KB-501x點(diǎn)型氣體探測(cè)器

1、目錄1. 概述 12. 主要技術(shù)指標(biāo)23. 外殼結(jié)構(gòu)及各部件結(jié)構(gòu)示意圖 34. 接線(xiàn)說(shuō)明55. 操作說(shuō)明75.1 一級(jí)報(bào)警點(diǎn)設(shè)置 85.2二級(jí)報(bào)警點(diǎn)設(shè)置 85.3零點(diǎn)校正85.4單點(diǎn)標(biāo)定96. 常見(jiàn)故障及解決辦法 97. 注意事項(xiàng)98. 保修與維護(hù)109. 配件10附表：檢測(cè)氣體及量程 111概述KB-501X/KB-501SG 點(diǎn)型氣體探測(cè)器是我公司生產(chǎn)的新型氣體檢測(cè)儀器，本機(jī)采用高性能催化燃燒（可燃?xì)怏w卜電化學(xué)（氧氣、有毒氣體）紅外（二氧化碳、甲烷）和 PID （VOC ）氣敏元器件和微控制器技術(shù)， 結(jié)合精良SMD工藝制造而成，具有良好的重復(fù)性和溫濕度特性、使用壽命長(zhǎng)、操作方便等優(yōu)點(diǎn)。適應(yīng)

2、于工業(yè)環(huán)境中檢測(cè)氣體濃度。KB-501X/KB-501SG 點(diǎn)型氣體探測(cè)器將空氣中指定測(cè)量氣體濃度信 號(hào)轉(zhuǎn)化為數(shù)字信號(hào)顯示，采用三線(xiàn)制420mA的電流信號(hào)輸出和四線(xiàn)制RS485總線(xiàn)輸出方式，具有傳輸距離遠(yuǎn)、抗干擾性能好等特點(diǎn)。并具有 二級(jí)聲光報(bào)警功能。KB-501X/KB-501SG 點(diǎn)型氣體探測(cè)器適用于煉油、化工、液化氣站、 燃?xì)狻撹F、鍋爐房、加油加氣站、噴漆房等使用或產(chǎn)生易燃易爆氣體 和有毒有害氣體的工業(yè)現(xiàn)場(chǎng)，進(jìn)行氣體安全檢測(cè)報(bào)警。1.1本產(chǎn)品設(shè)計(jì)、制造、檢定遵守以下國(guó)家標(biāo)準(zhǔn)：GB15322.2-2003可燃?xì)怏w探測(cè)器第2部分：測(cè)量范圍為 0100%LEL的獨(dú)立式可燃?xì)怏w探測(cè)器GB383

3、6.1-2000爆炸性氣體環(huán)境用電氣設(shè)備第1部分： 通用要求GB3836.2-2000爆炸性氣體環(huán)境用電氣設(shè)備第2部分：隔爆型“ d”GB16808-1997可燃?xì)怏w報(bào)警控制器技術(shù)要求和試驗(yàn)方法GB4208-93外殼防護(hù)等級(jí)（IP代碼）GB/T13384-92機(jī)電產(chǎn)品包裝應(yīng)用技術(shù)條件2主要技術(shù)指標(biāo)檢測(cè)原理：催化燃燒式（可燃?xì)怏w）電化學(xué)（氧氣/有毒氣體）NDIR 紅外式（二氧化碳/甲烷）PID 光離子（VOC有機(jī)揮發(fā)物）檢測(cè)氣體：可燃?xì)怏w（烷類(lèi)、醇類(lèi)、烯類(lèi)、酮類(lèi)、汽油等）、氧氣、有毒氣體（一氧化碳、氫氣、氨氣、氯氣、硫化氫等）采樣方式：自然擴(kuò)散；測(cè)量范圍：見(jiàn)第11頁(yè)附表分 辨 率：可燃?xì)怏w 1%

