Luzchem LZC-4V b Photoreactor Owner’s Manual
- September 20, 2024
- Luzchem
Table of Contents
Luzchem LZC-4V b Photoreactor
Specifications:
- Product : Luzchem Photoreactors
- Exposure tools for UV and visible irradiation
- Models : LZC-1b, LZC-4 b, LZC-4L b, LZC-4V b, LZC-4X b, LZC-5 b, LZC-ORG b, LZC-EDU b
Product Information:
- Luzchem Photoreactors are designed for UV and visible irradiation applications. They come in various models to suit different needs, with features such as lamp controls, safety interlock, and options for power meter, stirrer, carousel, turntable drive motor, shut-down timer, and more.
- The photoreactors are equipped with safety measures including UV-limiting safety glasses for eye protection. Users are advised to wear the provided glasses when operating the device.
Product Usage Instructions
-
Lamp Controls:
The lamp controls allow users to adjust the intensity of UV and visible light emission. Follow the user manual for specific instructions on operating the lamp controls. -
Safety Interlock:
Ensure the safety interlock is engaged before using the photoreactor to prevent accidents. Refer to the manual for details on how to activate the safety interlock. -
Lamp Emission Spectra:
Learn how to recognize the various fluorescent lamps used in the photoreactor for optimal performance. The manual provides guidance on lamp replacement when needed. -
Options:
- Power Meter: Monitor the power output of the photoreactor for accurate readings.
- Recessed Magnetic Stirrer: Optional feature for stirring applications.
- Carousel and Turntable Drive Motor: Enhance the functionality of the photoreactor with motorized drive options.
- Shut-Down Timer: Set timers for automatic shutdown as needed.
READ BEFORE USING THE INSTRUMENT
- DISCONNECT POWER BEFORE REMOVING THE TOP OR BOTTOM COVER
- Everyday use does not require the user to remove the bottom or top covers. See the service section for more information.
VENTILATION SYSTEM
- The ventilation system in Luzchem photoreactors limits temperature increases in the main chamber to 3-4ºC above room temperature. A safe exhaust is standard in all photoreactors except the LZC-EDU and provides a safe exhaust for any ozone generated in the chamber. The exhaust tubing needs to be connected to a proper exhaust, such as a fume hood, whenever using UVC lamps (also called germicidal or 254 nm lamps) or when there could be any possible corrosive or irritant gases.
- The unit’s air intake is at the bottom. Four rubber feet provide space for ventilation: do not remove them or block the bottom air intake.
- The LZC-ICH2 model incorporates an upgraded ventilation system, which includes temperature control and additional fans to homogenize the chamber temperature.
EYE PROTECTION REQUIRED
Luzchem suggests eye protection at all times with its devices. Luzchem
supplies all LZC and CCP photoreactors with UV-limiting safety glasses. Users
must wear the provided “yellow” glasses when opening the door while the lamps
are on. The transmission spectrum is below Figure 1 . Dark green light-
limiting safety glasses for LED and other bright light sources are also
available from Luzchem. These glasses cut out UV light and cut out >95% of
visible radiation.
Luzchem recommends that the user switch off lamps before opening the door. The photoreactor control panel (Figure 2, below) includes a blue LED indicator that illuminates when the lamps are on.
SAFETY INTERLOCK
- Luzchem photoreactors include a safety interlock which turns off the lamps to protect the user any time the door is opened. Once the door is closed, the lamps will automatically reignite.
- In all models other than the LZC-EDU, the safety interlock can be overridden by using the key at the back of the unit, but this is not recommended. There is no override in the LZC-EDU.
- For details on the safety interlock and bypass, please refer to section 2.1.
SKIN PROTECTION RECOMMENDED
Avoid skin exposure of more than 5 seconds by switching off lamps or wearing
proper clothing to cover exposed areas. The typical intensity within the
chamber is 0.3 mW/cm2 per lamp used.
