Yamato GL860 Data Logger, 7" Color Display, Expandable to 200 Channels

The Yamato GL860 is a modular, high-channel-count data logger with a 7-inch color LCD, built for measurement jobs that outgrow a fixed-channel instrument. Its four interchangeable input terminals (20-channel and 30-channel screw and screwless options plus a high-isolation terminal) let a single main unit scale from 20 channels up to a maximum of 200 channels via expansion. Ethernet and USB 2.0 are standard (Wi-Fi optional), and a faster 5 ms sampling floor plus RTD support distinguish it from the smaller GL260.

Key Specifications

Application Profile

The defining trait of the Yamato GL860 is that its channel count is a configuration choice, not a fixed limit. You attach the terminal that fits the job (a 30-channel screwless terminal (B-563SL-30) for dense, fast-wiring installs, or the high-isolation B-565 when channels sit at different potentials) and expand toward 200 channels as a test rig grows. Because RTDs (Pt100/JPt100/Pt1000) join the thermocouple and voltage inputs, the GL860 suits precision temperature work, such as multi-point uniformity mapping of ovens, chambers, and cold storage, where RTD accuracy is preferred over thermocouples.

Speed is the other differentiator: a 5 ms sampling floor, twice as fast as the prior generation, captures transients that a slower logger would average away. Pair that with ~8 GB of internal memory, ring/relay capture for long recordings, and standard Ethernet for networked monitoring, and the GL860 covers both fast event capture and month-long trend logging on one platform. A note when budgeting: input terminals are purchased separately from the main unit, so a working system is the main unit plus at least one terminal.

Frequently Asked Questions

How many channels can the Yamato GL860 handle? 20 channels per terminal, expandable to a maximum of 200 channels using additional terminals and expansion. The main unit itself scales as you add hardware.

Are the input terminals included with the main unit? No. The brochure states terminals are sold separately. A functioning system is the GL860 main unit plus at least one input terminal (B-565, B-563SL-30, B-563SL, or B-563).

Does the GL860 support RTDs? Yes, Pt100, JPt100, and Pt1000 (3-wire) RTDs, in addition to Type K/J/E/T/R/S/B/N/C thermocouples and 20 mV–100 V voltage inputs. (RTDs cannot be connected on the 30-channel screwless terminal.)

What is the fastest sampling rate? 5 ms on a single voltage channel, twice as fast as previous models. The minimum interval widens as channels are added (for example 10 ms across 2 channels, 100 ms across 20).

How does it connect to a PC or network? Standard Ethernet (10/100BASE) and USB 2.0 Hi-Speed, with optional wireless LAN (B-568). GL28-APS and GL-Connection software handle setup, recording, and playback, and G-REMOTE adds cloud remote control.

How is it different from the GL260? The GL860 adds a 7" display, RTD support, a faster 5 ms floor, standard Ethernet, and channel expansion to 200; the GL260 is a fixed 10-channel, 4.3" portable unit.

Ordering & Configuration

GL860 pricing is quote-based and depends on the terminal(s) and options you select. Add it to your quote and we will confirm current price, terminal configuration, and lead time. Calibration (NIST or ISO-17025-860) and accessories such as the B-568 wireless LAN unit can be quoted together.

Warranty: Per Yamato standard terms.

Positioning: The Yamato GL860 is the expandable, high-channel workhorse of the GL family. Choose it for RTD accuracy, 200-channel scale, or fast 5 ms capture. Choose the GL260 when a fixed 10-channel, pocketable logger is enough. Remember to budget at least one input terminal alongside the main unit.