MRC VC-100 User manual

VC-100
Vacuum controller
Operating Instructions
Operating Instructions
PLEASE READ THIS MANUAL CAREFULLYBEFORE OPERATION
Hagavish st. Israel 58817 Tel: [phone], Fax: [phone] [email protected]
MRC.2.22

Disclaimer
•The intellectual property right of this manual belongs to Dragon Laboratory
Instruments Limited (hereinafter referred to as “the Company”), i.e. relevant
copyright belongs to the company.
•Products of the company are under the patent protection of China and other
countries and regions (including obtained patents and patents being applied for).
•This manual had been prepared with the attitude of being responsible for the users
but cannot guarantee that the contents of the manual are fully correct.
•If any occasional or subsequent loss is caused by the use of the manual, the
company will not be liable in any way.
•The manual is a pure technical document, free of any implication or oblique hint of
any third party. Moreover, we won‟t be liable for any user‟s misunderstanding upon
the printing error(s).
•The company and any of our employees will not bare any liability for
direct/indirect loss of information or business (if any) caused by the information of
the manual or the product it mentioned.
•The company reserves the right to change specification and price of the product
without prior intimation.
•The contents of this manual should not be copied/abstracted or modified in any
form without written approval of the company.
•The manual and any content of it must not be copied, abstracted or modified in any
form without the company‟s written approval in advance.

Table of Contents
1. SAFETY PRECAUTIONS........................................................................................1
2. PRODUCT OVERVIEW..........................................................................................2
2.1 SCOPE OF APPLICATION.........................................................................................................2
2.2 TECHNICAL PARAMETERS ......................................................................................................2
2.3 COMPONENTS ....................................................................................................................3
3. OPERATING INSTRUCTIONS...............................................................................4
3.1 OPEN-PACKAGE INSPECTION..................................................................................................4
3.2 OPERATION........................................................................................................................5
4. MAINTENANCE....................................................................................................12
5. FAILURE DIAGNOSIS..........................................................................................13
6. PRODUCT CERTIFICATION...............................................................................13
7. WARRANTY POLICY...........................................................................................14

1
1. Safety Precautions
•Ensure that the label indicated the correct voltage before connecting the device to
power supply.
•Ensure good working environment free of explosive, hazardous and inflammable
substances. This product is intended for indoor use only.
•The instrument should be placed in a low humidity, well ventilated, less dust, water
free environment without the perpendicular incidence of sunshine and intense light
source. The environment should be free of corrosive gases or strong magnetic
interference, and far away from heating gas, fire and all other heat sources.
•Ensure that the instrument and its accessories are free of any potential defects.
•Ensure that the instrument is secured tightly and standard accessories supplied by
the manufacturers only should be used.
•Wear proper protective equipment while operating this instrument to prevent the
potential dangerous circumstances with the risk of splashing/ release of toxic or
inflammable gases.
•The power cable must be kept away from the surface of heating module rather than
shield the device.
•Please prevent water from splashing on the electrical elements of the product.
•The power supply is fully disconnected only if the power plug is pulled out.
•Before assembly, disassembly, cleaning or maintenance, the main power plug must
be pulled out.
•Ensure the vacuum pump‟s power is not more than the maximum power output by
the instrument.
Caution!
•Please carefully read the manual before operating the product, and
observe the specifications on safe operation.
•Ensure that only trained staff operates this product.
Ground protection for safety!
•Ensure that the power socket has been properly grounded before
operating the product

2
2. Product overview
2.1 Scope of application
•The instrument is designed for the application environments with dedicated
independent power supply, such as schools, laboratories and factories. It is applied
to control the vacuum level of the vacuum system with gas as the medium in the
environments, under the circumstance as below :
•Ensure that the voltage fluctuation does not exceed normal value by ±10%.
•Ensure to place the instrument at 30cm away from the wall and atleast 10cms away
from any other instruments.
•The product is not intended for use in residential areas.
2.2 Technical parameters
Setting range of vacuum
1-1000mbar
Determination range of
vacuum degree
1-1000mbar
Control operation mode
Single-point control operation mode, program
operation mode
Control program
Can save up to 5 programs.
Each program contains five-step control (vacuum
degree and timing can be set).
Setting mode
Touch screen setting
Display screen
5-inch TFT
Sensor overload pressure
1500mbar
Connecting tube interface
6.2mm
Fig. 2.1
>300mm
>100mm