DO NOT USE LIQUID SAMPLES IN OPEN CONTAINERS
Luzchem recommends that liquid samples in the chamber use closed containers
but provide means to release any pressure buildup.
IN CASE OF SPILLS
- Unplug unit. Call safety personnel at your institution for instructions.
- Clean following procedures for specific chemical composition and properties of spilled substance.
- Before attempting to restart the unit, check electrical components. Call your local electrical authority for inspection and approval.
LUZCHEM UV/Vis PHOTOREACTORS
Models:
This information applies to Photoreactor’s models LZC-1b, LZC-4 b, LZC-5 b,
EDU b, ORG b and LZC-ICH2 b and the various options available for them.
Configurations:
Power Requirements:
- All photoreactors require a grounded outlet, 110/220 Volt and 50/60Hz.
- Each unit requires a single 250 Volt, 3 or 6 Amp slow blow fuse (depending on model).
- Luzchem attempts to ship its photoreactors with a country-specific grounded power cord unless otherwise specified at purchase.
GENERAL INFORMATION
- Luzchem photoreactor’s enclosed irradiation chambers are approximately 32 x 33 x 21 cm (W x D x H; approximately 12 x 12 x 8.5 inches; see Figure 4).
- Lamp positions are specific to the model of the Photoreactor purchased
- The Photoreactor’s design accommodates liquid and solid samples, with the ability to easily change irradiation parameters. Photoreactor lamps can be turned on/off in various combinations using lamp “banks.” The chamber temperature regulates approximately three degrees Celsius above room temperature regardless of top or side lamp exposure.
- Turn lamps off or wear opaque gloves to minimize skin exposure while introducing or removing samples.
- Eye protection is required. Each Photoreactor package includes a set of safety glasses. Displayed in Figure 1 is the transmission spectrum. Additional goggles (LZC-SG) are available from Luzchem.
- Luzchem also carries dark-green safety glasses (Part number LED-SG) designed for use with intense visible light sources, such as xenon lamps and many LED lamps. The glasses cut UV and >95% of visible light. Contact Luzchem for more information or to
- order.
Lamp controls
The lamps in the chamber are controlled by two or four switches on the
photoreactor control panel, depending on the photoreactor model. In LZC-4
photoreactors (Figure 5), banks A and B control the side lamps, and banks C
and D the top lamps.
Lamp pattern by photoreactor model
LZC-1 (Top lamps only) A B A B B A B A| LZC-EDU (Top and side) A: Top lamps
B: Side lamps
---|---
LZC-4, 4L, 4V, 4X (Top and side) C D C D C D
A B
B A
A B
B A
| LZC- ICH2
C D C D D C D C B B
A A
B B
B B
LZC-5 (Side lamps only) A B
B A
A B
B A
| LZC-ORG (Side lamps only) A B
B A
A B
B A
A B
Safety Interlock
- All Photoreactors have a door safety interlock that turns off the lamps to protect the user any time the user opens the door. If the user opens the door, the LAMPS ON indicator LED will stop illuminating, and the red DOOR OPEN indicator LED (refer to Figure 2) will light up.
- A bypass for the safety interlock can be found on the rear panel, although not recommended.
- Inserting and rotating the interlock bypass key allows the lamps to remain powered if the user opens the door. Once in the override position, the key is no longer removable. The user must rotate the key counterclockwise to remove the key again.
LAMP EMISSION SPECTRA
- Turn on the lamps approximately 5 minutes before the experiment begins. Luzchem recommends that the user switches UV lamps and LZC-LED lamp banks off before opening the chamber door. It may prove convenient to use a tray to place and remove
- samples with minimal skin exposure or to minimize time when the lamps are off and may cool down between warm-up and experiment.
- Luzchem provides detailed information on its lamps; see below for the emission spectra for several available lamp types.
- Go to www.luzchem.com and click on Exposure Standards for further information.
