Chengdu Hilin Technology Hilintec S23 Series User manual

Copyright © Chengdu Hilin Technology Co., Ltd.
1
S23 Micro Vacuum Liquid Pump Series
User Guide
Issue
09
Date
2020-07-10

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
1
Copyright © Chengdu Hilin Technology Co., Ltd. 2020. All rights reserved.
No part of this document may be reproduced or transmitted in any form or by any means
without prior written consent of Chengdu Hilin Technology Co., Ltd.
Trademarks and Permissions
is a trademark of Chengdu Hilin Technology Co., Ltd.
All other trademarks and trade names mentioned in this document are the property of
their respective holders.
Notice
The purchased products, services and features are stipulated by the contract made
between Chengdu Hilin Technology Co., Ltd. and the customer. All or part of the products,
services and features described in this document may not be within the purchase scope or
the usage scope. Unless otherwise specified in the contract, all statements, information,
and recommendations in this document are provided "AS IS" without warranties,
guarantees or representations of any kind, either express or implied.
The information in this document is subject to change without notice. Every effort has
been made in the preparation of this document to ensure accuracy of the contents, but all
statements, information, and recommendations in this document do not constitute a
warranty of any kind, express or implied.
Chengdu Hilin Technology Co., Ltd.
Address:
No.3663 Section 2 Muhua Road
Shuangliu District
Chengdu Sichuan China 610000
Website:
http://www.hilintec.com
Tel:
[phone]

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
I
About This Document
Purpose
This document is related to the S23 micro vacuum liquid pump
products,which is used to guide relevant technical personnel to
initially understand the characteristics of the product.
Intended Audience
This document is intended for technical personnel. You should have
a good understanding of your product and have a clear concept of
the relevant parameters, specifications, and other information of the
applications of the micro pump.
Keyword
PWM speed control, related parameters, wiring instructions

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
II
Change History
The change history accumulates each update of this document. The
latest version of the document contains all the previous updates.
Issue
Date
Product
Version
Issuer
Modification
01
2019-2
01
XYL
First official release,
initially determine the
product model
02
2019-4
01
XYL
Modify some parameters
03
2019-5
01
XYL
Modify the logic wiring
diagram and wire
sequence
04
2019-9
01
LYZ
Modify the document
format
05
2019-12
01
XYL
Add flow-height curve,
cancel speed controller
adaptation
06
2020-04
01
XYL
Update starting current
and flow curve test
conditions
07
2020-05
01
XYL
Add description of
models
08
2020-06
01
XYL
Modify notes and some
information on medium
09
2020-07
01
XYL
Add materials of the
wetted parts

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
III
Contents
About This Document............................................................................................... I
Change History..........................................................................................................II
Contents.................................................................................................................... III
1Characteristics........................................................................................................1
1.2 Brush-less DC Motors..........................................................................................................................1
1.4 Excellent Air Tightness........................................................................................................................ 2
1.5 Gas-liquid Dual Purpose...................................................................................................................... 2
2Functions................................................................................................................. 3
2.2 Start-Stop Function.............................................................................................................................. 3
2.3 Speed Feedback....................................................................................................................................3
3Technical Specifications...................................................................................... 4
3.1 Key Specifications............................................................................................................................... 4
3.2 Description of Versions........................................................................................................................5
3.3 Working Conditions............................................................................................................................. 5
3.4 Pump Materials.................................................................................................................................... 6
3.5 Lifetime................................................................................................................................................6
3.6 Flow Curve...........................................................................................................................................6
3.7 Starting Current....................................................................................................................................8
4Product Model Description................................................................................. 9
4.1 Brief Description of Model Naming.................................................................................................... 9
5Electrical Connection..........................................................................................10
5.1 Definition of Signals.......................................................................................................................... 10
5.2 Logic Wiring Diagram....................................................................................................................... 11
6Cautions................................................................................................................. 13

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
IV
7Dimensions............................................................................................................14
8Appearance............................................................................................................16

