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華檢認(rèn)證是經(jīng)過中國國家認(rèn)證認(rèn)可監(jiān)督管理委員會(中華人民共和國國家認(rèn)證認(rèn)可監(jiān)督管理局(簡稱CNCA))審核并認(rèn)可的實(shí)驗(yàn)室,國家實(shí)驗(yàn)室(CNAS)認(rèn)證認(rèn)可編號L5540;同時(shí)我們也是德國TUV,美國UL,F(xiàn)CC,加拿大CSA, 挪威NEMKO等國際機(jī)構(gòu)的授權(quán)認(rèn)可實(shí)驗(yàn)室,歡迎親臨實(shí)驗(yàn)室參觀。作為一家獨(dú)立的第三方專業(yè)測試認(rèn)證服務(wù)機(jī)構(gòu),我們嚴(yán)格執(zhí)行實(shí)驗(yàn)室認(rèn)可體系規(guī)范ISO/IEC Guide 65和ISO17025的要求,嚴(yán)格保守客戶的商業(yè)秘密,恪守科學(xué)、公正、準(zhǔn)確、高效的測量原則。公司自成立以來已為國內(nèi)數(shù)百多家企業(yè)的產(chǎn)品出口到歐洲、美國、加拿大、澳洲等地獲得認(rèn)證認(rèn)可(如:UL、GS、CB、CE、FCC、SAA、SASO、SONCAP、PSE、KUCAS、PVOC、EK-mark、E-mark、FDA、KC、COC、CSA、CCC等)。安規(guī)測試服務(wù)+電磁相容性測試服務(wù):測試標(biāo)準(zhǔn)、適用產(chǎn)品范圍EN60601-1 CISPR 11/EN 55011 工業(yè)、醫(yī)療和科學(xué)產(chǎn)品的電磁波干擾檢測EN60065/UL6500/CISPR13/EN55013、CISPR20/EN 55020AV類產(chǎn)品:電視機(jī),錄音機(jī),收音機(jī),VCD,DVD,CD等音響,攝像/錄像機(jī),數(shù)碼相機(jī)。EN60335/UL60335/CISPR14/EN55014-1 EN55014-2家電類產(chǎn)品:電冰箱,空調(diào),電風(fēng)扇,微波爐,吹風(fēng)機(jī),電熱器,電動(dòng)工具,充電器,電源適配器,其它各種小型家電。EN 60598/UL153 /1571/CISPR15 EN55015/EN61547燈具類產(chǎn)品:一般室內(nèi)燈,白熾光源,鹵素?zé),螢光燈,?zhèn)流器,電子式鎮(zhèn)流器等。EN60950/UL1950 CISPR22/EN 55022 VCCI V-3/CISPR24/EN55024IT類產(chǎn)品:電腦及其周邊,如顯示器,打印機(jī),UPS,鼠標(biāo),鍵盤,數(shù)據(jù)機(jī),掃描儀,主機(jī)板,電腦主機(jī)板,MP3,刷卡機(jī),充電器,電源適配器,及各種電腦配件等。EN61000-6-1,EN61000-6-3 居住、商業(yè)、輕工業(yè)環(huán)境下的電磁檢測EN61000-6-2,EN61000-6-4 工業(yè)環(huán)境下的電磁擾檢測
低價(jià)GMT交叉導(dǎo)軌,GRV09-500,GRV09-600
0~600℃進(jìn)口雙金屬溫度計(jì)元件。在600度點(diǎn)仍具有良好的穩(wěn)定性、線性和回復(fù)性,真正實(shí)現(xiàn)精確測試高溫環(huán)境的目的。我們生產(chǎn)的雙金屬溫度計(jì)感溫元件是印刷版刻度盤的。使用預(yù)先統(tǒng)一印制的刻度盤,精度可達(dá)1.0級,免去傳統(tǒng)的先分度、手劃標(biāo)牌、再復(fù)測等繁瑣工藝。
元件直徑分Φ6.5、Φ5、Φ4三種,也可按照客戶要求制作。雙金屬材料有國產(chǎn)材料及進(jìn)口高溫材料兩種。元件長度為20mm~70mm不等。
接口尺寸: | G1/2(mm) | 加工定制: | 是 |
防護(hù)等級: | IP65 | 測量范圍: | 0-160000(kPa) |
類型: | 陶瓷型壓力變送器 | 防爆等級: | EX |
型號: | S-20 | 測量介質(zhì): | 液體 氣體 |
精度等級: | 0.125 | 品牌: | WIKA/威卡 |
輸出信號: | 4-20(mA) | 電源電壓: | 10-30(V) |
WIKA S-20 高精度 高壓力范圍 壓力變送器
精度:0.125 1600bar
Superior pressure transmitter for general industrial applicationsModel S-20
Applications Critical industrial applications Demanding applications in research and development Harsh environments in the process industry
Special features Measuring ranges from 0 ... 0.4 to 0 ... 1,600 bar Non-linearity of up to 0.125 % of span Different output signals, e.g. 4 ... 20 mA, DC 0 ... 10 V,
DC 1 ... 5 V and others Market-standard electrical connections, e.g. DIN 175301-803 A angular connector Common international process connections
Description The model S-20 pressure transmitter for general industrial applications is the ideal solution for customers with demanding measuring requirements. It features a very good accuracy, a robust design and an exceptional number of variants, meaning it can be suited to the widest range of applications.
