HBK HLCM User manual

HLCM
ENGLISH DEUTSCH FRANÇAIS
Mounting Instructions
Montageanleitung
Notice de montage

Hottinger Brüel & Kjaer GmbH
Im Tiefen See 45
D-64293 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbkworld.com
Mat.: 7-0101.0086
DVS: A01140 05 Y00 00
11.2022
EHottinger Brüel & Kjaer 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 allge
meiner Form. Sie stellen keine Beschaffenheits- oder
Haltbarkeitsgarantie 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.

HLCM
ENGLISH DEUTSCH FRANÇAIS
Mounting Instructions

HLCM
TABLE OF CONTENTS
2
TABLE OF CONTENTS
1 Safety instructions 3................................................
2 Markings used 5....................................................
2.1 The markings used in this document 5.................................
2.2 Symbols on the product 5............................................
3 General 6..........................................................
4 Mounting instructions 7.............................................
5 Mounting 8........................................................
6 Operation 9........................................................
7 Mounting examples 10...............................................
8 Connection 11.......................................................
9 Dimensions in mm (1 mm = 0.03937 inches) 14..........................
10 Specifications 16....................................................
10.1 HLCM weighing modules 16...........................................
10.2 Load cells HLCB... 17.................................................

3
HLCM
SAFETY INSTRUCTIONS
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 protection,
etc.). For safe and trouble‐free operation, weighing modules must not only be correctly
transported, stored, sited and installed but must also be carefully operated and main
tained.
It is essential to comply with the relevant accident prevention regulations. In particular
you should take into account the limit loads quoted in the specifications.
Use in accordance with the regulations
HLCM... type weighing modules are 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 weighing modules should only be operated as described in
the Mounting Instructions. It is also essential to observe the appropriate legal and safety
regulations for the application concerned during use. The same applies to the use of
accessories.
The weighing modules are not safety elements within the meaning of its use as intended.
Proper and safe operation of this load cell requires proper transportation, correct
storage, assembly and mounting and careful operation and maintenance.
General dangers due to non‐observance of the safety instructions
The HLCM... weighing modules correspond to the state of the art and are fail‐safe. The
weighing modules can give rise to residual dangers if they are 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 weighing modules covers only a small area
of weighing technology. In addition, 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 technology.

HLCM
SAFETY INSTRUCTIONS
4
Environmental conditions
In the context of your application, please note that all materials 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.
Prohibition of own conversions and modifications
The weighing modules 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
These weighing modules are only to be installed by qualified personnel strictly in
accordance with the technical data and with the safety rules and regulations which
follow. It is also essential to observe 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.
Accident prevention
Although the specified nominal capacity in the destructive range is several times the full
scale value, the relevant accident prevention regulations from the trade associations
must be taken into consideration.

5
HLCM
MARKINGS USED
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
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 in
formation 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
identify references to sections, diagrams, or external
documents and files.
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 relevant EC direc
tives (the declaration of conformity is available at
http://www.hbm.com/HBMdoc
).

HLCM
GENERAL
6
3 GENERAL
HBK supplies HLCM... weighing modules with maximum capacities of 110 kg; 220 kg,
550 kg, 1.1 t, 1.76 t, 2.0 t, 2.2 t and 4.4 t. They are mainly designed for tank weighing
applications and they are equipped with a lift‐off securing device.
The modules consist of a base plate, the load cell complete with load application ele
ments, and the cover plate. A pendulum support is used for the load application, provid
ing compensation for horizontal load shifts (as, for example, can arise through thermal
strain). The weighing modules are pre‐assembled and supplied with grounding cable.

