The core products of ALEC Electronics Co., Ltd., COMPACT series,
will be thoroughly remodeled in this spring. In 2000, we launched the
COMPACT series such as the EM-type current meter and CT
instrument. Since then almost 8 years have passed. As being a
memory medium used in COMPACT series products, the flash memory
is adopted and controlled by built-in PIC. The greatest reputation has
been given to Compact instruments both from Japan and abroad,
because of their high stability, light weight, compact and robust design,
easy handling and low price. Now, almost all the Compact instruments
have been sold with exceeding 5,000 units in entire 15 models. We
would appreciate the users' patronages to the COMPACT series
products.
Once COMPACT series-products were put into market, we started
to make this series advanced for easier handling and more convenient
to users. For this goal, we have worked very hard to develop the
next-generation logger-type instruments applying the state-of-art
technology.
Herewith we would like to announce that the next-generation
logger-type instruments have been completed based on the valuable
feedbacks from many field researchers and our extremely advanced
technology. The newly-developed logger-type instruments are named
as INFINITY with the unlimited potentiality. The design logo
was adopted and multiplied by "Mobius strip" widely used as the
unlimited image by INFINITY.
The "COMPACT series" instruments will be replaced with the "INFINITY
series". First of all, turbidity meter, EM current and CT meters will be
on line in sequence from April until the end of this year. We introduce
the INFINITY models that have already been examined in field test.
 
OVERVIEW & FEATURES OF INFINITY

INFINITY 		-Easy-handling & high-speed data transfer
The INFINITY series is a USB logger-type instrument controlled by high-performance 16-bit MCU. A Mini-SD card is provided as a memory medium. Since the flash memory was fixed on PCB of the COMPACT series, the PC must be connected to run measurement setup and data transfer through the relative software. And, due to slow transfer speed by the RS232-C applied to the COMPACT series, many improvements were demanded from the researchers.
The INFINITY series has the better features to solve those problems entirely. The measurement setup can be done either directly from the PC through USB access or executed by editing file in the Mini-SD card. Moreover, due to using USB and Mini-SD card, the transfer speed is extremely improved. As a result, it permits speedy, safety and easy handling regardless of any kinds of field environments.

-Large memory capacity
For the INFINITY series, the Mini-SD card of 512Mbyte is supplied as standard and it can be increased up to maximum
2Gbyte, based on the measurement needs from clients. The standard type of 512Mbyte Mini-SD card can store up to maximum 50 millions words that converted in 16bits, and thus, about 7 millions data sets can be saved with 7-ch instrument (However, the measurement time is also determined by the battery capacity and consumable current, which depends on the model type). Moreover, multi-files corresponding to each measurement can be saved on the card. The data files in the mini-SD card are readable in Windows OS. It is possible to read the data by the card slot built in the PC and available card reader/writer, and thus, the file management is fast obviously.


-Operational verification feature
As the COMPACT series does not provide any function to know if the measurement starts normally as per the setup, the researcher sometimes worries about the measurement. The "Measurement verification function" is equipped in the INFINITY series with a buzzer sounding at the beginning of measurement.

-Battery pack
The lithium battery pack (CR-V3) for camera is used instead of the conventional lithium battery. This battery pack is locally available at some camera shops and supermarkets. Although the maximum quantity of battery equipped totally is depending on the model type (2 or 4 pcs), it is designed to be able to work only by 1 piece of battery. This makes measurement more economic based on measurement
condition.

-User-friendly software
The data acquisition software of the INFINITY series is based on the comments from the field researchers and designed with the user-friendly architecture. For instance, the setup of measurement interval is ranged from 0.1 sec till 6,000 sec. and the precise measurement can be planned.

 
LINE-UP

-An improved EM-type sensor with lower 0-point drift and applying inclination.
INFINITY-EM Specifications

-Wide turbidity ranges by using 2ch. turbidity sensors corresponding to medium/high concentration.
-Provided with water temperature and depth sensors as standard.

INFINITY-Turbi Specifications

-Newly developed 7-electrode type conductivity sensor.
-Depth rating 2,000m.

INFINITY-CT Specifications

-Continuous measurement for 30 days at 20 minute interval per an hour.
-Water temperature sensor (option).

INFINITY-WH Specifications

INFINITY series General spec.

Infinity CLW is a small sized autonomous active Chlorophyll-Turbidity data logger for long term deployment with wiper function. The instrument irradiates a light with a peak wavelength of 470 nm and a light of 880 nm and detects by filtered photodiode chlorophyll fluorescence and backscattering.
Infinity-series instruments carry a SD-card as an internal recorder which can be replaced with a larger one from standard equipment of 1GB depending on your sampling schemes and deployment period. 1GB SD-card has a memory capacity of 17 million data approximately while deployment period is limited by battery life as well.
You can make a deployment plan over USB cable connected to the instrument or onto the SD-card separately so that you can handle it easily in harsh environment.
Infinity-series instrument adopts CR-V3 lithium battery as power source. You should easily get it in a camera shop or a home appliance retailer store.