EYELA NVC-3000 User manual

R00
Vacuum Controller for
Condensation Units Instruction Manual
NVC-3000
Tokyo Rikakikai Co., Ltd.
This instruction manual is designed to use the product safely with keeping its
best performance.
Please keep this manual in a place easily accessible to every users.
IMPORTANT Be sure to read “Safety precautions” before use.

Alert mark
Signal word Definition
Wrong handling is assumed to cause the possibility of the death
or heavy injury of the user.
Wrong handling is assumed to cause the risk of injury of the
operator or physical damages.
Warning
Caution
IMPORTANT SAFETY INFORMATION
1. Warning signal word
We have undertaken thorough verification concerning the possible occurrence of risk in the
course of use of the product, but prediction of all and every kind of risk is extremely difficult.
Namely, cautions contained in this manual are not necessarily all of possible risks.
However, if the product is operated according to the procedure described in this manual, the
safe operation and work is ensured. Be sure to pay utmost care during handling of the product
to prevent accident or failure of the product.
Attempting to carelessly operate the product or to
touch the portion not-specified may result in
unexpected injury. Improper installation of the
product or wrong connection of pipes may prevent
from performing its functions or may cause a
malfunction.
Most of such accidents can be prevented if such
danger is known beforehand.
To ensure the safety, this manual defines the
information on such matters as requiring particular
care in the safety as follows in terms of the
importance and risk and attaches the alert mark and
signal word.
It is recommended to follow the instruction to ensure
the safe use of the product.

1. For safe operation ・・・ ・・ ・・ ・・・ 1
2. Product overview
2-1. Application ・・・・・・・ ・・ ・・ 1
2-2. Specification ・・・・・・・・・ ・・ 2
2-3. Vacuum control
(differences among pumps) ・・・・・ 3
2-4. Pressure control mode ・・・・ ・・ 4
2-5. Names of parts ・・・・・・・・・ ・6
2-6. Interlocking with related units ・・・・7
3. Names and functions of the control assembly
3-1. Operation panel ・・・・・・・・・・ ・8
3-2. Safety function ・・・・・・・・・ ・9
3-3. Alarm and warning functions ・・・・ 9
4. Installation
4-1. Installation environment・・ ・・・・ 12
4-2. Installation conditions ・・・・・・・ 13
4-3. Installation procedures・・・・・・・14
4-4. Installation of the vapor
temperature sensor ・・・・・ 16
4-5. Connecting the communication
cable ・・・ 17
4-6. Connecting the utility・・・・・・ ・18
5. Operation
5-1. Preparing for operation ・・・・・・・・ 19
5-2. Operating procedures ・・・・・・・・・ 20
5-3. Operation in the MANUAL mode・・・・ 24
5-4. Operation of the AUTO mode・・・・・・ 26
5-5. Operations in the PROGRAM mode・・・ 29
5-6. STEP PROGRAM mode operations・・・ 34
5-7. Setting parameters ・・・・・・・・・・ 39
5-8. Operations of related units connected
via NVC communication ・・ 43
5-9. Treatment after operation ・・・・・・・ 45
6. Causes and countermeasures of troubles ・・ 46
7. Maintenance and check up
7-1. Cleaning and care of the product ・・・・ 50
7-2. Replacement of the fuse ・・・・・・・・50
8. Disposal of Products ・・・・・・・・・・ ・51
9. After-sales Services ・・・・・・・・・・・ 52
10. Consumable and replacement
parts/list of optional items ・・・・53
Details of packaged items
1Vacuum Controller NVC-3000
1
1
2Instruction Manual
Optional items listed below are necessary to use this product
according to the specific use objectives:
・PBX type diaphragm pump control box
・Decompression unit
・CV-11 CV-12 solenoid valve for NVC control
・Communication cable and connection cable
・Securing clamp and vacuum hose
・Couplers to enable connection to devices
・DC adaptor for NVC3000
This instruction manual explains installation,
operation, troubleshooting, maintenance and
inspection, and discarding procedures for the Vacuum
Controller for Condensation Units :Model NVC-3000
Always read this manual before use to ensure
familiarization of the product.
Thank you for purchasing our product.
Introduction
Contents
Be sure to check the type and quantity of parts before
attempting to set them.