4、LEL氧氣：0.1%VOL有毒氣體 O.lppm / 1ppm ；測(cè)量誤差滿(mǎn)量程土 5%報(bào)警點(diǎn)土 3%顯示方式4位LED數(shù)碼管顯示測(cè)量值；狀態(tài)指示3個(gè)LED指示故障、一級(jí)報(bào)警、二級(jí)報(bào)警；調(diào)試方式紅外遙控；報(bào)警方式LED指示報(bào)警、繼電器輸出、聲光報(bào)警（KB-501SQ ；響應(yīng)時(shí)間v 30s （可燃?xì)怏w），v 60s （有毒氣體）；恢復(fù)時(shí)間v 30s ；環(huán)境溫度40C70C；相對(duì)濕度v 95%防爆方式隔爆型；防爆等級(jí)Exd n CT6;電 源：DC24V± 25% 輸出信號(hào)：電流：420mA總線(xiàn)：RS485開(kāi)關(guān)量：2個(gè)功 耗：w 3W安裝鑼紋：G1/2;使用電纜：RVVF3X 1.5mm

5、2;探測(cè)器與主機(jī)間最大距離：w 1000m;整機(jī)重量：w 2000g;壓力限制：86kPa106kPa;執(zhí)行標(biāo)準(zhǔn)：GB15322.2-2003、GB50493-2009。3外殼結(jié)構(gòu)及各部件結(jié)構(gòu)示意圖序號(hào)序號(hào)若稱(chēng)102崔惑鶉腔哇9310示值京口4上盍11高報(bào)警指示燈5播應(yīng)嶽絲12脩報(bào)警指示 孫6紅外接收窗13瀬晅噌示燈7妾裝3L序號(hào)名稱(chēng)序號(hào)名稱(chēng)1防護(hù)罩8播賤孔29接線(xiàn)據(jù)母3下売10示值窗口4上壺11高振警指示燈5接地蟀絲12低掘雲(yún)揩示燈6虹外接臨窗13敲陣指救T7安裝乳14聲逛抿警器4接線(xiàn)說(shuō)明KB-501SG型氣體探測(cè)器接線(xiàn)注意事項(xiàng)：探測(cè)器如上5.1安裝位置和5.2安裝方法固定牢固后，將探測(cè)器的

6、前 蓋旋下，擰開(kāi)接線(xiàn)螺母，取出接線(xiàn)孔中的防爆墊片，然后將四芯傳輸電 纜依次穿上接線(xiàn)螺母、墊圈、橡膠密封圈，并從接線(xiàn)孔穿入至殼體內(nèi)。根據(jù)防爆要求，未使用到的接線(xiàn)孔請(qǐng)勿將其中的防爆墊片取出，探測(cè)器 殼體及內(nèi)部電路板上的所有部件請(qǐng)勿隨意丟棄。將導(dǎo)線(xiàn)按標(biāo)記分別接到殼體內(nèi)對(duì)應(yīng)的接線(xiàn)端子上，檢查接線(xiàn)正確無(wú) 誤后，再將殼體內(nèi)多余的電纜線(xiàn)抽出，最后將壓緊螺母擰緊，壓緊橡膠 密封圈，抱緊電纜線(xiàn)(隔爆設(shè)計(jì)要求)。使用防爆軟管時(shí)也可與本探測(cè)器 直接連接?？刂破骱吞綔y(cè)器之間，用線(xiàn)徑不小于RVVF3X 1.5mm2 (< 1000m) 三芯電纜連接。各環(huán)節(jié)連接檢查無(wú)誤后，將前蓋旋緊。根據(jù)用戶(hù)現(xiàn)場(chǎng)條件，也可先把電纜

7、接好，再將探測(cè)器固定。5操作說(shuō)明儀器開(kāi)機(jī)后會(huì)進(jìn)入 30秒預(yù)熱倒計(jì)時(shí)，然后依次顯示以下信息軟件版本低報(bào)值高報(bào)值滿(mǎn)量程濃度單位遙控器按鍵由確認(rèn)、設(shè)置、取消、+、-、輔助4 （左移位）、輔助6 （右移位）7個(gè)按鍵組成。注意：“設(shè)置”鍵，“確認(rèn)”鍵，“取消”鍵都是單次觸發(fā)按鍵，即使一直 按鍵也只能觸發(fā)一次，兩次按鍵之間要有1s以上間隔；“ + ”鍵，“”鍵為連續(xù)觸發(fā)鍵，一直按鍵可重復(fù)觸發(fā)。功能設(shè)置必須按“確認(rèn)”鍵以 后才會(huì)生效，設(shè)置完畢后需按“取消”鍵退出設(shè)置才能回到正常狀態(tài)。有 效設(shè)置內(nèi)容可斷電保持，直到下次更改生效為止。顯示狀態(tài)說(shuō)明：1正常：數(shù)碼管顯示“ XXXX % LEL（XXXX為正常值），

