4-20 mA Current Loop Data Logger
4-20 mA current loop data loggers capture sensor and control data that vary current as a function of measured parameters. Measurements from process current loops are popular in many applications for load, pressure, torque and other mechanical parameters. DATAQ Instruments is an expert in data loggers for process current data applications, and offers a wide range of product solutions for any application. 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.
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- 4 differential armored analog channels
- 12-bit measurement resolution
- ±10 V fixed measurement range
- 20-40 kHz sample rate per channel
- Includes WinDaq software
- Includes .NET Class
- Fully documented command protocol
$59
- 8 differential armored analog inputs
- 12-bit measurement resolution
- ±10 V measurement range
- 7 digital I/O ports with rate and count
- 160 kHz sample rate
- Includes WinDaq software
- Includes .Net class
$89
- 4 differential armored analog inputs
- Up to 64 channels (ChannelStretch™)
- 14-bit measurement resolution
- ±2V to ±100V range
- 160 kHz sample throughput rate
- Includes WinDaq ready-to-run software and .NET Class
$178
- 4 differential and isolated channels
- Programmable Voltage or thermocouple type per channel
- ±10mV to ±50V measurement range
- Supports types J, K, T, B, R, S, E, and N
- Fully documented command protocol
$299
- 8 differential analog inputs
- Anti-alias filter per channel
- ±10V measurement range
- Up to 220 kHz throughput
- 16-bit resolution
- 7 Digital Ports with rate and count
- Includes WinDaq/Lite software
$259
- 8 differential analog inputs
- Expandable using ChannelStretch™
- 16-bit measurement resolution
- ±200mV to ±10V measurement range
- 160 kHz analog throughput rate
- Includes WinDaq ready-to-run software
- Includes .Net class
$299
- 8 differential analog inputs
- Expandable using ChannelStretch™
- 16-bit measurement resolution
- ±2 to ±100 V measurement range
- 160 kHz analog throughput rate
- Includes WinDaq ready-to-run software
- Includes .Net class
$299
- 8 differential analog inputs
- Expandable using ChannelStretch™
- 16-bit measurement resolution
- Programmable measurement ranges
- 160 kHz throughput
- 7 Digital Ports with rate and count
- Includes WinDaq/Lite software
$349
- 8 differential and isolated channels
- Voltage or TC type per channel
- Expandable using ChannelStretch™
- 16-bit measurement resolution
- ±10mV to ±50V measurement range
- Rate and count inputs
- Includes WinDaq/Lite software
$499
- 4-20mA measurement range
- Long-life lithium battery-operated
- 9-hours to >2-year record time
- Time and date stamps all data
- Easy export to Excel
- Includes a set of alligator clips
- Ready to go…nothing else to buy
$79.95
- 16 analog inputs
- 4800 Hz max sample rate
- ±1.25 V to ±10 V programmable ranges
- Measure environmental temperature
& humidity with HMP60 probe - Includes WinDaq software
$499
- 16 analog inputs
- 4800 Hz max sample rate
- ±10 mV to ±10 V programmable ranges
- Better than 2 μV resolution on the 10 mV range
- Includes WinDaq software
$499
- 16 analog inputs
- 4800 Hz max sample rate
- ±1.25 to ±10 V programmable ranges
- Measure environmental temperature
& humidity with HMP60 probe - LAN-compatible Ethernet interface
- Includes WinDaq software
$599
- 16 analog inputs
- 4800 Hz max sample rate
- ±10mV to ±10V programmable ranges
- Better than 2 μV resolution on the 10 mV range
- LAN-compatible Ethernet interface
- Includes WinDaq software
$599
- 16 analog inputs
- 14.4 kHz max sample rate
- ±1.25 V to ±10 V programmable ranges
- Records to PC or SD memory
- Measure environmental temperature
& humidity with HMP60 probe
$599
- 16 analog inputs
- 14.4 kHz max sample rate
- ±10 mV to ±10 V programmable ranges
- Records to PC or SD memory
- Better than 2 μV resolution on the 10 mV range
$599
- 8 analog inputs
- 4800 Hz max sample rate
- Uses isolated 8B amplifier modules
- Makes any industrial measurement
- Small form factor fits into tight spaces
- Wide power supply range (9-36 Vdc)
- Includes WinDaq software
$595
- 8 analog inputs
- Up to 14.4 kHz max sample rate
- Any industrial measurement
- Uses isolated 8B amplifier modules
- Records to PC or SD memory
