 101 5688; Entity NI / I,II,III / 2 / ABCDEFG / T4A Ta= -30 °C to 70 °C; T5 Ta= -30 °C to 55 °C – 4012 101 5688; NIFW |
FM – Original project ID: 3001200 | all PR 6212 except LT version | |
| IS / I,II,III / 1 / ABCDEFG / T4A
Ta= -30 °C to 70 °C; T5 Ta= -30 °C to 55 °C – 4012 101 5688; Entity NI / I / 2 / ABCD / T4A Ta= -30 °C to 70°C; T5 Ta= -30 °C to 55 °C – 4012 101 5688; NIFW DIP / II,III / 2 / EFG / T4A Ta= -30 °C to 70 °C; T5 Ta= -30 °C to 55 °C – 4012 101 5688; NIFW |
FM – Canada project ID: 3053046 | all PR 6212 except LT version | |
| Ambient temperature in Ex-Area -30… +55 °C | |||
| (“) only with approval TP TC 012 (TRCU 012)
-52…+55 °C |
Ordering information
| Load cell PR 6212 | |||||
| Type | Order number | Type | Order number | Type | Order number |
| PR 6212/500 kg C1 | 940521201150 | PR 6212/2 t C1 | 940521201220 | PR 6212/5 t C1 | 940521201250 |
| PR 6212/500 kg C1E | 940561201150 | PR 6212/2 t C1E | 940561201220 | PR 6212/5 t C1E | 940561201250 |
| PR 6212/500 kg C1-L | 940581201150 | PR 6212/2 t C1-L | 940581201220 | PR 6212/5 t C1-L | 940581201250 |
| PR 6212/500 kg LT | 940541201150 | PR 6212/2 t LT | 940541201220 | PR 6212/5 t LT | 940541201250 |
| PR 6212/1 t C1 | 940521201210 | PR 6212/3 t C1 | 940521201230 | PR 6212/10 t C1 | 940521201310 |
| PR 6212/1 t C1E | 940561201210 | PR 6212/3 t C1E | 940561201230 | PR 6212/10 t C1E | 940561201310 |
| PR 6212/1 t C1-L | 940581201210 | PR 6212/3 t C1-L | 940581201230 | PR 6212/10 t C1-L | 940581201310 |
| PR 6212/1 t LT | 940541201210 | PR 6212/3 t LT | 940541201230 | ||
| Load cell PR 6212, converter Connexx® | ||
| Type | Description | Order number |
| PR 6212/DIGITAL KIT | The converter Connexx® can only be ordered with the above-mentioned load cells from the PR 6212 series. When ordering, both order numbers need to be given. | 940511200000 |
Additional information:
The converters Connexx® can be used with the Indicator X3.
To do this, the indicator X3 must be equipped with a CANopen interface card PR 5510/05 (940535510051).
| Load cell PR 6212, converter Connexx® – application sets | ||
| Type | Description | Order number |
| PR 6154/03 | Application set for 3 load cells.
Includes: 2 × PR 6155/05, 1 × PR 6152/25, 1 × PR 6153/99 |
940536154031 |
| PR 6154/04 | Application set for 4 load cells.
Includes: 3 × PR 6155/05, 1 × PR 6152/25, 1 × PR 6153/99 |
940536154041 |
| Load cell PR 6212, converter Connexx® – load cell accessories | ||
| Type | Description | Order number |
| PR 6152/10 | Connection cable between Connexx® and X3 (10 m) | 940536152101 |
| PR 6152/25 | Connection cable between Connexx® and X3 (25 m) | 940536152251 |
| PR 6152/40 | Connection cable between Connexx® and X3 (40 m) | 940536152401 |
| PR 6153/98 | Divided cable gland | 940536153981 |
| PR 6153/99 | Terminal resistor for Connexx®, M12 | 940536153991 |
| PR 6155/05 | Connection cable between Connexx® and Connexx® (5 m) | 940536155051 |
| PR 6155/10 | Connection cable between Connexx® and Connexx® (10 m) | 940536155101 |
| Mounting kit PR 6012 | ||
| Mounting kits without integrated constrainer | ||
| Type | Description | Order number |
| PR 6012/01 N | Mounting kit Mini FLEX for PR 6212/500 kg – 10 t | 940536012011 |
| PR 6012/01 S | Mounting kit Mini FLEX for PR 6212/500 kg – 10 t, stainless steel | 940536012012 |
| Mounting kits with integrated constrainer | ||
| Type | Description | Order number |
| PR 6012/31 N | Mounting kit Mini FLEXLOCK for PR 6212/500 kg – 10 t | 940536012311 |
| PR 6012/31 S | Mounting kit Mini FLEXLOCK for PR 6212/500 kg – 10 t, stainless steel | 940536012312 |
| PR 6012/41 N | Mounting kit Mini FLEXLOCK for PR 6212/500 kg – 10 t | 940536012411 |
| PR 6012/41 S | Mounting kit Mini FLEXLOCK for PR 6212/500 kg – 10 t, stainless steel | 940536012412 |
| Mounting kit with additional functions and without integrated constrainer | ||
| Type | Description | Order number |
| PR 6012/02 N | Mounting kit Maxi FLEX for PR 6212/500 kg – 10 t | 940536012021 |
| PR 6012/02 S | Mounting kit Maxi FLEX for PR 6212/500 kg – 10 t, stainless steel | 940536012022 |
| Mounting kit with additional functions and integrated constrainer | ||
| Type | Description | Order number |
| PR 6012/32 N | Mounting kit Maxi FLEXLOCK for PR 6212/500 kg – 10 t | 940536012321 |
| PR 6012/32 S | Mounting kit Maxi FLEXLOCK for PR 6212/500 kg – 10 t, stainless steel | 940536012322 |
| PR 6012/42 N | Mounting kit Maxi FLEXLOCK for PR 6212/500 kg – 10 t | 940536012421 |
| PR 6012/42 S | Mounting kit Maxi FLEXLOCK for PR 6212/500 kg – 10 t, stainless steel | 940536012422 |
| PR 6012/53 S | Optional extension of lift-off protection (M12) for PR 6012/31 and PR 6012/32 | 940536012532 |
| PR 6012/54 S | Optional extension of lift-off protection (M16) for PR 6012/41 and PR 6012/42 | 940536012542 |
| PR 6012/63 S | Pivot for PR 6212/500 kg – 10 t | 940536012632 |
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