Time Electronics 7165 User manual

User Manual
7165
High Pressure Compressor
Revision 2210-1
10-22
Time Electronics Ltd
Unit 5, TON Business Park, 2-8 Morley Road,
Tonbridge, Kent, TN9 1RA, United Kingdom.
T: [phone] | F: [phone]
[e-mail] | www.timeelectronics.com

© 2022 Time Electronics Ltd.
All rights reserved.
Nothing from this manual may be multiplied, or made public in any form or manner, either
electronically or hard copy, without prior written consent from Time Electronics Ltd.
This also applies to any schematics, drawings and diagrams contained herein.
This manual provides operating and safety instructions for the Time Electronics product.
To ensure correct operation and safety, please follow the instructions in this manual.
Time Electronics reserves the right to change the contents, specifications and other
information contained in this manual without notice.

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7165 High Pressure Compressor User Manual
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Contents
Introduction....................................................................................................................................2
1.1 Description.............................................................................................................................................2
1.2 Features ................................................................................................................................................ 3
1.3 Models ...................................................................................................................................................3
Specifications ................................................................................................................................4
Warnings ........................................................................................................................................5
Controls and Connections............................................................................................................6
Operation........................................................................................................................................7
5.1 Operating Precautions...........................................................................................................................7
5.2 Working with Controllers and Calibrators ..............................................................................................7
5.3 Operating Modes ................................................................................................................................... 8
5.4 Start-up Procedure ................................................................................................................................8
5.5 Pressure Setpoint Editing .................................................................................................................... 10
5.6 Configuration Menu .............................................................................................................................11
CalBench Installations ................................................................................................................ 14
Virtual Control Software..............................................................................................................15
7.1RS-232 Connection .............................................................................................................................15
7.2 Control Panel.......................................................................................................................................16
7.3 Setting and Changing a Pressure Setpoint..........................................................................................17
7.4 Setting and Changing a Hysteresis Value ...........................................................................................18
7.5 Setting and Changing the Pressure Unit .............................................................................................19
7.6 Controlling and Venting ....................................................................................................................... 20
Maintenance................................................................................................................................. 22
8.1 Replacing the Power Supply Fuse....................................................................................................... 22
8.2 Replacing the Compressor Fuse ......................................................................................................... 22
8.3 Internal Maintenance and Servicing ....................................................................................................22
Warranty and Servicing............................................................................................................... 23

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Introduction
1.1 Description
A range of compact pressure compressor pumps for supplementing calibration benches and
pressure instruments. Primarily designed for use with the 8030 pressure controller, 7165
models can be used to create a fully automated pressure calibration system. This removes
the requirement for nitrogen cylinders or bulky high pressure compressors.
Four versions are available with pressure generation up to 70 bar. Each unit is supplied pre-
configured to the controller or calibrator they are supplementing, enabling quick and easy set
up by the end user. This works by pre-setting the 7165 pressure to approximately 110 %
above the controller line pressure requirement. Once connected, the pump can be started in
two button presses to reach the pressure set point.
In addition to the standard transportable 7165 models, a CalBench integrated version is
available. This solution situates the pump inside the CalBench console to create a self-
sufficient pressure system. It is ideal for CalBenches used in small workshops or containers.
CalBench integrated versions do not feature a panel display, but are operated via a virtual
control software application on the control centre module.

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1.2 Features
•Compact electric pressure pump
•Suitable for use with pressure controllers
•Models for 17, 35, 50 or 70 bar
•Oil free system, provides clean dry air
•Front panel controls and display
•Accuracy 1 % FS
•RS-232 interface for remote control
•Minimess fitting on output, hose supplied
•Virtual control software
1.3 Models
7165/G17b..............................Pressure Compressor/Pump (0 to 17 bar)
7165/CV17b....................... Pressure Compressor/Pump (-0.8 to 17 bar)
7165/G35b..............................Pressure Compressor/Pump (0 to 35 bar)
7165/CV35b....................... Pressure Compressor/Pump (-0.8 to 35 bar)
7165/G50b..............................Pressure Compressor/Pump (0 to 50 bar)
7165/CV50b....................... Pressure Compressor/Pump (-0.8 to 50 bar)
7165/G70b..............................Pressure Compressor/Pump (0 to 70 bar)
7165/CV70b....................... Pressure Compressor/Pump (-0.8 to 70 bar)