- Small form factor fits into tight spaces
- Includes WinDaq software
$695
- 16 analog inputs
- 14.4 kHz max sample rate
- ±1.25 to ±10 V programmable ranges
- Records to PC or SD memory
- Measure environmental temperature
& humidity with HMP60 probe - Includes WinDaq software
$799
- 16 analog inputs
- 14.4 kHz max sample rate
- ±10mV to ±10V programmable ranges
- Records to PC or SD memory
- Better than 2 μV resolution on the 10 mV range
- Includes WinDaq software
$799
- 8 analog inputs
- 4800 Hz max sample rate
- Any industrial measurement
- Uses isolated 8B amplifier modules
- Small form factor fits into tight spaces
- Wide power supply range (9-36 Vdc)
- Includes WinDaq software
$795
- 8 analog inputs
- 14.4 kHz max sample rate
- Any industrial measurement
- Uses isolated 8B amplifier modules
- Records to PC or SD memory
- Small form factor fits into tight spaces
- Includes WinDaq software
$895
- Works with any smart device
- TC, mV, V, pulse inputs
- Advanced triggering functions
- Alarm outputs with email/text alerts
- Manage, receive and retrieve data from virtually anywhere
$995
- 10 isolated analog/4 counter channels
- Sample intervals from 10ms to 1 hour
- ±20mV to ±100V programmable ranges
- Supports TC measurements
- Record to PC, USB drive, flash
- Measure RH model B-530
$995
- 16 analog inputs
- 4800 Hz max sample rate
- Any industrial measurement
- Uses isolated 8B amplifier modules
- Includes WinDaq software
- Wide power supply range (9-36 Vdc)
- Provided with ActiveX Control set
$1395
- 32 analog inputs
- 200 kHz max sample rate
- Supports 8B industrial amplifier backpack
- ±1.25 to ±10 V programmable ranges
- Includes WinDaq software
- Wide power supply range (9-36 Vdc)
$1395
- 16 analog inputs
- 14.4 kHz max sample rate
- Any industrial measurement
- Uses isolated 8B amplifier modules
- Records to PC or SD memory
- Includes WinDaq software
- Wide power supply range (9-36 Vdc)
$1495
- 32 analog inputs
- 160 kHz max sample rate
- ±1.25 to ±10 V programmable ranges
- Supports 8B industrial amplifier backpack
- Supports distributed synchronized operation
$1590
- 32 ruggedized, differential analog inputs
- Protected to 120 Vrms
- 50 kHz max sample rate
- ±2.5 to ±20 V programmable ranges
- Includes WinDaq software
- Wide power supply range (9-36 V dc)
$1995
- 32 ruggedized analog inputs
- 50 kHz max sample rate
- ±2.5 to ±20 V programmable ranges
- Supports distributed synchronized operation
- Includes WinDaq software
$2185
- 20 isolated analog/4 counter channels
- 60V common mode voltage
- ±20mV to ±100V programmable ranges
- Supports TC measurements
- Record to PC, USB drive, flash
- Measure RH with model B-530
$2450
- 8 isolated wide range channels
- ±10mV to ±1000V programmable ranges
- Supports 8B isolated amplifier backpack
- 150 kHz max sample rate
- Distributed synchronized operation
$3390
- 8 isolated wide range channels
- ±10mV to ±1000V measurement ranges
- Supports 8B industrial amplifier backpack
- 150 kHz max sample rate
- Small, highly portable form factor
$3195
- 32 isolated analog channels
- Any industrial measurement
- 150 kHz max sample rate
- Uses isolated 8B amplifier modules
- Supports distributed synchronized operation
$3995
- 32 isolated analog channels
- Any industrial measurement
- 150 kHz max sample rate
- Uses isolated 5B amplifier modules
- Supports distributed synchronized operation
$3995
- Any industrial measurement
- Sample interval as low as 1µs
- Measure mixed accelerometer, TC, RTD, strain, voltage inputs
- Record to PC, USB drive, flash
- Measure RH with B-530
$2400
- 32 analog inputs
- 8 each discrete inputs and outputs
- 160 kHz sample rate
- ±1.25 to ±10 V programmable ranges
- Supports distributed synchronized operation
$1390
- 32 analog inputs
- 8 each discrete inputs and outputs
- 160 kHz sample rate
- ±0.625 to ±5 V programmable ranges
- Supports distributed synchronized operation
$1390
- 32 analog inputs
- 8 each discrete inputs and outputs
- 200 kHz sample rate
- ±1.25 to ±10 V programmable ranges per channel
- Includes WinDaq software
- Provided with ActiveX Control set
$1195
- 32 analog inputs
- 8 each discrete inputs and outputs
- 200 kHz sample rate
- ±0.625 to ±5 V programmable ranges per channel
- Includes WinDaq software
- Provided with ActiveX Control set
$1195