This product is designed to control a vacuum level of
a decompression condensation unit by controlling a
diaphragm type vacuum pump.
This product has a communication function and can
operate interlocked with different units by
connecting to a rotary evaporator, a water bath, a
diaphragm vacuum pump or a coolant circulation
unit equipped with a communication terminal with a
communication cable.
* A communication cable and other parts used
for connection are sold separately.
※Note that this product is for gas only. Do not
flow liquid or solid through the product.
※Control solenoids and pressure sensors are
consumable parts.
The pressure sensor is contained in the main
body and requires adjustment work for its
replacement. Ask your dealer or the nearest
service center for replacement.
-1-
Inverter diaphragm
type vacuum pump
PBX diaphragm pump
control box
Vacuum controller
NVC-3000
Solenoid valve
for NVC control
Coolant
circulation
unit
Rotary
evaporator Water bath
Diaphragm
vacuum pump
2-1 Application
2Product overview
1 For safe operation
Take extreme care for safety because this product is not of the explosion-
proof structure.
WARNING Never install in a dangerous atmosphere.
This product is not explosion-proof.
Using this product in a dangerous atmosphere may result in a fire.
CAUTION Follow the instructions to connect pipes.
Wrong connection of pipes may prevent correct operation of the unit as well
as a malfunction or an unexpected accident.
Never attempt to modify the product.
Operate the unit for the specified
purpose only.
An electric shock or a malfunction may result if the
product is modified or used for any purposes other
than that specified.
Warning
* Although the product employs anti-corrosion parts,
it does not support all types of solvents.
The control solenoid or the pressure sensor may
deteriorate depending on the solvent used or
operating conditions and control of the product
might become impossible.
When such situation may occur, a solvent collector
such as a cooling trap will be necessary between
the decompression container and the vacuum
controller.

Product name Vacuum controller
Model NVC-3000
Performance
Pressure measurement range 0～1066hPa(mbar) (0～800mmHg)
Pressure
measureme
nt
range
Manual control
(fixed-value control) VAC, 1～1013hPa(mbar) (VAC, 1～760mmHg)
Auto control
(automatic control) Automatic control of pressure at a level appropriate for the sample and
automatic fixed-pressure control
Program control
(gradient control) Typical 55 types of solvents are preset 10 solvents available for the user to register
Step program control 【Fixed-value control】VAC, 1～1013hPa(mbar),
Atmo (VAC, 1～760mmHg, Atmo)
【Gradient contro】1～1013hPa(mbar) (1～760mmHg)
Switching pressure units hPa、kPa、mbar、mmHg、Torr
Hysteresis
setting range
*1
Fixed-value control Automatic (2%) or 1 ～20hPa(mbar) (1 ～15mmHg)
Gradient control Automatic (2%) or 1 ～20% ※2
Vapor temperature measurement range 0 ～150℃(when an optional sensor is connected)
Time setting range 【Automatic stop time】OFF, 1 ～999min
【Gradient control】1 ～999min
【Step program control】0 ～999min
Pressure control mode Four types: fixed-value control, auto control, solvent program control,
step program control (20 steps, 2 programs)
Function
Setting Input on the sheet key, dial system
Indicated items Operation mode, measured pressure, pressure setting, vapor temperature
(when an optional sensor is connected), elapsed operation time, operation
status
Automatic leak function Automatic leak at the end of control: ON-OFF selectable
Cleaning function Automatic cleaning at the end of operation (Operation time: 1 ～10min
setting):
ON-OFF selectable
Manual cleaning：Press the leak key longer (approx.: 3 seconds)
Hold function Hold at any vacuum during decompression or gradient control
Evaporator link function Available by combining with the models N-1300, N-1210 and N-2110
Water bath interlocked function Possible by combining with models SB-1300 or OSB-2200
Coolant circulation unit interlock function Possible by combining with models CA-1116A, CA-1330, or CCA-1112A
NVC mutual communication function Possible by combining with model NVC-3000
Diaphragm pump control system Inverter diaphragm type vacuum pump：PID control
Diaphragm type vacuum pump：ON/OFF control
Configuration
Pressure sensor Diffusional semiconductor pressure transducer , material of the liquid
contacting part：SUS316L
Solenoid valve for leak Orifice diameter: φ1.6mm
Material of pipes and couplers PP, PTFE
Standard
Leak nozzle diameter φ10mm
Solenoid valve for
control (optional)※3 Model CV-11 Nozzle diameter: φ10mm, orifice diameter: φ1.6 Material of liquid contacting part of solenoid valve：PVDF,FFKM
Model CV-12 Nozzle diameter: φ13mm,orifice diameter:φ3.2 Material of liquid
contacting part of solenoid valve：PPS,PTFE
Connecting pump (optional)
○Inverter diaphragm type vacuum pump Model NVP-1000V,NVP-2000V,NVP-2100V
DTC-30DC
○Diaphragm type vacuum pump
Model NVP-1000・2000・2100
Model EVP-1000・1100・1200
Model DTC-22・41, Model DTU-20, Model MD1C, Model N920
-2-
2-2 Specification

