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Mine Exploration Forum

Author 4 Gas Monitors
Mr-T

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Joined: 03/03/2017
Location: Lincolnshire

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4 Gas Monitors
Posted: 12/09/2018 21:06:01
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I've searched on the forum and cannot find an up to date answer. Can anyone share a link from the forums, unless you can recommend a 4 gas monitor. Just getting into deeper territory and about time I invested in one. Thanks guys Stupid IP: 79.65.150.162
The Fresh Prince of Portreath

Joined: 05/08/2015

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4 Gas Monitors
Posted: 12/09/2018 22:57:36
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Yes. I use a BW Microclip. It is smallish and has separate sensors and the IR link enables you do do stuff with a computer, including stats as well as set alarm points and calibration intervals etc.

It is however, the most expensive piece of kit I have bought and used about 3 times and now it's out of calibration and needs a new sensor. Do you really need one?
IP: 185.216.48.130
Wormster

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Joined: 15/08/2006
Location: Top of the Mendip Hills

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4 Gas Monitors
Posted: 13/09/2018 01:20:06
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Crowcon 4 Gas best by far IMHO

(A bit like the old stella ad - "Reassuringly Expensive!!" - plus I think we have a few shares floating around from when Halma bought the company and took it public.)


--

Better to regret something you have done - than to regret something you have not done.
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christwigg

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Location: Cleveland / North Yorkshire

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4 Gas Monitors
Posted: 13/09/2018 08:06:49
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I've been using a BW Microclip for the last two years without any problems.

Probably helps that it was brand new.

In the past I had always cobbled together various old eBay ones that were constantly failing on the sensors due to their limited life. So it became a bit of a false economy.
IP: 94.3.186.168
SimonRL

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Location: North Wales

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4 Gas Monitors
Posted: 13/09/2018 08:14:59
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QRAE II 4 gas monitor, bought new to avoid issues with iffy sensors. Does what I wanted it to - which is mostly to go beep Smile

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my orders are to sit here and watch the world go by
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Mr-T

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4 Gas Monitors
Posted: 13/09/2018 20:18:28
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Thanks for the comments guys. Seems be a few common types about. IP: 92.40.249.128
Nomad

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Location: south east wales

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4 Gas Monitors
Posted: 20/09/2018 14:45:47
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only just seen this thread i am sorry to say i havent logged on for a while so a bit out of touch.
I was wondering has the art of reading a lamp gone now there are electronic devices, a good garforth in the right hands will give accurate reading of gasses. ok there could be folk that say a lamp is out of date but after years of relying on one I would put my trust in a flame before I would a microchip.
Interesting to see what others think, or am I just too old Bored
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Morlock

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4 Gas Monitors
Posted: 20/09/2018 15:31:03
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A lamp is OK but can slow progress dramatically as one needs to stop frequently to assess air quality, 4 gas warns you as you progress and continues to update you on the move.
A lamp is not much use when you stir up coal mine sludge and release H2S.
IP: 86.185.172.195
The Fresh Prince of Portreath

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4 Gas Monitors
Posted: 20/09/2018 16:45:57
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My lamp goes out at 15%.

I will go down to 11% O2 if the going is ok. I tend to draw the line at 13%, which is when a butane lighter fails. SRT is a difficult animal. I have dropped and gone up in 14% O2 It was nasty though.

This is based on a massive amount of trips with various meters.

I need to get my BW X3 reoxygened and calibrated as there are a few places that I've been and question my inbuilt sensors.

Of course, the old cavers have got the right idea (unless on a rope) proceed carefully and be aware of yourself and your surroundings.
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Wormster

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4 Gas Monitors
Posted: 20/09/2018 17:00:36
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The Fresh Prince of Portreath wrote:

Of course, the old cavers have got the right idea (unless on a rope) proceed carefully and be aware of yourself and your surroundings.


MMMM! huffy, puffy, goey slowey! Sounds like my last trip into Cuckoo Cleaves!!!!

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Better to regret something you have done - than to regret something you have not done.
IP: 143.159.96.105
Mr-T

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4 Gas Monitors
Posted: 20/09/2018 17:56:55
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My concern would be if a little inexperienced and you tried your lighter with flammable gases around Oh My God IP: 79.65.149.65
Morlock

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4 Gas Monitors
Posted: 20/09/2018 19:03:03
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A 4Gas lowered ahead of ones progress is well worth the money in this sort of situation.

http://news.bbc.co.uk/1/hi/scotland/edinburgh_and_east/7516913.stm
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Gavin

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4 Gas Monitors
Posted: 21/09/2018 18:01:56
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Our group uses both lamps and electric monitors

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GAVIN
IP: 94.196.170.154
staffordshirechina

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4 Gas Monitors
Posted: 21/09/2018 20:59:14
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Mr-T wrote:

My concern would be if a little inexperienced and you tried your lighter with flammable gases around Oh My God


Where the hell are you going that you will encounter Methane in any quantity??
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Mr-T

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4 Gas Monitors
Posted: 21/09/2018 21:21:27
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staffordshirechina wrote:

Mr-T wrote:

My concern would be if a little inexperienced and you tried your lighter with flammable gases around Oh My God


Where the hell are you going that you will encounter Methane in any quantity??


Sewers! A lighter would suffice in some underground places, would it not be (" i heard you could test for oxygen with lighters") dangerous in some cases.

I often look for petrol leaks at night under the car bonnetBig Grin
IP: 79.65.150.249
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