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Hi Dave,

One happy customer, thanks for the assistance with this.

Trevor

Morning Robyn,
 
I have just received the new battery in perfect order and would like to thank you for your quick response in this matter. It is in these situations that make the difference in who you choose to deal with. 
Thank you.
 
Kind Regards 
 
Alan Tapley 

Alan Tapley

Dear Sales,

Equipment arrived on the vessel at berth as arranged, thank you so much for your assistance.

Jaqueline Bernard

Hi Emma,

Thank you very much for all your help - excellent service!

Fiona McGregor

Lauren

Thanks for all your help with this last night we appreciate the service you provided to us.

Kind Regards

Allan

Thankyou so much for your assistance, I don't know how you managed to source this equipment, but I'm very glad you did. All fitted and working now!!

Med vennlig hilsen

K Larsen

Hi Dave,

Many thanks for your swift reply & valued advise. (great service)

Regards.

Nick

Ms Deborah

We are extremely grateful and appreciative of yours and your team’s customer oriented attitude and behavior.

We look forward to further business dealings with your organization.

Tauquir

Thank you for the support and service you provide. I look forward to working with you guys again in the new year!

Matthew

Hi Emma

Many thanks for your quick response. Just discovered your website today but it looks excellent!

Nicola Allan

Hello again,

Equipment arrived on MT as arranged.......amazing.

Marios Georgiades

Excellent Thanks. 

We are really happy with acorn since we started using you guys, the staff have been excellent. You have delivered items and me and my colleagues have collected. Thankyou for your help.

Regards Richard (Dalby Fire Group)

Richard

Bless you Robyn, thank you so very much, your service is absolutely amazing!!
 
So many thanks 
 
Heather

Heather

Good Morning Emma,

I must say you are the best.  Normally I do not receive such fast replies from overseas suppliers, and that too complete with courier charges.

Have a nice day.

 

Parvez

Ladies,

Thanks for all your help and excellent customer service! :-)

Kind Regards,

Ainsley Cooper

Aleks,

Thank you all for your support on this project. We’ve worked well together in my opinion and would hope that we can do so again in the future.

Tim

Dear Charlotte,

I just wanted to say thank you for the utter super swift service that I received from Acorn Fire & Security regarding my recent order.

Well done and regards,

Ian Stone

Dear Sirs,

Just a line to thank you for the prompt delivery of my JSB terminators which arrived at 09:00 today.

Regards.

Stuart Willcock

Hello Aleks and Dave

Many thanks firstly for the quick response.

Once again many thanks for such a great turnaround.

Dave Lewis

Robyn,

You my dear are an angel sent from the heavens of wonderfulness!

Thanks a lot for your help its appreciated!

Luke B

We enjoy one of the best supplier relationships with Acorn due to the professionalism & quick response times allied with an enjoyable friendly nature of all the staff.

Paul

Hi Dave,

Thank you for sending the information on the detectors I have passed this on to our client.

Thank you also for your continued help and assistance it is much appreciated.

Sam

Ashley,

many thanks for your prompt action, have a great weekend!

Barry

Thanks to Lauren for helping resolve a problem.

She was helpful, efficient, and above all pleasant.

A real asset.

Catriona

Hi Lauren,

The below parts have just arrived! That was very quick and efficient!

Thankyou for organising that

Harriet

To all at Acorn,

On behalf of myself, and our Service staff, thankyou for your continued support, and thankyou for going the extra mile last week; our Client is now extremely satisfied!

Patrick

Hi Emma,

Thank you for your awesome work!

William J

Both Jess & Amelia are a credit to the company and I certainly will be using them as examples of what customer service via the phone should be like.

Lee

Dave,

Many thanks to you and Aleks it is a great help.

Regards

Martyn

Evening Dave,

We were very appreciative of Martin’s assistance during our time in Ancona.

As he would have mentioned, timing was tight but he got the job done and we got through our surveys.

Thanks to you and your team.

Captain Nicholas Smith

Hope you have all have a wonderful Christmas and thank you to all the team for your excellent service and the help provided on this project.