It is possible to use germicidal or 254 nm lamps in any model except in the educational model, LZC-EDU, which does not have the exhaust system required for ozone generated by UVC lamps.
How to recognize the various fluorescent lamps:
- LZC-VIS: Visible lamps have a white phosphor, usually labelled “cool-white.”
- LZC-420: 420nm centred lamps have a white phosphor and include Luzchem’s logo.
- LZC-UVA-367: UVA (367nm) lamps have a dark -blue phosphor.Ushio brand F8T5BLB.
- LZC-UVB: UVB lamps have a white phosphor and a triangle marked UV- B.
- LZC-UVC: UVC lamps have transparent fused silica tubing. They are the only transparent fluorescent lamps sold by Luzchem.
Luzchem also offers LED lamps compatible with LZC-series photoreactors and EXPO-02 panels. Below is a table listing the available LZC-LED lamp types.
| Part Number: | Colour | Colour temp a (K) or |
|---|---|---|
| Peak wavelength b (nm) | ||
| LZC-LCW | Cool White | 6000 K |
| LZC-LWW | Warm White | 3000 K |
| LZC-LBL | Blue | 456 nm |
| LZC-LGR | Green | 519 nm |
| LZC-LAM | Amber | 591 nm |
| LZC-LRD | Red | 637 nm |
aColour temperature +/- 200 K. bPeak wavelength +/- 2 nm.
How to replace lamps:
To uninstall lamps, rotate the tube 90 degrees and remove it from lamp
sockets. To install lamps, insert the lamp into the front, and rear sockets
until all four electrodes (pins) fit into the corresponding socket and rotate
90 degrees.
OPTIONS
Power meter
- A Visible/UVA power meter is available for Luzchem photoreactors. Some packages, such as the LZC-4V, include this option.
- Luzchem recommends annual inspection and recalibration of the power meter. Some compliance applications may require this option.
Connecting the power meter
To use the power meter, connect the detector head (sensor) inside the
chamber (back left), and install the supplied cable to the handheld and the
front panel (pictured right).
Power Meter Readings
- The Power meter reads in lux units (illuminance) and has scaling options from lux to x100lux. Power meter calibrations are only valid with the sensor and handheld listed on the calibration certificate supplied.
- The light intensity varies in different locations in the chamber; monitor the power at the locations where you will place your samples. All power meter calibrations are guaranteed to have ±10% error.
Visible Measurement
Luzchem verifies the factory illuminance readout before shipment in the
x100 scale. Sometimes, a calibration certificate for LZC-VIS lamps is provided
at purchase, indicating a correction factor. Luzchem only guarantees the
validity of the factory readout or correction factor for 12 months from
purchasing the power meter. Place the detector where in the sample’s intended
spot in the chamber. Close the door, record the x100 value indicated on the
handheld, and apply the calibration factor if applicable. Remove the detector
and insert the sample to begin the experiment.
Refer to the instructions on the calibration certificate for applying the calibration factor
Narrow-band Visible Measurement
LZC-VIS lamp calibrations are not valid with narrow-band visible lamps such as
LZC-420 and LZC-LED series lamps. Calibrations for these lamps are available
on request.
UVA Measurement
- Place the detector where in the sample’s intended spot in the chamber. Close the door, multiply the readout in the x1 lux scale indicated on the handheld by the calibration factor and record. Remove the detector and insert the sample to begin the experiment.
- Refer to the instructions on the calibration certificate for further information on applying the calibration factor.
- This calibration is specific to the LZC-UVA-367 lamps supplied.
Recessed Magnetic Stirrer
(LZC-D) Located centrally and approximately three inches from the front of the
chamber, a magnetically coupled drive below the photoreactor floor allows for
magnetic mixing. (see Figure 13). A rotary switch knob allows the user to
control the speed from the front panel.
Carousel and turntable drive motor
(LZC-A) Luzchem’s installed carousel or turntables mate to a recessed motor
drive linkage (see Figure 14). A rotary switch knob allows the user to control
the rotation speed from the front panel.
