Choosing a data acquisition recorder often starts with how your data will be used: do you need live transfer to a computer, or a physical record you can file? The Eurotherm Nanodac and the CHINO AH4000 take different routes. One is a recorder/controller that stores data digitally; the other is a hybrid that combines chart output with digital storage. With about $965 between their listed prices, the decision is as much about workflow as budget.
Quick verdict
If your priority is a lower listed price and flexible data handling, the Eurotherm Nanodac (listed at $416.04) pairs logging with control in a single unit. If your priority is multi-channel chart output, the CHINO AH4000 (listed at $1,380.82) pairs chart output with SD storage.
Comparison
| Feature | Eurotherm Nanodac | CHINO AH4000 |
|---|---|---|
| Listed price | $416.04 | $1,380.82 |
| Recording style | Paperless color display | Strip chart paper |
| Data transfer | Ethernet and USB host | SD card slot |
| Inputs/outputs | Multiple analog inputs and relay outputs | 24 channels |
| Setup | Process controller functions | Front keypad for Zero/Span |
Where each product wins
The Eurotherm Nanodac wins when you want one unit that can monitor inputs and use that data for control. Its listed price also makes it the lower-cost option in this pairing.
The CHINO AH4000 wins when you need a recorder built for heat-treatment temperature monitoring with multiple inputs, where high-speed plotting and automatic pen leveling add value.
Eurotherm Nanodac Invensys Recorder Process Controller Data Logger Ethernet USB
Made in the United Kingdom and sold as used, this Eurotherm Nanodac is a genuine paperless recorder and process controller. The color display replaces traditional chart output, and the Ethernet and USB host ports make it easy to get logged data onto a computer. Multiple universal analog inputs plus relay outputs let the unit both read process signals and act on them, which is useful when you need control in the same box. The photos show the exact unit, and the used condition means light scratches and minor bezel wear are to be expected. Its limitation is the lack of a physical chart trace; if your application demands a chart record for inspection, the CHINO is the better match. Anyone comfortable with pre-owned industrial gear will find this a capable, connected recorder.
CHINO AH4000 Series Hybrid Strip Chart Recorder
This is a seller-refurbished CHINO AH4000 series recorder made in Japan. It is a hybrid recorder: it draws on a strip chart while also saving data to an SD card, so you get both a paper trace and a portable digital copy. The 24-channel input capacity makes it well suited to multi-point temperature monitoring during pre-heat and post-weld heat treatment. The front keypad allows direct setup of Zero and Span, and high-speed plotting with automatic pen leveling helps keep the chart clean during long sessions. The limitation is that this recorder is refurbished, and the paper-based workflow is only valuable if you actually need a physical record. If your process relies on chart reviews or inspection paperwork, the CHINO AH4000 is the specialized choice.
Final choice by use case
Choose the Eurotherm Nanodac if you want connected logging from a compact recorder and you are comfortable buying used equipment with cosmetic wear.
Choose the CHINO AH4000 if your application centers on heat-treatment monitoring with multiple temperature inputs and you want a dedicated chart recorder.