Versatile The model S-20 offers continuous measuring ranges between 0 ... 0.4 and 0 ... 1,600 bar in all the major units. These measuring ranges can be combined in almost any way with all the standard industry output signals, the most common international process connections and a wide number of electrical connections. Furthermore, it offers numerous options, such as different accuracy classes, extended temperature ranges and customer-specific pin assignments.
High quality The robust design turns the model S-20 into a very high quality product, which even the most adverse environmental conditions cannot affect. Whether with the lowest temperatures when used outdoors, with extreme shock and vibration in machine building or with aggressive media in the chemical industry, this transmitter can meet all requirements.
Availability All variants described in this data sheet are available on very short lead times. For particularly urgent demands, there is a sizeable stock available.
Measuring ranges
The given measuring ranges are also available in kg/cm2, kPa and MPa. Special measuring ranges between 0 ... 0.4 and 0 ... 1,600 bar are available on request. Special measuring ranges have a reduced long-term stability and increased temperature errors.
Overpressure limit The overpressure limit is based on the sensor element used. Depending on the selected process connection and sealing, restrictions in overpressure safety can result. A higher overpressure limit will result in a higher temperature error.
Measuring range < 10 bar/150 psi ≥ 10 bar/150 psi 3 times (standard) 2 times 1) (standard) 5 times 3 times 2) 3) 1) Restriction: max. 60 bar/870 psi with absolute pressure 2) Only possible for relative pressure measuring ranges ≤ 400 bar or 5,800 psi 3) Only possible for absolute pressure measuring ranges < 16 bar or 220 psi
Vacuum tightness Yes
Output signal
Signal type Signal Current (2-wire) 4 ... 20 mA 20 ... 4 mA Voltage (3-wire) DC 0 ... 10 V DC 0 ... 5 V DC 1 ... 5 V DC 0.5 ... 4.5 V DC 1 ... 6 V DC 10 ... 0 V Ratiometric (3-wire) DC 0.5 ... 4.5 V
Other output signals on request.
Permissible load in Ω Current output (2-wire): ≤ (power supply - 7.5 V) / 0.023 A ≤ (power supply - 11.5 V) /
0.023 A (with optional settling time of 1 ms) Voltage output (3-wire): > maximum output voltage / 1 mA Ratiometric output (3-wire): > 4.5k
Signal limiting (option) 4 ... 20 mA: Zero point: 3.6 mA 1), 3.8 mA, 4.0 mA Full scale: 20 mA, 21.5 mA, 23 mA DC 0 ... 10 V: Full scale: DC 10 V, DC 11.5 V 1) Not possible in combination with zero point adjustment by the customer
Voltage supply
Power supply Maximum power supply for cULus approval: DC 35 V (DC 32 V with heavy-duty connector) Current output (2-wire) 4 ... 20 mA: DC 8 ... 36 V (DC 12 ... 36 V with optional settling time of 1 ms) 20 ... 4 mA (inverted): DC 8 ... 36 V Voltage output (3-wire) DC 0 ... 10 V: DC 12 ... 36 V DC 0 ... 5 V: DC 8 ... 36 V DC 1 ... 5 V: DC 8 ... 36 V DC 0.5 ... 4.5 V: DC 8 ... 36 V DC 1 ... 6 V: DC 9 ... 36 V DC 10 ... 0 V: DC 12 ... 36 V Ratiometric output (3-wire): DC 0.5 ... 4.5 V: DC 5 V ±10 %
Dissipation loss Current output (2-wire): 828 mW (22 mW/K derating of the dissipation loss with ambient temperatures ≥ 100 °C) Voltage output (3-wire): 432 mW
Current supply Current output (2-wire): Current signal, max. 25 mA Voltage output (3-wire): max. 12 mA
Reference conditions (per IEC 61298-1)
Temperature 15 ... 25 °C
Atmospheric pressure 860 ... 1,060 mbar
Humidity 45 ... 75 % relative
Power supply DC 24 V DC 5 V with ratiometric output
Mounting position Calibrated in vertical mounting position with pressure connection facing downwards.
