Lutron Electronics PCD-431 Operation Manual
Pen type, all in one, IP-67
CONDUCTIVITY METER
Model : PCD-431
Your purchase of this
CONDUCTIVITY METE
R
marks a step forward for
you into the field of
precision measurement.
Althou
g
h this METER is a
complex and delicate
instrument, its durable
structure will allow many
years of use if proper
operatin
g
techniques are
developed. Please read
the followin
g
instructions
carefully and always keep
this manual within easy
reach.
OPERATION MANUAL
TABLE OF CONTENTS
1. FEATURES.................................................................1
2. SPECIFICATIONS......................................................
.
2
3. FRONT PANEL DESCRIPTIONS................................... 5
3-1 Battery compartment/Cover.................................
.
5
3-2 Display................................................................5
3-3 Power Button......................................................
.
5
3-4 Hold Button, Unit Button......................................
.
5
3-5 REC Button ( / Button ).................................℃℉ 5
3-6 Sensing Electrode........................................... 5
3-7 Protection Cover.................................................. 5
4.MEASURING PROCEDURE..........................................
.
6
4-1 Conductivity measurement...................................
.
6
4-2 TDS measurement............................................... 7
4-3 Data hold............................................................
.
8
4-4 Data record ( Max., Min. reading )........................
.
8
4-5 Change Temp. unit , .....................................℃℉ 9
4-6 Auto power off management................................
.
9
5.CALIBRATION.......................................................... 9
6. REPLACEMENT OF BATTERY.................................... 10
7. OPTIONAL ACCESSORIES..........................................
.
10
1. FEATURES
* All in one pen type conductivity meter provides fast,
accurate readings with digital reading.
* Conductivity measurement ( uS, mS ) or TDS
( Total Dissolved Solids, ppm ) can be selected.
* Conductivity : Two ranges, 2,000 uS, 20.00 mS.
* TDS : Two ranges, 20,000 ppm, 2,000 ppm.
* Carbon rod electrode for long life.
* Build in temperature sensor, ATC ( auto temperature
compensation ).
* Temperature measurement, , .℃℉
* IP67, water proof and protection.
* LCD with two displays show conductivity and Temp.
value at same time.
* Data hold function for freezing the desired value.
* Auto power off to save the battery life.
* Records max. and min. value with recall.
* Microcomputer circuit, intelligent function, high accuracy.
* Compact size, light weight.
* Power supply by DC 1.5 V battery ( UM4/AAA ) x 4 PCs,
* Available for wide applications, such as aquarium,
beverage, fish hatcheries, food processing,
photography, laboratory, quality control, school &
colleges, swimming pools, water conditions.
1
2. SPECIFICATIONS
Display LCD, size : 20 mm x 28 mm.
Measurement * Conductivity ( uS, mS )
* TDS ( Total Dissolved Solids, ppm )
* Temperature ( , )℃℉
Ranges
Conductivity:
* two ranges
2000 uS, 20.00 mS
* auto range TDS :
2,000 ppm 20,000 ppm
Accuracy ± ( 2% FS + 1 d )
* 23 ± 5 ℃
* FS : full scale
Temperature Automatic from 0 to 60 (32 - 140 ),℃℉
Compensation with temperature compensation factor
variable between 0 to 5.0% per C.
Conductivity Carbon rod electrode for long life.
Probe
Structure
Data Hold Freeze the display reading.
Memory Recall Maximum & Minimum value.
Sampling Approx. 0.8 second.
Time
Circuit Custom one-chip of microprocessor LSI
circuit.
Power off Auto shut off saves battery life or
manual off by push button.
* Power will off automatically after
10 min., if no button be pressed.
Operating 0 to 50 ( 32 to 140 ).℃℉
Temperature
Operating Less than 80% RH.
Humidity
2
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