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Specifications
Pressure Ranges/Models
7165/G17b: 0 to 17 bar | 7165/CV17b: -0.8 to 17 bar
7165/G35b: 0 to 35 bar | 7165/CV35b: -0.8 to 35 bar
7165/G50b: 0 to 50 bar | 7165/CV50b: -0.8 to 50 bar
7165/G70b: 0 to 70 bar | 7165/CV70b: -0.8 to 70 bar
Compressor Type Oil free system, provides clean air with no need for external filters
Accuracy 1 % FS
Pressure Units psi, bar, kgf/cm²
Resolution 1 psi, 0.1 bar, 0.1 kgf/cm²
Front Panel Front panel 4.5 digit high visibility display with push buttons for modifying
pressure output and maintenance
Interfaces RS-232 communication with virtual control application included for PC or
laptop control
Output connection
1/8 " Female BSP with minimess type fitting. Hose supplied with specified
output fitting thread.
Power supply 100 to 240 V AC 50/60 Hz
Operating temperature 10 to 50 °C
Operating humidity 0 to 90 % RH
Dimensions L 280 x H 330 x W 210 mm
Weight 7165 - 17b & 35b: 8 kg
7165 - 50b & 70b: 12 kg

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Warnings
The 7165 pump is designed for use with pressure controllers. These systems control a
supplied pressure source and output them to a unit under test. The 7165 is connected to the
line input of the controller. Please observe all warnings and safety instructions when dealing
with high pressure supplies and outputs. Please ensure that all users of the instrumentation
have fully read and understood operating instructions and safety procedures for handling
high pressure systems. Observe all warnings before operating pressure calibration systems.
Avoid electric shock risk when touching the equipment:
Use only suitable power cable with earth connection.
Never power the equipment to the mains socket with no earth connection.
Before working on or removing the pressure connections, perform a vent operation on the 7165.
With this operation, the 7165 discharges the pressure of the system internally, making safe the
pressure connections and hoses.
Be careful when supplying pressure to a controller, calibrator or UUT of a set range. The 7165
could over-pressure a sensor or device if set above the allowed pressure. Time Electronics is
not responsible for damage to instruments/devices over-pressurized by the compressor.
Other pressure equipment and accessories (ie hose, reservoirs, protection devices) connected
to the compressor must be appropriate to the working pressure range.
The 7165 should be operated by authorized persons qualified to work on pneumatic high
pressure systems. The user is responsible for the configuration and selection of suitable
parameters for the 7165 and related instruments. There is a potential risk of personal injury and
property damage resulting from incorrect usage. Use the 7165 according to this user manual,
any operation not described here is not allowed.
High voltage is present inside the unit. It can cause damage and injury. Do not make any repair
or service inside the equipment without removing the power supply plug from the mains.
Do not place materials under the pump or around the unit. It requires adequate ventilation.
Do not over-tighten the input or output connectors as this can damage the threads.
The fan outlet has a filter that can accumulate dust. It is recommended to clean this filter
whenever necessary to avoid overheating the compressor.
THERMAL CUT-OUT SAFETY FEATURE
The 7165 is a compressor for use in sealed systems. In cases of the extended periods of use
with high air flow and depending on the ambient thermal condition, the compressor can interrupt
its operation due to a rise of temperature detected by the safety device.
As soon as the ventilation system brings the compressor temperature back to appropriate levels,
which may take a few minutes, the instrument will return to its normal operational status.

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Controls and Connections
Power switch
Compressor
fuse
Control Panel
Display & keypad
Front
Rear
Mains Input
(power supply fuse under)
Pressure Output
(minimess type fitting)
RS-232 Port
Ventilation Slots
on both sides of unit

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Operation
5.1 Operating Precautions
The 7165 is a compressor designed for use with pressure controllers, calibrators and test
systems that require a stable pneumatic line pressure. A key benefit of the 7165 is that it
removes the requirement for high pressure air and nitrogen cylinders in the lab or workshop.
The unit features an internal low volume pneumatic pump, meaning a relatively low stored
energy versus compressed gas systems or cylinders. This is a benefit to site safety and
protection in the working environment. However, it should still be noted that the unit can
generate high pressure that can be hazardous, so necessary safety precautions must be
followed and warnings (section 3) must be adhered to.
Before using the 7165 you should ensure all connections, fittings and hoses are suitably
rated for the required operational pressures. You should also ensure that these are in good
condition for their dedicated use.
5.2 Working with Controllers and Calibrators
Before operating the 7165 you should know or clearly define the output pressure that you
intend to use the unit to supply. Because the 7165 is a low volume system, it is not ideally
suited for use with regulators that self-relieve and vent constantly. With such systems the
compressor setpoint will not stabilise and there will be a constant requirement for the pump
to pressurise against the repeated pressure release of the regulator.
The 7165 is most suitable for use with pneumatic pressure controllers such as the Time
Electronics model 8030 (8030B CalBench module). Controllers have a specific pressure
range and typically the input requirement is 110% to 120% above this range.
If using the 7165 with an 8030, here are some example settings to use based on the range
of the controller:
8030 range (highest sensor) 7165 Set Pressure 7165 Hysteresis Setting
10 bar 13 bar 2.5 bar
20 bar 24 bar 3.5 bar
30 bar 35 bar 4.5 bar
40 bar 45 bar 4.5 bar
50 bar 56 bar 5 bar
60 bar 67 bar 6 bar