Product name Vacuum controller
Model NVC-3000
Operating ambient temperature range 5～35℃
Operating ambient humidity range 30～80%RH(no condensation)
External dimensions (W x D x H) mm
* External dimensions in parentheses ( )
include protrusions.
138.7(150)×50(114.6)×114.2
Weight: kg Approx. 670g
Power input, rated power supply DC24V 375mA
-3-
※1 Setting of the hysteresis (ΔP) is unnecessary when you use an inverter pump.
※2 Percentage of a target gradient pressure.
※3 CV-11 (For a condensation unit of 1 ～5 liters)
CV-12 （For a condensation unit of 5 ～10 liters ）
・When you use an inverter diaphragm type vacuum pump,
connect it with the model NVC-3000 with a communication cable.
Vacuum is controlled by continuously varying the number of
rotations of the pump motor by using control signals for the model
NVC-3000.
Vacuum level is controlled by increase the number of rotations
immediately after starting vacuum control and decreasing the
number of rotations at around the set pressure (stops below the
lowest number of pump motor rotations).
・When you use a diaphragm type vacuum pump (constant
rotation speed), vacuum is controlled by connecting the model
NVC-3000, the diaphragm control box PBX, and the NVC control
solenoid valves CV-11・12 models.
Model PBX receives control signals from NVC-3000 to control the
vacuum level.
・Open/close the solenoid valve (vacuum line)
・Start/stop the pump motor
※1 You can set a hysteresis ΔP(Pressure control width by
opening/closing the solenoid valve).
2-3 Vacuum control (differences among pumps)
Time
ΔP
Pressure
Set pressure
Pressure
Time
Vacuum control start
Vacuum control start
Set pressure
Product name (Sold separately) Diaphragm pump control box
Type PBX
Standards Pump output (outlet) MAX6A
Operating environmental temperature range 5～35℃
Operating environmental humidity range 30～80%RH(no condensation)
External dimensions (W×D×H) mm 63×63×148
Weight kg Approx. 570g
Power input, rated power supply 100V～240V 1A（NVC-3000 is connected）

-4-
Set Press
Time
Auto Atop
Time
Mark Press
Stop Temp
Vapor
temperature
Set Temp
Pressure
Time
Leak Menu
Run
Stop
Power
Mode
MANUAL Standby
00:00:00
Display
1013
hPa
Set Press
hPa
100
Leak Menu
Run
Stop
Power
Leak Menu
Run
Stop
Power
Mode
AUTO Standby
00:00:00
Display
1013
hPa
Leak Menu
Run
Stop
Power
Mark Press
----
hPa
Pressure
MANUAL (fixed-value control) mode
After operation is started, fixed-value control will start at the fixed
pressure (Set Press).
The settable range for fixed pressure (Set Press) is between VAC
(continuous decompression) and 1013hPa (760mmHg).
You can change the fixed pressure any time irrespective of whether
the present mode is standby, decompressing or fixed-value control.
You can stop the unit automatically based on the operation time by
setting an operation stop condition (Auto Stop).
You can stop operation of the unit automatically based on the margin
of temperature increase (Stop Temp) from the vapor temperature by
using a vapor temperature sensor (optional).
AUTO (Automatic Control) mode
There are two modes: AUTO mode and AUTO-2 mode.
AUTO mode is an automatic operation mode that automatically
controls pressure to prevent sudden boiling and automatically
determines a pressure that enables a favorable collection rate and
a condensation time at the same time (Mark Press) in order to
perform the fixed-value control.
When an inverter pump is used, the Mark Press value will be
adjusted automatically as necessary after fixed-value control
has started.
You can stop the unit automatically based on the operation time
by setting an operation stop condition (Auto Stop).
AUTO-2 mode uses a vapor temperature sensor (optional). In
addition to the functions of the AUTO mode, the following
functions are available:
・Fixed-value control at the pressure (Mark Press) determined
automatically appropriately to the vapor temperature (Set
Temp).
・Automatic stop based on the margin of temperature increase
(Stop Temp) from the vapor temperature (Set Temp).
・You can use mixed solvent by using an adjusted temperature
(Adjust Temp) and the count of adjustment
※The unit has been set to be an optimal state at the room
temperature of 25℃±3℃and the cooling water
temperature of 5 to 10℃at the conditions below:
Solvent with low boiling point: Bath temperature 40℃
Solvent with high boiling point: Bath temperature 60℃
※Sudden boiling might be suppressed depending on the
sample.
In such a case, take following measures in
consideration: reducing samples, lowering the number
of sample flasks, or lowering the bath temperature.
2-4 Pressure control mode
There are four types of functions below in the control mode.

