Synectic Electronics SY038 Bedienungsanleitung

SY038

Universal Load Cell Amplifier

User manual

Rev. 17-10-2017

Description

The SY038 is a versatile amplifier accepting signals from a range of wheatstone bri ge

type sensors.eg; loa cells, pressure sensors, torque trans ucers an some

accelerometers. It is enclose in a compact DIN rail mounting case.

The amplifier has switch selectable full scale input sensitivities, from 0.25 to 4.4mV/V. This

covers the vast majority of available loa cells. It has the ability to rive up to 4 x 350 ohm

loa cells, or 2 x 120 ohm loa cells.

The SY038 can be or ere to run off a range of power supplies. Options are 17 – 30VDC,

110 – 240VAC or an automotive option of 10-16VDC

Load cell amplifier as shipped

standard DC powered Unit AC Powered version (only available in IP65 wall mount case)

SY038 is supplied in different out put versions

•Voltage version +/- 10V

•Voltage version +/- 5V

•Current version 4-20mA

Features

i. The loa cell amplifier has switches use to select mV/V from 0.25 to 4.4mV/V in 16

steps (Double sensitivity HS version also available ,see figure 2)

ii. Amplifier has very high stability an accuracy on voltage an current out

iii. Unit is protecte against reverse polarity connection as well as having a very high

immunity to interference

iv. Unit is supplie as stan ar in a compact DIN rail mount case

Typical applications

The SY038 can be use with a maximum of 4 x 350Ω loa cells, an epen ing on the

application a 4-20mA output or +/-10V output signal will be obtaine . In or er to suit user

requirements the unit can be set up for any input as illustrate in fig. 2 using switches on

the reverse of the unit.

To get a bipolar output from a current version you can set the zero as 12mA so the max

negative value from the loa cell will be 4mA an the max positive value will be 20mA. To

achieve this the scaling switches will nee to be change as the full scale range will be

ouble that of the unipolar setup. For example, if you ha it set for 0 – 2mV/V, the bipolar

version woul be +/- 2mV/V, ie 4mV/V.

Fig 1: Switch settings for SY038 (HS version in lilac)

** To access the switches, lever off the cover of the amplifier (with the CE marking) from

the bottom right corner using a flat hea screw river.

nstallation

Before installation check that the unit is secure an not amage an that the

environment specifications for the pro uct are as in icate in the manual.

For the installation take into consideration the following:

I. Ensure the component is stable on installation an easy access to the component

II. Avoi contact with water or flui s for the safety of the unit. SY038 can be operate

in any in ustrial environment provi e the following limits are not excee e .

Operating Temperature: -20 to 100 (°C)

Storage temperature: -65 to 150 (°C

3.0 – 4.4mV/V(St )

1.5 - 2.2mV/V (HS)

1 2 3 4

2.9 - 4.2mV/V

1.45 - 2.1mV/V

2.8 - 4.0mV/V

1.4 - 2.0mV/V

2.7 – 3.8mV/V

1.35 - 1.9mV/V

2.4 - 3.4mV/V

1.2 - 1.7mV/V

2.3 - 3.3mV/V

1.15 - 3.15mV/V

2.1 - 3.0mV/V

1.05 -1.5mV/V

2.0 - 2.9mV/V

1.0 - 1.45mV/V

1.3 - 2.0mV/V

0.65 - 1.0mV/V

1.2 - 1.8mV/V

0.6 - 0.9mV/V

1.1 - 1.5mV/V

0.55 - 0.75mV/V

1.0 - 1.4mV/V

0.5 - 0.7mV/V

0.7 - 1.0mV/V

0.35 - 0.5mV/V

0.55 - 0.8mV/V

0.28 - 0.4mV/V

0.37 - 0.55mV/V

0.19 - 0.28mV/V

0.25 - 0.37mV/V

0.13 - 0.19mV/V

Specifications

Parameter Min Typ Max

Supply voltage (DC)

LV-DC

(AC)

110

24 30

240

Input sensitivity (mV/V)

High sensitivity (HS) version

0.25

0.125

4.4

2.2

Excitation voltage (V)

LV-DC

9.95 10

10.05

Ban wi th (-3 B)

2 pole low pass filters

Filtere Versions

5, 25, 50 or

100Hz

1.5kHz

unfiltere version

Current consumption (mA)

(Voltage version) inc. 350 Ω

inc. 350Ω Bri ge 50mA (1.17W)

Current consumption (mA)

(Current version)

“ 68 mA (1.6W)

Current Consumption (mA)

(Low voltage -DC version)

“ 31mA (1.2W)

