HBM RTN User manual

Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
RTN

Hottinger Baldwin Messtechnik GmbH
Im Tiefen See 45
D-64239 Darmstadt
Tel. [phone]
Fax [phone]
[email protected]
www.hbm.com
Mat.: 7-2001.3106
DVS: A1153-2.0 HBM: public
08.2017
EHottinger 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 durablilité.

Mounting Instructions | Montageanleitung |
Notice de montage
English Deutsch Français
RTN

2A1153-2.0 HBM: public RTN
English
1 Safety instruction 3.........................................
2 Markings used 6............................................
2.1 Symbols on the product 6.....................................
2.2 The markings used in this document 6..........................
3 Mounting 7.................................................
4 Connection 10...............................................
4.1 Connecting in parallel of several Load cells 12....................
5 Technical Data 13............................................
6 Dimensions Load cell RTN... 16..............................
7 Accessory Pendulum mounts VPN 18.........................
8 Accessory Elastomer mounts VEN 20.........................

Safety instruction
RTN A1153-2.0 HBM: public 3
1 Safety instruction
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 must not only be correctly transported, stored, sited
and installed but must also be carefully operated and
maintained.
It is essential to comply with the relevant accident pre
vention regulations. In particular you should take into ac
count the limit loads quoted in the specifications.
Use in accordance with the regulations
RTN... type load cell is conceived for weighing applica
tions. Use for any additional purpose shall be deemed to
be not in accordance with the regulations.
In the interests of safety, the load cell should only be op
erated 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 load cell is not safety element 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 main
tenance.
General dangers due to non‐observance of the
safety instructions
The RTN... 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.

Safety instruction
4A1153-2.0 HBM: public RTN
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 cells
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.
Prohibition of own 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 which follow. It is also essen
tial to observe the appropriate legal and safety regula

Safety instruction
RTN A1153-2.0 HBM: public 5
tions 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 associa
tions must be taken into consideration.

Markings used
6A1153-2.0 HBM: public RTN
2 Markings used
2.1 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).
2.2 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
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.

Mounting
RTN A1153-2.0 HBM: public 7
3 Mounting
When mounting the load cells the following points are to
be noted:
SPlease handle the load cells with care!
SLoad cells are precision transducers, the achievable
accuracy therefore depends very much on correct
assembly!
SUse suitable lifting gear for mounting the weighing
device!
SDo not overload the load cell, not even temporarily
(e.g. by unevenly distributed support loads)!
SUse equal height dummies when carrying out align
ment work that may damage the load cell!
SEnsure point load application in the load cell's direc
tion of measurement. Use spherical thrust pieces with
sufficient radius (HBM accessory).
SAvoid transverse forces and moments (see also the
chapter ”Technical Data”)!
SDepending on the actual design provide for lift-off
protection devices and limit stops!
SBring the force introduction points of the load cells to
the same level. For this purpose, the mounting acces
sories include shims!
SProtect the load cell against
- one-sided heat radiation
- influences caused by subsequent welding work1)
1) Each load cell should be bridged by a twisted copper cable on assembly, or immediately there
after, (e.g. EEK... by HBM= approx. 16 mm2). This is how you prevent damage by welding cur
rents. The grounding of the load cell reduces the hazard of load cell damage by lightning.

Mounting
8A1153-2.0 HBM: public RTN
- major temperature variations!
SIn order to prevent fast wear, the force introduction
point should be greased. Please ensure that you do
not use too much grease as the cell butyl ring will
otherwise stick from a nominal load >4.7 t!
Assembly preparation
SThe site surfaces or foundations must be level and
horizontally aligned.
SThe contact area (baseplate of the load cell) must
meet special requirements (e.g. heat expansion coef
ficient 11⋅10-6/K).
SFor correct functioning, always use the original HBM
baseplate. This is included in the scope of delivery of
the HBM mounting accessories VEN and VPN.
Mechanical sources of error
Transverse forces
SThe load cell is not loaded exclusively in its direction
of measurement, caused by an incorrect assembly or
a construction with insufficient flexural strength.
During operation transverse forces can occur in the fol
lowing circumstances:
1. Breaking forces of a vehicle on a weighing bridge
2. Bending of the construction
3. Expansion of the construction due to temperature in
creases
4. Wind forces in the open air
5. Drive motors / mixers

Mounting
RTN A1153-2.0 HBM: public 9
If the transverse forces remain under the values specified
in the data sheet, measurement errors may occur, but no
lasting damage will be caused on the load cell.
If there is a risk that the permissible transverse forces
are exceeded, suitable measures are to be provided such
as e.g. control arms or shock absorber.
See also the chapter 1 “Safety instruction”, page 3.