7
HLCM
MOUNTING INSTRUCTIONS
4 MOUNTING INSTRUCTIONS
SIt should be ensured that the mounting / siting surfaces are clean, flat and level.
Depending on the installation circumstances, any levelling error can be compensated
for example by suitable wedges and compensating plates (weld on) or by grinding
away the mounting surface.
Important
On no account the module plates must be grind off.
SThe foundation/base frame must be sufficiently stiff so that no impermissible defor
mations (e.g. deflections) occur on loading.
SIn order to keep the mounting free of straining forces, the fastening holes on the base
frame and the tank joint must be sufficiently in alignment.
SUniform loading on the support points should be provided where possible. Correct
adjustment of the height on the supporting points must be ensured (have compensat
ing shims ready). This is especially important for statically undefined supports.

HLCM
MOUNTING
8
5 MOUNTING
SThe module is delivered with lifted cover plate. Prior to mounting, the cover plate has
to be lowered by unscrewing the nut.
SIt should be ensured when mounting the tank that, for example, no shock loads are
applied to the module when lowering it onto the supports. Even short‐term loads
which exceed the load cell limits can lead to damage.
SWith statically undefined supports, non‐uniform loading of the modules occurs due to
flexibility as the load is taken up or due to inadequate accuracy in the height adjust
ment. This non‐uniformity should be checked on the individual load cells by applying
an excitation voltage and comparing the output voltages. To prevent overloads, large
non‐uniformities should be compensated by inserting shims under those supports
which are least loaded.
SWith heavy tanks or unfavorable installation conditions the use of mounting aids (aux
iliary supports, jack equipment) is recommended.
SThe weighing modules should be mounted such that are free of transverse forces in
the initial state. This means that the mounted pendle support must be lined up as near
to the perpendicular as possible. This is the case when the foundation and tank joint
are horizontal and the mounting holes on the foundation and the tank are sufficiently
aligned.
SThe mounting plate and the cover plate should be firmly fixed to the foundation, re
spectively the tank joint.
SAs protection against welding currents that can damage the electronic parts of the
load cell, it is recommended that the EEK4 grounding cable is used.
SIn load cells with an additional outer braided wire over the cable (item no. K-HLCM
with option B2, together with codes 3R, 6R or 12R), this cable is only used for protec
tion against increased mechanical stress (e.g. damage caused by gnawing rodents).
To avoid accidental energization, the outer braided wire has to be connected to poten
tial equalization at least once. This outer braid is not used to shield the load cell. The
inner braid of the load cell cable is used for shielding.
Information
If the load cell is to be replaced, the upper module plate can be lifted by max. 1.5 mm.
Lock the nut in place to hold the upper module plate in this position. Dismounting the tank
itself is not required.
When replacing the load cell, the following tightening torques of the fastening screws must
be considered
110 kg - 2.0 t electrogalvanized 130 NVm
stainless 90 NVm
2.2 t - 4.4 t electrogalvanized 400 NVm
stainless 400 NVm

9
HLCM
OPERATION
6 OPERATION
SDust, dirt and other foreign bodies must not be allowed to collect in such a way that
movement of the transducer is restricted.
SThe load introduction device (pendle bearing) applies restoring forces which have a
self‐centering effect in the case of transverse forces. If these are exceeded, an inad
missibly large inclination of the pendle bearing and thus incorrect measuring results
or damage to the load introduction elements or the load cell can result.
SLateral displacements which exceed the maximum permissible value should be
avoided by aligning the other modules appropriately, or should be absorbed by other
stops or retention devices.

HLCM
MOUNTING EXAMPLES
10
7 MOUNTING EXAMPLES
Stay rod
Load introduction
Degree of freedom
120
°
120
°
120
°
90
°
90
°
90
°
90
°
Fig. 7.1 Mounting examples of weighing modules with stay rods
CAUTION
The represented bearing arrangements consider only weighing‐technical criteria.
The carrying and stability must be examined and guaranteed in each case by the operator.

