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High Accuracy Direct-to-Sensor USB Data Acquisition System


Item# INET-600

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Quantity Price each
1-4 $661.85
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25-49 $589.05
50-99 $575.81
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High Accuracy Direct-to-Sensor USB Data Acquisition System INET-600 INET-600
  • Connects a Computer to Sensors and Controls via Analog and Digital Inputs and Digital Outputs Via Windows® Software
  • iNET-601 Provides ±36V Input Bank to USB Electrical Isolation
  • iNET-600 Connects I/O Signal Ground to Computer Ground Receives Power from USB Bus
  • 16SE/8DI Voltage Input Channels with Extremely Accurate 24-Bit A/D Converter that Supports ±20 mV to ±10V Ranges 4 Digital I/O (4 mA Sink/Source, 0 to 3.3V)

INET-600 Model Options

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Additional Features
Input Type
Number of Inputs
Minimum Number of Analog Inputs
Maximum Analog Input Sample Rate (per second)
Analog Input Resolution (single-ended, bits)
Input Range
Digital I/O
Number of Digital I/O
Interface Protocol
Analog Input Type
Analog Input Class
Number of Analog Inputs
Maximum Sample Rate (per sec)
Analog Input Resolution

 The iNET-600 Series A/D module provides 16SE/8DI voltage input channels (Ch#1...#16), each of which are independently software programmable with Windows software that support the direct connection to many common sensor types. Voltage input range on each channel is independently software programmable to one of: ±20 mV, ±40 mV, ±80 mV, ±150 mV, ±300 mV, ±600 mV, ±1.2V, ±2.5V, ±5V, ±10V. Included is a mating Hd44 Female Connector and Cover. Alternatively, one can attach iNET-600 Series to the following optional wiring boxes: iNET-500, iNET-511, iNET-512. If one is working with thermocouples, an iNET-510 wiring box is required due to its internal cold junction compensation.

iNET-600 Series is a stand-alone USB data acquisition system. No additional components, such as external power supply, are required. Included in the box: iNET-600 Series Hardware Device, USB Cable, Software on CD, Mating Hd44 Female Connector and Hd44 Cover. Digitize at a maximum sample rate of 160K sample/sec for 1 channel, 16Ks/sec/ch for 2 channels, 8Ks/ sec/ch for 4 channels, and 4Ks/sec/ch for 8 channels. Maximum sample rate is for ±5V input signal. For accuracy and sample rate details on all supported input signals, see the tables at the end of the spec sheet.

Each channel provides the following software programmable parameters: A/D Signal-Averaging-Per-Point (0 ... 100 mSec), Sample-Rate (samples-per-second-per-channel), Digital IIR Filter (Low Pass, High Pass, Band Pass, or Band Stop), Voltage Measurement Range (±20 mV to ±10V), Sensor Type, and Single-Ended or Differential Wiring.

Excitation power (+3.3V ±0.2V, <80 mA, 28 mA per sensor max) is provided for sensors, along with other End User Power voltages. This 3.3V, which is referenced to instruNet Ground, is automatically read back by A/D when calculating sensor values.

The 4 mA sink/source digital I/O port consists of 4 individual TTLcompatible lines (Ch#25...#28), each of which can be configured as: input or output bit. When configured as an input, a channel can be used to sense a digital high (2 to 5.5V) or digital low (0V to 0.8V). When configured as an output, a channel can be set high (e.g. >2V) or low (e.g. <0.8V). These I/O pins are short-circuit protected against high voltages up to 6.0V and down to -6.0V.

Easily Set Up Sensors
One can easily set up sensors with the Quick Setup dialog box.

Optional Wiring Boxes
iNET-510, iNET-511, iNET-512 wiring boxes easily bolt to iNET-600 Series devices. The iNET-510 is the simplest, is the lowest cost, and supports thermocouples. The iNET-511 includes 8 BNC connectors. The iNET-512 has a vRef/2 source that is used to help complete ¼ bridge and ½ bridge strain gage circuits. If you are measuring thermocouples, then the iNET-510 is the only wiring box that will work, since it contains an internal temperature sensor that measures the temperature of the iNET-510 screw terminals.

