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POSITION MEASUREMENT
INCREMENTAL & ABSOLUTE ENCODERS
POTENTIOMETRIC LINEAR TRANSDUCERS
MAGNETORESTRICTIVE TRANSDUCERS


 INCREMENTAL ENCODERS (A, B & Z channel outputs)
Body diameter 30mm to 115mm
2 to 25000 pulses per rev
Hollow shaft encoders for upto 78mm shafts
5 to 28 VDC supply
Upto IP67 shaft seal
Through shaft models
Cable encoders
Rack & pinion encoders
Magnetic encoders upto 16384 pulses/rev

 
ABSOLUTE ENCODERS (Binary or Gray code outputs)
Body diameter 40mm to 115mm
Single turn models upto 8192 resolution
Multiturn models upto 16384 revs
Parallel, SSI, ICO and Profibus outputs
Magnetic encoders upto
2000 bit/rev

 
ANALOG POSITION TRANSDUCERS (analog outputs)
3 & 10 turn rotary potentiometer
Single turn absolute encoder with analog output.
Linear potentiometers upto 1250mm
Magnetorestrictive transducers upto 1500mm 
 
 
QEM PROGRAMMABLE DIGITAL DISPLAYS
Counters
Tachometers
Position displays
 
 


New & Interesting ELTRA Products

Angular Position Transducers (analog out)
EML50 series
These single turn transducers have very high sealing upto IP67 and provide an analog signal (4-20mA, 0-5V, 0-10V) proportional shaft position. The measuring range can be a 0-90 deg, 0-180 deg, 0-270 deg or 0-360 deg. Unlike many potentiomneters, these are mechanically stopless and cannot be damaged by rotation over 360 degrees. They are based on an absolute encoder rather than a potentiometer so life is limited only by bearing life. Accuracy is upto 12 bits.

Compact Multiturn Encoder
EAM36 series
 
The EAM36 is a very compact multiturn encoder (36mm dia) using an innovative self powered Energy Harvesting Technology, based on the Wiegand System so gears and batteries are not required. Single turn resolution is 12 bit (4096) and number of turns resolution is 39 bit. Encoder sealing is IP65 and output is SSI (serial) for easy connection. Working temperature is upto 85 C.

 Heavy Duty Encoder
EH99
This incremental hollow shaft encoder is designed for rugged applications such as wind turbines, cranes and paper mills.  It has insulated bearings to avoid induced voltages damaging inernal circuitry and an extended working temperature opf 85 C. IP67 sealing is available.


ELTRA AND ENCODERS

Operation 

 
An encoder is a rotational transducer that converts angular movement into digital pulses. They use a radially graduated optical disk with an infra red transmitter one side and an optical receiver the other side. When the shaft is rotated, the light beam is interrupted and electronic pulses are produced. The pulses can be used to measure position, speed, acceleration and direction of rotation.

Applications 

 
Encoders are used in industrial production machines. Examples include textile production, CNC machines, robots, labelling machines, packaging machines. 

EMC Compliance 

 

 

 
Our E.M.C statement applies to the installation of these products. At the time of web site publication, all ELTRA encoders and sensors claim European CE and Australian C-tick conformity. The CE compliance is important for machine manufacturers seeking clients in European countries.

Interfacing 

 
ELTRA encoders can be interfaced to a wide range of devices like PLCs, computers, frequency to current converters, motion controllers and microprocessor based controllers. 

ELTRA 

 
ELTRA is based in Northern Italy and has been manufacturing encoders since 1985. Their ELTRA products are widely used in Europe and are often found in European machines located worldwide. Their products are manufactured and tested to ISO9001:2000 quality standards.

Product
Range
Size
 

 
The Eltra range consists of over 60 models of differing sizes, depending on the mechanical mounting required. Incremental encoders with upto 10000 pulses per rev and absolute encoders of upto 12 bit resolution are available. Rectilinear encoders and potentiometric position sensors are also available. Output styles can be NPN open collector, PNP, push-pull and line driver. Power supplies range from 5V to 28V. This makes it difficult to stock these products. 

Other
Products
 

 
ELTRA's main business is encoders. However, they now also manufacture linear and rotary potentiometers, encoder signal conditioners and encoders with analog outputs. 

Specials 

EL-40-A-100-S-5/28-P-6-X-3-P-R.365 
Some encoders are available with special variants. These are indicated by the 3 digit code on the end of the part number and have often been made for a specific machine manufacturer. The nature of the vaiant may be a special shaft or non standard electrical connectors.  

S.E.Asia
& Pacific 

ELTRA have authorised Automated Motion Systems to supply some countries in South East Asia and Pacific area where they do not have representation. Please contact office on sales@automotsys.com.au to see if we are able to assist you. 

Express
Service 

 
When an encoder on a machine is damaged, the cost of lost production time can be very high. We usually have shipments arriving every 3-4 weeks. To assist with breakdowns, ELTRA have an express encoder replacement service (at extra cost). Using this service, they can usually manufacture the encoder in 48 hours (not inc. weekends or public holidays) and ship it on a fast air freight. Contact our office on sales@automotsys.com.au for details.