Luzchem has fused silica test tubes available for use with the installed or
portable carousel. Quartz test tubes are available in sets of eight or fifty.
Pyrex test tubes are also available in sets of sixteen (P-tubes).
Installing Motor Drive Option
The sample carousel or turntable is easily installed and removed. To install
it, place the axle on the chamber access hole (see Figure 15) and align it
vertically over the hole. Then lower the axle and rotate gently until the
locking pin engages the drive. Insertion should not require force.
Portable carousel and turntable
Portable carousels and turntables are available from Luzchem. These
accessories have an internal rechargeable battery and fit in all Luzchem
Photoreactors.
- Power ON: Touch any key
- R/L switches between clockwise and conterclockwise
- SR speed regulation.
- ASA : Angle regulation
- Micro USB : Used for charging. 5V DC IN
- Power Off : long press any keys for 3 seconds
- LED indicator : Red when charging and green when fully charged
Shut down timer
Standard on all photoreactors, the 3-position power switch controls the timer
by selecting TIMER mode. Time-out is available from 1 to 99 minutes.
Using the Shut-down timer
- Set “Power” to the OFF or middle switch position.
- Use the Shift key (4) to select a digit to be changed. The selected digit will flash. Use the Up key (5) to increase the selected digit to
- Repeat until the desired time displays on the lower screen.
- Pre-select the desired functions (lamp selection, carousel or stirrer) concurrently with the timer.
- Set the power switch to the ‘timer’ position. The Photoreactor will power on, including the fan and selected functions. The upper screen will display the set time and begin to count down. The Run LED (1) will begin to flash, and the Out LED (2) will illuminate green until the timer has elapsed.
- Pressing the RST key (6) while the timer is counting down will restart the countdown from the set time. Be aware that the RST key will begin the countdown even when the front panel switch is in the OFF position.
- Pressing the PAU key (3) while the timer is counting down will halt the countdown until the button is released. Note that this will not power the lamps off
- To repeat exposures after the timer has elapsed: Set the front panel power switch to the off position and back to ‘timer’ to start the Photoreactor again.
- To abort a countdown: Move the back panel power switch to the off position.
NOTE : If the door interlock override key is in the vertical position,
the timer will pause when the user opens the door, and the lamps will power
off. When the door is closed, the timer will resume counting down.
If the door interlock override key is horizontal, the timer will not pause,
and the lamps will remain on.
Optional temperature monitor
This digital monitor reads the ventilation air temperature as it exits the
irradiation chamber. The display can be factory set to Celsius or Fahrenheit.
Unless otherwise requested, the factory setting is Celsius.
Temperature control
The LZC-ICH2 model include temperature control as part of the standard
configuration. Temperature is only available with the LZC-ICH2 or in custom
builds upon request for a fee. The minimum available temperature setting is
3-4 degrees above room temperature and up to 50°C. A front panel module allows
for setting and monitoring the temperature. The temperature control system
uses exhaust fan actuation, heat generated by the lamps and a 190W heating
system to regulate the temperature within the chamber. Information on the
temperature module is described separately in information from the third-party
supplier of this unit and included with the manual of photoreactors that have
the temperature control option.
Basic guidelines to set the temperature
Use the up and down arrows (↑↓) to choose the desired temperature (Holding the
arrow will modify the set value faster).
SERVICE
DISCONNECT POWER BEFORE REMOVING THE TOP OR BOTTOM COVER
Everyday use should not require the end user to remove the bottom panel or top
covers. See the service section for more information. The bottom cover
(supported by seven screws) provides access to switches and motors for the
carousel/turntable drive (optional) and the magnetic stirrer (optional). The
inverted-U-shaped top cover, locked in place by six screws on the back and 4
(2 of which partly support the bottom) on the sides, provides access to lamp
ballasts.