STEP PROGRAM(Step Program) mode
Program (Slope Control) mode
The product has a database of 65 solvents in total including 55
kinds of solvents including pre-registered 10 solvents (pre-
registered solvents) and 10 user solvents which the user can
freely set which allows the user to control vacuum
appropriately according to the solvent used.
The registered solvents at the factory shipping are as follows:
※The setting has been selected to realize the optimal
condition at the bath temperature of 40℃, the cooling
water temperature between 5 and 10℃, and the room
temperature of 25±3℃.
The unit controls a slope with a slope time (Slope Time) from
the slope start pressure (Slope Point) to the fixed pressure (Set
Press) and controls at a fixed value up to the fixed-pressure.
You can stop the unit automatically based on the operation
time by setting an operation stop condition (Auto Stop).
You can stop the unit automatically based on the temperature
increase margin from the vapor temperature by using a vapor
temperature sensor (optional).
You can set a solvent name for user solvents up to 18
characters and symbols. Characters available are
alphanumeric characters, space and symbols ( ,.-+*/() ).
-5-
2：Acetone （350hPa→240hPa：3min）
7：Benzene （160hPa→ 90hPa：2min）
13：Chloroform （380hPa→200hPa：3min）
17：1,2-Dichloroethane （180hPa→ 70hPa：3min）
21：Dichloromethane （950hPa→480hPa：3min）
26：Diethyl ether （800hPa→550hPa：3min）
30：Ethyl acetate （266hPa→ 93hPa：2min）
35：Hexane （280hPa→160hPa：2min）
52：Toluene （90hPa→ 20hPa：4min）
53：1,1,1-Trichloroethane（340hPa→160hPa：3min）
StepNo2
Time
StepNo1
StepNo3
StepNo4
StepNo5
StepNo
2 StepNo 3 StepNo 4 StepNo
5
Pressure
Time
Slope Point
Set Press
Pressure
Slope Time
Auto Stop
Leak Menu
Run
Stop
Power
Mode
PROGRAM Standby
00:00:00
Display
1013
hPa
Set Press
hPa
240
Leak Menu
Run
Stop
Power
Acetone
Leak Menu
Run
Stop
Power
Mode
STEP PROGRAM Standby
00:00:00
Display
1013
hPa
Leak Menu
Run
Stop
Power
P No 1
REPEAT
0 / 1
There are 5 programs up to 99 steps each
to be used as a programed vacuum controller which allows
programming of fixed-value control, slope control and
release to the atmosphere.
Control is made based on the set pressure (Press) and the
step operation time (Time).
You can set the next item on the program operation setting
screen.
Starting Step No（Start Step No）
Finishing Step No（Finish Step No）
Number of repetitions (Repeat)
Automatic Leak (Auto Leak)
Automatic cleaning(Auto Cleaning)
Recovery from Power Failure (Power Fail)

2-5 Names of parts
●Model NVC-3000
※Communication connectors, DC adaptor connector,
vapor temperature sensor connector and the micro
USB connector have a protective cap.
Remove the cap before connecting them.
-6-
Dial key
Run/Stop key
Leak key
Color LCD
Leak nozzle
DC adaptor connector
（DC24V)
Vapor temperature sensor
connector
Power key
Operation key
Micro USB connector
(For communication with
PC）
Menu key
Control Box connector
Inverter Pump connector
NVC-NVC connector
Comm. connector
Vacuum line connecting port
Leak nozzle
Fixing clamp
●Diaphragm pump control box
PBX(Optional)
●NVC control solenoid valve model
CV-11・12
(Optional)
CV-11・12
connector
NVC-3000
connector
Outlet
AC100V inlet with a
fuse
Connection nozzle
（Decompression
container side）
Connecting
nozzle (Vacuum
pump side)
Teflon tube connecting port
（Connected to NVC-3000)

2-6 Interlocking with related units
●The model NVC-3000 is interlocked with related units that are combined with communication optional parts for a
communication function.
See P.43～P.44 ”Operation of related units connected with NVC communication” for operating procedures.
-7-
NVC communication cable
・COM-0.5M (length:0.5m)
・COM-2M (length:2.0m)
NVC communication
branching box
・F-BOX
Diaphragm pump control box
PBX
NVC control solenoid valve
model CV-11・CV-12
Coolant circulation unit
Model CA-1116A
Model CA-1330
Model CCA-1112A
Water/oil bath
Model SB-1300
Model OSB-2200
Rotary evaporator
Model N-1300
Model N-1210B
Model N-2110
NVC communication cable
NVC communication cable
NVC
communication
cable
Diaphragm vacuum pump
Model NVP-1000・2000・2100
Model EVP-1000・1100・1200
Model DTC-22・41 Model DTU-
20
Model MD1C, Model N920
Inverter diaphragm type
vacuum pump
Model NVP-1000V・
2000V・2100V
Model DTC-30DC
NVC-PBX connecting cord
・NP0.5M(length:0.5m）
・NP2M (length:2m）
Vacuum control
communication cable A
・VC-2M(length:2m）
・VC-4M(length:4m）
Model NVC-3000 (rear)
Related unit
Rotary evaporator
Water
bath/oil
bath
Coolant circulation unit
Decompression unit
Inverter diaphragm
type vacuum pump
Diaphragm type vacuum
pump
Vacuum
controller
NVC
-
3000
Indication Set rotation
Measured rotation
Set temperature
Measured
temperature Set temperature
Measured temperature
Set vacuum level
Measured vacuum level
Setting
changes ○×○○
During RUN Rotation start ※1
Coolant circulation start
Decompression start
Motor rotation control
Solenoid valve
ON-OFF control
During STOP
Rotation stop※2 ※1
Coolant circulation stop
Decompression stop
RUN/STOP with signals from modelNVC-3000
Only STOP with signals from model NVC-3000
※1Manually press the RUN/STOP key to start/stop temperature control of the water and oil baths.
※2The jacks of the models N-1210B and N-2110 automatically rise during STOP.
Model NVC-3000 (2nd unit)
NVC-NVPV
communication cable
・NNV0.5M(length:0.5m)
・NNV2M (length:2.0m)
NVC-DTC30DC
connecting cord
・ND0.5M (length:0.5m)
・ND2M (length:2m)
Diaphragm pump control
box PBX
NVC control solenoid valve
model CV-11・CV-12