Technical
Notes 

More info on using encoders and operation can be found in the Automated Motion Systems technical notes Using encoders in Motion Control

For assistance with encoder cable connections and connectors see
ELTRA Encoders - Support

General
Brochure 

 
Due to the large range of models and options available, we are unable to put all spec sheets on the web page. Please email Automated Motion Systems Pty. Ltd. for more detailed specifications on the Eltra encoders. A general brochure shows most of the models but this is continually being updated.

Encoder
Connections 

 
Datasheet showing connections for all encoders, their cables and connectors. 


INCREMENTAL ENCODERS (A, B & Z channel output)

 
EL-ER30 (E,H,I)
30mm diameter
1 to 2048 pulses/rev

 
EH38 (A,B,D)
38mm diameter
50 to 1024 pulse/rev

 
EL-ER40 (A,B,C,E,I,H,N,X)
42mm diameter
1 to 25000 pulse/rev

EH (17M,30M)
kit encoder
50 to 1024 pulse/rev
for motor feedback

EL-ER40 (G,)
1 to 2500 pulses/rev
45mm dia

EL53 (A,B)
53mm diameter
1 to 10000 pulse/rev
with flexible coupling

 
EL-ER63 (A,D,E)
63.5mm diameter
1 to 25000 pulse/rev

EL-ER58 (B,C,H,T)
58mm diameter
1 to 25000 pulse/rev

 
EH-EF-EW80 (C,P,K)
80mm diameter
shaft mounting
200-2048 pulse/rev
with motor commutation

 
EX80 (A,D)
1 to 10000 pulse/rev
80mm diameter
flameproof

 
EH-EL-ER90 (A,R)
90mm diameter
1 to 10000 pulse/rev

 
EH-EL-ER115 (A,R)
115mm diameter
2 to 10000 pulse/rev

 
RM500/RH200 (A,B.C)
with metric wheel
2 to 10000 pulse/rev
200 or 500mm wheel

EL38 (F,G)
38mm dia
hollow shaft mounting
1 to 25000 pulse/rev

 
EH-EL72 (A,B)
flange and coupling
1 to 10000 pulse/rev
 

EL40 (G,GR)
42mm dia
hollow shaft mount
1 to 2000 pulse/rev

 
EF36K
with commutation
1 to 2048 pulse/rev 

 

EL48 (C,P) 
48mm dia
with motor commutation
hollow shaft mount
1 to 2048 pulse/rev

EL/EF49 (C,P)
49mm dia
with motor commutation
hollow shaft mount
1 to 2048 pulse/rev

 

EF50 (F,G,K)
50mm dia
with motor commutation
hollow shaft mount
1 to 2048 pulse/rev
 

EF50 (FA,FP,GA,GP)
50mm dia
with motor commutation
hollow shaft mount
1 to 2048 pulse/rev
  

EL58/63 (F,G,P,FB,GB)
58/63mm dia
hollow shaft mount
1 to 25000 pulse/rev
  

EH/EF80 (C,P,K)
80mm dia
with motor commutation
hollow shaft mount
200 to 2048 pulse/rev
   

EH-EL88 (P)
through shaft mounting
1 to 2048 pulse/rev
upto 30mm shaft dia

EL120 (P)
through shaft mounting
1 to 2048 pulse/rev
upto 60mm shaft dia
 

 
EH88 (PE,PET)
through shaft mounting
500 to 2500 pulse/rev
upto 40mm shaft with key 
  EH80 (PFA,PFP)
f
or heavy duty motor feedback
85 C working tempo
upto 44mm shaft

EH80 (PU)
through shaft mounting
1000 to 2048 pulses/rev

ETMA
incremental
Magnetic linear encoder
upto 20m lengths
resolution 0.1 or 0.04mm
  

 
EV
2 to 10000 pulse/rev
58mm diameter
For CNC machines
 

 
EC34A
1 to 2000 pulse/rev
85mm square
rack & pinion
 

ERA
100 to 500mm
0.04mm resolution
Rectlinear
 

 
FE
cable extention encoder
incremental or absolute 
upto 4 metres cable
 

 
EH99
Heavy Duty Encoder
85 C working temp
512 to 3072 ppr 
IP67 seal
For wind generators & cranes

 
FES
cable extention encoder
incremental, absolute,
SSI, Profibus 
upto 13.5 metres cable
  

 
EMI22
Magnetic encoder
high temp, high sealing
no mechanical contact 
high speeds
100 to 2048 pulse/rev

 
EMI38
Magnetic encoder
high temp, high sealing
high speeds
100 to 2048 pulse/rev

 

 
EMI55
Magnetic encoder
high temp, high sealing
no mechanical contact 
high speeds
100 to 2048 pulse/rev

ETM (R)
high sealing
large shaft diameters upto 28mm
non contact
 
64 to 4096 pulse/rev
easy to install

 
EMI58 (RY) 
Magnetic encoder
for harsh environments
2 to 2048 pulse/rev
IP66 sealing

EMI63 (A,D)
Magnetic encoder
for nharsh environments
2 to 2048 pulse/rev
IP66 sealing 