DO NOT OVERTIGHTEN SCREWS
Installing the exhaust hose
The exhaust tubing needs to be connected to a proper exhaust, such as a fume
hood, whenever using UVC lamps (also called germicidal or 254 nm lamps) or
when there could be any possible corrosive or irritant gases.
Installation of the exhaust hose/tubing also prevents the risk of injury from
UV light escaping through the photoreactor exhaust port.
To install the exhaust hose:
- Connect the exhaust hose to the Photoreactor:
- Slide the hose clamp provide over the exhaust hose first.
- Slide the hose with a clamp over the exhaust port in the back panel of the Photoreactor. Tighten the clamp moderately using a slot screwdriver.
The other end of the exhaust hose must connect to an appropriate exhaust system, such as a fume hood:
- A minimum of bends and curves as possible.
- Install via the shortest path possible.
- Exhausting over distances of more than 8 feet or with multiple bends may require a booster fan.
Terms and Conditions of Sale
- Prices and Payment. The normal form of payment is by cheque or wire transfer once the products ordered are ready for shipment. Luzchem will provide the buyer will copies of the final invoice and shipping documents, and wait for confirmation of payment from our bank before releasing the shipment. Any other arrangements must be pre-approved by Luzchem. Seller’s prices do not include amounts for any sales, use, excise, or similar taxes. The Seller’s prices also do not include any duties or import taxes levied. Buyer shall pay, in addition to Seller’s prices, the amount of any present or future such tax applicable to the sale or use of the goods or, in lieu of such payment, provide Seller with a tax exemption certificate acceptable to the taxing authorities. Failure to pay by date agreed upon shall result in late payment fees.
- Shipment and Delivery. Unless specified otherwise, all North American shipments will be insured at Seller’s expense, for the purchase price of the goods. Buyer shall pay transportation and handling expenses. Delivery to carrier shall constitute passage of title to Buyer irrespective of arrangements for transportation or insurance charges. Risk of loss shall pass to Buyer concurrently with passage of title. Luzchem products are shipped in reinforced cardboard boxes, and are not seaworthy containers. If Buyer requests special packaging, Seller shall provide an estimate for cost and lead time for Buyer’s consideration. Luzchem normally ships using FedEx or TNT. Shipping charges will be based on the rate provided by the courier company. Buyers wishing to use other means of shipment may be subject to an administration charge.
- Shortage. Buyer must inspect goods promptly upon receipt and must submit any claim for shortage within thirty days after receipt or any such claim shall be waived.
- Limited Warranty. Seller warrants the goods against defects in workmanship or materials under normal use, and for the purpose for which they were designed, for one year from date of shipment, subject to the following limitations, provisions and exceptions:
- Seller’s sole responsibility shall be, at its option, to repair or replace free of charge any parts or equipment found to be defective. It is the buyer’s responsibility to arrange the return the equipment and cover the cost of shipping to Luzchem for any warranty work. Luzchem will accept the cost of return shipping to the buyer if the equipment was found to be defective and under warranty otherwise return shipping is the buyer’s responsibility. Warranty repairs do not include the cost of a site visit.
- Goods repaired and parts replaced during the warranty period shall be in warranty for the remainder of the original warranty period.
- Any physical damage occurring during transport must be reported within thirty (30) days of the equipment clearing customs.
- Hardware manufactured by others which is expressly specified by Buyer to be supplied with Seller’s goods under this contract is warranted in accordance with the published warranty of its manufacturer, to the extent Seller has the right to such warranty.
- Hardware, electronics, quartz or glass equipment manufactured by others which are integrated in the original design of the system will be subject to the warranty of the original manufacturer.
- Lamps have a 60-day warranty unless a longer manufacturer warranty applies.
- THE FOREGOING WARRANTIES AND REMEDIES ARE EXCLUSIVE AND EXPRESSLY IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED; AND SELLER MAKES NO WARRANTY, EXPRESS OR IMPLIED, AS TO THE FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OF THE GOODS.
