DCELL In-Cell Strain Gauge to Digital Data Converter

Description

The DCELL is a high performance digital signal conditioner for the precision measurement of strain gauge based transducers. It has been designed to fit inside the majority of sensors, providing a 'digital' load cell with the benefit of very high stability and an RS485 output.

LCM Systems offer the DCELL as a standalone product or built into most of our load cells. Including the DCELL into a load cell enables the building of very high accuracy load cells, using the built in linearization and temperature compensation facilities. LCM Systems can also supply PC based software packages, specially written to interface with DCELL based load cells and pressure transducers. Please contact our technical department to discuss your requirement.

For applications where it is not possible to fit the DCELL within the transducer, there is an in line housing available (model ILE).

Features

'In cell' data convertor
Baud rates to 230k
Diagnostics LED
High speed to 500 Readings/Sec
Low profile to fit in very small spaces
Noise Immunity 5x heavy industrial level
Operating voltage (5.4 - 18Vdc)
Peak and trough recording
Programmable dynamic filter
Real mV/V calibration
Remote shunt calibration
RS485 output
Simple mounting using M2 screw
Strain gauge bridge input
Very high stability
±15KV ESD protected

Specification

Dimensions

Options

Temperature Measurement Resolution (0.1degC) and Temperature Measurement Accuracy (1oC)

Applications

High accuracy Aircraft Weighing
Crane weighing, using LDD-LITE large digit display
Centre of Gravity PC based systems
Condition and safety monitoring systems

DCELL In-Cell Digital Strain Gauge to Data Converter

DCELL

► Simple mounting using M2 screw

► Connections via plated through holes

► Low profile to fit in very small apertures

► Baud rates to 230k

► High speed to 500 Readings/Sec

► ±15KV ESD protected

► Real mV/V calibration

► Noise Immunity 5x heavy industrial level

► Diagnostics LED

► Remote shunt calibration

► Very high stability

► Peak and trough recording

► Programmable dynamic filter

► Operating voltage (5.4 - 18Vdc)

The DCELL is a high performance digital signal conditioner for the precision measurement of strain gauge based transducers. The Micro Miniature PCB is designed to fit inside the majority of sensors, providing a 'digital' load cell with the benefit of very high stability and an RS485 output. LCM Systems offer the DCELL as a standalone product or built into most of our load cell based products. Including the DCELL into load cell based product enables the building of very high accuracy load cells, using the built in linearization and temperature compensation facilities. LCM Systems can also supply PC based software packages, specially written to interface with DCELL based load cells and pressure transducers. Please contact our technical department to discuss your requirements. For applications where it is not possible to fit the DCELL within the transducer, there is an in line housing available (Model ILE).

Description	Min	Typ	Max	Min	Typ	Max	Units
Product	DLCH High Stability			DLCS Industrial Stability
Bridge Excitation	4.5	5	5.25	4.5	5	5.25	VDC
Bridge Impedance	320	350	5000	320	350	5000	Ohms
Sensor Impedance (18v supply)	320	350	5000	320	350	5000	Ohms ∆
Sensor Impedance (12v supply)	120	350	5000	120	350	5000	Ohms ∆
Bridge Sensitivity	-3		+3	-3		+3	mV/V
Offset Temperature Stability		1	4		5	10	ppm/°C
Gain Temperature Stability		3	5		30	50	ppm/°C
Offset Stability with time		0.002	0.008		0.0035	0.016	%FR
Gain Stability with time			30			300	ppm of FR/1st year
Non Linearity		0.0005	0.0025		0.0005	0.0025	%FR
Internal Resolution		16 Million			16 Million		Counts/Divisions
Resolution @ 1Hz (Noise Stable)		400,000			100,000		Counts/Divisions
Resolution @ 10Hz (Noise Stable)		120,000			40,000		Counts/Divisions
Resolution @ 100Hz (Noise Stable)		50,000			10,000		Counts/ Divisions
Resolution @ 500Hz (Noise Stable)		18,000			5,000		Counts/ Divisions

Optional
Temp Measurement Resolution	0.1	0.1	°C
Temp Measurement Accuracy	1	1	°C
Notes	From original offset at any time Stability over 100 seconds Subject to supply voltage (see electrical specifications)

Electrical
	Min	Typ	Max	Min	Typ	Max	Units
Power Supply Voltage	5.4	12	18	5.4	12	18	Vdc
Power Supply Noise/Ripple			100			100	mVac pk-pk
Supply Current (350R Bridge)		45	60		45	60	mA
Power@10V Supply (350R Bridge)		350			350		mW
Excitation System		4 wire			4 wire

Communications
	Min	Typ	Max	Min	Typ	Max	Units
RS485 Data Rate	2400		230k	2400		230k	Baud
Protocols	ASCII, MANTRABUS II, Modbus RTU

CE & Environmental
Storage temperature	-40 to +85ºC
Operating temperature	-40 to +85°C
Relative humidity	95% maximum non-condensing
Safety/Low Voltage Directive	73/23/EEC amended by 93/68/EEC BS EN 61010-1:2001, IEC 1010-1-1990
EMC Directive	89/336/EECBasic Standard BS EN 61326:1998
EMC Emissions	BS EN 55011:1998
EMC Immunity	BS EN 61000-42:1995BS EN 61000-4-3:2002 BS EN 61000-4-3:2002 BS EN 61000-4-4:2004 BS EN 61000-4-11:2004

Click here to download - DCELL Datasheet
Click here to download - DCELL Instruction Manual

The DCELL offers a RS485 digital output (in various protocols). LCM Systems can offer the DCELL as part of a complete system, including sensors (and can be integrated into many sensors) and bespoke software, written specifically for your application. The software is usually developed using the Visuallink software platform. Contact LCM Systems to discuss your software/application requirements.

► High accuracy Aircraft Weighing
► Crane weighing, using LDD-LITE large digit display
► Centre of Gravity PC based systems
► Condition and safety monitoring systems

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