Platinous J series
ESPEC's temperature and humidity chambers and low-temperature (humidity) chambers. It was the first Japanese environmental test equipment maker to adopt the low-GWP refrigerant R-449A.
Maker: ESPEC · Official product page
Specifications
| Test method | Constant temperature and humidity (temperature and humidity control) |
|---|---|
| Series | PR-J (temperature and humidity) / PL-J (low temperature) / PSL-J (ultra-low temperature −70 °C) / PHP-J (high temperature, high humidity) |
| Key feature | Main and auxiliary 2 refrigeration circuits for power-saving operation when stable |
| Main applications | Temperature and humidity testing of electronic components and semiconductors |
Specifications as published by the maker. See the sources below.
Overview
The Platinous J series are ESPEC's temperature and humidity chambers. There are 6 models in all, temperature and temperature-humidity types covering -40 to +100 °C, and models such as PR, PL, PSL, PHP, PDR, PDL and PCR differ in their temperature and humidity control ranges.
The Smart R&D system for refrigeration and dehumidification carries multiple compressors to reduce power consumption. ECO types (such as PL-4J-ECO) cut power consumption by up to 70% compared with the J series. The low global warming potential refrigerant R-449A (GWP 1397) is standard.
Temperature and humidity chambers are basic test equipment used to evaluate the performance of electronic components and semiconductor packages in temperature and humidity environments and for long-term storage tests. ESPEC lists applications such as charge-discharge tests, performance evaluation tests, long-term storage tests and charge-discharge safety tests of batteries (cells, modules and packs).
Key features
- -40 to +100 °C, 6 temperature and temperature-humidity models
- Smart R&D system (multiple compressors)
- Up to 70% lower power consumption with ECO types
- Low-GWP refrigerant R-449A as standard
Applications
- Temperature and humidity tests and long-term storage tests of electronic components
- Charge-discharge and performance tests of batteries
Other temperature and humidity test chambers
- HIFLEX SC (SIMPLICORE) · Kusumoto Chemicals (ETAC)
More from ESPEC
- EHS series HAST chambers (standard type) · Accelerated life test (HAST) equipment
- RBC series burn-in chambers · Burn-in systems
- TSA series thermal shock chambers · Thermal shock test chambers
Sources
Last updated: October 23, 2026