Oko CO2-UNIT-BL User manual

1
CO2-UNIT-BL
Gas Controller
Manual
IST1140_REV02
SV 2.3.8.2

2
Index
1PREFACE .....................................................................................................................................................................................3
2SYMBOL DESCRIPTION ..........................................................................................................................................................4
SYMBOLS USED IN THIS MANUAL...............................................................................................................................................................4
SYMBOLS ON THE PRODUCT LABEL ...........................................................................................................................................................4
3SAFETY NOTES..........................................................................................................................................................................5
4SUPPLIED EQUIPMENT..........................................................................................................................................................7
5NOT SUPPLIED EQUIPMENT ................................................................................................................................................7
6OPTIONAL EQUIPMENT.........................................................................................................................................................8
7EQUIPMENT DESCRIPTION ..................................................................................................................................................9
8INSTALLATION ...................................................................................................................................................................... 11
CO2-UNIT-BL. INSTALLATION GUIDE ................................................................................................................................................11
CO2-UNIT-BL. SET UP THE SYSTEM AND TURN THE UNIT ON......................................................................................................14
HOW TO ASSEMBLE CO2-UNIT-BL WITH A TEMPERATURE UNIT.................................................................................................15
9USER INTERFACE .................................................................................................................................................................. 16
HOME PAGE................................................................................................................................................................................................16
9.1.1 How to enter the set point ......................................................................................................................................................16
9.1.2 Controller Status: colours led and meaning ....................................................................................................................17
SETTINGS....................................................................................................................................................................................................18
9.2.1 Gas......................................................................................................................................................................................................18
9.2.1.1 Air Source............................................................................................................................................................................................................18
9.2.1.2 Calibrations........................................................................................................................................................................................................ 19
9.2.1.2.1 Offset (with exthernal meter).............................................................................................................................................................20
9.2.1.2.2 Sensors (with calibration gas)........................................................................................................................................................... 22
9.2.1.2.2.1 View ......................................................................................................................................................................................................23
9.2.1.2.2.2 Span Settings .................................................................................................................................................................................... 23
9.2.1.2.2.3 Factory Reset ....................................................................................................................................................................................23
9.2.1.2.2.4 Start Span........................................................................................................................................................................................... 24
9.2.1.2.2.5 Start Zero............................................................................................................................................................................................24
9.2.1.2.3 Factory Reset.............................................................................................................................................................................................25
9.2.1.3 Flowrates............................................................................................................................................................................................................. 26
9.2.1.4 Gas cycles............................................................................................................................................................................................................. 27
9.2.1.5 Status ....................................................................................................................................................................................................................29
9.2.1.6 Digital Input.......................................................................................................................................................................................................29
9.2.2 Touch Screen configuration ...................................................................................................................................................30
9.2.2.1 Touch Screen Options..................................................................................................................................................................................... 30
9.2.2.2 Touch Screen Brightness ..............................................................................................................................................................................31
9.2.2.3 Touch Screen Visual Effects –icon and glance mode.......................................................................................................................31
9.2.2.4 Date & Time........................................................................................................................................................................................................ 32
9.2.2.5 Alarms...................................................................................................................................................................................................................33
9.2.2.6 Data Logging .....................................................................................................................................................................................................34
OVERVIEW..................................................................................................................................................................................................38
ICON AND GLANCE MODE VIEW.............................................................................................................................................................38
INFO PAGE ..................................................................................................................................................................................................38
10 CLEANING & MAINTENANCE......................................................................................................................................... 40
11 SUPPORT ............................................................................................................................................................................. 41
12 TECHNICAL SPECIFICATIONS ....................................................................................................................................... 42
13 TROUBLESHOOTING........................................................................................................................................................ 43
14 FIGURE LIST........................................................................................................................................................................ 44
15 MANUAL REVISION TABLE ............................................................................................................................................ 46

3
1Preface
The CO2-UNIT-BL is a Digital CO2Controller that mixes CO2and Air to the desired concentration in the
range 0-18%. It connects to any Bold Line T controller and can be operated through the same intuitive touch screen
interface, OKO-TOUCH.
The CO2-UNIT-BL features a long life Non Dispersive InfraRed (NDIR) dual wave length detector to
ensure a high accuracy on CO2 concentration and a flow rate sensor to regulate output flow rate.
The CO2-UNIT-BL is compatible with Okolab Active Humidity Controller to control output gas Relative
Humidity and with Okolab air pump OKO-PUMP-BL, which enables to use background air as a convenient
alternative to compressed air.
The CO2-UNIT-BL is operated via the OKO-TOUCH touch screen control panel (to be ordered separately).
OKO-TOUCH features on-board memory for data logging and mini-USB port for data download.
In addition data logging is possible via SMART-BOX, via DATA-LOG Okolab software and via following
third-party Imaging software: LASX 2.0, NIS-Elements, SlideBook, MetaMorph and MicroManager. Macro for ZEN
Black software is available upon request.
Okolab Bold Line controllers are also capable to receive TTL input (requires to order separately TTL-
CABLE).

