HBM C16i series Mounting instructions

Mounting Instructions | Montageanleitung |

Notice de montage

English Deutsch Français

C16i

Hottinger Baldwin Messtechnik GmbH

Im Tiefen See 45

D-64239 Darmstadt

Tel. +49 6151 803-0

Fax +49 6151 803-9100

[email protected]

www.hbm.com

Mat.: 7-2002.5027

DVS: A1461-2.0 HBM: public

03.2017

E Hottinger Baldwin Messtechnik GmbH.

Subject to modifications.

All product descriptions are for general information only.

They are not to be understood as a guarantee of quality or

durability.

Änderungen vorbehalten.

Alle Angaben beschreiben unsere Produkte in allgemeiner

Form. Sie stellen keine Beschaffenheits- oder Haltbarkeits

garantie dar.

Sous réserve de modifications.

Les caractéristiques indiquées ne décrivent nos produits

que sous une forme générale. Elles n'impliquent aucune

garantie de qualité ou de durabilité.

Mounting Instructions | Montageanleitung |

Notice de montage

English Deutsch Français

C16i

2 A1461-2.0 HBM: public C16i

English

1 Safety instructions 3........................................

2 Markings used 6............................................

2.1 The markings used in this document 6..........................

2.2 Symbols on the product 7.....................................

3 Scope of supply 8..........................................

3.1 Mounting accessories (optional) 8..............................

4 Mounting 9.................................................

4.1 Mounting procedure 12........................................

4.2 Procedure for special mounting situations 15.....................

5 Electrical connection 19......................................

5.1 Bus wiring of several load cells 20...............................

5.2 External power supply 20......................................

5.3 Command set C16i... 23.......................................

6 Options 24..................................................

7 Specifications 25............................................

8 Dimensions (in mm, 1 mm = 0.03937 inches) 29................

Safety instructions

C16i A1461-2.0 HBM: public 3

1 Safety instructions

In cases where a breakage would cause injury to persons

or damage to equipment, the user must take appropriate

safety measures (such as fall protection, overload protec

tion, etc.). For safe and trouble‐free operation, the load

cell has to be correctly transported, stored, sited and

installed and must also be carefully operated and main

tained.

It is essential to comply with the relevant accident pre

vention regulations. In particular you should take into

account the limit loads quoted in the specifications.

Use in accordance with the regulations

The C16i... type digital load cell is conceived for weighing

applications. Use for any additional purpose shall be

deemed to be not in accordance with the regulations.

In the interests of safety, the load cell must only be oper

ated as described in the Mounting instructions. It is also

essential to observe the appropriate legal and safety reg

ulations for the application concerned during use. The

same applies to the use of accessories.

Take into account the maximum limit loads given in the

Technical data. The technical data for the load cell

applies within the specified load limits only.

The electronic system processing the measurement sig

nal must be designed such that no consequential dam

age is caused by the failure of the measurement signal.

The load cell can be used as machine components.

Please note that in these cases, in order to achieve high

sensitivity, the load cell has not been designed with the

safety factors normally applied in machine design.

Safety instructions

4 A1461-2.0 HBM: public C16i

The digital load cell is not a safety element within the

meaning of its use as intended. Proper and safe opera

tion of this load cell requires proper transportation, cor

rect storage, assembly and mounting and careful opera

tion and maintenance.

General dangers due to non‐observance of the

safety instructions

The C16i... load cell correspond to the state of the art

and are fail‐safe. The load cell can give rise to residual

dangers if it is inappropriately installed and operated by

untrained personnel.

Everyone involved with the installation, commissioning,

maintenance or repair of a force transducer must have

read and understood the Mounting Instructions and in

particular the technical safety instructions.

Residual dangers

The scope of supply and performance of the load cell

covers only a small area of weighing technology. In addi

tion, equipment planners, installers and operators should

plan, implement and respond to the safety engineering

considerations of weighing technology in such a way as

to minimize residual dangers. Prevailing regulations must

be complied with at all times. There must be reference to

the residual dangers connected with weighing technol

ogy.

Environmental conditions

In the context of your application, please note that all ma

terials which release chlorine ions will attack all grades of

stainless steel and their welding seams. In such cases

the operator must take appropriate safety measures.

Safety instructions

C16i A1461-2.0 HBM: public 5

Conversions and modifications

The load cell must not be modified from the design or

safety engineering point of view except with our express

agreement. Any modification shall exclude all liability on

our part for any damage resulting therefrom.

Qualified personnel

This load cell is only to be installed by qualified personnel

strictly in accordance with the technical data and with the

safety rules and regulations. It is also essential to ob

serve the appropriate legal and safety regulations for the

application concerned. The same applies to the use of

accessories.

Qualified personnel means persons entrusted with the

installation, fitting, commissioning and operation of the

product who possess the appropriate qualifications for

their function.