3
diameter
Materials in contact with
steam
PTFE, PP, silica gel and ceramics
Steam temperature
5℃-40℃
External dimension
WxDxH
189mm×207mm×193mm
Weight
4.0kg
Input power supply
AC110—240V, 50Hz/60Hz
Working temperature
10℃-40℃, ≤80%RH，the altitude does not exceed
2000 meters
Pollution levels
2
Input power
600W
Maximum output power
500W (220V), 300W(110V)
2.3 Components
Name
Description
Touch screen
Setting parameters and displaying settings and
operation information
Fig. 2.3.1
Pump interface
Air vent
Fig. 2.3.2
Load interface
Touch screen
Communication
interface
Three-in-one switch
Power output
socket

4
Three-in-one
switch
Unit power input, with a switch controlling the
power supply to the entire unit.
Communication
interface
Communication
Pump interface
Connects the vacuum pump
Air vent
Connects with air or inertia gas if necessary.
Load interface
Connects the load, such as revolving evaporator.
Power output
socket
Provides power supply to vacuum pump.
3. Operating instructions
3.1 Open-package inspection
Open-package inspection aims to confirm the completeness of associated parts. The
packing list is given below.
Name
Qty.
Main unit
1
Power line
1
Operating Instructions
1
If you find any damage on the packing, please specify the damage after receipt. If you
find any internal damage after unpacking, please contact your local supplier or
manufacturer.
Note:
If you find any visible damage on the product, please don‟t connect the
product to power supply.
Table 2
Table 3

5
3.2 Operation
3.2.1 Instrument preparation
•The instrument should be place on a stable surface and well ventilated without any
flammables or explosives.
•Ensure that the label indicated the correct voltage before connecting the device to
power supply.
•Ensure that the power socket is grounded properly.
•Connects the lines of the instrument, vacuum pump and load properly.
•Connects the power cable of the vacuum pump to the instrument and turn ON the
vacuum pump switch.
•Connect the power cable of the instrument properly, and turn ON the Power switch.
3.2.2. Startup interface description
Button name
Function introduction
VENT
Gently touch VENT to vent air and lift it to stop
venting.
PROGRAM
Choose the control mode and set the control pressure
value and running time.
SETTINGS
Set the delay time to open and close the pump and
valve, set the local atmospheric pressure, adjust the
pressure sensor calibration parameters.
START
Gently touch it to start the control program, with the
Fig. 3.2.1

6
icon changed to , gently touch it again to stop
the control program.
Note:
„PROGRAM‟ and „SETTINGS‟ buttons cannot be operated if the control
program starts.
Table 4

7
3.2.3. Instrument configuration
Gently touch the "SETTINGS" button to pop up the password soft
keyboard, enter the password (the default initial password is 6666), then
press “enter”key, confirm the password is correct and then pop up the
setting interface, as shown in the figure below.
Name
Function introduction
Pump Delay(ms)
The delay time after opening or closing the vacuum
pump.
Valve Delay(ms)
The delay time after opening or closing the solenoid
valve (inside the instrument).
K, B
Pressure sensor calibration parameters
P0(mbar)
Local atmospheric pressure value
Reset
Restore the factory settings
After setting, click “OK” key to return to the startup interface.
Note:
Before clicking the “Reset” button, record the pressure sensor calibration
parameters (K and B). After restoring the default setting, write (K and B)
into the instrument, otherwise the pressure measurement accuracy will be
adversely affected.
Fig. 3.2.2
Table 5

8
3.2.4. Operation mode selection and configuration
1.Click the “Program” button to pop up the program selection interface as shown in the
following figure.
Click “Vacuum control” in the “Function” section to choose the
single-point control operation mode, click “Program” to select the
program operation mode.
2. Single-point control operation mode
Click “Vacuum control” in the “Function” section to refresh the current
page as shown in the following figure.
Fig. 3.2.3
Fig. 3.2.4