①LCD screen Displays a control mode, settings, measured values and an operating status.
②Operation status
display Displays operating statuses: Standby, Operation ( Run, Leak, Cleaning or Hold )
③Pressure control
status display Displays a pressure control status during operation (decompression, decompression slope, fixed value, increase or increase slope) with an arrow.
④Measured pressure Displays a measured pressure.
⑤Operation time
display Operation time is displayed in the form of Day:Hour:Minute:Second.
Day is not indicated when operation time is less than 24 hours.
⑥
Auto stop
display Displays the set time or the stop temperature when automatic stop based on operation time and temperature has been set. The stop temperature will be displayed when the vapor
temperature has stabilized and may be adjusted automatically depending on the operation
status.
⑦Inverter pump
operation
Indication
Operation status when the inverter pump is connected is displayed as a bar graph.
The light blue bar lengthens as the number of rotations increases and the whole bar turns to
light blue at MAX.
INV
⑧Mode display Displays one of the control modes: [MANUAL], [AUTO], [PROGRAM] and [STEP PROGRAM].
⑨Set pressure Displays the set pressure.
⑩Rotation display Displays the number of the flask when connected to the evaporator with the communication
cable.
⑪Vapor temperature
display Displays the value measured on the vapor temperature sensor when it is connected.
⑫Bath temperature
display Displays the setting and the sensor measured value when the unit is connected to the bath with a communication cable.
⑬Cooling temperature
display Displays the setting and the sensor measured value when the unit is connected to the coolant circulation unit with a communication cable.
⑭NVC-NVC
communication icon Displayed when communication is enabled by connecting two vacuum controllers.
⑮Power key Used to start by turning unit power on.
*Any operations of the power key are not accepted unless the operating unit is stopped.
⑯Run/Stop key Used to start or stop operation (automatic leak and automatic cleaning).
⑰Leak key
Used to open or close the leak valve.
During operation: The leak valve opens while this key is pressed.
During stop: The leak valve opens when this key is pressed and it closes when the key is
pressed again.
During washing: Pressing this key forces washing to finish.
If you keep this key pressed for more than three seconds, you can start manual cleaning.
⑱Operation key Displays a function according to the control mode, the display screen or operation status,
selects a control mode, switches screens or cancels or holds setting changes.
⑲Menu key Used to switch to the parameter setting screen.
⑳Dial key Used to move the cursors, change or determine settings.
Clockwise turn: Increase a value and move the cursor downward
Anticlockwise turn: Decrease a value and move the cursor upward
Pressed down: Start changing settings or determining changes made
Hold 00:00:00
MANUAL
Display
Set Press
100 hPa
Rotation
Vaper
Bath
Circulate
180rpm
19.2℃
40.5℃
6.4℃980 hPa
INV
3-1 Operation panel
3 Names and functions of the control assembly
-8-
⑧Mode display
②Operation status display
④Measured pressure
⑪Vapor temperature display
⑦Inverter pump operation display
⑲Menu key
⑯RUN/STOP key
⑰Leak key
①LCD screen
⑱Operation keys
③Pressure control status
display
⑳Dial key
⑭NVC-NVC
Communication icon
⑨Pressure setting
⑥Auto stop display
⑤Operation time display
⑩Rotation display
（Upper：measured value
Lower：set value）
⑫Bath temperature
display
（Upper：measured value
Lower：set value ）
⑬Cooling temperature
display
（Upper：measured value
Lower：set value ）
⑮Power key
AUTO
STOP
10min
40
5
180

No Indications and names Contents and status How to release
01 Power failure alarm
Power Failure When a power failure occurs during operation, the unit will stop
at the operation complete status
when power recovers.
The Power Failure alarm will not
be activated when power is turned
off using the power key during
operation.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
02 Vapor sensor alarm
Vapor Sensor When measurement of a vapor temperature becomes no more
possible during control that
requires the vapor temperature
sensor, the unit will stop at the
operation end status.
The same situation occurs when the
vapor sensor connector is removed
during operation or operation is
started without setting the vapor
sensor.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
03 Pressure sensor alarm
Pressure Sensor When measurement of pressure becomes no more possible during
operation, the unit will stop at the
operation end status.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
If there is a malfunction in the
vapor sensor,
the same alarm will occur when
operation is attempted.
04 Leak alarm
Leak The leak alarm valve will open when the pressure is below 900hPa
measured after cleaning has
finished.
Control output to the connecting
cord (diaphragm vacuum pump
output) is stopped and the
control solenoid valve is closed.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
05 High pressure alarm
High Pressure The unit will stop at the operation complete status when a measure
pressure exceeds 1100hPa during
operation.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
(Control solenoid valve and leak
valve: close, pump: stop)
-9-
ALARM
(01) Power Failure
Clr
ALARM
(02) Vapor Sensor
Clr
ALARM
(03) Puressure Sensor
Clr
ALARM
(04) Leak
Clr
3-2 Safety function
This product has the following safety functions. When an abnormal situation occurs, take
appropriate measures referring to the “Causes and countermeasures of troubles” on P.46.
Safety unit Operations Causes of activation
Over current flew to the PBX type pump output outlet
(vacuum pump output).
※Dedicated for diaphragm vacuum pump（6A or less）
Fuse Fuse will blow to shut off power.
Alarm
3-3 Alarm and warning functions
When alarm occurs, the buzzer will sound (automatically stops after five seconds) and the display shows the
description of the alarm as follows.
ALARM
(05) High Pressure
Clr

