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4-20 mA Process Current Loop Data Acquisition

DATAQ Instruments offers a wide range of environmental 4-20 mA current loop data acquisition products for any application and budget. Choose from Ethernet or USB interfaces, and stand-alone or PC-connected configurations. Included software acquires, displays, reviews, and exports data with ease and without programming. Our hardware and software combinations take you from concept to results in minutes. Most products shown here are voltage mode input devices, but are easily converted to measure 4-20 mA with an inexpensive external shunt resistor that we sell as an accessory (model R250.) This application note shows you how: Learn more about 4-20mA current loop measurements.

R250

4-20mA Current Loop Shunt Resistor

$ 2.99
R250 Shunt Resistor

Description

250 Ω ±0.1% Precision, Metal Film, 1/2W, Axial Resistor
Exceptionally low noise; typically 0.10 μV/V
Low voltage coefficient to ±5 ppm/V
Flame retardant coating. RoHS compliant. Learn More



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Deployment

Stand-alone Capability
PC-connected Only

Data Storage

PC
Internal
USB Flash
SD Card
Cloud

Live Display

PC
On-board Digital
On-board Graphing
None

Channels

4 Channels
8 Channels
10 Channels
16 Channels
20 Channels
32 Channels
Expandable

Interface

USB
Ethernet

Voltage Measurements Supported

±10V
±10mV to ±10V
±200mV to ±10V
±1.25V to ±10V
0V to ±10V
±10mV to ±50V
±10mV to ±60V
±20mV to ±100V
±2V to ±100V
±10mV to ±1000V

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Model Interface Resolution Channels Channel Expansion Max Sample Rate Display Data Storage Measurement
Range
Price
DI-1100 USB 12-bit 4 No 20,000 S/s/Ch PC PC ± 10V $79
DI-2108 USB 12 to 16-bit 4 or 8 No 220,000 S/s Throughput PC PC or USB Flash ± 10V $199.00
DI-4108-U USB 12 to 16-bit 4 or 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 200mV to ± 10V $449.00
DI-4208-U USB 12 to 16-bit 4 or 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 2V to ± 100V $449.00
DI-2108-P USB 16-bit 4 or 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 2.5V to ± 10V; 0-5V, 0-10V $449.00
DI-4108-E USB and Ethernet 12 to 16-bit 4 or 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 200mV to ± 10V $499.00
DI-4208-E USB and Ethernet 12 to 16-bit 4 or 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 2V to ± 100V $499.00
DI-2008 USB 16-bit 8 Up to 128 200 S/s Throughput
2000 S/s with single channel per device
PC PC ± 10mV to ± 50V $599.00
DI-710-UH USB 14-bit 8DI/16SE No 4,800 S/s Throughput PC PC ± 1.25V to ± 10V $499.00
DI-710-UL USB 14-bit 8DI/16SE No 4,800 S/s Throughput PC PC ± 10mV to ± 10V $499.00
DI-710-EH Ethernet 14-bit 8DI/16SE No 4,800 S/s Throughput PC PC ± 1.25V to ± 10V $599.00
DI-710-EL Ethernet 14-bit 8DI/16SE No 4,800 S/s Throughput PC PC ± 10mV to ± 10V $599.00
DI-710-UHS USB 14-bit 8DI/16SE No 14,400 S/s Throughput PC PC or SD Card ± 1.25V to ± 10V $599.00
DI-710-ULS USB 14-bit 8DI/16SE No 14,400 S/s Throughput PC PC or SD Card ± 10mV to ± 10V $599.00
DI-718B-U USB 14-bit 8 No 4,800 S/s Throughput PC PC ± 10mV to ± 60V $595.00
DI-4718B-U USB 12 to 16-bit 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 10mV to ± 60V
DI-8B module dependent
$695
DI-718B-US USB 14-bit 8 No 14,400 S/s Throughput PC PC or SD Card ± 10mV to ± 60V
DI-8B module dependent
$695.00
DI-710-EHS Ethernet 14-bit 8DI/16SE No 14,400 S/s Throughput PC PC or SD Card ± 1.25V to ± 10V $799.00
DI-710-ELS Ethernet 14-bit 8DI/16SE No 14,400 S/s Throughput PC PC or SD Card ± 10mV to ± 10V $799.00
DI-4718B-E USB and Ethernet 12 to 16-bit 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 10mV to ± 60V
DI-8B module dependent
$795
DI-718B-E Ethernet 14-bit 8 No 4,800 S/s Throughput PC PC ± 10mV to ± 60V $795.00
DI-718B-ES Ethernet 14-bit 8 No 14,400 S/s Throughput PC PC or SD Card ± 10mV to ± 60V
DI-8B module dependent
$895.00
DI-808 Ethernet 16-bit 8 No 40 S/s/Ch Browser Internal, USB flash, Cloud TC Types J, K, T, B, R, S, E, N
± 10mV to ± 50V
$995
GL240 USB 16-bit 10 No 100 S/s/Ch Graphing and Digital PC, SD Card, Internal ± 20mV to ± 100V $995.00
DI-718Bx Ethernet 14-bit 16 No 4,800 S/s Throughput PC PC ± 10mV to ± 60V $1395.00
DI-718Bx-S Ethernet 14-bit 16 No 14,400 S/s Throughput PC PC or SD Card ± 10mV to ± 60V
DI-8B module dependent
$1495.00
GL840-M USB and Ethernet 16-bit 20 to 200 Yes 100 S/s/Ch Graphing and Digital PC, SD Card, Internal ± 20mV to ± 100V $2345.00
DI-4730 USB 12 to 16-bit 8 Up to 128 160,000 S/s Throughput per device PC PC or USB Flash ± 10mv to ± 1000V $3695

Videos

Learn how to make 4-20mA current measurements using the R250 shunt resistor.