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HZ-1024
Lubricating Oil Anti-foam Tester
MANUAL
Huazheng Electric Manufacturing (Baoding) Co., Ltd
Contents
I. Overview...................................................................................................................................1
II.Key Function And Feature..................................................................................................1
III. Major Technical Indicators...............................................................................................1
IV. Operational Approach........................................................................................................2
V. Use of temperature control meter......................................................................................... 3
VI. Use of timer............................................................................................................................. 6
VII. Fault analysis and Troubleshooting................................................................................... 6
VIII. Precautions........................................................................................................................... 7
IX. Packing List...........................................................................................................................8
1
I. Overview
The HZ-1024 lubricating oil anti-foam tester is designed and manufactured according
to the national standard GB/T12579 and the American Society for Testing and Materials
standard ASTM D892. It is suitable for measuring the foam tendency and foam stability of
lubricating oil under specified conditions.
II.Key Function And Feature
The HZ-1024 type lubricating oil anti-foam tester is mainly composed of high and low
temperature water tanks, power supply parts, air flow regulators, input refrigerators, air
filters, diffusers and so on.
1 Drop-in refrigerator
2 Low temperature bath
3 Cold head
4 Low temperature bath temperature control meter
2
5 Air pump
6 Flow meter
7 High temperature bath temperature control meter
8 High temperature bath
9 Power switch
10 Low temperature bath timer
11 Stirring switch
12 Low temperature bath power switch
13 Filter tower
14 High temperature bath power switch
15 Stir switch
16 High temperature bath timer
III. Major Technical Indicators
1. Input power: ≤2300W
2. Power supply: AC220V±10% 50Hz
3. Temperature control range: low temperature 24℃, high temperature 93.5℃
4. Temperature control accuracy: ±0.5℃
5. Stirring motor: 15W
6. Temperature adjustment range: 0 ~ 99.9℃
7. Timing device: 0 ~ 99.99 hours
8. Portable refrigerator power: 200W
9. Flow meter: 16 ~ 160ml/min
IV. Operational Approach
1. After unpac king the inst rument, car efully remove the pac kaging, an d
chec k whethe r the instrument accessories are com plete and fr e e of
da m a g e agains t the instrument packing li st.
Not e : If the instrum e nt accessories are not complete or th e accessories are
da m a g ed, plea se contact our co m pany as soon as possible.
3
2. Place the low-tempe r ature ba t h and hi gh-temperature bath on the le ft
an d right sides of the control box, and add an ap propriate am ount of
medium; put the input refrigerat o r (cold he a d) into th e low-temp er ature
ba t h an d fix it; connect the respect ive load pl ugs to the i r corr e sponding
sock ets.
Not e : The medium in the constant te mperature bath must be higher than
th e heating tube to avoid dry heating of the heating tub e .
3. Insert the measuring cyli n der contai n ing the sample in t o the me asuring
cylinder fix ture and fix it, then plug th e rubber plug with the fo am head rod
an d the measu ring cylind e r tightly, an d connect the fo u r ai r nozzle s on the
control box with the foa m head rods respec t i vely. .
4. Tur n on th e power sw itch and the stirring swi t ch, an d then turn on the
swi t ch of the inp u t refrigerator and the gas source switch. When the
te mperature reaches the set tempe r a ture point, pe r form the test accordi n g
to the standard requirements. The valve can be ad justed to contr o l the gas
fl o w by adj u sting the four flow meters.
5. Afte r the test is over, the switch of the input refrigerator and the air
source switch should be cut off, and then the main engine stirring and
po w e r switch sh ould be cut off.
V. Use of temperature control meter
After the instrum ent is powere d on, the upper digital tube of the digital
di splay tempe r a ture control meter disp l ays the main control temperature
meas urement value, and the lower di g ital tub e di splays th e main control
set value.
If the upper row shows OVER, it means the sensor is open or the inpu t
signal exceeds the measurement range.
Set value change method
Pres s th e key, the up p er row di splays SP. Press th e ▲ or ▼ key
4
to make the lower row display the required va lue. Press ag ain
or go to standard mode.
Con t rol parame t e r change me thod
Pres s the key for more than 4 se c onds, th e upp e r row dis plays
th e prompt of the cont r o l param eter, and press the ▲ or ▼ key to mak e
th e lower ro w display the requi red value. Co ntinue to press the key, the
up per ro w wi ll displa y the pr ompts of ea c h parameter in turn, pr ess th e
▲ or ▼ key to make each control par a meter the required value. Press
th e key for mor e than 4 se conds to retu r n to the standa r d mode.
