600-channel Data Logger with 10ms Sampling

SKU: 8423 Category:


Hioki Memory HiLoggers are high-speed data loggers for recording multiple chanels of voltage, temperature, resistance, humidity, rotation, and pulse signals, providing complete isolation within channel sets. The 8423 with optional input modules log data at 10ms speeds across up to 600 simultaneously, and is configurable and controllable using a PC.

Key Features

• Capture data with 15 to a maximum of 600 channels
• Send data to the PC in real time
• Isolated to sustain up to 600 V between modules and earth
• USB 2.0, LAN 100BASE-TX, store to 1GB PC Card
• Simultaneous fast- and low-speed sampling allows for media storage space efficiency



Introducing a multichannel logger that can be expanded to accommodate various applications

The 8423 can be expanded with up to eight input modules. Four different types of module can be mixed and matched to accommodate specific applications.

Adding an input module is easy thanks to one-touch installation. And since the 8423 can be mounted on industry-standard DIN rails, it’s ideal for use in embedded and rack-mounted applications.



Introducing a multichannel logger that can measure up to 40 modules (600 channels)

A single 8423 can be expanded with up to eight input modules (for a total of 120 channels).
Those eight modules constitute one system, and the product can be expanded to include up to five systems (providing the ability to measure 600 channels).

What’s more, data can be collected from all 600 channels in as little as 10 msec, making the 8423 ideal for use in measurement applications that involve rapid fluctuations in load, for example hybrid vehicles.



All-Channel Synchronous Measurement Capability

When measuring up to 120 channels on combined modules, all input channels are sampled synchronously. When multiple 8423s are connected via LAN or USB for measuring up to 600 channels, the sampling of each instrument in the system can be synchronized using optional Connection Cable Model 9683.

As well as PC-based data collection, measurement start and stop can be controlled by the [START/MARK] and [STOP] keys on a master 8423.

Note: Any 8423 may be designated as the master.
Only the initial acquisition criteria setting needs to be performed on a PC via USB or LAN.



Isolated to sustain up to 600 V between modules and earth

With all channels isolated and a 600V AC/DC maximum rated voltage to earth, even when the common mode voltage increases as is common with layered batteries, the voltage of each individual battery cell can be safely measured.



Included PC application with measurement and analysis functionality

The supplied Logger Utility software enables processing of measurement data on a PC.

Use the supplied Logger Utility software to record data on a PC in real-time. View past data during recording.

Connect the PC to the HiLOGGER using USB or via LAN.



Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)

No. of connectable units Maximum 8 units (total 120 channels), Bundle 8 modules together to achieve a 120-channel system, Bundle 5 systems together to enable a maximum of 600 channels of simultaneous recording
Measurement parameters Model 8948 [No. of channels] 15 analog channels, isolated scanning method input (2 terminals: M3 screw type)
[Voltage measurement range] ±150 mV to ±100 V, 1-5V, Max. resolution 5 µV, Max. allowable input: 100 VDC, between channels: 200 VDC, to earth: 600 VAC/DC
[Temperature range] -200˚C to 2000˚C (depend on the sensor), thermocouples (K, J, E, T, N, R, S, B, W), Max. resolution 0.01˚C
Measurement parameters Model 8949 [No. of channels] 15 analog channels, isolated scanning method input (4 terminals: push-button type) (not isolated between channels at resistance temperature sensor & humidity sensor)
[Voltage measurement range] ±150 mV to ±60 V, 1-5V, Max. resolution 5 µV, Max. allowable input: 60 VDC, between channels: 120 VDC, to earth: 600 VAC/DC
[Temperature range] -200˚C to 2000˚C (depend on the sensor), thermocouples (K, J, E, T, N, R, S, B, W), Max. resolution 0.01˚C
[Resistance temperature sensor range] -200˚C to 800˚C, (Pt 100, JPt 100), Max. resolution 0.01˚C
[Humidity] 5.0 to 95.0% rh, (use with optional sensor), resolution 0.1% rh
Measurement parameters Model 8996 [No. of channels] 15 channels, digital/pulse input (2 terminals: M3 screw type, CH1-5, CH6-10, CH11-15 are common GND, No-voltage ‘a’ contact, open collector or voltage input)
[Totalized pulses] 0 to 1000M pulse, Max. resolution 1 pulse
[Rotation count] 0 to 5000/n (r/s), Resolution 1/n (r/s) *n = pulses per rotation (1 to 1,000)
[Digital input] Record ON/OFF digital signal per interval
[Max. allowable input] 50 VDC, between channels: 33 VACrms or 70 VDC, to earth: 600 VAC/DC, (Upper limit voltage that does not cause damage when applied between CH1-5, CH6-10, CH11-15 each channel and chassis, and between each UNITs)
Recording intervals 10 ms to 1 hr, 19 ranges (5s to 1hr when combined with humidity measurement), Dual sampling: Recording intervals can be specified for every input module (high-speed and low-speed)
Function Measurement data are saved to the CF Card in real time, Trigger function, Digital filter (Input unit), Alarm output (use with the Alarm unit 8997), Data acquisition is controlled by the PC data acquisition program, FTP server function, HTTP server function
Interface LAN: supports 100Base-TX, USB: Ver 2.0, mini-B receptacle, CF card slot
Power supply Using the AC adapter 9418-15 (100 to 240 V, 50/60 Hz), 55 VA Max. (include AC adapter), 20 VA Max. (main unit only) (when connected with 8 units),
External DC Power: 9.6 V to 15.6 VDC, 20 VA Max. (when connected with 8 units) (Please contact HIOKI for connection cord)
Dimensions and mass 67 mm (2.64 in) W × 133 mm (5.24 in) H × 125 mm (4.92 in) D, 600 g (21.2 oz) (main unit 8423 only)
Accessories Quick start manual × 1, Instruction manual × 1, AC adapter 9418-15 × 1, USB cable × 1, CD-R (data collection software “Logger Utility”) × 1, Connector cover × 1, Ferrite clamp × 1, Connection plate × 1

Combination status with LabVIEW or MATLAB script

Compatible models LabVIEW MATLAB script
8423 OK N/A



Declaration of Conformity



For the PC

*LOGGER UTILITY is a bundled software



• For the HIOKI Memory HiLoggers • The control of the measurement of loggers, real-time data collection • Wavefrorm display, data conversion, calculation, search, print

Input cable (E)

*Voltage to ground is within this product's specifications. Separate power source is also required.


AC ADAPTER 9418-15

100 to 240V AC

Input options



1-channel, for Universal unit 8949

Input/output modules










Other options



For synchronization, cable length 1.5 m (4.92 ft)

PC Software



Straight Ethernet cable, supplied with straight to cross conversion adapter, 5 m (16.41 ft) length

Storage media

*The CF card includes a PC card adapter. PC Card Precaution Use only PC Cards sold by HIOKI. Compatibility and performance are not guaranteed for PC cards made by other manufacturers. You may be unable to read from or save data to such cards.


PC CARD 512M 9728

• 512 MB capacity • PC card adapter bundled

PC CARD 1G 9729

• 1 GB capacity • PC card adapter bundled

Logging Measurements using a Wireless Local Area Network 

Drivers, Firmware, Software

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