4
2Symbol description
This paragraph describes the symbols used in the manual and on the product label.
Symbols used in this manual
The following symbols identify important information to note:
CAUTION or WARNING: this symbol warns you about the risk of electrical shock.
CAUTION or WARNING or IMPORTANT: this symbol warns you of circumstances or practices that
can affect the functionality of the instrument.
Tip ►Supplies you with helpful suggestions.
Note ►Supplies you with important information to successfully setup and use the instrument.
Symbols on the product label
CE MARKING: this symbol indicates product compliance with EU legislation.
PRODUCT DISPOSAL: this symbol indicates that this product must not be disposed as urban solid
waste.
This symbol indicates the product production date.
This symbol indicates the manufacturer data.
This symbol warns you to read the user manual before starting the device.
This symbol indicates the protection degree against ingress of solids or liquids inside the product.
IP 30

5
3Safety Notes
In order to achieve maximum performance and to ensure proper operation of your new equipment, please
read carefully the following safety notes and the instructions. If you have any question, please contact Okolab.
−The equipment must only be used as intended and as described in this Manual.
−Equipment should be operated only by technically qualified personnel.
−Do not start up the equipment if some of its parts are damaged.
−This instrument is not intended for use in locations subject to flammable or explosive gases.
−Transport the equipment with care.
−Equipment and its internal parts can be damaged by dropping and by shock.
−Not following these instructions can result in damage or breakdown of the device and its
accessories.
−The products labels can be found on the bottom panel of the Main Unit.
−Do not disassemble any part of the system.
−Do not disconnect cables while in operation.
−Do not use a volatile solvent such as paint thinner to clean the instrument because deformation
or discoloration may occur.
−Use a soft, dry cloth to remove stains from the instrument.
−Do not exceed voltage indicated in this manual and on the product label.
−Avoid excessive induction noise, static electricity and magnetic fields.
−Do not expose this instrument to rain or moisture.
−Do NOT go in close contact with or breathe any gas stream whose composition is different from
that of ambient air.
−Prevent throttling and kinking of tubing.
−Check tubing time to time for possible material usage.
−Check that all tubing is well inserted into the connectors so they cannot slip off
−This device is not designed for use for medical applications.
−Install safety valves and adequate pressure regulators on gas lines before the CO2 Controller
input connectors.
−Power cord of unit should be unplugged from electrical outlet when left unused for a long period
of time.
−PRESSURIZED GAS, secure all connections with hose clamps. Never exceed pressure limits, 1.5
Bar. Bleed all lines before disconnecting. Wear safety goggles if needed. If pressure regulators
are not within sight and reach make sure at least one shut off valve within reach.
−LOW OXYGEN ATMOSPHERES, never enter a room or enclosure which has a low oxygen
atmosphere because of severe danger of suffocation. Only operate in well- ventilated room. A
small amount for carbon dioxide gas leaks continuously out of the instrument and should never
be allowed to build up in room.

6
−VENTILATION, unit should be situated so that its location or position does not interfere with
proper ventilation. Neither the gas mixer nor stream destinations should be in poorly ventilated
areas.
−Unit should be situated away from heat sources such as open flames, radiators, heat registers,
stoves, or other appliances or processes that produce heat.
−Do not start up the equipment if the supply cable is damaged.
−Connect the equipment only to grounded mains power socket.
−Do not disconnect cables while in operation.
−Do not open the unit. Do not remove cover or back.
−Prevent metal fragments or lead wire scraps from falling inside instrument to avoid electric shock,
fire or malfunction.
−No user serviceable parts inside.
−Before starting, assemble the equipment far from electric device.
−Unit should never be used where it can fall or be pushed into water.
International caution symbol marks this device. It is important to read the “Safety Notes” before
installing, using and commissioning this device, as the notes contain important information relating
to safety and EMC. Not following these instructions can result in damage or breakdown of the device
and its accessories.
We reserve the right to make technical variations.
IN NO EVENT SHALL OKOLAB S.R.L. BE LIABLE FOR ANY DIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES OF ANY NATURE, OR LOSSES OR EXPENSES RESULTING FROM ANY DEFECTIVE PRODUCT OR THE USE
OF ANY PRODUCT.