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
1
1Characteristics
1.1 Compact Size
The product weighs about 80g and the overall size is about
35*51*56mm
1.2 Brush-less DC Motors
This model is driven by brush-less motor which has the advantages
of long service life, low interference and high reliability.
1.3 Protections
Equipped with overheating protection and overload protection
function, which can extend the service life of the pump.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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1.4 Excellent Air Tightness
The internal double sealing structure offers good air tightness,
making this series of pumps suitable for applications requiring high
air tightness.
1.5 Gas-liquid Dual Purpose
Liquid-gas dual-use, can be used as a liquid pump or a vacuum
pump, can also be used to transfer gas-liquid mixed media; dry-run
and self-priming.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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2Functions
2.1 Speed Control Feature
The flow can be changed by adjusting the motor speed of the pump
(by adjusting the PWM duty cycle).
2.2 Start-Stop Function
The start and stop of the pump can be controlled by the start and
stop control level signal, which is suitable for frequent start and stop
working conditions.
2.3 Speed Feedback
The speed of the pump can be obtained through the speed feedback
signal, easy to realize working condition monitoring and
closed-loop control.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
4
3Technical Specifications
3.1 Key Specifications
(Standard atmospheric pressure 101kPa)
Model
Voltage
(V DC)
As a Vacuum Pump
As a Liquid Pump
Size
(mm)
Weight
(g)
Load
current
(mA)
Flow
Rate
(L/m
in)
Relative
Vacuum
(-kPa)
Load
current
(mA)
Free
Flow
Rate
(Pure
Water)
(L/min)
S23L
12
≤170
≥
0.95
≥15
≤250
≥0.4
35*51*56
≈80
Note: 1. The input voltage requires 12V±10%.
2. Unless otherwise specified, the technical parameters are measured under
the conditions of temperature 25℃ and standard atmospheric pressure of
101kPa. For products with other parameters and specifications, you can
contact us to customize.
3. The parameters in the table are measured at the maximum speed of the
motor.
Model
Max.
Suction
Height
(m)
Flow Rate@
Max.
Suction
Height(L/min)
Max.
Pressure Height
(m)
Flow Rate@
Max.
Pressure Height
(L/min)
S23L
1.4m
250mL/min
1.2m
200mL/min
Note: The maximum suction height flow rate refers to the water flow rate at the
maximum suction height.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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The maximum pressure height flow rate refers to the water flow rate at the
maximum pressure height.
3.2 Description of Versions
Performance
Version
Simplified Version
Standard Version
Premium Version
Lifetime
as a gas pump ＞3000h
as a liquid pump ＞1500h
as a gas pump ＞6000h
as a liquid pump＞4000h
as a gas pump＞10000h
as a liquid pump＞6000h
Noise
★
★★
★★★
Reliability
★
★★
★★★
Parameter
consistency
★
★★
★★★
Note: 1. The more ★, the better performance of this item.
2. * Indicates that the life-time of the standard version and premium version
is still under test, which is expected value.
3.3 Working Conditions
1. Environment: The permissible ambient temperature temperature
of the pump is 0℃～50℃, the pump should avoid exposure in the
sun, and should work in a clean and ventilated environment.
2.Medium: Permissible gaseous media temperature range is 0 ℃ ～
50℃. The medium is allowed to be rich in water vapor, but cannot
contain particles or oil mist. The permissible liquid medium
temperature range is 5℃~50℃. It is not allowed to pump oily liquid
and high viscosity liquid.Do not use this product to transfer liquid
that is easy to precipitate and crystallize for a long time.
3. Load: Both the inlet and outlet can run with full load (i.e.
completely block the inlet), but the load applied by the inlet cannot
exceed the maximum vacuum of the pump. Do not block the outlet
when pumping liquid.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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3.4 Pump Materials
The materials of the wetted parts: fiber reinforced nylon,ABS and
EPDM rubber.
Except that the intake valve seat of the pump is ABS, the other
plastic parts are reinforced nylon and the rubber is EPDM rubber.
If the medium is corrosive, please check the chemical resistance and
compatibility of the medium according to the material of the wetted
parts.
3.5 Lifetime
1. Life-time Test Conditions
In a clean and non-corrosive laboratory, the pump continuously
pumps clean water around the clock; ambient temperature: 5 ℃ ～
33℃, fluctuates with the climate; relative humidity: less than 90%,
fluctuates with the climate.
2. Simplified version: as a gas pump, lifetime>3000h; as a liquid
pump,lifetime >1500h; Standard version: as a gas pump, lifetime>
6000 hours, as a liquid pump, lifetime>4000 hours;Premium version:
as a gas pump,lifetime> 10000 hours, as a liquid pump,lifetime>
6000 hours.
Note: If the actual working conditions of the pump better than our test conditions,
the actual lifetime of the pump will be extended.
3.6 Flow Curve
Pumping height-flow curve, there are certain individual differences
between different micro pumps. This curve is a statistical value and
is only used as a technical reference for users to confirm the
working point. The "flow" mentioned in this section refers to the
"water flow".
Curve Test Conditions:

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
7
Medium
Temperature
(℃)
Atmospheric
pressure
（kPa）
Material
of hoses
Internal
diameter
of hoses
（mm）
Non-test tube length
(mm)
Outlet
（Testing
suction）
Inlet
（Testing
discharging）
Clean
Water
20
101
Silicone
rubber
hose
4
100
100
Note: 1. The maximum average flow rate of the curve will be slightly lower
than the nominal value, which is due to the resistance of the test
pipeline components, which leads to the attenuation of the flow;
2.The value of this curve is for reference only, not as a basis for product
acceptance.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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3.7 Starting Current
The starting current curve is measured under the working condition
that the inlet and outlet are filled with water, and there are certain
individual differences between different micro pumps. This curve is
a statistical value, which is only used as a technical reference when
users determine the power supply system, and is not for acceptance
data.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
9
4Product Model Description
4.1 Brief Description of Model Naming
This series of products are divided into three versions: simplified
version, standard version and premium version.
Note: If the remarks starts with a letter, it means a special custom function. For
example, letter"GJ" means customized high-temperature medium function, and
"GH", means customized high-temperature environment function. If it starts
with a number, it means other information.
Example 1: S23L-23 (S23 large flow pump, 12V voltage simplified version)
Example2: S23L-23-GJ (S23 large flow pump, 12V voltage premium
version,customized high temperature medium function)

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
10
5Electrical Connection
The electrical connection is a description of the external power
supply and signal wire connection of the product. The product
comes with standard connection wires, and the definitions of the
wires are distinguished by colors.
5.1 Definition of Signals
There are 5 motor wires for this product. The wiring and usage instructions are as
follows.
S.N.
Color
Function
Explanation
Remarks
1
Black
Negative pole of
the power supply
2
Red
Positive pole of the
power supply
DC12V （±10%）
3
Yellow
FG feedback
signal (motor
speed feedback
signal, pulse
signal), the motor
outputs 6 pulses
per rotation
Output:
4V≤High Level
Low Level≤0.6V
The maximum rated
current of the FG
feedback signal is
3mA.
The internal of the
motor is open-drain, so
which requires a
pull-up externally.
Voltage DC 5V,
resistance 4.7kΩ.
4
White
Pulse Width
Modulation
（PWM）
Input：
0V≤VIL≤0.8V
2V≤VIH≤..5V
（15kHz～25kHz）
Use PWM to change
the motor speed and
adjust the flow. PWM
input signal frequency
range: 15kHz～25kHz.
This port cannot be
used to control the start
and stop of the pump.
5
Orange
Control the start
and stop of the
Input
This signal line can be
used to control the start

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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Note: If speed control and speed feedback are not needed, the red wire shall be
connected to the positive pole of the power supply, and the black, white and
orange wires connected to the negative pole of the power supply; the yellow
wire shall be insulated and wrapped.
5.2 Logic Wiring Diagram
If speed control and speed feedback are not needed, the red wire
shall be connected to the positive pole of the power supply, and the
black, white and orange wires connected to the negative pole of the
power supply; the yellow wire shall be insulated and wrapped and
the pump will work at the rated speed.
When you need to use the PWM speed control function, you need to
use a signal source that supports PWM signal output (function
signal generator, MCU, PLC, etc.), connect the signal source output
to the white PWM input cable, and connect the PWM signal source
ground to the ground of the DC power supply and wrap the yellow
wire with insulation.
motor.
Level Signal：
2V≤Stop≤5V
0V≤start≤0.8V
and stop of the pump,
especially for frequent
start and stop. If the
pump does not work for
a long time, disconnect
the red power cord.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
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When you need to use the PWM speed control function and monitor
the pump operation or perform feedback control through the FG
signal, you need to use an upper controller (MCU, PLC, host
computer, etc.) that supports PWM signal output, FG signal input
and start-stop control. Connect the signal source output to the white
PWM input wire, and connect the PWM signal source ground to the
DC power ground. The yellow FG feedback signal needs to pass a
4.7kΩresistor before connecting to DC 5V for a pull-up, and then
connect to the FG signal input terminal of the upper controller; if
using our matching micro-pump speed controller, no additional
pull-up is required.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
13
6Cautions
Please read the instructions in this chapter carefully and follow
the instructions strictly before use.
1. This product has no waterproof, dust-proof, and explosion-proof
functions and cannot be used in flammable and explosive environments!
2. Foreign matter must not fall into the hydraulic connectors, and there
should be no solid particles in the medium, otherwise the micro pump will
be damaged!
3. When this product is used to transfer harmful medium, it must be
double-sealed to ensure personal safety!
4. The matching piping components and containers must have
sufficient strength to ensure personal safety!
5. Please follow the instructions strictly!
6. Do not use it to pump oil mist, high-viscosity liquids or liquids easy to
precipitate.

S23 Micro Vacuum Liquid Pump Series User Guide
Copyright © Chengdu Hilin Technology Co., Ltd.
14
7Dimensions