DLI-600: ePAR, Daylight Integrator and Photoperiodic Meter (ePAR, 400-750 nm) Summary:

User's Manual

DLI-600 spectrometer It is a new product in 2022. It is an elegant and easy to use device for spot checking photosynthetically active radiation (PAR) beyond the traditional range of 400 – 700 nm. DLI-600 measures the newly defined 400-750 nm ePAR radiation range, which has been proved to have extended photosynthetic activity characteristics. In addition to measuring ePAR, the DLI-600 meter also calculates Daylight Integration (DLI) and Photoperiod. EPAR, DLI and photoperiod affect plant growth and development. They are usually measured in greenhouses and growth chambers to help with light management and decision-making.

Accurate and stable measurement:Apogee research level quantum sensors have an accuracy drift rate of less than 2% per year, and all sensors are NIST traceable.

Measurement mode: This sturdy, waterproof and compact instrument is very suitable for single (spot check area) or continuous measurement of PPFD or ePPFD; DLI； And photoperiod. The DLI-600 instrument has two different screen modes to display measured values: storing data and viewing data in real time. In the Stored Data screen, it displays the DLI measurement, the optical period, and the date the data was collected (up to 99 days ago). The Live View Data screen displays the average ePPFD run in the last 2.5 seconds. Measuring and controlling DLI and the light time (photoperiod) received by plants is essential for optimizing plant health, triggering flowering and inducing other plant morphological effects. EPPFD, DLI and photoperiod data can be viewed on the screen or downloaded via USB-C data lines for analysis.

Rugged and ready to use: The DLI-600 is sturdy and durable, with the protection level of IP65, and can withstand harsh and humid environments. It can be carried around for spot check, placed directly on any horizontal surface, or connected to the commonly used camera tripod, fixture, or the standard used at the bottom ¼- 20 threaded ports. The DLI instrument consists of a cast acrylic diffuser (filter), an optical filter, a photodiode, a signal processing circuit, and an LCD display mounted in the ASA plastic housing. Each DLI package includes the instrument, a protective suitcase, two AAA batteries, a quick start guide, a screwdriver, a soil nail for easy installation, and a USB-C cable for downloading the data stored in the instrument to the computer as a CSV file.

DLI-600 spectrometer drawing:

DLI-600 spectrometer specifications: