USB Load Cell Interface | USB Strain Gauge Digitiser | DSCUSB

At a Glance

Description

Applied Measurements DSCUSB strain gauge signal digitiser is a USB load cell interface designed to convert strain gauge transducer inputs into a digital USB serial output.  It is very compact and housed in a rugged plastic case rated to IP50 making it suitable for all indoor environments.

Our DSCUSB load cell interface plugs directly into your PC and requires no additional power supplies, as it derives all its power requirements directly from the USB bus.

The USB strain gauge signal digitiser interface utilises the ASCII protocol and features high resolution to 1 in 200,000, 7-point sensor linearisation and high speed to 100 readings/second.

PC-based calibration of the USB load cell interface is very easy to perform using the DSC-USB Toolkit software which is supplied free of charge.  The strain gauge signal can be read directly from the sensor or input numerically using the mV/V sensitivity figures from the load cell calibration certificate.  Other features includes linearization and temperature compensation.

The free Toolkit software also features a data logging function that allows the user to log data to a spreadsheet compatible CSV file at rated up to 100Hz.

Below you can download the DSCUSB Toolkit software which allows calibration and configuration of the DSCUSB module along with monitoring and data logging.  There is also a link to download the DSCLog24 which provides up to 24 channels of live monitoring and data logging.

If you require faster higher speed readings, try our new DSCUSB-FQ fast USB load cell interface, which delivers high-speed readings of 4800 samples per second!

Technical Specifications

Parameter	Min	Typical	Max	Units
Strain Gauge Measurement	4 Wire
Strain Gauge Excitation Voltage	4.5	5	5.25	Vdc
Strain Gauge Drive Capability	80	-	5000	Ohms
Strain Gauge Sensitivity	-3	2.5	3	mV/V
Offset Temperature Stability		1	4	ppm/˚C
Gain Temperature Stability		3	5	ppm/˚C
Offset Stability with Time		20	90	ppm of FR (1)
Gain Stability with Time			30	ppm of FR (2)
Non Linearity before Linearization		5	25	ppm of FR
Internal Resolution		16 Million		Counts/divs
Resolution @ 1Hz readings (noise stable) over 100s	Ohms	200,000		Counts/divs
Resolution @ 10Hz readings (Noise stable) over 100s		120,000		Counts/divs
Resolution @ 100Hz readings (Noise stable) over 100s		50,000		Counts/divs
Signal Filter	Dynamic recursive type user programmable
Power Supply Voltage	4.5	5	5.5	Vdc
Power Supply Current		68	75	mA
Data Transmission Rate		115.2		kbps
Output Cable Length			5	m
Output Temperature Measurement Resolution		0.0625		˚C
Output Temperature Measurement Accuracy (-10 to 85)		0.5		˚C
Output Temperature Measurement Accuracy (-55 to 125)		2		˚C
Output Temperature Update Speed		5		Seconds
Operating Temperature Range	-40		85	˚C
Storage Temperature	-40		85	˚C
Humidity	0		95	%RH
Protection	IP50
Dimensions – Cased Version	70.5 x 51 x 20mm excluding 9-way ‘D’ type socket connector.

Product Dimensions

DSCUSB Toolkit Software

Watch the How To video for a demonstration of how to use the DSCUSB toolkit.