Connection
10 A1153-2.0 HBM: public RTN
4 Connection
SRoute the connection cable of the load cell such that
any water condensate that might occur, or any humid
ity, can drip away downwards. It must not ingress into
the load cell in any way. In the connection area of the
cable end, users must ensure that no humidity can
ingress into the open cable.
SThe cable must be routed such that damage to the
external sheath by chafing and/or own movements is
prevented in daily operation.
SThe load cells have been designed in four wire
technology; a shortening of the cable is not permissi
ble.
SIn order to maintain full precision, cable extensions
should be carried out in six wire technology.
SThe cable is suitable for fixed routing, it may not be
bent. The smallest laying radius should not be less
than 300 mm. Tensile straining and twisting of the
cable during and after fitting are not permissible.
Notice
The cable union on the load cell must not be opened un
der any circumstances; if this should occur by mistake,
the load cell must be returned to the manufacturer's
works for repairs.
If elastomer bearings are used, the construction is insu
lated against the foundations. Note in this connection,
DIN/VDE 0100, Part 410, with regard to a necessary po
tential compensation.

Connection
RTN A1153-2.0 HBM: public 11
(red)
(black)
(blue)
(white)
Excitation(−)
Excitation (+)
Signal (+)
Signal (−)
Sense (+)
Sense (−)
Cable extension
(six-wire technology)
Load cell RTN...
(four-wire technology)
(green/yellow) Shield
Amplifier / Weighing electronic
(six-wire technology)
Fig. 4.1 Cable assignment RTN...
Electrical and magnetic fields often are the cause for the
introduction of disturbing voltages into the measuring cir
cuit.
Therefore:
SUse shielded low‐capacitance cable only (HBM cables
meet these requirements).
SDo not lay the measuring cables in parallel to power
cables, especially high‐tension and control lines. If
this is not possible, use steel conduits, for example, to
protect and shield the measuring cables.
SAvoid the stray fields resulting from transformers, mo
tors and contactors.

Connection
12 A1153-2.0 HBM: public RTN
4.1 Connecting in parallel of several Load
cells
Load cells are electrically connected in parallel by con
necting the same color wire ends of the connection
cable.
Important
The overload of an individual load cell cannot be de
tected on the output signal. The cable extension to the
follow-on electronics should be carried out in six wire
technology.
Amplifier Weighingelectronic
(red)
(black)
(blue)
(white)
Excitation (−)
Excitation (+)
Signal (−)
Signal (+)
Sense (+)
Sense (−)
Cable extensionJunction box (e.g. “VKK...” or “VKEX” from HBM)
(green / yellow) Shield
Fig. 4.2 Connecting in parallel of several Load cells

Technical Data
RTN A1153-2.0 HBM: public 13
5 Technical Data
Type / Maximum capacity (Emax)RTN 0.05 RTN C3
Maximum capacity (Emax)1 t ... 470 t
Accuracy class 0.05 C3 (OIML R60)
Maximum number of load cell
intervals (nLC)- 3000
Min. LC verification interval (vmin)% of
Emax
- 0.005
(= Emax / 20000)
Sensitivity (Cn)mV/V 2.85 "0.1 %
Temperature effect
on sensitivity (TKC)% of
Cn/
10K
"0.05 "0.008 1)
Temperature effect
on zero balance (TK0)"0.03 "0.007
Hysteresis error (dhy)
% of
Cn
"0.05 "0.02 1)
Non‐linearity (dlin)"0.05 "0.02 1)
Creep (dcr) over 30 min. "0.03 "0.017
Input resistance (RLC)
Ω
4450 "100
Output resistance (R0)4010 "2 4010 "0.5
Reference excitation voltage (Uref)
V
5
Nominal range of excitation voltage
(BU)
5 ... 30 (max. 60)
Insulation resistance (Ris)GΩ> 20
Nominal temperature range (BT)
°C [°F]
-10 ... +40 [+14 ... +104]
Service temperature range (Btu)-30 ... +80 [-34.4 ... +176]
(Option: up to +110 °C / +230 °F)
Storage temperature range (Btl)-50 ... +85 [-58 ... +185]
1) 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.

