Welcome toChromatography equipment net China
About us | Add to Favorites | Contact us | English
The account that double FID detector chooses 6890N not to catch fire and settle
From;    Author:Stand originally

6890N, double FID detector, dot of the FID after recently is not worn, the FID in front criterion everything is normal, originally hydric parting with air flow is 40 with 450, fall air flow later for 350, can light, but nod again the following day do not wear, ignite every time now should blow toward FID at a heat ability is OK light, whether did the FID nozzle from the back need to clean excuse me, still need to change. Thank.

FID/FPD ignition problem (ignition difficulty or dot do not catch fire) have the following kinds of reasons roughly:
1, check type of hydric, air to be opposite incorrect, occasionally air feed business confused gas, the dot does not catch fire, if just changed air hydric perhaps with respect to occurrence ignition problem, can suspecting is to confuse. If use hydric generator, best hydric put rekindle of empty period of time.
2, setting of examination gas discharge, 35-40ml/min of discharge of FID general H2, air is 350-400ml/min, FPDH2 discharge 75ml/min, air is 100ml/min.
3, whether does examination post discharge pass big, configuration of type of the carrier gas on workstation, post is proper, post velocity of flow crosses congress to blow blaze of put out a fire.
4, observation end blows throughput (Makeup Flow) setting, FID general end is blown throughput and note discharge the sum to be equal to 30-35ml/min roughly, FPD end blows throughput to be 60ml/min. End blows throughput to cross congress to blow blaze of put out a fire.
5, await detector temperature to achieve the rekindle after set is worth and stabilizing period of time. When necessary the canal of plastic waste gas of take out FPD.
6, examination post has joined, flat.
7, shut end to blow air when necessary, after awaiting blaze to stabilize, open again.
8, examination workstation ignition is compensated (Lit Offset) setting, general setting is 2.0PA, cost of the setting is too big and actual base line is low, meeting ignition calls the police.
9, bedspring of lever of examination FID signal whether with collect extremely the contact is close together.
10, clean FID nozzle.
11, open when necessary hydric with air, with manual ignition, whether does observation catch fire, if affirm,output without signal, bedspring of lever of examination FID signal whether with collect extremely the contact is close together. Affirm connection is close, still do not have signal, may be FID/FPD hardware breakdown.