Data logger family

The Hioki 8420 (eight analog channels), 8421 (16 analog channels) and 8422 (32 analog channels) Memory HiLogger data loggers have universal connectivity providing control and data transfer to PCs, and HTTP server function supporting both control and FTP data transfer protocol.

The instruments can send automatic emails including triggering, alarm, recovery from power failure, or full memory. The loggers are suitable for HVAC monitoring, power and gas supply analyses as well as tasks including building maintenance, production process monitoring, etc.

The 84XX family is suitable for measuring voltages, temperature, humidity and energy (via separate input, totalising pulse-counting channels).

An optional 16 channel, digital I/O module is available that docks with the HiLoggers. The analog channels are fully isolated, permitting transducer monitoring at different potentials with respect to earth at up to 30 V (RMS) or 60 VDC.

The loggers have 8 MB of internal memory providing data storage of up to 4.2 million data points, with a minimum of 100 ms to a maximum of an hour between consecutive data points.

External memory via ATA flash cards with up to 528 MB of storage is available. For data transfer to PCs via ethernet, an optional logger communicator (model 9334) is available.

A large range of triggering scenarios is provided; trigger sources include all analog channels, logic channels and totalising channels. In addition, trigger levels can be combined into logical AND or OR conditions.

Trigger types can be chosen when rising or falling past a preset value, within window or exceeding upper or lower limits. Trigger conditions can indicate start or stop acquisition process, or external triggering can be chosen by the operator.