8、指示燈不亮；2故障指示：數(shù)碼管顯示“ FAUL'，故障燈（黃色）亮；3 一級(jí)報(bào)警：數(shù)碼管顯示“ XXXX % LEL（XXXX為大于等于一級(jí)報(bào)警值小于二級(jí)報(bào)警值），一級(jí)報(bào)警燈（紅色）亮（回落時(shí)需低于一級(jí)報(bào)警值 再減回差值才能取消一級(jí)報(bào)警）；4二級(jí)報(bào)警：數(shù)碼管顯示“ XXXX % LEL（XXXX為大于等于二級(jí)報(bào)警值）， 一級(jí)報(bào)警燈（紅色）和二級(jí)報(bào)警燈（紅色）亮（回落時(shí)需低于二級(jí)報(bào)警值再減回差值才能取消二級(jí)報(bào)警）；5 一級(jí)報(bào)警設(shè)置：數(shù)碼管顯示“ P-1 ”，由此可進(jìn)入一級(jí)報(bào)警設(shè)置；6二級(jí)報(bào)警設(shè)置：數(shù)碼管顯示“ P-2 ”，由此可進(jìn)入二級(jí)報(bào)警設(shè)置；7零點(diǎn)校正：需要密碼進(jìn)入（參照5.3）;8

9、單點(diǎn)標(biāo)定：需要密碼進(jìn)入（參照 5.4）；5.1 一級(jí)報(bào)警點(diǎn)設(shè)置由正常狀態(tài)按“設(shè)置”鍵一次，顯示“一”，按“確認(rèn)”鍵，顯示“P1 ”閃爍再次按“確認(rèn)”鍵即顯示默認(rèn)一級(jí)報(bào)警值（低報(bào)警值），需要改動(dòng)此值時(shí)可按“ + ”鍵或“-”鍵增加或減少一級(jí)報(bào)警點(diǎn)值（可燃?xì)?體：范圍在1025;有毒氣體：根據(jù)不同氣體報(bào)警值設(shè)置不同），然后按“確認(rèn)”鍵即記憶當(dāng)前設(shè)置的一級(jí)報(bào)警值。退出后立即生效。此時(shí)顯示 “P1”，可按“ + ”鍵或“”鍵繼續(xù)其他設(shè)置，也可按“取消”鍵退出， 回到正常狀態(tài)。5.2二級(jí)報(bào)警點(diǎn)設(shè)置由正常狀態(tài)按“設(shè)置”鍵一次，顯示“一”，按“確認(rèn)”鍵，顯示“P1 ”閃爍，按“ + ”鍵顯示“ P2 ”閃爍

10、，再次按“確認(rèn)”鍵即顯示默認(rèn) 二級(jí)報(bào)警值（高報(bào)警值），需要改動(dòng)此值時(shí)可按“ + ”鍵或“”鍵增加 或減少二級(jí)報(bào)警點(diǎn)值（可燃?xì)怏w：范圍在3050;有毒氣體：根據(jù)不同氣體報(bào)警值設(shè)置不同），然后按“確認(rèn)”鍵即記憶當(dāng)前設(shè)置的一級(jí)報(bào)警值。 退出后立即生效。此時(shí)顯示“ P2”，可按“設(shè)置”鍵繼續(xù)其他設(shè)置，也可 按“取消”鍵退出，回到正常狀態(tài)。5.3零點(diǎn)校正1、將氣體探測(cè)器置于潔凈空氣中；2、按說(shuō)明書(shū)給探測(cè)器接入 DC24V電源；3、 按“設(shè)置”鍵一次，屏幕顯示“-”，通過(guò)“移位”鍵和“ +”、“-” 鍵輸入“ SOE，按“確認(rèn)”鍵即進(jìn)入零點(diǎn)標(biāo)定狀態(tài)，待采樣值穩(wěn)定后，按“確認(rèn)”鍵保存，儀器自動(dòng)退出標(biāo)定狀態(tài)。

