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DI-4730 High-Voltage High-Speed Data Logger

High-Voltage High-Speed Data Logger DI-4730 from DATAQ. 8 High Voltage Isolated Channels, Programmable Gain, Expandable and Stand-alone Capability.


£3,075.00£3,650.00 ex VAT


The DI-4730 High-Voltage High-Speed Data Logger from DATAQ is the next-generation of the popular DI-730 series data logger. This latest model includes the option of channel expansion, and stand-alone capability using a removable USB flash drive (unlock code required).

Product Features

  • 8 Analogue Input Channels
    Measure as many as eight system variables at once with programmable ranges per channel of ±10mV, ±100mV, ±1V, ±10V, ±100V, ±1000V full scale with channel-to-channel and input-to-output isolation. Channel-to-channel isolation protects delicate control circuits, computer equipment, and personnel from high common mode voltages.
  • 12- to 16-bit Measurement Resolution
  • Fully Isolated Inputs
    Analogue inputs are protected to ±1000V input-to-output and channel-to-channel. Digital inputs are protected at 0-25 V dc.
  • Fast 160 kHz Sample Throughput Rate
  • Stand-alone Data Logger Operation
    Store data to removable USB flash drives.
  • Pre/Post Tigger Storage to USB Memory
    Set trigger levels to record up to 2G (combined) of pre- and post-trigger data (total file size of 4G)
  • Auto Re-Trigger
    When using Triggered Storage, triggers can automatically reset, creating a new file with pre and post trigger data each time the trigger level is breached.
  • Comprehensive Published Protocol
    Program in any environment or operating system with our fully documented and comprehensive protocol document. Numerous programming examples are available to help programmers of any level get up and running as quickly as possible.
  • Supports Channel Expansion
    Connect up to 16 DI-4108s , DI-4208s, DI-4718Bs, and/or DI-4730s to one PC. Synchronously acquire up to 128 analogue and 112 digital channels.* 
  • 7 Digital Input Ports
  • Counter Channel
  • Rate Measurement Channel
  • USB, Ethernet, and PoE Interfaces Included
  • Ready-to-run Software Support
    Provided with ready-to-run WinDaq software for point-and-click DAQ performance with a real-time display, disk-streaming recording, and playback and analysis.


* WinDaq/Pro Unlock Code required per device to use ChannelStretch™. Expand measurement capability using a mix of any device in the DI-4000 Series.

Supplied with: a 6-foot USB cable, a 5-foot Ethernet cable, a power supply and adapter, a screwdriver for digital input signal connections, and a USB thumb drive with WinDaq software.

Analogue Inputs
Number of Channels: 8
Configuration: Differential
Full Scale Range: Programmable ±10mV, ±100mV, ±1V, ±10V, ±100V, ±1000V
Isolation: ±1000V input-to-output and channel-to-channel
Max normal mode voltage (VNM): 800VDC or peak AC
Max common mode voltage (VCM): 1000VDC or peak AC
Max Input without Damage: ±1000VDC or Peak AC (±1000V and ±100V Ranges all other ranges with fuse protection)
Common Mode Rejection: 100dB min @ DC to 60Hz
Accuracy: Vin ≤ 800V ±(0.25% of full scale range ±100µV)
Vin > 800V ±(0.5% of full scale range)
Input impedance: 10MΩ for all ranges
Analog frequency response (each ch): ±1000, 100, 10, 1V: -3 db @ 5.0 kHz
±100mV: -3 db @ 4.50 kHz
±10mV: -3 db @ 1.30 kHz
Channel-to-channel crosstalk rejection: -75 dB @100kHz into 100 Ω unbalanced
Analog input connector type: Safety banana socket - 1 pair per ch
ADC Characteristics
Resolution: 12- to 16-bit
Above zero ADC counts: 2,047 to 32,767
Below zero ADC counts: 2,048 to 32,768
Max. throughput sample rate: Standard: 160 kHz
Stand-alone: 20 kHz to 160 kHz (dependent on flash memory)
Min. throughput sample rate: Standard: 20 Hz (2.2 samples per hour with WinDaq)
Stand-alone: 0.0017 Hz
Sample rate timing accuracy: 100ppm
Digital Inputs
Number of ports: 7
Configuration: Inputs
Threshold levels: TTL-compatible
Absolute maximum applied voltage (V): 25 V dc
Reserved Digital Inputs
D0: WinDaq Remove Events
D1: WinDaq Remote start/stop
D2: Rate Input
D3: Count Input
Count/Rate Inputs
Internal pull-up value: 4.7 kΩ
Input high voltage threshold: 2.4 V
Input low voltage threshold: 0.8 V
Terminal count: 65,535
Maximum rate frequency: 50 KHz with one enabled channel
20 KHz with 2-4 enabled channels
10 KHz with 5-7 enabled channels
Minimum rate frequency: 0.5 Hz
Maximum count frequency: 50 kHz
Ethernet Interface
Type: 10/100Base-T
Connector: RJ-45
Protocol: TCP/IP
Server Type: DHCP or Fixed IP
Removable Memory
Type: MLC, pSLC, or SLC flash memory (with USB SD card reader); USB thumb drive
Required Format: FAT32
Indicators and Connections
Front Panel
Analogue Input Connections: 16 insulated banana jacks (2 per channel)
Rear Panel
Button: Multi-function control (Start, Stop, Save Configuration, Apply Configuration)
USB Drive (Type-A): USB drive for stand-alone data logging
Status LED: Single multi-colour LED
USB Connector: USB 2.0 (mini-B style connector) PC communications
Ethernet Port: RJ-45 10/100Base-T; PoE supported
Digital I/O connections: One 16-position screw terminal block
Ground Lug: Connect to Earth Ground
Power Adapter and Switch: 9-36 VDC
ChannelStretch™ Operation
Maximum number of units: 16
Maximum channel count: 128 analog, 112 digital
Channel skew between any 2 units: 10 µS, typical
Maximum supported throughput: ≥480 kHz
Synchronization conditions: Syncs with any combination of DI-4108, DI-4208, DI-4718B, and DI-4730 USB instruments.
All synced instruments must operate at the same sample rate per channel, regardless of channel number, type, or range.
All instruments must be connected to the same USB controller. The use of USB hubs are recommended to meet this requirement.
Maximum number of units: 16
Maximum channel count: 128 analogue, 112 digital
Channel skew between any 2 units: 100 µS, typical
Maximum supported throughput: >50 kHz
Synchronization conditions: Syncs with any combination of DI-4108, DI-4208, DI-4718B, and DI-4730 Ethernet instruments.>br />For most accurate synchronization, all instruments should be connected to the same Ethernet switch.
Power Consumption: 14 Watts
Operating Temperature: 0 to 50 °C
Operating Humidity: 0 to 90% RH non-condensing
Storage Temperature: -20 to 60 °C
Storage Humidity: 0 to 90% non-condensing
Physical Characteristics
Enclosure: Aluminium base with steel wrap-around
Mounting: Desktop; bulkhead
Dimensions: 18.5D × 22.86W × 3.86H cm.
Weight: 1.4 Kg approx.
DI-4730 Specifications DI-4730 Specifications

DI-4730 User Manual DI-4730 User Manual

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