-10-
No Indications and names Contents and status How to release
06 Data error
EEPROM DATA This error occurs when there is an error in the data in the non-volatile
memory when power is turned on.
The portion with that error will be
reset to the factory shipping settings.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
07 Memory write error
EEPROM WRITE This error is triggered when a write error of the user data region to the
non-volatile memory occurs.
(Settings including pressure, program
and calibration data)
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
09 NVC mutual
communication error
NVC-NVC
This error is triggered when the
mutual communication between
vacuum control assemblies is
impossible for more than five seconds
during operation (Run, Leak, or
Cleaning).
This error occurs when connection of
the inverter pump is detected during
mutual connection with NVC.
This error occurs when a unit other
than the model NVC-3000 (such as
the model NVC-2300) is connected.
The unit will stop at the operation end
status.
(Only when the vacuum control
assembly mutual communication
function is used)
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
10 Inverter pump alarm
Inverter Pump This error is triggered when a error
occurs to the inverter pump.
The unit will stop at the operation end
status.
(Only when the inverter pump is
used)
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
11 Control valve wrong
connection alarm
Control Valve
This error occurs when CV-1 or CV-2 is
connected to the control valve.
This error status stop when operation is
finished.
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
Only the buzzer if it is sounding will
stop.
12 System Alarm
System Alarm This error occurs when an alarm generated on a related unit connected by
communication is received.
Operation stops without releasing
vacuum.
(Only when the related unit is connected
by communication.)
Use the [Clr] key to clear errors.
The display will return to the
ordinary screen.
The buzzer, if it is sounding, will
stop.
ALARM
(06) EEPROM DATA
Clr
ALARM
(07) EEPROM WRITE
Clr
ALARM
(09) NVC-NVC
Clr
ALARM
(10) Inverter Pump
Clr
ALARM
(12) System Alarm
Clr
ALARM
(11) Control Valve
Clr

Leak Menu
Run
Stop
Power
Mode
MANUAL Standby
00:00:00
Display
1013
hPa
Set Press
hPa
200
Leak Menu
Run
Stop
Power
PLEASE CLEANING.
-11-
Warnings will be released automatically when the release conditions are met.
They will also be released automatically when operation has ended.
Operation status displays will switch between "Run" and "Warning" alternately.
Warning
Recommended cleaning display
When the accumulated operation time exceeds 10 hours while the
automatic cleaning time is set at “Off”, a ”PLEASE CLEANING”
message to prompt cleaning will appear after operation is stopped.
Cleaning can be started by keeping the [Leak] key pressed for three
seconds or more. The cleaning process makes solvent remaining in the
control solenoid valve or pipes evaporate and discharge.
Although you can operate the unit by pressing the Run/Stop key, the
same message ”PLEASE CLEANING” will appear again when
operation is completed.
*See the conditions below as a rough guide for auto cleaning time:
When a low boiling point solvent is mainly used: 3 min
When a high boiling point solvent is mainly used: 5 min
See P.39 for auto cleaning settings.
*See P.40 for manual cleaning settings.
No. Names Contents and status How to release
13
Insufficient
decompression
capacity
Indicated when pressure cannot be reduced
by 1hPa or more for one minute during
forced decompression during operation of a
control mode.
Released automatically when
pressure reduced by 1hPa or
more for one minute or the
setting is attained.
14 Pressure drop This indication appears when the measured
pressure drops below the set pressure by
10hPa or more during fixed-value control.
Released automatically when
returned to the set pressure.
15
Pressure increase This indication appears when the measured pressure exceeds the hysteresis of the set
pressure for 10 seconds continuously during
fixed-value control.
When the inverter pump is used, it appears
when the measured pressure exceeds 2% of
the set pressure.
Released automatically when
returned to the set pressure.
16
Slop pressure drop This indication appears when the measured pressure exceeds the hysteresis of the set
pressure for 10 seconds continuously during
fixed-value control.
Released automatically when
the pressure returns to the target
pressure.
17
Slop pressure
increase
This indication appears when the measured
pressure exceeds the hysteresis of the target
slop pressure for 10 seconds continuously
during slope control.
When the inverter pump is used, it appears
when the measured pressure exceeds 2% of
the set pressure.
Released automatically when
the pressure returns to the target
pressure.
18 Insufficient slope
decompression
capacity
This indication appears if the fixed-value set
pressure is not attained even when 30
seconds have passed since the end of slope
control.
Released automatically when
returned to the set pressure.