- Product Support.
- Seller’s policy is that functionally interchangeable replacement parts will be available during the time a standard product is offered for sale. In addition, either repair capability or functionally equivalent parts will be available for at least five years from the date of sale.
- No guarantee of parts availability, repair capability, or functionally equivalent goods is offered for goods manufactured by others and supplied with Seller’s goods at Buyer’s express request.
- Limitation of Liability. Seller will, at Buyer’s request, submit Certificates of Insurance showing limits of coverage. Seller agrees to indemnify and save harmless Buyer only against liability imposed on Buyer by law with respect to bodily injury or property damage to the extent such liability results from Seller’s performance under this contract. Seller shall have no liability for any loss or damage resulting from Buyer’s or third parties negligence, misuse, or misapplication of the goods furnished. In no event shall Seller be liable for any consequential damages of any nature whatsoever or any loss of income or profits. Seller shall have no liability with respect to bodily injury or property damage caused by defects in equipment manufactured by other suppliers, who carry their own liability insurance, and which was delivered as part of the original system designed by Seller.
- Force majeure. Seller shall not be liable for any default in the performance of any obligation contained in, or related to, this contract, to the extent that performance is affected by any cause or causes reasonably beyond the control of Seller, including but not limited to acts of God, any law, rule, regulation of or any act or request of any governmental authority or agency, failure of any contractor or supplier, fire, storm, flood, earthquake, explosion, accidents, acts of the public enemy, riot, labor dispute, labor or material shortage, and/or delays in transportation.
- Cancellation by Buyer. If Buyer cancels this agreement or refuses delivery of the goods, Buyer shall be liable for and shall pay to Seller all expenses incurred or committed to by Seller prior to cancellation and Seller’s profit to the same extent as if Buyer had accepted delivery of the finished goods.
- Complete Agreement. These terms and conditions, and the documents to which they are attached, constitute the entire agreement between the parties regarding the sale and purchase of the goods and/or services to be performed and no other promises or agreements shall be of any force or effect unless put in writing and agreed to by both parties. This agreement may be modified only in writing executed by both parties. THE VALIDITY, INTERPRETATION, AND PERFORMANCE OF THIS AGREEMENT SHALL BE GOVERNED BY THE LAWS OF THE PROVINCE OF ONTARIO, CANADA.
- Storage. Buyer agrees to pay Seller a storage charge of 1% of the total purchase price per month, or prorated portion thereof for a part of a month, for goods not authorized for shipment by Buyer within fourteen days following either the specified delivery date or the date Buyer is notified that same are ready for shipment, whichever is later.
- Returns. Software, lamps, and other consumables are not returnable. All other products must be shipped back to Seller, at Buyer’s expense, within 30 days of receipt. Buyer is subject to a 25% restocking fee on all returns. In the occurrence of damage, Seller will then assess merchandise and discuss with Buyer further actions.
- Software. If software is provided hereunder, Buyer is granted a nonexclusive license only for Buyer’s use of Seller’s software on the system for or with which said software was provided. Such license and programs or materials to which it applies may not be assigned, sublicensed, or otherwise transferred by Buyer without prior written consent of Seller. Software supplied by Seller which is licensed by Seller by third parties shall be provided to Buyer subject to terms of an applicable sublicense agreement. All software supplied hereunder remains the property of Seller (or other licensor if applicable). Software that is developed to buyer’s specific needs will be provided by a supplier authorized by seller, and will be licensed and warranted according to same supplier’s specifications.
- Assignment. These terms shall be binding upon and shall accrue to the benefit of the parts hereto and their respective assigns and successors in interest; provided, however, neither party may assign this agreement, or any of its interests herein, without the prior written consent of the other party.
FAQ
Q: Do I need to wear eye protection while using the Luzchem
Photoreactors?
A: Yes, Luzchem recommends wearing UV-limiting safety glasses provided with
the device at all times, especially when the lamps are on.