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
| Analog channels | 20 per terminal, expandable to a maximum of 200 ch (terminals sold separately) |
| Terminal options | B-565 (20 ch high-isolation), B-563SL-30 (30 ch screwless), B-563SL (20 ch screwless), B-563 (20 ch screw) |
| Input types | Thermocouple K/J/E/T/R/S/B/N/C; RTD Pt100/JPt100/Pt1000 (3-wire); voltage 20 mV–100 V; humidity 0–100% (optional B-530) |
| Sampling interval | 5 ms–1 h (5–50 ms voltage only, limited channels) |
| A/D converter | ΔΣ type, 16-bit (effective resolution 1/40,000 of ± range) |
| Display | 7" TFT color LCD, WVGA 800 × 480 dots |
| Storage | ~8 GB built-in memory + SD card slot (SDHC to ~32 GB); GBD / CSV |
| PC interface | Ethernet (10/100BASE), USB 2.0 Hi-Speed; wireless LAN optional (B-568) |
| External I/O | 4 logic/pulse inputs, 1 external sample/trigger input, 4 alarm outputs |
| Power | AC adapter 100–240 V / 50–60 Hz; DC 8.5–24 V (B-514) or up to 2 battery packs (B-573) optional; ≤38 VA |
| Operating environment | 0–45 °C, 5–85% RH (incl. terminals) |
| List price | Contact for pricing |
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.