Full scale step response (msec) 0.41

Zero temperature rift at output

(ppm/C)

Span temperature rift (ppm/C) 15

Non Linearity 0.002%

Zero a justment (V)

(Voltage version)

-4 4

Zero a justment (mA)

(Current version)

1 14

Span fine a justment -20% 20%

Output loa Voltage version (mA) -8 8

Output loa Current version (Ω) 0 650

Operating temp. 1x350Ω cell 24V

(°C)

-20 100

Operating temp. 4x350Ω cell 24V

(°C)

-20 65

Storage temperature (°C) -65 125

EMC Teste to BS EN 61000-4-21:2011

Case H (on rail) = 72.5mm, W = 18mm, D = 62mm.

Moul e in grey flame resistant polyami e.

For use with rails to EN50035 (DIN46277-1)

asymmetric or

EN50022 (DIN46277-3) symmetric.

Connections Rising Clamp terminals with 3.5 x 2.5mm apertures

Connections

Physical connections and dimensions

Fig 2: SY 38 input/output connections

Physical dimensions: 72.5mm x 18mm x 62mm

At the maximum operating temperature 1 350Ω loa cell can be use .

Graphs illustrating ban wi th, typical operating temperature of voltage out an current out

versions

SY038 BANDW DTH

Graph 1: SY 38 frequency response

Thermal stability of SY038

SY038V

Graph 2: SY038V span rift with temperature

Graph 3: SY038V zero offset

-40 -20 0 20 40 60 80 100 120

-0.70

-0.60

-0.50

-0.40

-0.30

-0.20

-0.10

0.00

0.10

0.20

Span

Temp

%Shift

-40 -20 0 20 40 60 80 100 120

-0.05

0.00

0.05

0.10

0.15

0.20

0.25

Zero offset

Temp

%Shift

Thermal Stability

SY038

Graph 4: Zero offset

Graph 5: Drift with temperature

Troubleshooting

Unit connecte to the loa cell but the output is going in the wrong irection.

Solution: Switch the connection of the signal wires.

Can't quite achieve require output.

Solution: Try the range on either si e by changing the switch settings. Alternatively

remove cover with connection etails & trim excitation voltage up or own to a just

max or min output using the trim pot in the bottom right corner.

Enquiries and trouble shooting

For any enquiries an problems with SY038 or other available pro ucts checkout our

website or sen email using the appropriate link below.

Website: www.synectic.co.uk

Email: [email protected]

-40 -20 0 20 40 60 80 100 120

-0.20

-0.15

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

Zero offset

Temp

%Shift

-40 -20 0 20 40 60 80 100 120

-0.30

-0.20

-0.10

0.00

0.10

0.20

0.30

0.40

0.50

0.60

Span

Temp

% Shift

DECLARATION OF CONFORMITY FOR

LOAD CELL AMPLIFIERS

Name of manufacturer or supplier: Synectic Design Lt

Registere office: 48 Brin ley Close

(inclu ing country of origin) Farnworth

Bolton

Lancashire

Englan

Postco e: BL4 0AG

Description of pro uct: SY038 Analogue Loa Cell Amplifiers

inclu ing all variants

Stan ar s un er which conformity is eclare :

BS EN 61326-1: 2006 Electrical equipment for measurement, control an

laboratory use-EMC requirements. Part1-2-3

BS EN 61000-4-2:1995, Immunity to electrostatic ischarge

1ec 61000-4-2:1995 Teste up an inclu ing level 8KV Air ischarge

BS EN 61000-4-3:2006 +A1:2008 Immunity to ra iate frequency electromagnetic fiel s

at 10V/M

BS EN 61000-4-4:2004 Immunity to electrical fast transient/burst. Test levels

Up to an inclu ing +/-4KV on supply ports an +/-2KV on

input/output signal an ata ports. (test Level 4)

Directive 2011/65/EU In relation to restriction of use of certain hazar ous

(RoHS2) substances in electrical an electronic equipment.

REACH (article 3) Synectic Electronics Lt are manufacturers of electronic

har ware. We are seen as a ‘ own stream user’ accor ing to REACH regulations. We are

therefore are not require to register with the European Agency for chemicals ‘ECHA’.

Name of authorise representative: Brian Peter Tonge

Position of authorise representative: Technical Director

Declaration

I eclare that, as the authorise representative, the above information in relation to the

supply/manufacture of these pro ucts, when use as recommen e , are in conformity with the

state stan ar s an other relate ocuments following the provision of EEC Directives.

Signature of authorise representative:

Date: 15/09/2015

Revision 17-1 -2 17

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