We calibrate once a year. We recommend to our clients to calibrate every 180 days. Calibration? We suggest it to be done every quarter.Bump test?
Theseguides on how often to calibrate your gas monitor is from OEM in the field. There's a lot of confusion out there about bump testing and calibration, and we hope that we can help address how often to calibrate portable/ fixed gas detectors. Let's dispel a few myths, and then you can contact us to create a simple and effective calibration program for your monitors.
There's no knowing what that gas detector has been subjected to since it was last calibrated unless you check it with gas yourself. Who knows where the last guy had it, what chemicals it was around, or what buttons he pressed. Unless you check it with gas, you could be putting yourself at risk.
These types of bump tests verify only that the sensor itself is responding to gas. This means if the sensor was splashed with any kind of compound that will cling to the membrane, the self bump won't be able to tell and will give you the OK, but the gas monitor still won't see gas. I've seen plenty of units with working sensors but with membranes coated in gunk, goo, or oils that block gas from getting to the sensors.
Most likely not. All calibration gas manufacturers attach an expiration date to their cylinders. This means your cheap, half-used cylinder of 4 gas most likely has expired. Always check manufacturing dates and expiration dates when using a calibration gas cylinder. Reactive gases such as hydrogen sulfide, ammonia, and chlorine react with the cylinder walls over time. I've seen hydrogen sulfide drop from 20 ppm to 6 ppm over the course of a year. get your calibration gas from a reputable supplier.
Wrong. To regulating bodies, if it's not documented, it didn't happen. If you don't have documentation of when and where the unit was calibrated, with what gas lot, and with what calibration gas, it's as if you'd never done anything.
Always maintain a bump test schedule for your monitor. If you need to pick up your monitor and go immediately on emergency calls, which come in about once a month, this means bump testing daily in the mornings to ensure the unit is functioning properly for that day. If you know in advance which days you'll be using the monitor, you can wait to bump test/calibrate the day you'll be using it, but always maintain a written or computerized log of your tests.
It means everything else I've said in this article still applies. That two-year disposable unit still needs to be bumped daily and calibrated monthly, or you don't know how well it will respond to real gas. Nothing replaces the hard test of actually exposing the detector to calibration gas.
High prices for gas detector calibrations unfortunately lead some companies to unsafe practices (like not bump testing daily or only calibrating every few months) and we'd much rather offer an affordable rate calibrate your monitors more regularly . There are many who currently in production of videos on how to calibrate every gas detector out there, starting with portable units and eventually moving to fixed gas detection calibration. Don't take this upon your self as gas dectors need to be certified by qualified personal to comply with heath and safety acts . Contact TTS and we'll have one of our technicians have your systems tested and calibrated.
We'd be glad to assist you . Click our contact us page and send us a message. We'll tell you how long the current time is for a gas monitor calibration and how much you can expect the bill to be. For normal calibration gas blends, we charge afforable rates for a calibration. If you've changed the monitor and need something special or different, it's done at a value added rate that the calibration may require.
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