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Model 890

An ISO 9001:2208 | ISO 14001:2008 | ISO 13485 WHO:GMP Products | GLP Compliant Products

Model 890 Microcomputerized BOD5 (Biochemical Oxygen Demand for 5 Days) Analyzer is designed by the principle of pressure difference. When the water sample is put into incubator, keep the culture temperature at 20Âą1 oC for 5 days, because of the biochemical oxidization, the organism in the sample will be converted to the oxides of nitrogen, carbon and sulfur, etc, and the gas of carbon dioxide will overflow from the water then be absorbed by the potassium hydroxide (or sodium hydroxide) in the culture bottle, so the air pressure in the sealed culture bottle will reduce. Measure the pressure difference and give a data processing by microcomputer, the measuring result can be displayed and printed.

This instrument is widely used by teaching or science research academy, petrochemical industry, water quality monitoring department and environmental protection department, etc.


Specifications • Measuring range

: 0 to 1000 mg/L

• Accuracy

: accord with "GB7488-87”

• Display

: 6-digit LED

• Print

: Pp40

• Sample number measured

: 8

at one time • Culture temperature

: 20±1 oC

• Weight of main unit

: 8 kg

• Power

: <70 W

Characteristics: • Controlled by microcomputer • Digital display, direct-reading • Print biochemical reaction curve • Simple to use • Stable and reliable performance • Easy to maintain


TECHNOCRACY PVT. LTD. SALES OFFICE (INDIA) 312-313, Vardhman Capital Mall, L.S.C. 10, GulabiBagh, Delhi-110052, INDIA Tel: 0091-11-23646703, 23643054 (M) +91-9313971681| Email:

SALES OFFICE (HONG KONG) Unit D 28 11/f Wing Tat Comm, Bldg 97, Bonham Strand East, Sheung Wan, HONG KONG (PRC). Tel: 0086-13929598046 | 0086-18922303099 Email:

SHOWROOM 141, Rai Industrial Estate, Rai, Sonepat, Haryana-131029, INDIA Tel: 0091-0-9312219738 (M) +91-9717741167 Email:

SALES OFFICE (RUSSIA) Inmed Trade Street, Ozerkovsky Embankment, Unit No 50 Straine-1, Off-502, Moscow, RUSSIA Tel: 0049-79592345 | Email:


Model 890 An ISO 9001:2208 | ISO 14001:2008 | ISO 13485 WHO:GMP Products | GLP Compliant Products

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