11
HLCM
CONNECTION
8 CONNECTION
Load cells can be connected either to Carrier‐frequency‐amplifiers or DC‐amplifiers.
The load cell connection cable should be routed so that any condensed water or damp
ness forming on the cable can drip off. It must not be led to the load cell. In addition, it
must be ensured that no dampness can penetrate the open end of the cable.
6-wire circuit 1)
Wiring code
(white)
(black)
(grey)
Excitation (+)
(green)
(red)
Excitation (-)
Sense (-)
Signal (+)
(blue)
Sense (+)
Signal (-)
Shield, connected with housing
1) 1) When connecting to amplifiers in 4‐wire technique you must connect the wires blue to green and
black to gray. The following deviations occur with unshortened cables (3 m):
•sensitivity -0.2 %
•TKC -0.01 % / 10 K
Notice
Electric and magnetic fields often cause interference voltages to be coupled into the mea
surement circuit. Therefore:
SOnly use shielded, low capacity measurement cables (measurement cables by HBK
meet these requirements).
SDo not route these measurement cables in parallel to power and control lines. If this is
not possible, protect the measurement cable (e.g. by means of steel‐sheathed pipes).
SAvoid the leakage fields of transformers, motors and contactors.
Parallel connection of several weighing modules
The load cells of the weighing modules can be connected electrically in parallel by con
necting up the wire ends with the same color . For this HBK offers the junction boxes
VKK... or for use in intrinsically safe circuits and hazardous areas the junction box VKEX
(EEx e II T6). The output signal will then be the mean value of the individual output
signals.

HLCM
CONNECTION
12
CAUTION
In such cases, an overload situation on a single load cell cannot be detected from the out
put signal.
Cable extension
For extending cables, only use shielded low capacity measurement cables (measurement
cables provided by HBK1) meet these requirements). Ensure that there is a perfect con
nection with the lowest possible transition resistance. If you use the 6‐wire circuit, you
may neglect any interference by a change in the resistance of the extension cables. How
ever, if you extend the cable in a 4‐wire circuit, the characteristic value deviation may be
removed by adjustment. Temperature influences will be compensated only in 6‐wire cir
cuits.
Connector pin assignment for option with M12 male connector
Plug-in contact1 = measurement signal(+)
Plug-in contact2 = not in use
Plug-in contact3 = sense lead(+)
Plug-in contact4 = not in use
Plug-in contact5 = sense lead(-)
Plug-in contact6 = excitation voltage(-)
Plug-in contact7 = excitation voltage(+)
Plug-in contact8 = measurement signal(-)
1) e.g. HBK‐extension cable, 6 wires:
- KAB8/00‐2/2/2 (sold by the meter, order no. 4‐3301.0071 = grey or 4‐3301.0082 = blue)
- CABA1 (cable reel, order no. CABA1/20 = 20 m or CABA1/100 = 100 m in length)

13
HLCM
CONNECTION
When using HBK connection couplings
Pin assignment for 1-KAB168 Pin assignment for 1-KAB175
Color code Connection Color code Connection
White Measurement signal (+) White Measurement signal (+)
Red Measurement signal (-) Red Measurement signal (-)
Blue Excitation voltage (+) Blue Excitation voltage (+)
Pink Excitation voltage (-) Black Excitation voltage (-)
Green Sense lead (+) Green Sense lead (+)
Gray Sense lead (-) Gray Sense lead (-)
Yellow Not assigned
Brown Not assigned

HLCM
DIMENSIONS
14
9 DIMENSIONS IN MM (1 MM = 0.03937 INCHES)
Design with a fixed cable
Lifting device
(*For removing the load
cell, the upper plate can
be lifted max. 1.5 mm)
A
J
C
D
J
B
KE
FD
L
H
G
Max. capacity A B C D E F jG H J K C
110 kg, 220 kg,
550 kg, 1.1 t,
1.76 t, 2 t
93.6±1.6 170 100 70 17 136 14 15 19 17 104
2.2 t 125.3±2220 120 84 25.5 175 14 18 23 19.5 135
4.4 t 125.3±2220 120 84 25.5 175 14 18 23 19.5 135

