如何使用電熱恒溫培養箱
更新時間:2014-12-04點擊次數:2637
一、電熱恒溫培(pei)養箱的(de)正常使用條件:
⑴環境溫(wen)度:5~40℃
⑵相對濕度:≤85%
⑶除地磁(ci)場外,無其(qi)它強磁(ci)場干擾。
二(er)、操作(zuo)方法(fa):
1電熱恒(heng)溫培(pei)養箱用220V交流電源,電源插座應采用三孔(kong)安全(quan)插座,必須妥善接地,切不可將按(an)地線(xian)接到煤氣(qi)管上(shang)。
2打(da)開(kai)(kai)(kai)電源開(kai)(kai)(kai)關至“ON”位(wei)(wei)(wei)(wei)置(zhi),把設定(ding)(ding)測量(liang)開(kai)(kai)(kai)關置(zhi)于設定(ding)(ding)位(wei)(wei)(wei)(wei)置(zhi),調(diao)(diao)(diao)(diao)節(jie)調(diao)(diao)(diao)(diao)溫(wen)旋鈕至所需實(shi)(shi)驗(yan)溫(wen)度(du)(du)(du),然后打(da)回測量(liang)位(wei)(wei)(wei)(wei)置(zhi),此時(shi)加(jia)熱燈亮(liang),機器開(kai)(kai)(kai)始工作,先把溫(wen)度(du)(du)(du)微(wei)調(diao)(diao)(diao)(diao)旋鈕逆時(shi)針打(da)至zui“-”位(wei)(wei)(wei)(wei)置(zhi),待(dai)加(jia)熱接近(jin)設定(ding)(ding)溫(wen)度(du)(du)(du)時(shi),開(kai)(kai)(kai)始間(jian)歇性(xing)加(jia)熱,紅綠燈交替閃爍,恒定(ding)(ding)一段時(shi)間(jian)后,將保持某一溫(wen)度(du)(du)(du)值(zhi),根據(ju)此溫(wen)度(du)(du)(du)值(zhi)與設定(ding)(ding)值(zhi)之(zhi)間(jian)差別,調(diao)(diao)(diao)(diao)節(jie)溫(wen)度(du)(du)(du)微(wei)調(diao)(diao)(diao)(diao)電位(wei)(wei)(wei)(wei)器,一般差別越大(da),調(diao)(diao)(diao)(diao)節(jie)越大(da),微(wei)調(diao)(diao)(diao)(diao)電位(wei)(wei)(wei)(wei)器調(diao)(diao)(diao)(diao)節(jie)的(de)大(da)小是根據(ju)設定(ding)(ding)溫(wen)度(du)(du)(du)高低,箱體水(shui)量(liang),環境溫(wen)度(du)(du)(du)確定(ding)(ding),在環境溫(wen)度(du)(du)(du),設定(ding)(ding)溫(wen)度(du)(du)(du)變化不大(da)的(de)情況下(xia),下(xia)次實(shi)(shi)驗(yan)則(ze)不需再調(diao)(diao)(diao)(diao)節(jie),即保持原位(wei)(wei)(wei)(wei)置(zhi),若對實(shi)(shi)驗(yan)溫(wen)度(du)(du)(du)精度(du)(du)(du)要求較好時(shi),可調(diao)(diao)(diao)(diao)節(jie)電位(wei)(wei)(wei)(wei)器,以保證控制精度(du)(du)(du)。
3采(cai)用壁體加熱溫度均勻(yun),但(dan)*次(ci)升溫慣性較大,上沖2-5攝氏度,待15分鐘后方能穩定。