●Place free of flammable gas, liquid, or solid materials in the
vicinity of the product.
●Place free from direct sunshine
●Place where the ambient temperature can be kept within a
range of 5～35℃.
●Place free from condensation
●Place of drafty or well-ventilated.
●Place with less humidity and free from splashing water
●Place with less dust
●Level, stable, and firm place
●Place free of units that will produce excessive electric noises
in the surrounding areas.
-12-
F-BOX
(Selling separately) PBX,CV-11
(Selling separately)
Improper handling of a deleterious, a toxic or
similar solvent may lead to an unexpected
accident.
Be sure to handle a deleterious or a toxic
solvent in the draft chamber.
Warning
4-1 Installation environment
4 Installation
Never install in a dangerous
atmosphere
This product is not explosion proof. Operating
this unit in a dangerous atmosphere may cause a
fire.
Warning
Select a site that meets the following conditions
for installing the product.

Decompression
container
Vacuum controller
When the unit is installed at a position
higher than the decompression
container or the vacuum pump.
Decompression
container
Vacuum controller
When the unit is installed at a position
lower than the decompression
container or the vacuum pump.
Waste liquid
Trap
-13-
Vacuum pump,
Pump control box
Vacuum pump,
Pump control box
4-2 Installation conditions
Be sure to install the vacuum controller
at a place higher than the
decompression container and the
vacuum pump.
The product may malfunction if the solvent is
liquefied in the pipe.
If you cannot install the unit at a higher position,
install a waste liquid trap between the
decompression container and the control solenoid
valve.
Caution
Pay attention to the following when installing the vacuum
controller .
Observe the instructions for
Connecting pipes.
Caution
Incorrect connection of pipes will prevent the unit
from operating correctly as well as may cause a
malfunction or an accident.
●Prepare appropriate hose and couplers.
Select hoses and couples for connecting to the
decompression container and the vacuum pump
appropriate for the nozzle diameter of the device and the
type of solvent used.
●Install the vacuum controller at a higher position.
Select a position higher than the decompression
container, the vacuum pump, hoses and couplers.
●If you cannot install the unit at a higher position, install a
waste liquid trap.
If you cannot install the vacuum controller at a position
higher than the decompression container or the vacuum
pump, install an optional waste liquid trap between the
decompression container and the control solenoid valve.
Install the waste liquid trap at a position to make the pipe
for the control solenoid valve minimum.
●Make the piping distance between the unit and the
decompression container or the vacuum pump as short as
possible.
●Take extreme care not to tightly close the leak nozzle or
allow foreign objects from entering.
●When atmospheric air to be suctioned at the release of
decompression must be clean, install a filter to the leak
nozzle.
●When you do not want to atmospheric air to be suctioned
at the release of decompression, purge N2 gas or other
inactive gas.
※ Set the purging pressure to 1029hPa or lower.
Applying a pressure higher than this may prevent a
correct operation or cause a malfunction.
An alarm is displayed and stops at a pressure of
1030hPa or higher.

Necessary optional devices will differ depending on the
vacuum pump to combine with.
-14-
4-3 Installation procedures
※1 Diaphragm type vacuum pumps that can be connected are
as follows:
Models NVP-1000・2000・2100
Models EVP-1000・1100・1200
Models DTC-22・41, Model DTU-20, Model MD1C, Model
N920
(You cannot use any other vacuum pump types.)
※2 Power for NVC-3000 is supplied from the model PBX.
※3 Never attempt to touch the surface of CV-11 or CV-12
solenoid valve for NVC control since it may be hot during
operation.
※4 Do not install the PBX with its panel surface (connector
surface) facing above to avoid foreign objects or water from
entering.
4-3-1 When a diaphragm type vacuum pump is used
NVC-PBX connecting
cord（Optional）
Use optional items below to combine the model NVC-3000 with a diaphragm
type vacuum pump (constant rotation)
・Diaphragm pump control box PBX
・NVC control solenoid valve
Model CV-11 (For 1 to 5 litter condensation units)
Model CV-12 (For 5 to 10 litter condensation units)
・NVC-PBX connecting cord
NP0.5M (length:0.5m)
NP2M (length:2m)
Model PBX
（Optional)
Model CV-11
Model CV-12
(Optional)
※3
(1) Connect the model NVC-3000 and the model PBX as shown in
the right figure with a connecting cord.
(2) Connect the connector for the CV solenoid valve for NVC
control to the model PBX.
(3) Connect the Teflon tube included with the NVC control
solenoid valve to the connecting port of the vacuum line of
NVC-3000.
（Refer to the instruction manual of the CV-11 & CV-12)
(4) Insert the connecting cord to the outlet of the model PBX
and insert the power plug of the diaphragm type vacuum
pump into the opposite socket. ※1
(5) Insert the power cord included with the model PBX into
the Power inlet with a fuse of the model PBX.
Teflon tubes CV-11 &
12 included
Vacuum line
connecting port
Power inlet with a fuse
Power cord
Pump connecting
cord
Outlet
Connector for
NVC control
solenoid
connector
Connect to the
diaphragm type
vacuum pump
suction nozzle
Vacuum
hose
Connect to the
decompression
container
(6) Insert the vacuum hose into the nozzle of the NVC control
solenoid valve to the end.
Carefully check where to connect the vacuum hose beforehand.
Insert both NVC-3000
and PBX so that their
arrows are at the top
PBX panel surface ※4