 
EL63 (AX,DX)
stainless steel housing
IP66 rating
for offshore applications

EMI63 (AX,DX)
stainless steel housing
magnetic encoder
IP66 rating 

 
EL58
(PFA PFP PGA PGP)
for large shafts
insulated bearing option 
1 to 4096 pulse/rev

 
EMI40 (A)
magnetic encoder
high temperature to 100 C
2 to 2048 pulse/rev
IP66 sealing


SINGLE TURN ABSOLUTE ENCODERS (parallel, SSI, ICO, Profibus outputs)

EA58,63,90,115 (A,B,C,D,E,F,G)
Parallel Output

upto 8192 resolution
Gray code or binary output

EA58,63,90,115 (A,B,C,D,E,F,G)
SSI Output

upto 8192resolution
Gray Code or binary output

EA58,63 (A,B,C,D,E,F,G)
ICO Output
simplified wiring
upto 1024 resolution

 
EA120 (P)
Parallel Output
hollow shaft, upto 50.8mm dia
upto 4000 per rev 

 
EAX80 (A,D,AX,DX)
Parallel Output
flameproof
upto 8192 resolution

 

 
EMA-EMS22 (A,AY)
Parallel Output
magnetic Encoder
high temperature
high Sealing
high speed
upto 8102 pulse/rev

EMA50 (A,B,AY BY)
Parallel Output
magnetic encoder
high sealing
 
upto 8102 pulse/rev

 

EMA50 (F,FY,G,GY)
Parallel Output
 
magnetic encoder
high sealing
 
upto 8102 pulse/rev

EMA55 (A,AY)
Parallel Output
high speed
high sealing
magnetic encoder
no physical contact
 

EMA-EMS63 (A, D,)
Parallel Output
for harsh conditions
magnetic encoder
high sealing
 
upto 8102 pulse/rev

 
EA63 (AX, DX)
Parallel Output
For harsh conditions
ideal for offshore applications
upto 8192 pulse/rev
EA63 (AX, DX)
Profibus Output
For harsh conditions
ideal for offshore applications
upto 8192 pulse/rev


MULTI TURN ABSOLUTE ENCODERS (parallel, SSI, ICO, Profibus outputs)

EAM58,63,90,115 (A,B,C,D,E,F,G)
Parallel Output

upto 8192 resolution, 4096 turns
Gray code or binary output

EAM58,63,90,115 (A,B,C,D,E,F,G)
SSI Output

upto 8192 resolution, 16384 turns
Gray Code or binary output

EAM36 (A,F,G)
flange or shaft mounting
small size
IP65
8000 rpm
serial output
39 bit number of turns
12 bit positions per turn
SSI output

 

EAM W58 (B,C)
EAMW63 (D)
24 bit (12 per turn, 12 for uultiturn)
Wiegand system, self powered
IP67
SSI output
upto 85 C operation

 

EAM58,63,90,115 (A,B,C,D,E,F,G)
Profibus Output
simplified wiring
upto 8192 resolution, 4096 turns
EAM63 (AX,DX)
Profibus Output
upto 8192 resolution, 4096 turns

EAMX80 (A,D,AX,DX)
SSI Output
flameproof
upto 8192 resolution, 16384 turns

 

EAM36 (A,F,G)
SSI Output
magnetic encoder
compact size
12 bit resolution

ANALOG POSITION TRANSDUCERS (potentiometer & magnetorestrictive)


ELPA
rod potentiometer
upto 500mm
0.05% non linearity


EPLB
potentiometer
upto 500mm
Ball joint ends
0.05% non linearity


EPLC
cursor potentiomer
upto 1250mm
0.05% non linearity

 
EPA/B
Potentiometer output
10 & 3 turn


EPLT
potentiometer & spring rod
upto 100mm

EMSPA
magnetorestrictive
upto 1500mm

EMSPS
magnetorestrictive
upto 1500mm
SSI output

EMSPP
magnetorestricive
upto 1500mm
Profibus output

 

EMSSA
magnetorestrictive
upto 1500mm
for high pressure 

EMSSS
magnetorestrictive
upto 1500mm
SSI output 
for high pressure

EMSSP
magnetorestricive
upto 1500mm
Profibus output
for high pressure
 

EML38(F,G) 
analog output
8 bit resolution
90,180,270 or 360 deg

 
EML50(F,FY,G,GY) 
analog output
12 bit resolution
90,180,270 or 360 deg

 
EML50(A,AY,B,BY)
analog output
12 bit resolution
90,180,270 or 360 deg
  

Due to the large range of models and options available, we are unable to put all spec sheets on the web page. Please email Automated Motion Systems Pty. Ltd. for more detailed specifications on the Eltra encoders.  

DOWNLOAD GENERAL BROCHURE ON ELTRA PRODUCTS 

 

--------------------RELATED PRODUCTS-------------------

Taper bushes 

 

Flexible couplings 

 

CNC machined adapter plates and mountings for encoders, sensors, motors and gearheads. Machined from aluminium. Contact office with details for quote  

AUTOMATED MOTION SYSTEMS PTY. LTD. - WESTERN AUSTRALIA