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5.3 Operating Modes
The 7165 air compressor has two modes of operation:
•Configuration mode
•Automatic control mode
In the configuration mode parameters are selected and are assigned values to them.
This mode is indicated by the led LD2 (red) on. In this mode the compressor is disabled.
In the automatic control mode, the compressor is enabled, and the output pressure is
controlled according to the setpoint set. This mode is indicated by the led LD1 (green) on.
5.4 Start-up Procedure
Warning: The 7165 should be connected to the pressure controller or device it will supply pressure to, with all
fittings and hoses securely tightened and checked.
To turn on the instrument, connect the power cord of the 7165 to the mains, and set the
front panel switch to the ON position.
At start-up, the 7165 defaults to configuration mode, with the compressor disabled.
A VENT (pressure relief) operation is started automatically.
The display shows the word VENT and the current system pressure. This operation
discharges the system pressure internally until the pressure reading is zero.
After the VENT operation is completed, the display
shows the pressure unit. Units are represented by the
first character: "p" for psi, "b" for bar, and "k" for kgf/cm²
and then the setpoint value.
bar
setpoint

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At this stage, the keys have the following functions:
Key Function
ENTER
Starts automatic control mode
DOWN
Starts editing the setpoint
UP
Starts editing the setpoint
If the setpoint shown is the desired value, simply press the ENTER key to start the automatic
control mode (LD1 green on, compressor enabled).
If you want to change the setpoint value, simply press the UP or DOWN key. At the edit
level, the keys have the following functions.
Key Function
UP
Increases the digit
DOWN
Decreases the value
ENTER
Switches to the left digit
Start-up Display and Setpoint Input Steps
NOTE: All configuration parameters are kept in non-volatile memory and determine the normal operation of the
instrument. Through these parameters the user can adapt the instrument according to the needs of the process,
in case it is necessary to change the factory configuration.

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5.5 Pressure Setpoint Editing
When in automatic control mode, to enter configuration mode simply press the ENTER key.
Pressing the ENTER key, the SP (setpoint) is displayed.
To edit it, press the UP or DOWN key. At the edit level, the keys have the following functions:
Key Function
UP
Increases the digit
DOWN
Decreases the value
ENTER
Switches to the left digit
Setpoint Editing Steps

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5.6 Configuration Menu
The 7165 has a configuration menu where you can edit the hysteresis parameter, select the
pressure unit, and perform the VENT (pressure relief) function.
To access this menu, press the ENTER key for more than 5 seconds.
The first option shown in the menu is "psi".
To navigate the menu use the UP or DOWN keys.
Choose the desired option and press the ENTER key. If you want to leave the menu, select
the "ESC" option.
Configuration Mode

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5.6.1 Hysteresis
In automatic control mode, the 7165 keeps the compressor on until the pressure setpoint
(SP) is reached. As soon as this value is reached, the compressor is turned off.
The hysteresis pressure setting is the amount of pressure you let the 7165 drop by before
the pump re-starts to pressurize to the setpoint.
It is user-configurable and can be set as required for specific applications, or kept as a
standard value for a permanent setup with a controller of a certain pressure range.
To edit it, enter the 7165 setup menu by pressing the ENTER key for more than 5 seconds,
select the "HYST" option, press the ENTER key and edit the desired value.
Because the 7165 is a low volume compressor, the hysteresis value is useful to set at a
value that the controller being supplied pressure is still above it’s required input.
Example:
Pressure controller range = 30 bar
Pressure controller allowed pneumatic input = ~35 bar
7165 pressure setpoint = Set to 35 bar
7165 hysteresis value = Set to 4 bar
Outcome: The 7165 will start to pump when the pressure drops to 31 bar, ensuring pressure
remains above the input requirement the controller needs to operate effectively.