11、 注意一定要放在潔凈空氣環(huán)境中，不可在正常工作時(shí)進(jìn)行此項(xiàng)設(shè)置。5.4單點(diǎn)標(biāo)定傳感器使用一定時(shí)間后，將由于飄移而導(dǎo)致測(cè)量結(jié)果產(chǎn)生誤差，為 了方便用戶(hù)自行校正，KB-501XKB-501SG 具有單點(diǎn)校正功能。1、 按說(shuō)明書(shū)給探測(cè)器接入DC24V電源；2、 按“設(shè)置”鍵一次，屏幕顯示“-”，通過(guò)“移位”鍵和“ +”、“-” 鍵輸入“ CAE，按“確認(rèn)”鍵 即進(jìn)入高點(diǎn)標(biāo)定狀態(tài)；3、通入指定濃度的標(biāo)準(zhǔn)氣體，待采樣值穩(wěn)定后，按“確認(rèn)”鍵后進(jìn)入濃 度值調(diào)整狀態(tài)，將此數(shù)值調(diào)整為與通入標(biāo)準(zhǔn)氣體的濃度值一致后，再按“確認(rèn)鍵”保存，儀器自動(dòng)退出標(biāo)定狀態(tài)。注意正確操作，不可在正常工作時(shí)進(jìn)行此項(xiàng)設(shè)置。6常見(jiàn)故障及解決

12、辦法故障現(xiàn)象故障原因處理方式顯示“ FAUL'故障接線(xiàn)錯(cuò)誤斷線(xiàn) 或傳感器壞重新接線(xiàn)或更換傳感器對(duì)檢測(cè)氣體無(wú)反應(yīng)傳感器壞更換傳感器電路故障廠(chǎng)家維修與控制器連接異常布線(xiàn)故障檢杳線(xiàn)路電路故障廠(chǎng)家維修7注意事項(xiàng)a）本機(jī)需在無(wú)腐蝕性氣體、油煙、塵埃并防雨的場(chǎng)所使用，防止從高 處跌落或受劇烈震動(dòng)。b）探頭處不得有快速流動(dòng)氣體直接吹過(guò)，否則會(huì)影響測(cè)試結(jié)果。c）勿使本機(jī)經(jīng)常接觸濃度高于檢測(cè)范圍以上的高濃度氣樣，否則會(huì)損 失傳感器工作壽命。d）對(duì)于混合性可燃?xì)怏w或液體蒸氣等監(jiān)測(cè)氣樣與標(biāo)定氣樣不同的環(huán)境，本機(jī)檢測(cè)結(jié)果會(huì)與實(shí)際氣體濃度有一定誤差。e）本機(jī)出廠(chǎng)前均經(jīng)嚴(yán)密檢查測(cè)試，為保證測(cè)量精度，應(yīng)定期進(jìn)行校準(zhǔn)

13、 標(biāo)定，一般半年校準(zhǔn)一次，也可根據(jù)現(xiàn)場(chǎng)有關(guān)規(guī)定進(jìn)行。f）推薦催化燃燒式傳感器使用壽命為三年，電化學(xué)傳感器使用壽命為 二年。g）紅外遙控器不使用時(shí)請(qǐng)將電池取出，以增長(zhǎng)使用壽命和避免泄露對(duì) 遙控器的影響。8保修與維護(hù)本產(chǎn)品保修期一年，正常使用情況出現(xiàn)故障，可享受免費(fèi)工廠(chǎng)維修、 維護(hù)服務(wù)。對(duì)于人為及自然災(zāi)害、非正常使用所造成的損害不屬保 修范圍。若傳感器壽命到期，請(qǐng)與我公司聯(lián)系，以便更換新的傳感器。 若用戶(hù)不能排除故障，可將儀器寄回我公司維修，我們將以最快的 速度排除故障并交回用戶(hù)。9配件整機(jī)配件:KB-501X/KB-501SG點(diǎn)型氣體探測(cè)器1臺(tái)產(chǎn)品使用說(shuō)明書(shū)1份合格證1份包裝盒1個(gè)氣體量程范圍氣

14、體量程范圍甲烷0-100%LEL丙醛（液體）0-100%LEL乙烷0-100%LEL乙酸甲酯0-100%LEL丙烷0-100%LEL乙酸0-100%LEL丁烷0-100%LEL氧氣0-30%VOL乙烯0-100%LEL一氧化碳0-500,0-2000ppm丙烯0-100%LEL環(huán)氧乙烷0-100， 0-1000ppm丁烯0-100%LEL氟化氫0-10ppm丁二烯0-100%LEL氰化氫0-50ppm乙炔0-100%LEL氯氣0-50ppm環(huán)丙烷0-100%LEL氯化氫0-30ppm丙酮0-100%LEL氨氣0-100ppm丁酮0-100%LEL硫化氫0-100， 0-1000ppm液化石油氣

