Bante904P Portable Conductivity/DO Meter
24
Temperature
Range
0~105° C, 32~221° F
Accuracy
± 0.5° C
Resolution
0.1° C
Calibration Points
1 point
General
Memory
Stores up to 500 data sets
Output
USB communication interface
Connector
6-pin
Display
LCD
Operating Temperature
0~60° C
Relative Humidity
< 80%
Power Requirements
3 ×
1.5V “AA” batteries
Dimensions
170 (L) × 85 (W) × 30 (H)mm
Weight
300g
Addendum 1: Preparation of Conductivity Standard Solutions
Place AR potassium chloride reagent in a 50ml beaker and dry in an oven for 3 to 5 hours at 105° C, then cool to room temperature in desiccator.
CALIBRATION SOLUTIONS
REAGENT
84µ S/cm
Accurately weigh out 42.35mg of KCL and dissolve in 1 litre deionised water.
1413µ S/cm
Accurately weigh out 745.9mg of KCL and dissolve in 1 litre deionised water.
12.88mS/cm
Accurately weigh out 7.45g of KCL and dissolve in 1 litre deionised water.
111.8mS/cm
Accurately weigh out 74.5g of KCL and dissolve in 1 litre deionised water.
Stir the solution until the reagent has thoroughly mixed. Preparation is completed.
Addendum 2: How to calculate the temperature coefficient
To determine the temperature coefficient of sample solution use the formula below:
T
c
= × 100%
Where:
T
C
= Temperature coefficient
C
TA
= Conductivity at Temperature A
C
TB
= Conductivity at Temperature B
T
A
= Temperature A
T
B
= Temperature B
C
TB
-C
TA
C
TA
(T
B
-25)-C
TB
(T
A
-25)
