推荐回答(4个)
测硫仪/电脑测硫仪/自动测硫仪常见问题及处理方法
一、测硫仪气路的气密性下降:
流量计指示应在 0.8~~1.2 之间。若气密性下降,重点应检查以下部件:气泵、流量计、玻璃管、橡胶管和气路连接。
二、测硫仪的电解池
1、电解池漏气导致气路的气密性下降。
2、电解池内的四个极片上有污垢应清洗
3、电解池内的四个极片与控制器应连接可靠。
三、测硫仪搅拌器:
搅拌棒的磁力消退,是造成搅拌失步现象的常见原因,应更换。
四、测硫仪温度控制部分
1、 A、温度一直显示 1999 ℃,表示热电偶电路未通或其内部断路。
B、温度一直不增加,但有加热电流,则表示热电偶接反。
C、温度一直显示室温,则表示热电偶连线短路。
2、温度值小于设定炉温,应有加热炉流。若炉流显示为 0.0A ,表示保险管坏,硅碳管本身内部断路或连线未接通。
3、恒温波动太大,一般为硅碳管的原因。电阻值应为 7~~8 Ω,
各个地方都检查一下
实在不行就换一个
鹤壁科力这个牌子的不错
实验注意事项: 1:氧气量的大小调节,氧气量太小会造成积碳,污染裂解炉,氧气量太大为使样品反应太充分,使其中的二氧化硫转变成三氧化硫,三氧化硫吸收荧光的能量后,无法发生能及跃迁,无法释放出荧光,使定量不准确,一般选择450ml/min 2:载气量的大小选择,载气量太大,会使样品在反应炉中,反应不充分,而且样品在经过荧光照射的封闭管中未能进行及时吸收足够的能量,氩气设定在150ml/min 3:为了保障干燥器工作正常,每次进样应该间隔1min 4:标样应保存在低温下,保质期为5个月。 5:制作曲线应该使样品的硫含量在曲线内。 6:样品分析前紫外灯至少需要45分钟方能稳定进行试验 7:关机时温度冷却至400℃以下时,才能进行别的操作 8:关机时其他电源可以关闭,但是石英管炉里风扇电源不能关,待温度降低至150以下才能全部关闭电源 仪器维护: 1:定时检查气路 2:经常检查裂解炉出口端气路中有无积碳现象,若有的话,可以在高温下通入氧气燃烧清除。 3定时清洗反应室,擦洗试剂为丙酮或乙醇
参考来源:鹤壁市天冠仪器仪表有限公司技术部
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