15、0-100%LEL磷化氫0-20,0-2000ppm汽油（液體）0-100%LEL二氧化硫0-20,0-2000ppm乙醛0-100%LEL二氧化碳0-2000 ， 0-5000ppm苯（液體）0-100%LEL二氧化氮0-20,0-2000ppm甲苯0-100%LEL臭氧0-20ppm氯乙烷0-100%LELVOC0-200,0-2000ppm附表檢測(cè)氣體及量程因氣體種類(lèi)繁多，未盡氣體類(lèi)型及特殊量程要求，請(qǐng)聯(lián)系廠(chǎng)商。Content1. Descripti on 12. Technical Parameter 23. Structural Representation 44. Connecti

16、on Directions 65. Operation Instructions 85.1 Grade-1 alarm setting 105.2 Grade-2 alarm setting 105.3 Zero calibration 115.4 Single-point calibration 116. Com mon problems and soluti ons 127. Notes128. Warra nty and Mai nte nance 139. Standard Delivery 141. Descripti onGas detector KB-501X / KB-501S

17、G is a new type gas detection device which used high performanee gas sensors (catalytic combusti on sen sor for combustible gas, electrochemical sen sor for oxyge n and toxic gas, NDIR in frared sen sor for carb on dioxide and methane, PID sensor for VOCs) and microcontroller, employed sophisticated

18、 SMD tech no logy. It has follow ing adva ntages:good repeatability, high resista nee to humidity-temperature jammi ng, long performanee life and simple operation. It is applied to in specti on for appo in ted gas concen trati on in in dustrial en vir onmen ts.斗hrfl4*g則 IIKB-501X/ KB-501SG can trans

19、late the appointed gasconcentration signals into digital signals for display. Three-wire system 420mA electric current signals and four-wire system RS485 bus output, with long transmission distanee and good anti-inference capacity. In addition, it has two-stage alarm function with acoustic and visua

20、l sig nals.KB-501X / KB-501SG is applied to gas safety inspection and alert for in dustrial see ne, such as petroleum refi nery, chemical pla nts, LPG stations, boiler rooms, gas stations, paint spray booths, etc.1.1 The design, manufacture and calibration complies the following national standards:G

21、B3836.1-2000vElectricalequipme ntforexplosivegasatmospheres Part 1: General requirements>GB3836.2-2000vElectricalequipme ntforexplosivegasatmospheres Part 2Explosion insulating type “ d” >GB16808-1997 <Tech no logy requireme nts and test ing methods for combustible gas alarm con troller>

22、GB4208-93 <Enclosure protection class(IP code) >GB/T13384-92 <Tech ni cal co nditio ns for mecha ni cal a nd electrical products packag ing applicati ons>2. Tech ni cal parameterDetection Principle:Catalytic combusti on (for combustible gas);Electrochemical (for O2 and toxic gas);NDIR in

23、frared (for CO2 and CH4);PID photoio ni zation (for VOCs)Applicable Gas:Combustible gas (alkanes, alcohol, vinyl, ketone, gasoline, etc), oxyge n, toxic gas (CO, H2, NH3, Cl, H2S, etc)Sampli ng Method: Natural diffusi onDetect ing Ran ge: Referri ng to the gas parameter list on page 14.Resoluti on:

24、Combustible gas: 1%LEL; 02: 0.1%VOL;Toxic gas: 0.1ppm / 1 ppmAccuracy: 5% F.S; 3% alarm threshold pointDisplay: Four-digit LED ni xietubes displayStatus Indication: Three LED indicate the failure, Grade-1 alarm, Grade-2 alarmCon trolli ng: In frared remote con trolAlarmi ng Method:LED indication ； R

25、elay output;Acoustic-optical signal (only for KB-501SG)Response Time: v 30s (< 60s for some toxic gas)Resume Time: < 30sOperat ing Temperature: -40C 70°CRelative Humidity: < 95%Explosi on-proof Type: Explosi on in sulat ingExplosi on-proof Grade: Ex d IIC T6Power Supply: DC 24V 25%Outp