Dan

Acorn Fire & Security have vastly improved our business, through excellent customer service from point of order, through to rapid delivery to our Engineers in the field.

Steven Troy

Hello

Perfect service, thank you

Regards

Rory

Again many thanks for your help and assistance.

System now fully back on line.

Andrew Kelly

Many thanks as always for the quality and speed of the service!

Shaun

Aleks,

dziękuję za doskonałą obsługę

systemu przeciwpozarowego i za wspaniale wsparcie.

Agnieszka

Many thanks to you and your wonderful staff for your continued support throughout the year.

Much appreciated.

Dave

Good morning Emma,

Order has been well received yesterday, I can say that we are very happy with your service.

Best regards,

Denmark

Thanks for all the help

Lauren and Amelia - you are STARS.

Andy

Amelia - thank you so much for your reply.

Wonderful, knowledgeable customer service - a rarity these days and you even supplied me with a link to the product.

Jonathan Farquhar

Dear Lauren, very good and prompt services, thanks!

Wishing you have a Merry Christmas and a Happy New Year 2015!

Alex

We have just purchased a SOLO kit from yourselves and I have say we have been very impressed with the service and support provided – thank you 

Darren

Thanks Lauren

I wish all suppliers got back to me as quickly as you do!

Dani Webster

Cheers Dave you're a star

Kind Regards

Neil

Lauren,

Just a quick mail to say what a brilliant service your team offer.

Chris

Brilliant response, had immediate information. Told me next steps. Couldn't have been more helpful. Thank you Jane.

James

Hi Dave

Just a quick note to say thanks for the advice on the replacement of the Mother board. We attended a week ago and all went smoothly, no problems since (touch wood!).

Tim

Good Afternoon,

I just wanted to provide some positive feedback on your team with specific regards to Emma Williams in Export Sales. I work for a Facilities Maintenance company that is based both in the UK and Ireland which as I’m sure you can imagine; especially in the current climate can be challenging when it comes to stock.

I first started using your site last year and since then have always been welcomed with the most efficient delivery and quick response on stock required for our FA Technician.

Nothing is ever too much trouble and I just wanted to forward this feedback on to yourselves so it was brought to your attention and more importantly to say thank you.

Kind Regards,

Ceri

Cerian Rousset

You’re the best, thanks!

Have a nice weekend.

Best regards / Met vriendelijke groet

Netherlands

Thank you so very much Emma – quite amazing to receive such a prompt and pleasant response to my enquiry.

Carol Shield

Good afternoon Lauren.

Thank you for the fast response.

As ever I am very impressed with the excellent service you offer.

Alan

Hi Dave,

The service and support from Emma and the other staff has been superb and as a new customer purchasing wise I will now be placing all orders with Acorn.

Andrew Sullivan

Thanks a lot,  we really appreciate professional work and good service.

We also wish you a Merry Christmas and Happy new year!

Nedo

You provide a great service, you have an excellent range of products and deliver on the double. 

Here in Cork, Ireland it can be difficult to get certain brands and parts of fire alarm systems. You have been a great help. So thank you.

Trevor

Dear Hannah,

After several weeks of trying to find these parts; you located part numbers, cost, availability and air freight within one day!

Nancy Johnson

Dear Hannah,

The test equipment arrived one day early, received on Tuesday; wunderbar!

Jürgen Schulz

I received and checked through my order today and everything is as it should be.

Thanks again to you and to Acorn fire and security for a great and efficient service.

Costa

Hi Sarah,

Thanks for this. I must add, your service has been first class right from the initial phone call until now & I have been extremely impressed with your company.

you seem to work very much like ourselves & provide outstanding service, which is a rarity these days.

Leighton

Dear Lauren,
 
Thank you so much and very glad to be your customer.
 
Juladit C.
 

Juladit C

Thank you for your speedy service, our order arrived this morning.

Karen

Wow,

Ashley you're like a salesman dream!!

Thanks for your help Ash.

Kindest regards,

Alex

Bless, over and above call of duty. Honestly Jess you been a little star with this one...