-15-
NVC-NVPV connecting cord
（Optional)
4-3-2 When an inverter diaphragm type vacuum
pump is used
Connecting cords and power adaptors to use will differ depending on the
type of the inverter diaphragm pump to connect.
Inverter pump
communication
cable (Optional)
Inverter diaphragm type
vacuum pump DTC-30DC
NVC3000 DC
adaptor
(Optional)
・NVC3000-DTC30DC connecting cord (For DTC-30DC）
ND0.5M （length:0.5m)
ND2M （length:2m)
・DC adaptor for NVC3000 is used.
Inverter diaphragm type vacuum
pump NVP-V
(1)Turn power of the inverter diaphragm type vacuum pump OFF,
connect the model NVC-3000 and the vacuum pump using the
connecting cord and then insert the DC adaptor into the DC
jack of the model NVC-3000.
(1) Turn power of the inverter diaphragm type vacuum pump OFF
and then connect the model NVC-3000 and the vacuum pump
using the connecting cord.
* Power for NVC-3000 is supplied from the model NVP-V
and does not require a DC adaptor.
DC jack
When combining model NVP-1000V,
NVP-2000V, or NVP-2100V with the
model NVC-3000
・Use NVC-NVPV connecting cord（For NVP-V)
NNV0.5M （length:0.5m)
NNV2M (length:2m)
When combining the model DTC-30DC with the model NVC-3000
Insert with arrows on
the both ends facing
above.
Connector for the
connecting cord

(2) Remove the union nut and the sleeve from the rear side of
the NVC main unit, insert the sleeve into the nozzle on the
inverter pump communication cable and install the nozzle to
the rear side of the NVC main unit.
Then insert the vacuum hose fully into the T-connector on
the inverter pump communication cable.
Sleeve
T-type
connector
Vacuum hose
Connect to the
inverter pump suction
nozzle Connect to the
decompression
container
-16-
Nozzle
Sleeve
Nozzle
※Put the sleeve in the nozzle first and
then install it to the rear of the NVC
main unit.
※Connect the vacuum hose after checking where it
should be connected.
※The sleeve is a very small part and take care not
to lose it during installation.
4-4 Installation of the vapor temperature sensor
(optional)
Vapor temperature sensor
(optional)
When you use a vapor temperature for vacuum control,
connect a vapor temperature sensor (optional) to NVC-
3000 as shown in the right figure.
※Vapor temperatures may be subject to
influences in the vicinity of a unit that produces
excessive electric noises.
Attached inverter pump
communication cable
Remove the union nut

NVC communication
cable
Vacuum control
communication
cable
Use a communication cable (optional) and a branching box (optional) to combine
the NVC-3000 and a related unit such as an evaporator with a communication
terminal.
Product name Connection Additional functions
Vacuum control communication
cable
VC-2M（length:2m）
VC-4M（length:4m）
※Note that you cannot use
this cable when you use the
inverter pump.
Connect the vacuum
controller model NVC-
3000 and the model NVC-
3000 vacuum controller.
When two vacuum controllers are controlled with one
diaphragm vacuum pump, you can operate these units by
monitoring their operation and by preventing from interfering
with operations of each other.
NVC communication cable
COM-0.5M（length:0.5m）
COM-2M（length:2m）
Connect the model NVC-
3000 vacuum controller to
a condensation unit-related
unit with a communication
terminal.
Evaporator：N-1300, N-1210B, N-2110
You can start, stop rotation of, set and display the number of
rotations from NVC-3000.
Water/oil bath:SB-1200,OSB-2200
You can stop temperature control interlocked with operation
and display a temperature from NVC-3000.
（Starting and setting of temperature control is possible from
the bath only.）
Coolant circulation unit：CA-1116A, CA-1330, CCA-1112A
You can control the circulation pump interlocked with
operation and set and display temperatures from NVC-3000.
Branching box F-BOX for NVC
communication Branches the NVC communication cable The NVC communication is branching-connected when you connect two or more condensation related units to NVC-3000.
The specifications are the same for 4 connectors.
-17-
4-5 Connecting the communication cable (optional)
NVC communication
branching box F-BOX
Communication terminals for
the evaporator, the water/oil
baths, the coolant circulation
unit
NVC
communication
cable
Comm. connector
NVC-NVC
connector
Communication terminals for
the evaporator, the water/oil
baths, the coolant circulation
unit
Communication terminals for
the evaporator, the water/oil
baths, the coolant circulation
unit
(When branching is
unnecessary)
Do not switch off the inter-connected
units with the communication cables
If the inter-connected unit is switched off
during the operation ,it may cause the interruption
of the communication between the Vacuum Controller
and the inter-connected units
Caution