26、ut Sig nal:Electric Curre nt: 420mABus: RS485Freque ncy: 2001000Hz (optio nal)Switchi ng Value: 2-wayPower Con sumpti on: < 3WScrew Thread for Installation: G1/2Used Cable:沫WI3 x 1.5mm2Max. Dista nee between Detector and HostW 1000mTotal Weight: < 2000gPressure: 86kPa 106kPaOperating Standard:

27、GB15322-2-003、GB50493-20093. Structural Represe ntatio nKB-501X1Shield8Wiring Hole2Sen sor Chamber9Conn ect ing Nut3Un der Shell10In dicati on Win dow4Upper Cover11High Alarm In dicator Light5Grounding Screw12Low Alarm In dicator Light6In frared Receiver Window13Fault Light7Mou nting HoleKB-501SG1Sh

28、ield8Wiring Hole2Sen sor Chamber9Connecting Nut3Un der Shell10In dicati on Window4Upper Cover11High Alarm In dicator Light5Grounding Screw12Low Alarm In dicator Light6In frared Receiver Win dow13Fault Light7Mou nting Hole14Audible-visual Annun ciator4. Conn ecti on Directi onsLn詢(xún) aiLiumH昭It alarm ou

29、tput-RMR斤 Airl|njt!>C 24M+ CC >W- J1 eiKptn'dI LiLt GM> 知¥ 良曰 HE LS 也4齡 血人丫KB-&01XOND打mi弋、Wire conn ecti ng diagram of KB-501XL«w laiini ouipatHigh jldiin Dtilpwi =0C?W- PQ?<V "廠(chǎng)amtAudihle-M ubI Alarm'HU、您血您廳Z 州 D 卻 V 4 ：冃 H& LS 4AL-R&455 *ELAYKB 501SGW

30、ire conn ect ing diagram of KB-501SGCauti on:After fixed the detector, please open the upper cover, unscrew the connecting nut and take out the explosion-proof gasket from the wiring hole. Then, let the four-wired transmission cable bore through the connecting nut, washer and rubber obturating ring

31、orderly, fin ally through the wiring hole into the shell inner. Based on the request of explosion-proof, please do not take out the explosi on-proof gaskets in unu sed wiri ng holes. In additi on, please do not discard the parts in the detector or on the inner circuit board.Connect the wire to the t

32、erminals in the shell inner according to the marks. En sure the connection correct, the n, extract the spare cable from the shell. Finally tighten the nut and rubber obturating ring to muffle the cable tightly (based on the request of explosion-proof design). Also, the explosion-proof hose can be co

33、nnected to the detector directly.Connect the detector and con troller with a three-core cable which has a wire diameter ofRWf3x 1.5mm2 ( < 1000m) at least.After checked the link connection, please tighten the upper cover. Based on the field conditions, it is also all right if you fix the detector

34、 after conn ected the cables.5. Operati on In structi onsAfter switched on, there will be a 30-sec ond coun tdow n for preheat. Then, below in formati on will be displayed gradually:Software version; Low alarm value; High alarm value; Full scale; concen trati on un it.There are seve n keys of set ,e

35、n ter, ex,t 亍 and ,J” on the remote controller.Remark: The keys of set, en ter and exit are sin gle trigger butt on which will only trigger one time even if you keep pressing the key. Please keep a second ' interval between two keystrokes.The keys of +' -a'ndare'c on ti nu ous trigge

36、r butt on which will be continuous trigger under you keep pressing. Function setting will besaved only after the key of“ enter ” pressed. After the setting, plpress the key of “ exit ” to return to the normal status. Tha saved will be maintained eve n after power dow n, un til n ext update data be s

37、aved.Descripti on of the display:1. Normal status： Digital displays“XXXX %LEL (XXXX is theno rmal value) with in dicator light black out.2. Fault indication: Digital displaysh“tFAUti£ilt light on(yellow).3. Grade-1 alarm: Digital displays“XXXX %LEL (XXXX is thevalue which is not lower than Grad

38、e-1 alarm threshold value but lower than Grade-2 alarm threshold value) with the low alarmindicator light on (red). If the value fell, only when it is lower than the Grade-1 alarm value you can subtract the differenee value to can cel the Grade-1 alarm sett ing.4. Grade-1 alarm: Digital displays“XXX