Model No.BNC connectorsThermocouple support1/4 and 1/2 bridge strain gage vRef/2 supportIndividual banks of screw terminals for each sensor

iNET-510 wiring box with screw terminals

iNET-511 wiring box with BNC connectors

iNET-512 Strain gage/sensor wiring box with screw terminals


Number of Channels: 16 single-ended (SE)/8 differential (DI)
A/D Converter: 24-bit when averaging each point for >1m sec; and 16 bits when not averaging
Voltage: See voltage accuracy/range charts
Voltage Ranges: ±20 mV, ±40 mV, ±80 mV, ±150 mV, ±300 ­mV, ±600 mV, ±1.2V, ±2.5V, ±5V, ±10V
Electrical Isolation (iNET-601 Only): ±36 Vdc bank isolation
Protected Voltage: ±30 Vdc with power on or off
RFI Filter: 13 KHz RFI filter on <±150 mV range
Digital Filter: Low Pass, High Pass, Band Pass, or Band Stop
Digital Filter Type: Elliptic, Chebyshev B, Chebyshev S, or Butterworth
Common Mode Voltage: ±10 Vdc
Common Mode Rejection Ratio: >110dB (0 to 60 Hz)
Input Impedance: 100 MΩ

Thermocouple: J, K, T, E, R, S, B, N, C, G, D
Thermistor: 2252 Ω (OMEGA 44000 Series), custom
RTD: 100 Ω, 500 Ω, 1 kΩ platinum
Load Cell: 10 kg, 25 kg, 100 kg, 250 kg, 1000 kg, 5000 kg, custom
Strain: 120 Ω or 350 Ω. 1⁄4 bridge, half bridge or full bridge; internal i60x voltage reference supports a maximum of three 120 Ω bridges; and eight 350 Ω bridges
Potentiometer: 1 to 50 kΩ
Current: ±80 uA, ±120 uA, ±500 uA, ±600 uA, ±800 uA, ±1.2 mA, ±2.5 mA, ±12 mA, ±24 mA, 0 to 24 mA, custom
Resistance: 0 to 33 Ω, 0 to 100 Ω, 0 to 330 Ω, 0 to 1 kΩ, 0 to 3300 Ω, 0 to 10 kΩ, custom
LVDT/Flow/Pressure: Current, voltage, mV/V

Number of Channels: 4 digital I/O (4 mA sink/source, 0 to 3.3V)
“0” Input Voltage: 0 to 0.8 Vdc
“1” Input Voltage: 2 to 5.5 Vdc
“1” Input Current: Amps = Vin / 50 kΩ (“1” must drive internal 50 kΩ pulldown resistor)
“0” Output Voltage: <0.7 Vdc at <2 mA; < 0.9 Vdc at 4 mA
“1” Output Voltage: 2.2 to 3.3 Vdc at 4 mA
Pull-Down Resistor: 50 kΩ ±1%

Operating Environment: 1 to 70°C (34 to 158°F), <90% RH, no condensation
Storage Temperature: -20 to 70°C (-4 to 158°F)

Power Consumed From USB Cable: +5 Vdc 255 mA typical (433 mA max)
Voltage Reference At Hd44 Connector: 3.30 Vdc (80 mA)
Unregulated Power Available to User At Hd44 Connector: 5 Vdc (8 mA), ±15 Vdc (4 mA)

Material: Plastic enclosure
Dimensions: 58 x 96 x 24 mm (H x W x D)
Weight: 454 g
Mounting: Place on desktop, attach to wall, or place inside another enclosure (OEM)

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Rated 2 out of 5 by from Nice however noisy data. 4 errors out of 300,000. Noisy DAQ. Records erroneous data points at 1 KHZ sample rate.
Date published: 2021-09-08
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Hi, If I was to use iNet-600 Data Acquisition System for K-type thermocouples (10 or less), then how to connect the device with a thermocouple. I think that the devise can be connected with computer using USB provided.

Asked by: Varinder
We will require more information to help on this question, please email the DAS team at DAS@OMEGA.COM
Answered by: Application Engineer PV
Date published: 2021-07-26

Does this have channel to channel isolation?

Asked by: testerteam
Thank you for your question. We will require more information to help on this question, please email the DAS team at DAS@OMEGA.COM.
Answered by: Application Engineer PV
Date published: 2022-06-23
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