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5.6.2 Venting
The VENT operation (pressure relief) must be performed before removing or making
pressure connections. With this operation, the 7165 discharges the pressure of the system,
making safe the withdrawal and realization of the pressure connections.
To perform the VENT function, access the 7165 setup menu by pressing the ENTER key for
more than 5 seconds, select the "VENT" option and press the ENTER key. The system
pressure will be discharged through the VENT port to a safe level.
You can also vent the unit by turning the power switch on and off quickly.
The 7165 vents internal to the case so no pressure is exhausted externally.
5.6.3 Pressure Units
The 7165 is set at the factory with the pressure unit "bar". However, the pressure unit can be
changed.
To select the pressure unit, access the 7165 setup menu by pressing the ENTER key for
more than 5 seconds, select the desired unit (psi, bar, or kgf/cm²), and press ENTER.
5.6.4 Example Test Setup
7165
Compressor
7115
Contamination Trap
7161 Manifold
UUT
8030
Pressure Controller

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CalBench Installations
For customers who have purchased the 7165 with a Time Electronics CalBench system, the
unit will be supplied with all the necessary hoses and fittings for usage.
The 7165 can be situated near or far from the bench with the length of hose and RS-232
cable supplied to meet this requirement.
The 7165 can be powered on and the unit can be operated via the virtual control application
on the CalBench control centre module.
The pressure hose connects from the rear of the pump to the rear of the console, typically to
the 8030B module input. RS-232 from pump to the rear RS-232 port.
7165
Compressor
UUT
7161P Manifold
7115
Contamination Trap
8030B Module
Pressure Controller
Control Centre Module
Running virtual control software

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Virtual Control Software
7.1 RS-232 Connection
The 7165 is fitted with an RS-232 port on the rear of the unit. This can be connected to a PC
or laptop to run the virtual control software application.
Note: For customers who have ordered the 7165 with a CalBench system featuring a control centre PC module,
the software will be pre-loaded and configured for use. The only requirement is to connect the 7165 to the rear
RS-232 port and the pressure to the input of the module as shown in section 6.
Once installed you can open the application and the virtual control screen will display.
To connect to the 7165, select the RS-232 comm port you are using from the drop-down
menu and press the “Connect” button.
If a previous connection has been made, the unit will default to this COM port so only need
to press the “Connect” button once the application opens.
Once connected the buttons will become active and the current settings from the
compressor will be displayed. The settings that show will be “Unit”, “Set Pressure” and
“Hysteresis”. These settings are commonly preset in the factory before shipment.

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7.2 Control Panel
Controls
1. Output Pressure
Displays the pressure being generated by the compressor.
2. Unit Button
A selectable drop-down menu button. It displays the selected pressure unit.
3. Set Pressure Box
An input box that is selectable by double-click to enter the required pressure setpoint.
4. Hysteresis Box
An input box that is selectable by double-click to enter the required hysteresis value.
5. Vent Button
Vents the compressor.
6. Control Button
Starts the compressor controlling to the set pressure.
7. Adjustment Button (inactive)
Used for service adjustment (locked for factory support).
8. Com Port
Drop-down menu to enable selection of the RS-232 communication port of the 7165.
Has a “last connection” recall setting so it remembers the previously used com port.
9. Connect/Disconnect Button
Press to connect or disconnect the 7165 communication.
10. Exit Button
Exits and closes the application.
1
2
3
4
5
6
7
8
9
10

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7.3 Setting and Changing a Pressure Setpoint
To set (or change) a pressure double click on the Set Pressure input box.
A pop up screen will show and you can enter the new set pressure. Enter the desired value
and press the “Change” button.
Note: The input will only accept 1 decimal place (ie 1.1, 20.1, 35.5). If more than one
decimal place is entered, the setting will return to it’s previous value upon change.
You can now press the “Control” button to output the set pressure.
Note: If you change the set pressure whilst the 7165 is already in control mode, the output pressure will instantly
adjust to the new setting. Be careful not to over-pressurize the controller or unit receiving pressure.
Double
click

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7.4 Setting and Changing a Hysteresis Value
The same method as pressure setting is used to set the hysteresis. Note that this is a value
and not a setpoint, so typically it may be a setting such as 1, 2, 3, 4 bar. It is the amount of
pressure you let the 7165 drop by before the pump re-starts to pressurize to the setpoint.
To set a hysteresis value double click on the Hysteresis input box.
A pop up screen will show and you can enter the new set pressure. Enter the desired value
and press the “Change” button.
Note: The input will only accept 1 decimal place (ie 1.0, 2.5, 4.5). If more than one decimal
place is entered, the setting will return to it’s previous value upon change.
The hysteresis setting will be applied immediately and shown on the display.
Double
click