39、X %LEL (XXXX is thevalue which is not lower tha n Grade-2 alarm threshold value)with the low alarm indicator light and high alarm indicator light on (both red). If the value fell, only when it is lower than the Grade-2 alarm value you can subtract the differe nee value to can cel the Grade-2 alarm s

40、ett ing.5. Grade-1 alarm setting: When digital displays “ P 1”you can go into the mode of Grade-1 alarm sett ing.6. Grade-2 alarm setting: When digital displays “ P 2”you can go into the mode of Grade-2 alarm sett ing.7. Zero calibration: this menu can only be entered by using thepassword (referri n

41、g to 5.3).8. Single point calibration: this menu can only be entered by usingthe password (referri ng to 5.4).5.1 Grade-1 alarm sett ingUnder the normal status press the key of “ set ” “” will bedisplayed. Press the key of “enter, ” “ P1” will blinking display. Press “ enter key again, the default v

42、alue of Grad-1 alarm (low alarm value) will be displayed. Users can press ' to a+ustor the Grade-1 alarm value (for combustible gas, the range is 1025;for toxic gas, the value will be set in different ranges which depe nding on the gas types). Then, press “ en ter to memory the curre nt value wh

43、ich will be effective immediately after exit. Now,“ P 1 ” will be displayed on the screen. User can press ' to + set other parameters,or press “ exit to go back to normal work status.5.2 Grade-2 alarm sett ingUnder the normal status press the key of “ set ” “” will bedisplayed. Press the key of

44、“enter, ” “ P1” will blinking display. Press“ +” key, “ P 2 ” will blinking display. Tnen, pressaga in, the default value of Grad-2 alarm (low alarm value) will be displayed. Users can press +' o ' "tcadjust the Grade-2 alarm value (for combustible gas, the range is 3050; for toxic gas,

45、 the value will be set in different ranges which depending on the gas types). Then, press“enter ” to memory the current value which willbe effective immediately after exit. Now,“ P 2 ” will be displathe screen. User can press +Or ' to set other parameters,or press “ exit ” to return to normal wo

46、rk status.5.3 Zero calibratio n1. Put the gas detector in clear air en vir onment.2. Access power of DC 24V accord ing to the directi on in operati ng manu al.3. Press the key of“set ” ,“” will be displayed. Inputmenu by press ing be stable, press“ enter ” key. After the displayed sampling value “ e

47、nter ” key to save the current value and exit.press ing keys ofJ ” and enter zeroatcbrationCaution: Zero calibration must be operated in clear air, do notoperate it in the normal working environment.5.4 Sin gle-po int calibrati onAfter a period of usage, there may be errors caused by dift. I n order

48、 to facilitate user of correct ion, KB-501X/SG has the fun ctio n of sin gle-po int calibratio n.1. Access power of DC 24V accord ing to the direct ion in operati ngmanu al.2. Press the key of“set ” ,“” will be displayed. Inputpressing keys of + , J , and enter singleoint calibration menu by pressin

49、g“enter ” key.3.lnlet the calibration gas (known concentration), wait until the displayed sampling value be stable. Press “ set key to enterconcentration value adjustment menu. Adjust the data to the same value as calibrati on gas concen trati on, press“ setsave and exit.Caution: Please operate in a

50、ccordanee with proper procedures.Single-point setting can not be operated under the normal work con diti on.6. Common problems and soluti onsSymptomsSource of TroubleTroubleshoot ing“FAUL” displayi ngConn ecti on error or broke n; Sen sor damageRewiri ng or replace thesensorNo resp onse to the detec

51、ted gasSen sor damageReplace the sen sorCircuit faultFactory maintenanceAbno rmal conn ecti on with the con trollerWiring faultCheck the conn ected wireCircuit faultFactory maintenance7. Notes1) Keep the device away from corrosive gas, lampblack, dust and rain when it working. Avoid dropping from he

52、ight or severe vibrati ons.2) There should be no rapid flow of gas near the probe, or it will impact the detect ing result.3) Do not regular con tact the device with high concen trati on gas which has higher concentration than the detecting range, or the sen sor life will reduce.4) For mixed combustible gas or liquid vapor, there may be errors in the detect ing result, due to the operat i