Technical Data
14 A1153-2.0 HBM: public RTN
Maximum capacity (Emax)t1 2.2 4.7 10 15 22 33
Weight (G), approx. kg 0.6 0.6 0.7 1.2 1.3 1.3 2.1
Safe load limit (EL)t 1.7 3.8 8 17 25 38 56
Breaking load (Ed)t 4 9 19 40 60 88 130
Permissible static side
load (Lq)
0.5 (Emax - 0.8 Lz),
but no higher than Lqmax = 0.3 Emax
(Emax = maximum capacity;
Lz= load in measuring direction)
Permissible dynamic load
(Fsrel) (vibration amplitude
acc. to DIN 50100)
% of
Emax 70
Deflection at Emax (snom),
approx. mm 0.13 0.12 0.12 0.17 0.18 0.21 0.25
Protection class accord
ing to EN60529 (IEC529) IP 68
Material:
Measuring element
Cable fitting
Cable-sheath
Stainless steel
Brass, nickel plated / Sealing: CR/NBR
Special silicon, RAL 7000 (gray), ∅6.5 mm
Maximum capacity (Emax)t47 68 100 150 220 330 470
Weight (G), approx. kg 4.3 4.8 7.0 8.6 22 29 50
Safe load limit (EL)t 80 115 170 250 380 500 700
Breaking load (Ed)t 190 270 400 600 770 1100 1500
Permissible static side
load (Lq)
0.5 (Emax - 0.8 Lz),
but no higher than Lqmax = 0.3 Emax
(Emax = maximum capacity;
Lz= load in measuring direction)
Permissible dynamic load
(Fsrel) (vibration amplitude
acc. to DIN 50100)
% of
Emax 70
Deflection at Emax (snom),
approx. mm 0.33 0.35 0.45 0.57 0.67 0.85 1.00

Technical Data
RTN A1153-2.0 HBM: public 15
4703302201501006847tMaximum capacity (Emax)
Protection class accord
ing to EN60529 (IEC529)
IP 68
(test conditions 100 h at 1 m water column)
Material
Measuring element
Cable fitting
Cable-sheath
Stainless steel
Brass, nickel plated / Sealing: CR/NBR
Special silicon, RAL 7000 (gray), ∅6.5 mm
Available Options
Explosion-proof versions according to ATEX:
Ex II 2G EEx ia IIC T4 resp. T6 (Zone 1)*)
Ex II 2D Ex tD A21 IP68 T 80 °C (Zone 21)*)
*) with EC-Type Examination Certificate
Ex II 3G EEx nA II T6 (Zone 2)
Ex II 3D IP68 T 80 °C (Zone 22 for non-conductive dust)
Service temperature range up to +110 5C
(not possible in connection with ATEX and / or Elastomer
mounts VEN)

Dimensions Load cell RTN...
16 A1153-2.0 HBM: public RTN
6 Dimensions Load cell RTN...
Scope of supply: Load cell with connection cable
depth of thread
7 mm
RTN... / 34,7 t RTN... / 10 t - 470 t
View X
53
~15 ∅C
H
K
∅A
∅B
WÄGEZELLE
LOAD CELL
L (1)
~15 ∅C
H
K
∅A
∅B
J
∅25F8
L (1)
(red)
(black)
Excitation (−)(blue)
(white)
(green−yellow)
Excitation (+)
Signal (+)
Signal (−)
Shield
Wiring code RTN... / 1 t - 470 t
Dimensions in mm; 1 mm = 0.03937 inches
(1)L = Cable length
X
WÄGEZELLE
LOAD CELL
RTN... jAjBjC H J K L
1 t 49 20 60 43 - 7.5 5 m
2.2 t 49 20 60 43 - 7.5 5 m
4.7 t 49 20 60 43 - 7.5 5 m
10 t 74 30 75 50 7 6.5 5 m
15 t 75 30 75 50 7 6.5 5 m
22 t 75 30 75 50 7 6.5 12 m
33 t 95 40 95 65 7 10 15 m
47 t 130 60 130 75 7 14 12 m

Dimensions Load cell RTN...
RTN A1153-2.0 HBM: public 17
LKJHjCjBjARTN...
68 t 130 60 130 85 7 14 12 m
100 t 150 70 150 90 7 16 12 m
150 t 150 70 150 100 7 16 5 m
220 t 225 100 225 130 10 24 5 m
330 t 225 100 225 145 10 24 5 m
470 t 270 120 270 170 10 28 5 m

Accessory Pendulum mounts VPN
18 A1153-2.0 HBM: public RTN
7 Accessory Pendulum mounts VPN
Scope of supply: Base plate, Pendulum, Center ring,
Shims, Collapsible tube grease, Screws
RTN/...T/VPN (Pendulum mounts for Load cells RTN... / 1 t - 100 t)
F
E
K
Top view
Material: Stainless steel
(1) = Permissible play
(2) = 4 Screws M5x12 DIN EN ISO 4762;
Torque: 4 N@m
(3) = Bore hole for ventilation
(4) = Earthing connection Dimensions in mm
∅25D10
h9
∅A
M
D
max. 5
H
12+1
∅B
M6
RTN... /
10 t ... 100 t (4)
±N(1)
12+1
∅6
∅B
RTN... / ≤4.7 t
∅A
M
max. 5
D
H
(3)
(2)
±N(1)
M6
∅25D10
h9
(4)
RTN... / ≤4.7 t