15
HLCM
DIMENSIONS
Design with M12 male connector
Lifting device/anti-liftoff
device
(The upper plate can be
raised by a maximum of
1.5mm to remove the load
cell.)
Connector plug
Dimensions in mm
Max. capacity A B C D E F ØG
220kg; 550kg;
1.1t; 1.76t; 2t 93.6±1.6 170 100 70 17 136 13.5
2.2 t 125.3±2 220 120 84 25.5 175 14
4.4 t
Max. capacity H J K L (M) N P
220kg; 550kg;
1.1t; 1.76t; 2t 15 19 17 104 14.2 6.5 47.1
2.2 t 18 23 19.5 135 17 9.7 61.3
4.4 t 20.2 12.7 61.2

HLCM
SPECIFICATIONS
16
10 SPECIFICATIONS
10.1 HLCM weighing modules
Type HLCM
Maximum capacity 110 kg, 220 kg,
550 kg, 1.1 t,
1.76 t
2 t 1) 2.2 t,
4.4 t
Limit load
% of
max.
capacity
HLC/MLB... 150 130 150
HLC/MLBR... 120 105 120
Breaking load 200
Restoring force, for 1 mm side offset % of
applied
load
7.7
Max. permissible horizontal shift
transverse to the stay rod axis 2) mm 1.5
Max. permissible static horizontal
force in stay rod axis kN 10 22
Max. permissible lifting force 20 44
Material galvanized or stainless steel
Weight (depending on version, incl.
load cell) kg 7 ... 10
1) Not available in C3 class version!
2) For horizontal adjustment of upper module plate

17
HLCM
SPECIFICATIONS
10.2 Load cells HLCB...
Type HLC ... D1
Accuracy class according to OIML R 60 D1
Maximum number of load cell intervals
(nLC)
1000
Maximum capacity (Emax)
110 kg 220 kg 550 kg
1.1 t
1.76 t
2 t
2.2 t 4.4 t
Minimum LC verification interval
(vmin)
%
of Emax 0.0285
Sensitivity (Cn)mV/V 1.94 2.0 1.94
Sensitivity tolerance %± 0.5000
Temperature effect
on zero balance (TK0)% of Cn/
10 K
± 0.0400
Temperature effect on sensitivity
(TKC) 3) ± 0.0500
Hysteresis error (dhy) 3)
% of Cn
± 0.0500
Non‐linearity (dlin) 3) ± 0.0500
Creep (dcr) over 30 min. ± 0.0500
Input resistance (RLC) Ω> 350
Output resistance (R0)350 ± 2
Reference excitation voltage
(Uref)V
5
Nominal range of excitation volt
age (BU)0.5 ... 15 ( Ex‐Versions max. 12 V)
Insulation resistance (Ris)GΩ > 5
Nominal temperature range (BT)
°C [°F]
-10 ... +40 [+14 ... +104]
Service temperature range (Btu)-30 ... +70 [-22 ... +158]
Storage temperature range (Btl)-50 ... +85 [-58 ... +185]

HLCM
SPECIFICATIONS
18
Type HLC ... D1
Maximum capacity (Emax)
4.4 t 2.2 t
2 t
1.76 t
1.1 t
550 kg 220 kg 110 kg
Safe load limit (EL)
%
of Emax
150
Lateral load limit (Elq)100
Breaking load (Ed)300
Permissible dynamic load (Fsrel)
(vibration amplitude according
to DIN 50100)
70
Deflection at Emax (snom),
approx. mm 0.5
Weight (G), approx. kg 0.9 1.6 2.2
Protection class according to
EN60529 (IEC529) IP68
Material: Measuring ele
ment
Cable fitting
Cable‐sheath
Stainless steel
Stainless steel4) / Gasket: Viton
PVC
3) The data for Non‐linearity (dlin), Hysteresis error (dhy) and Temperature effect on sensitivity (TKC) are
typical values. The sum of these data meets the requirements according to OIML R60.
4) According to EN 10088-1