Huazheng HZCS-3 User manual

HZCS-3
Automatic Oil Acidity Tester
Huazheng Electric Manufacturing (Baoding) Co., Ltd

Contents
I. Overview and Technical Index............................................................................................ 2
II. Structure and Installation....................................................................................................3
III. Preparation Work................................................................................................................ 3
IV. Instrument Operation......................................................................................................... 5
V. Maintenance....................................................................................................................... 21
VI. Operation Notice.............................................................................................................. 22
VII.Packing List.......................................................................................................................23

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Dear customers：
Thank you for choosing HZCS-3 transformer oil acid tester.
We hope that this instrument will make your work more relaxed and happy, So that
you can get clear and accurate results in the experimental analysis work.
Please read this User Manual before using the tester, and follow the instructions to
operate and maintain it for prolonging its service life.
This instrument is characterized by “Performing the test automatically by a slight click
only”.
If you are satisfied with our product, please introduce to other users. Any other
problems in using this equipment, please tell us .We are always at your service for giving
you every satisfaction.

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I. Overview and Technical Index
1. Overview
HZ CS-3 transformer oil acid tester is a fully aut o mat i c measuring instru m ent
which adopts th e extracti on me thod to accurately detect the ins u l a ting oi l
acid value. This instrument ca n improve th e working eff i ciency and test
accuracy, and at the same ti m e ensure the safe t y of the body by re d u cing
the operat o r's contact with the samples and reagents .
The instrument will automatically search the samples, inject th e
extraction, make a blank ti tr a tion, do an ex peri ment , clean off, display
printing results and other operations as long as the operator put the
sample cups in th e sample cup hol e s and inject the ex tr a c tion in the cup.
Once start ed, 1 to 3 samples can be measured, whic h is convenient and
high effi ci e n cy.
Because of th e pr epara t ion of the standard ac id fo r in s t rum ent calibration
and calibration procedure, the cli e n t s can calibrate th e inst ru ment and the
neutralizing liq u i d at any time so that the instrument ca n overcome the
defect of changes in concentration of neutralizing liqui d during use. At the
same time, dur i n g the test the instrument wi l l automatic all y de d u c t the
background va l u e of the extract so that th e instrument can ignore the
influence from the change of background val u e on the ex tr a c tion. Al l these
design make th e result more ac c u rat e an d reliable.
2. Technical index
1) Test range: 0.002～1mg KOH /g
2) Test error: ≤± 0. 00 5m g KO H /g
3) Repeatability: ≤0. 0 0 5 m g KO H/g
4) Ambient temperature: 10 ℃～ 45 ℃
5) Relative humidity(RH): ≤ 85 % R H
6) Voltage supply: AC2 2 0 V/ 5 0 Hz
7) Power: 50W

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II. Structure and Installation
1. Host structure
2. Installation
1) After unpacking, put the instrument in a stable laboratory bench. Then check whether
the parts are damaged or not, and whether the random accessories are complete.
2) Connect the power supply.
Note：The instrument must be adequately grounded.
III. Preparation Work
1. Preparation solution
Six kinds：Neutralizer(Ethanol—KOH) solution、Extraction、Standard acid solution、BTB
aqueous solution、Washing solution、Anhydrous ethanol。
（1）Neutralizer(Ethanol—KOH): The white solid in the glass bottle labeled KOH supplied
with the instrument transfer to the glass bottle with the Ethanol-KOH label as much as
possible. And then inject about 100 ml of Anhydrous Ethanol in the glass and shake it
completely so that it is completely dissolved. At last, set aside for a day and night.
（2）Extraction liquid configuration:
①Prepare a 1500ml container (A) and a 300ml reaction cup (B), pour 500ml isopropyl
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