Regards,

Sharon

Sharon

Thanks Lauren,

it’s so nice to deal with a company who are so accommodating, it’s been a refreshing change for us!

Catherine

Hi Lauren,

Thank you very much, excellent service as usual.

Thanks

Paul

Thank you Amelia

Very much appreciated, if only all suppliers where as quick and efficient as you guys, I would be laughing!

Tony

Hi Dave
 
Thanks again for your valued advice and support.
 
Regards
 
Chris

Chris McCormick

Hi Deborah

Thank you very much for going extra mile for me. Great!

Best Regards

John

Also want to say thanks to everyone at Acorn Fire & Security for a great day.

The training was extremely helpful and a good balance of practical to theory work in the course.

We look forward to sitting in on another training course in the near future.

Phil

Truly thank you for all of your help, Emma. This process was quick and painless.

David Jackson

Dave,

Installed these today, worked a treat.

Thanks.

Andrew

Debbie

Please pass on my thanks to Lauren for sorting out my order yesterday, top class service yet again from your team.

David

Thank you Jane! A fantastic member of staff, couldn't of been more helpful. An incredible asset to your company. 

James Sutton

Dave,

Always a pleasure bud and thank you for the information it worked an absolute treat!

Have a good weekend and take care sir!

Kind Regards 

Christopher Stevenson

Christopher Stevenson

Hi Hannah,

Thank you very much for the quick turnaround, as this was a big ask in a short space of time. Please convey my appreciation to all involved.

Steve Sneddon

Thanks Charlotte.

I wish all suppliers where as efficient and quick as you guys.

Best Regards,

Peter Jackson

I had a technical question regarding removal of detector heads and my query was answered quickly with a fast to & fro response with a positive outcome. Thanks to Jane!

Dennis

Hi Marta,

Thank you for sorting this out for me.

I really appreciate your help with this.

Merry Christmas and I hope you have a Happy New Year.

Leigh

Fireclass 516.300.411FC FV411F Triple Infrared Flame Detector

Fireclass 516.300.411FC FV411F Triple Infrared Flame Detector

Fireclass

£2,305.77 Ex VAT £2,766.92 Inc VAT
Product Code: 516.300.411FC
Qty:   Add to Cart
UK Mainland Delivery £8.34 Inc VAT
£6.95 Ex VAT

Got a Question? Email or Call Us on +44 (0) 1254 207532

Fireclass 516.300.411FC FV411F Triple Infrared Flame Detector

The FV400 series uses Triple IR Solar Blind technology for flame detection. This provides a reliable and cost-effective solution in standard flame detection applications especially where there is a single hazard in the field of view. The FV400 detectors use Triple IR Solar Blind sensing technology and flame detection algorithms to provide high performance sensing capabilities for hydrocarbon fires. This includes the ability to reliably sense flames through high densities of solvent vapours and black smoke, increasing the probability of early detection with consistent high sensitivity to flame throughout the whole field of view.

They also ensure consistent detection of many different types of hydrocarbon fuels from alcohol to aviation fuel. Multiple interfaces are provided with the option of an integral CCTV camera to provide a visual means of operator verification.

Key Features

  • Triple IR solar blind sensing technology
  • Multiple Field Interfaces
  • Detection range: Up to 65 m for 0.1 m2n-heptanepan fire
  • Automatic optical path monitoring
  • Integral flame simulation and remote walk test help reduce the ongoing life time cost of the flame detection installation
  • Video verification via the integrated optional flameproof camera
  • Fast and reliable, high sensitivity flame detection with high false alarm immunity, throughout a wide field of view
  • Consistent detection of different sizes of flames from a wide range of hydrocarbon fuels such as wood cellulose, alcohol to aviation fuel (JP4 and JP5)
  • Simplifies alarm handling for remote control situations
  • Excellent false alarm immunity. Proven to be immune to common radiation sources (continuous or modulated) such as halogen lamps, lightning, X-rays, sparks, corona, welding, heaters, etc
  • Unaffected by sunlight, completely solar blind

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