SY018 Loadcell Amplifier

DIN rail mounted
4 to 20mA or ±10V output
17 to 30Vdc supply range
Protected against reverse supply connection
5kHz bandwidth (-3dB)

This DIN rail mounted loadcell amplifier is designed for use with strain gauge loadcells.

It provides industry standard current or voltage outputs for accurate interfacing of loadcells with control and monitoring systems.

This amplifier is ideally suited to engineering applications. Its small size and DIN rail mounting make compact multi-channel systems easy to implement.

The voltage output version of the amplifier has a bi-polar output for use with bi-directional loadcells even though it is powered from a uni-polar supply.

The amplifier is easily calibrated using non-interactive zero and span trimmers. When it is purchased with a loadcell it will be calibrated for use with the loadcell.

This amplifier can be used with any of our loadcells. Details of our loadcell families can be found in the Loadcell Specifier Guide.

**SY018 Specification**
Output	Current version: 4 to 20mA, loop resistance <400Ω
	Voltage version: ± 10V, load resistance >10kΩ, slew rate 0.1V/µS
Sensitivity	Factory set between 0.5 and 100mV/V
Span adjustment	±20%
Zero adjustment	Current version: 0.02 to 11mA at the output
	Voltage version: ±2V at the output
Non-linearity - typical	±0.02% of full range
Drift - typical	Zero: 0.1µV/°C at the input
	Span: 70ppm/°C
Loadcell supply	10Vdc at 150mA (4 x 350Ω loadcells)
Supply requirements	Nominal 24Vdc (17 to 30Vdc)
Maximum supply current	185mA
Operating Temperature	0 to +50°C
Case material	Grey flame resistant polyamide
Case dimensions	H 72.5mm (mounted on rail) W 18mm D 62mm
Rail types	Asymmetric to EN50035 (DIN46277-1)
	Symmetric to EN50022 (DIN46277-3)

**SY018 Order codes**
SY018	A	B	C	D
Replace A, B, C and D with the required codes from the list below.
A	Basic type
A	V for voltage output, I for current output.
B	Amplifier output
B	010 for ±10V, 420 for 4 to 20mA.
C	Loadcell excitation voltage
C	10 for 10V.
D	Loadcell output in mV/V
D	Usually 1.0 or 2.0, other values are possible.
Example: SY018I-420-10-2.0 This has a 4 to 20mA current output, 10V loadcell excitation and an input sensitivity of 2.0mV/V for full range.

If the SY018 does not have all the functions you require the LCA15 Intelligent Loadcell Amplifier may be more suitable. An LCA15 data-sheet is available in the on-line catalogue.

These instrumentation products comply with the requirements of the European EMC directive.

**Additional Information**
PDF data-sheet	Printable data-sheet. Right click on the link to download the file.
PDF instructions	Printable user instructions for the current output SY018. Right click on the link to download the file.
PDF instructions	Printable user instructions for the voltage output SY018. Right click on the link to download the file.

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