Prevention of accidents

Although the specified breaking load in the destructive

range is several times the nominal capacity, the relevant

accident prevention regulations from the trade associa

tions must be taken into consideration.

Markings used

6 A1461-2.0 HBM: public C16i

2 Markings used

2.1 The markings used in this document

Important instructions for your safety are specifically

identified. It is essential to follow these instructions in

order to prevent accidents and damage to property.

Symbol Significance

WARNING

This marking warns of a potentially dangerous

situation in which failure to comply with safety

requirements can result in death or serious physical

injury.

CAUTION

This marking warns of a potentially dangerous

situation in which failure to comply with safety

requirements can result in slight or moderate physical

injury.

Notice

This marking draws your attention to a situation in

which failure to comply with safety requirements can

lead to damage to property.

Important

This marking draws your attention to important

information about the product or about handling the

product.

Tip

This marking indicates application tips or other

information that is useful to you.

Information

This marking draws your attention to information

about the product or about handling the product.

Emphasis

See….

Italics are used to emphasize and highlight text and

references to other chapters and external documents.

Markings used

C16i A1461-2.0 HBM: public 7

2.2 Symbols on the product

CE mark

The CE mark enables the manufacturer to guarantee that

the product complies with the requirements of the rele

vant EC directives (the declaration of conformity is avail

able at http://www.hbm.com/HBMdoc).

Scope of supply

8 A1461-2.0 HBM: public C16i

3 Scope of supply

S Pendulum load cell with connection cable, flexible

tube and tube clip

S Dowel pin for rotation stop device (Load introduction

parts have to be ordered separately)

S Plastic bag with grease

S Mounting instructions

3.1 Mounting accessories (optional)

Thrust pieces

Mounting variation 1:

S C16/ZOU44A

Thrust pieces (stainless steel) for above and below

(1 Set = 2 pcs.), for use with C16.../≤60 t up to a

max. load per load cell of 40 t, incl. 3 excentric was

hers

Mounting variation 2:

S EPO3/50t

Thrust piece for above, incl. spanner

S C16/EPU44A

Thrust piece for below, incl. 3 excentric washers

Mounting

C16i A1461-2.0 HBM: public 9

4 Mounting

General hints

S Please handle the load cell carefully.

S Use appropriate lifting gear when mounting the

weighing device.

S Do not overload the load cell, not even for a short

time (e.g. due to unevenly distributed supporting

loads).

S If required, use supporting elements (dummies) of the

same height for alignment purposes.

The C16i... is a pendulum load cell designed to automati

cally restore the mounting construction to a stable initial

position in the case of a lateral displacement of the load

introduction (= skewing of the load cell). The maximum

permissible lateral displacement or skewing (see chap

ter 8 “Dimensions”) must not be exceeded, otherwise the

load cells or load introduction parts might be damaged.

The easiest and most common solution for this problem

are the appropriate stops on the mounting construction

(weighing platform) which must be carefully adjusted

within the specified values.

Mounting

10 A1461-2.0 HBM: public C16i

With the C16i..., we recommend the use of EPO3/50t

and C16/EPU44A or C16/ZOU44A mounting accessories

from HBM, because they permit easy mounting. The

rotation stop device welded onto the load cells and the

dowel pin provided are also suitable for this model type

(see chapter 8 “Dimensions”).

Preparation work for mounting

When using EPO3/50t, C16/EPU44A or C16/ZOU44A to

introduce and carry off the load, the following

preparations have to be made: A dowel pin is enclosed in

the packing for every load cell. This dowel pin and the

rotation stop welded onto the load cell prevent a potential

transducer microrotation, thus preventing the cable from

being damaged. Use a hammer to drive in the dowel pin

until it rests in the load introduction part's pocket bore.

Radially position the open side of the dowel pin.

CAUTION

or

Position of rotation stop dowel pin:

Radially position open side!

The bore depth ensures correct fitting of the pin. Only

one load introduction part per load cell must be equipped

with this pin. This load introduction part must be mounted

below the load cell to enable the dowel pin to engage into

the rotation stop recess (see chapter 8 “Dimensions”). No

Mounting

C16i A1461-2.0 HBM: public 11

pin must be introduced into the bore on the upper load

introduction part.

Tip

Please also refer to and comply with the special notes at

the end of this chapter.

The areas or foundations below the lower load introduc

tion part (for carrying off the load) and above the upper

load introduction part should be as even and level as

possible.

Practically drill the required borings for securing and fix

ing on the weighbridge resp. tank and base plate before

you mount the weighing platform. The dimensions for use

with EPO3/50t and C16/EPU44A or C16/ZOU44A are as

shown in the dimensioned drawings in 8.

Mounting

12 A1461-2.0 HBM: public C16i

4.1 Mounting procedure

Below, we use a weighbridge as an example for the me

chanical installation. We recommend that you proceed as

follows:

S Use appropriate lifting gear to lift one face of the

weighbridge that has already been centered.

