Hanna Instruments c 99 Manuel D’Utilisation

120

pH

SPECIFICATIONS

Range

6.5 to 8.5 pH

Resolution

0.1 pH

Accuracy

±0.1 pH

Typical EMC

±0.1 pH

Deviation

Light Source

Tungsten lamp with narrow band interference

filter @ 525 nm

Method

Adaptation of the Phenol Red method. The reaction

with the reagent causes a yellow to red tint in

the sample.

REQUIRED REAGENTS

Code

Description

Quantity

HI 93710-0

Phenol Red Indicator

5 drops

REAGENT SETS

HI 93710-01 Reagents for 100 pH tests
HI 93710-03 Reagents for 300 pH tests
For other accessories see page 141.

MEASUREMENT PROCEDURE

• Select the program number corresponding to pH on the secondary

LCD by pressing PROGRAM W and V.

• Fill the cuvet with 10 mL of unreacted sample

(up to the mark) and replace the cap.

• Place the cuvet into the holder and

ensure that the notch on the cap is
positioned securely into the groove.

• Press ZERO and “SIP” will blink on the display.

• Wait for a few seconds and the display will

show “-0.0-”. Now the meter is zeroed
and ready for measurement.