7
4Supplied equipment
1. CO2 Controller, main box.
2. TUBE A (x2). Rigid tubes, 3m long 6mm OD each. Use TUBE A to connect the output ports of Air and Carbon
Dioxide tanks to the corresponding input ports (Air and CO2) on the rear panel of the CO2 Controller.
3. TUBE C (x1). 2m long blue rigid tube 6mm OD with attached a 4mm ID silicon transparent tube 1 m long plus
PTFE filter in the middle. Use TUBE C to connect the CO2 Controller to your device or to the humidifier, if it is
present.
4. Pressure Gauge for CO2 + regulator + assembly stirrup (x1). Install pressure gauge between the pure CO2
tank pressure regulator and the CO2 Controller input port.
5. PTFE filter (x2). One to be installed on the rear of the Unit and one spare replacement.
6. RS232 Serial cable (x1). To connect the touch screen interface (OKO-TOUCH) to the CO2-UNIT-BL.
7. 24V-DC Power Adapter (x1).
3
14 8
5
6
7
2
Figure 1. CO2 UNIT BL and OKO TOUCH - components
5NOT supplied equipment
−OKO-TOUCH (to be ordered separately), including:
1. Touch Screen Interface
2. #1 RS232 Serial cable. To connect the Touch Screen to the T-Unit

8
3. MINI-USB-OTG cable. To connect a USB pen to the OKO-TOUCH for data download.
−CO2tank with safety valve/pressure gauge regulator to accept rigid tubing 6 mm OD. Gas source must be
Standard Purity CO2 (coded as 4.5 that means 99.995 % of CO2) and humidity-free gas.
−Air tank or compressed air line with safety valve/pressure gauge regulator (degree of filtration 20 µm and
condensate drain) to accept rigid tubing 6 mm OD.
Note ►An alternative solution for Air supply is the OKO-AIR-PUMP-BL.
6Optional Equipment
It can be equipped with:
•OKO-AIR-PUMP-BL (optional) that includes:
▪TUBE B. 2 m long tube composed of 6 mm OD rigid tube (0.5 m long) connected to 4 mm ID silicon
transparent tube (0.5 m long) then connected to an hydrophobic filter 0.2 micron porous, connected
to 4mm ID silicon transparent tube 0.5 m long and then connected to 6 mm OD rigid tube (0.5 m
long). Use the TUBE B to connect the OKO-AIR-PUMP-BL to the port labeled “Air In” on the rear panel
of the CO2 Controller.
OKO-AIR-PUMP-BL
TUBE B
Figure 2. CO2 UNIT BL with OKO AIR PUMP BL
•HM-ACTIVE (optional) that includes:
▪Humidity Sensor Lid with Temperature control.
▪Humidity bottle and its Humidifier (Heated Base)
▪Heated and Insulated Tube

9
HM-ACTIVE
Figure 3. CO2 UNIT BL, OKO AIR PUMP and HM ACTIVE
•DATA LOG (Optional-to be purchased separately).Software used to log, view, and store data from PC.
It may be used to change parameters of the controllers via PC. Data can be exported in .xlsx format.
Figure 4. DATA LOG software.
•SM-BL Smart Box. To store data, to operate the controllers via web/smartphone/tablet and to allow
remote assistance for service.
7Equipment Description
A detailed description of the CO2 UNIT BL rear is provided in the following list, which refers to the pointers
in Figure 5:
4. Filter Out. To connect the PTFE filter
5. Filter In. To connect the PTFE filter
6. Gas Output
7. Power Input

10
8. OKO-AIR-PUMP-BL connector. Leave unplugged if the system is not equipped with OKO-AIR-PUMP-BL
9. HM-ACTIVE connector. To connect the HM-ACTIVE active humidity controller
10. GPIO (General Purpose Input Output) connector
11. USB connector
12. Air Push to fit Input Connector for 6 mm O.D. rigid tubing carrying air from air source
13. Pure CO2 Push to fit Input Connector for 6 mm O.D. rigid tubing
Figure 5. Gas Controller Rear Panel Overview