cd-4303

Lutron CD-4303 là đồng hồ dùng để đo độ dẫn điện của nước dải đo hiển thị 4 số, dải đo 0.1 uS to 199.9 uS (Micro Siemens), 0.2 mS to 1.999 mS (Mili=liSiemens), 2 mS to 19.99 mS; đo nhiệt độ 0-60oC.



FEATURES / TÍNH NĂNG

Features:
  • * Microcomputer circuit assures maximum possible accuracy, provides special functions and features.
  • * Super large LCD display with contrast adjustment for best viewing angle.
  • * Dual function meter's display.
  • * Heavy duty & compact housing case, designed for easy carry out & operation.
  • * Records Maximum, Minimum and Average readings with RECALL.
  • * DATA HOLD function for stored the desired value on display.
  • * Auto shut off saves battery life.
  • * The portable conductivity meter provides fast, accurate readings, with digital readability and the convenience of a remote probe separately.
  • * RS 232 PC serial interface.
  • * Multi-measuring ranges: 200 uS, 2 mS, 20 mS.
  • * Innovative feature with built-in automatic temperature compensation values, adjustable between 0 to 5.0% per ℃. Turning the dial to 0% per ℃ allows you to take uncompensated conductivity readings.
  • * Wide automatic temperature compensation range from 0 ℃ to 60 ℃, high accuracy.
  • * Carbon rod electrode for long life.
  • * Show the conductivity & temperature values at the same LCD display.
  • * Temperature function for ℃ or ℉ be selected by push button on front panel easily.
  • * Built-in low battery indicator.
  • * Wide applications: water conditioning, aquariums, beverage, fish hatcheries, food processing, photography, laboratory, paper industry, quality control, school & college, water conditioning.

SPECIFICATION / THÔNG SỐ KỸ THUẬT CƠ BẢN

GENERAL SPECIFICATIONS

Circuit Custom one-chip of micro- processor LSI circuit.
Display * 13 mm(0.5") Super large LCD display with contrast adjustment for best viewing angle.
* Dual function meter's display.
Measurement & ranges 200 uS - 0.1 uS to 199.9 uS.
2 mS - 0.2 mS to 1.999 mS.
20 mS - 2 mS to 19.99 mS Temperature : ℃, ℉.
Sensor Electrode Carbon rod electrode, high reliability.
Data Hold By push button
Memory Recall Records Maximum, Minimum and Average readings with recall.
Power off Auto shut off saves battery life or manual off by push button.
Sampling Time Approx. 0.8 second.
Data Output RS 232 PC serial interface.
Temperature Compensation Automatic adjusting 0 ℃ to 60 ℃ (32 ℉ to 140 ℉).
Over input indication Indication of "- - - -".
Solution Temp. Coefficient Factor Preset to 2.0 % per ℃. Automatic from 0 to 60 ℃ ( 32- 140 ℉), with temperature compensation factor variable between 0 to 5.0% per ℃.
Operating Temperature 0 to 50 ℃ - main instrument.
0 to 60 ℃ - probe only.
Operating Humidity Max. 80% RH.
Power Supply 006P DC 9V battery(heavy duty).
Power Current Approx. DC 7.8 mA.
Weight 350 g/0.77 LB
Dimension Main instrument:
180 x 72 x 32 mm
(7.1 x 2.8 x1.3 inch).
Conductivity probe:
Round, 22 mm Dia. x 120 mm.
Accessories Included Instruction manual............1 PC.
Conductivity electrode....... 1 PC.
Carrying Case................... 1 PC.
Optional Accessories * RS232 cable, UPCB-01
* USB cable, USB-01
* Data Acquisition software, SW-U801-WIN
* 1.413 mS calibration solution, CD-14.

ELECTRICAL SPECIFICATIONS (23± 5 ℃)

Function Range Measuring values Resolution Accuracy
Conductivity 200 uS
2 mS
20 mS
0.1 uS to 199.9 uS.
0.2 mS to 1.999 mS.
2 mS to 19.99 mS
0.1 uS
0.001 mS
0.01 mS
± (2 % F.S. + 1 d)
* F.S. - Full scale
Temperature
0 ℃ to 60 ℃
32 ℉ to 140 ℉
0.1 ℃
0.1 ℉
± 0.8 ℃
± 1.5 ℉