Hanna Instruments hi 93732 用户手册

8

Range

0.0 to 10.0 mg/L (ppm)

Resolution

0.1 mg/L

Accuracy

±0.2 mg/L ±3% of reading

Typical EMC

± 0.1 mg/L

Deviation
Light Source

Light Emitting Diode @ 430 nm

Method

Adaptation of the Standard Methods for the
Examination of Water and Wastewater (18

azide modified Winkler method. The

reaction between dissolved oxygen and the re-

agent causes a yellow tint in the sample.

Light Life

Life of the instrument

Light Detector

Silicon Photocell

Environment

0 to 50°C (32 to 122°F);
max 95% RH non-condensing

Battery Type/Life 1 x 9 volt/40 hours
Auto-Shut off

After 10' of non-use

Dimensions

180 x 83 x 46 mm (7.1 x 3.3 x 1.8")

Weight

290 g (10 oz.)

9

INITIAL PREPARATION

HI 93732N is supplied complete with a 9 V
battery. Slide off the battery compartment
cover on the back of the meter and install
the battery while paying attention to its
polarity.

REQUIRED REAGENTS

Code

Description

Quantity

HI  93732A-0

Reagent A

5 drops

HI  93732B-0

Reagent B

5 drops

HI  93732C-0

Reagent C

10 drops

MEASUREMENT PROCEDURE

• Turn the meter on by pressing ON/OFF.

• When the LCD displays "- - -", it is ready.

• Fill one 60 mL BOD bottle completely with the unreacted

sample.

• Replace the cap and ensure that a small part of the sample spills

over. This is to make sure that no air bubbles have been trapped
inside.

• Remove the cap and add 5 drops

of HI 93732A and 5 drops of
HI 93732B. Replace the cap again
and ensure that a part of the
sample spills over.

• Swirl the solution. The sample becomes orange and a flocculant

agent will appear.

ON

OFF

9V