9
Name
Function Introduction
Set vacuum(mbar)
Set the vacuum value within a range of 1 - local atmospheric
pressure (P0)
Hysteresis(mbar)
Hysteresis value affects the pressure fluctuation range and the
ON/OFF frequency of vacuum pump.
Setting range 1-300mbar
Time(min)
Time can be set within a range of 0-5999min
After setting the parameters, click “OK” key to return to the startup interface.
Note:
The larger the hysteresis value set, the larger the pressure fluctuation, the
smaller the hysteresis value set, the smaller the pressure fluctuation and
the more frequently the vacuum pump starts up and shuts down. The
recommended hysteresis value is set at 10mbar.
Note:
The sum of the set vacuum value and hysteresis value cannot exceed
(P0-10) mbar and the set vacuum value is larger than the hysteresis value.
3. Program operation mode
Click “Vacuum control” button in the “Function” section to pop up the
program selection interface as shown in the following figure.
Table 6
Fig. 3.2.5

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(1) Program selection
Name
Function introduction
Open
Select the program number
Hysteresis(mbar)
Hysteresis value affects the pressure fluctuation range
and the ON frequency of vacuum pump
Setting range 1-300mbar
After setting the parameters, click “OK” key to enter the program
operation interface as shown in the following figure.
Table 7
Fig. 3.2.6

11
(2) Program editing
Click the “Edit” button in the “program selection interface” to pop up the
program editing interface as shown in the following figure.
Name
Function introduction
NO
Sequence No. of program execution
Time(min)
Timing time, set within a range of 0-5999min
Vac(mbar)
Set the vacuum value within a range of 1 - local
atmospheric pressure (P0)
After setting the parameters, press the program number to be saved until
the upper part of the interface indicates “save”. As shown in the figure.
Note:
If the set vacuum value or timing is blank, it indicates that the current step
Fig. 3.2.7
Program No.
selection button
Program editing area
Table 8
Fig. 3.2.8
Indicates “save”

12
will be skipped to the next control program.
3.2.5. Ventilation
Gently touch the “VENT” button to vent air and lift it to stop venting.
4. Maintenance
Proper maintenance and operation of the instrument in good working state can extend
its service life.
Keep the instrument dry and clean in routine operations. Clean the outer surface with a
non-grinding cleanser and connect to power supply only if the entire surface is dry.
If liquid or moist solid enters the product, please disconnect the power supply and
contact the manufacturer/ local supplier for more advice.
•Stains on the surface of device, if any, shall be cleaned by clean soft rag and
detergent.
•Keep the product clean, and the cleaning solution is not allowed to flow into the
machine.
•Power must be disconnected before maintenance and cleaning, and please use our
recommended methods to clean the product.
•Avoid cleaning the instrument with corrosive cleaning solution.
•If this instrument is left unused for a long period, switch power OFF and store it in
a dry, clean and smooth surface at normal temperature.
Please refer to product Service Manual for details on machine maintenance.
Caution!
Before any maintenance or inspection, the power cable must be pulled
out of the socket.

13
5. Failure diagnosis
The advanced production technology and testing methods are used for rigorous testing
before delivery, to ensure good reliability. In service, the common failures are generally
caused by improper operation or setting.
If the errors cannot be handled properly, please record the error phenomenon and notify
the local dealer, or contact us directly.
The following are the possible failures of the vacuum controller in application:
Fault phenomenon
Cause analysis
Solution
The vacuum pump does
not work
The power switch on the
vacuum pump is not turned
ON.
The power cable connection is
improper or damaged.
Switch power ON the
vacuum pump.
Connect the cable
properly or replace the
damaged cable.
Error message appears
when setting the
pressure value
Check whether the set value
exceeds the limit.
Adjust the set value.
The solenoid valve and
pump is ON/OFF
frequently.
Check the pipeline for
airtightness.
Check whether the hysteresis
value is too small.
Connect the pipeline
properly.
Increase the hysteresis
value.
6. Product certification
MRC certifies that the construction of this product conforms in accordance to
national and industry standards and ISO9001 standards, and other international standards
organizations.

14
7. Warranty policy
For claims under the warranty please contact your local supplier. You may also send the
instrument directly to manufacturer, enclosing the invoice copy and giving reasons for
the claim. Manufacturer will not be liable for freight costs.
According to the manufacturer’s warranty clause, the warranty period of the
product is 24 months from the date of shipment under normal service conditions
specified in the manual
Warranty shall not apply to any product or parts which have been damaged due to
mishandling or improper installation or abnormal conditions of operation
This instrument is warranted to be free from defects in material and
workmanship and it must be operated in accordance with our operating guidelines
Although great care is used when packaging items for shipment, MRC
cannot accept liability for transportation of goods from MRC and transit damage is not
covered by warranty