S Prepare the load introduction parts and mount the part

with the rotation stop dowel pin below and the load

introduction part without the dowel pin above. The

lower load introduction part must be aligned such that

the dowel pin points in the direction in which, later on,

the cable outlet and the type plate are to be point,

although do not yet finally fix it.

CAUTION

or

Position of rotation stop dowel pin:

Radially position open side!

S Use a sufficient amount of the grease provided with

the load cells to protect from wear, tear, dirt and

corrosion the upper and lower load introduction parts

in the load carrying element, the dowel pin and the

rotation stop on the load cell.

Mounting

C16i A1461-2.0 HBM: public 13

CAUTION

Grease load introduction

parts and dowel pin

S Fix the lower load introduction parts with a spanning

washer when using EPO3/50t or eccentric washers

when using C16/EPU44A or C16/ZOU44A. For

subsequent sealing of the flexible tube, mount the

tube clip supplied with the load cell around the lower

compression pad.

S Now insert the load cells by rotating them into the

lower load introduction part such that the dowel pin

engages into the rotation stop recess.

Mounting

14 A1461-2.0 HBM: public C16i

S Now let down the weighbridge carefully such that

there is just no load on the load cells and that they

can be aligned perpendicularly. At the same time,

introduce the load cells' upper load introduction parts

into the upper load carrying element. For this purpose,

you can move the lower load introduction element

with the eccentric washers loosened. We recommend

that you use an appropriate prism level to check the

load cell's perpendicular mounting position by holding

it against the cylindrical housing tube. Then let down

the bridge and proceed in the same way for the other

face.

CAUTION

Align load cells vertically!

S After finishing themounting procedure, once again

check the perpendicular mounting position for all the

load cells, with the bridge swinging free and if

required, lift the bridge to correct the position. Exact

mounting is an important condition for accurate

measurements and minimum corner deviation.

S Once the final perpendicular alignment of all load cells

has been completed, turn the eccentric washers

towards the load introduction part and secure by

tightening the fixing screws.

S Turn the flexible tube already mounted on the load

cell down over the compression pad and directly fix it

on the compression pad using the tube clip.

Mounting

C16i A1461-2.0 HBM: public 15

CAUTION

There is no warranty in case of un-lubricated compres

sion pads and if the flexible tube has not been mounted

correctly!

4.2 Procedure for special mounting

situations

If there are extremely long distances between the sup

ports of the load cells or if the weighbridges bend easily,

the rolling movements of the load cell produced by a load

can cause discrepancies in the results. This rolling mo

tion is assisted by a lateral drift of the upper load cell load

introduction points under load, if the contact zone be

tween the load introduction part and the load cell is far

below the neutral bending axis of the weighbridge. To

minimize the discrepancies which occur in these cases,

the load cells can be mounted at a slight slant, set to a

maximum of 1° inwards.

Mounting

16 A1461-2.0 HBM: public C16i

neutral bending axis

unloaded

neutral bending axis

initial state (unloaded)

loaded

Alternatively, thin steel plates (approx. 0.5 mm thick) can

be placed under one side, under the load introduction

parts, at the given points.

Steel plates

Structurally, this effect can be counteracted by shifting

the bearing points on the weighbridge as far upward as

possible, towards the neutral bending axis.

Mounting

C16i A1461-2.0 HBM: public 17

CAUTION

Before loading the bridge for the first time by driving on it

with a truck / vehicle, do in any case adjust the lateral

stops such that the load cells' permissible skewings or

lateral displacements of the load introduction parts are

not exceeded (see chapter 8 “Dimensions”). Otherwise,

the load cells or load introduction parts might be dam

aged.

CAUTION

Adjust lateral stops of

the weighing platform

Notice

Type C16i... load cell is metal‐clad by laser‐welding and

made from rustproof materials. Therefore they comply

with protection class IP68 according to EN 60 529

(IEC 529) under the stated test conditions (see chapter 7

“Specifications”).

In general, the load cell permit steam jet cleaning. How

ever, the conditions for max. pressure, temperature, etc.,

stated in the EN 60 529 for protection class IP69K, must

be observed.

Mounting

18 A1461-2.0 HBM: public C16i

When EPO3/50t, C16/EPU44A or C16/ZOU44A mount

ing parts from HBM are used, the integral rotation stop

device, described in chapter 4 “Montage”, can be used.

With customized mounting parts, HBM provides drawings

showing the position and mounting of the rotation stop. In

this case, special attention must be paid to the obser

vance of the tolerances stated for the dowel pin position,

to prevent the load cells from being damaged.

Important

Only when the HBM specifications are followed will the

HBM warranty for the product be valid.

The C16/ZOU44A load introduction parts accessory kit

can be used as an economical alternative for load cells

with nominal loads up to 60 t.

Important

In this case, however, the maximum load for each load

cell must not exceed 40 t.

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