(It wil l automatica lly return to the st andard mode after 1 mi nute
without ke y press)
Th e function parameters are sh ow n in the table below
Prompt
name
Predetermined
area
Description
Initial
value
Time
scale reset
-99（99.9）
~100（100.0）℃
Time proportional reset (RESET)
is only used to adjust the static
difference of the proportional
control instrument
0
rE
Process
value
offset
-99（99.9）
~100（100.0）℃
Used to correct the measurement
error generated by the sensor and
thermocouple compensation wire
0
rt
Insensitiv
e zone
(dead
zone)
0.4~100
（100.0）℃
Insensitive area of position type
and alarm function, the same dF of
position type and alarm function of
instrument with position type
control
0.4
dF
Alarm
point
setting
-1999~1999℃
Alarm point setting, when AL>0, it
is the upper limit alarm; when AL
＜0, it is the lower limit alarm, and
the output state is automatically
reversed
50
AL
Control
cycle
(heating
side)
1~100sec
Relay output ≮20s,
SSR and thyristor switch≮3s
20
2
T
5
Alarm
delay time
0~3600sec
When the measured value reaches
the alarm value, the alarm relay
will only output after Ct time has
passed
0
Ct
Proportio
nal band
(heating
side)
1~300℃
Proportion is used for adjustment,
the larger P, the smaller the
proportional effect, the lower the
system gain, and it only acts on the
heating side
30
p
Integratio
n time
(re-adjust
time)
0~3600sec
Integral action time constant, the
larger the I, the weaker the integral
action
240
I
Differenti
al time
(presettin
g time)
0~3600sec
Differential action time constant,
the larger D, the stronger the
differential action, and can
overcome the adjustment
60
d
password
0~2
0: All parameters can be modified
1: Only the given value (SP) can
be modified
2: All parameters cannot be
modified
0
Lc
Do not press th e bu t t on for more tha n 4 seconds to en t er the
standard mod e, and it will au t omatically retur n wi thin 1 minute. Some
fu n ction par a meters may not be changed .
Self-tuning function of digital display temperature
control meter
After pressing the ▲ key for 8 seco nds, the AT light flashes , and the me ter
star ts auto-tuning. After the auto-tuning is finished, the AT li ght goes out to
ob t ain a set of PID parame t e rs with a faster temper a ture rise . The meter
controls ac c ording to th e new PI D parameters.
After pres sing th e ▼ key for 8 seconds, the AT light flashes, and th e
in strument star ts aut o - tuning. Af ter the auto-tuning is fi nished, the AT ligh t
go es out, and a set of PID parameters that can overcome the
ov er-te mperature is obtaine d. The inst rument controls accord ing to the
ne w PID parameters.
6
Th e new PI D parameters can be checked on the inst rument.
During the aut o - tuning process , press the ▲ or ▼ key for 8 sec onds an d
th e n the AT light will go ou t , the auto-tuning will be ter m i nated, and th e
meter will co ntrol acc ording to the original PID param eters.
VI. Use of timer
When timing is needed, adjust the chronograph to the timing state and press the
"timing" button.
Timer operation: ①Turn on the "timing" button on the right side of the timer panel, and
the screen displays numbers. ②Set the time period switch according to the time required
for the test (the one with a horizontal line under the English letter is the countdown time
period switch, such as S, h, etc.). ③Press the "timing" button on the right side of the panel,
the timing is cleared, and there is no display on the screen; press it again, the button pops
up and the timing starts. ④After the timing is over, the buzzer will alarm.
VII. Fault analysis and Troubleshooting
Under normal circumstances, turn on the power switch, the power indicator light is
on, and after starting up, if the above process is found to be abnormal, it can be
analyzed and handled according to the following situations:
Fault description
Failure analysis
Troubleshooting
Turn on the power switch,
the indicator light is off
Fuse blown
Replace the fuse
Poor power connection
Check the circuit for short
circuit
The power switch is
damaged
Replace the power switch
Turn on the water bath
stirring switch, the motor
does not rotate
There is a problem with the
stirring switch
Replace the stirring switch
There is a problem with the
stirring motor
Replace the mixing motor
Open circuit
Check and exclude
7
The bath temperature is
not constant
Solid state relay is broken
Replace solid state relay
Damaged heating tube
Replace heating tube
Sensor damaged
Replace sensor
Temperature control meter is
damaged
Replace the temperature
control table
Unstable flow or no
display
Filter tower leaks
Air leakage in the control
box
VIII. Precautions
1. Th e instru m ent should be placed in a ventilated and dry place . Keep the
in strument clean. Pay attenti o n that the elect ric contr ol part should not
en t er water or get we t .
2. The ground wi re shou ld be connected before use, and often che ck
whe t h er the grounding is go od.
3. When ins t alling, pa y specia l attent i o n to han d le with care to prevent
collision.
4. Never energize wh e n there is no med ium in the bath.
5. The tilt of the drop -in refri gerator should not be gr eate r th an 45 degrees .
6. It is strictly forbidden to sta r t the input refrige rator freque ntly. It must be
tu r n ed on again after 30 minutes after each sh utdown.
7. Since the refrigerator and the cold head are co nnected by a stainless
steel hose, th e r e is an insu l ation tube on th e outer ja cket of the ho se.
Ple ase pay attention when un pac king and in stalling: do not push, pull,
sque e ze or forcibly tw ist the hose, and it is stric t l y prohibi ted to hit the
ev aporat o r to avoid re f rigerant lea kage. The minimum bend i ng radius of
th e hose shall not be les s than 100 mm.
8. Wh e n the instrument br eaks down, you sho uld ask ex perien ced
pr o f essionals to repair it or notify our co mpany, and do not disassemble it
at will.
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9. The warr a n ty pe r iod of this instrum ent is one year.
IX. Packing List
No.
Item
Qty
1
Certificate and manual
1
2
Host
1
3
Measuring cylinder
4
4
Gas diffusion head
4
5
Intake pipe
4
6
"O" ring
4
7
Fuse tube
2
8
Filter tower
1
9
Measuring cylinder rubber stopper
4
10
Electromagnetic air pump
1
11
Drop-in cooler
1
12
thermometer
2
13
Thermometer rubber stopper
2
14
Inner diameter φ6 gas connection pipe
1
15
Inner diameter φ3.5 gas connection pipe
2
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