Time response 1) 3 dB limit frequency: 500 Hz2) 3 dB limit frequency: 1,000 Hz3) Alternative specifications for 4 ... 20 mA output signal: Load: ≤ (power supply - 11.5 V) / 0.023 A Power supply: DC 12 ... 36 V
Switch-on time 150 ms
Switch-on drift 5 s (60 s with optional zero point adjustment 0.1 %)
Accuracy data
Relationship to the mounting position For measuring ranges < 1 bar/15 psi, an additional zero offset of up to 0.15 %applies
Non-repeatability ≤ ±0.1 % of span
Temperature hysteresis 0.1 % of span at > 80 °C
Long-term drift (per IEC 61298-2) ≤ ±0.1 % of span ≤ ±0.2 % of span (with special measuring ranges)
Temperature error (for calibration temperature of 15 ... 25 °C) For measuring ranges < 1 bar, special measuring ranges and instruments with an increased overpressure limit the respective temperature error increases by 0.5 % of span
Operating conditions Permissible temperature ranges
Storage and transport conditions Permissible temperature range: -40 ... +70 °C Maximum humidity (per IEC 68-2-78): 67 % r.h. at 40 °C (in accordance with 4K4H per EN 60721-3-4)
Climate class Storage: 1K3 (per EN 60721-3-1) Transport: 2K2 (per EN 60721-3-2) Operation: 4K4H (per EN 60721-3-4, without condensation or icing)
Vibration resistance (per IEC 68-2-6) 20 g, 10 ... 2,000 Hz, (40 g, 10 ... 2,000 Hz for heavy-duty connector) For instruments with cooling elements a limited vibration resistance applies 10 g (10 ... 2,000 Hz)
Continuous vibration resistance (per IEC 68-2-6) 10 g
Shock resistance (per IEC 68-2-27) 100 g, 6 ms (500 g, 1 ms for heavy-duty connector)
Service life 100 million load cycles (10 million load cycles for measuring ranges > 600 bar/7,500 psi)
Free-fall test (following IEC 60721-3-2) Individual packaging: 1.5 m Multiple packaging: 0.5 m PE bag: 0.5 m
Process connections Available connections
Other process connections on request.
Process connections
Electrical connections
Available connections
Connection diagrams
Other pin assignments on request.
Electrical protective measures The electrical protective measures are not valid for ratiometric output signals. Short-circuit resistance: S+ vs. U- Reverse polarity protection: U+ vs. U- Resistance to overvoltage: DC 40 V Insulation voltage: DC 750 V
Materials
Wetted parts Relative measuring ranges: - Measuring ranges ≤ 10 bar/150 psi: 316L - Measuring ranges > 10 bar/150 psi: 316L + 13-8 PH Absolute pressure measuring ranges: - Measuring ranges ≤ 1,000 bar/10,000 psi: ASTM 630 and 13-8 PH - Measuring ranges > 1,000 bar/10,000 psi: 316L + 13-8 PH Sealing materials: see "Process connections"
Non-wetted parts Case: 316 Ti Zero point adjustment ring: PBT/PET GF30 Electrical connections: Angular connector DIN 175301-803 A: PBT/PET GF30 Angular connector DIN 175301-803 C: PBT/PET GF30 Circular connector M12 x 1 (4-pin): PBT/PET GF30 Circular connector M12 x 1 (4-pin, metallic): 316L Bayonet connector (6-pin) 316L + Al Field case: 316L, 316Ti Heavy-duty connector: 316L Cable outlet IP 67: PA66 Cable outlet ½ NPT conduit: 316L Cable outlet IP 68: 316L Cable outlet IP 68, FEP: 316L
Cable outlet IP 6K9K: 316L
Pressure transmission fluid Synthetic oil (for measuring ranges < 10 bar/150 psi relative and absolute pressure)
Options for specific media
CE conformity
Pressure equipment directive 97/23/EC
EMC directive 2004/108/EC, EN 61326 emission (group 1, class B) and interference immunity (industrial application)
EM field 30 V/m (80 ... 1,000 Mhz)
RoHS conformity Directive 2002/95/EC
Performance level (per EN ISO 13849-1:2008) Performance level: PL = C Category: Cat. = 1 Diagnostic coverage: DC = none MTTF: > 100 years
Certificates (option)
Available certificates 2.2 test report State-of-the-art manufacturing Wetted metallic parts Confirmation of the class and indication accuracy 3.1 inspection certificate Wetted metallic parts Wetted metallic parts with suppliers' certificate Confirmation of the class and indication accuracy List of single measured values DKD/DAkkS calibration certificate Certificates, see website
Scope of delivery
Test report Non-linearity 0.5 % 3 points Non-linearity 0.25 % 5 points Non-linearity 0.125 % 5 points
Packaging Individual packaging (standard) Multiple packaging (up to 20 pieces)
Instrument labelling WIKA label lasered (standard) Customer-specific label on request
Dimensions in mm Pressure transmitter model S-20 Process connections
Accessories and spare parts
Mating connector Ordering information Model / Measuring range / Overpressure limit / Output signal / Non-linearity / Calibration temperature / Zero point adjustment/ Process connection / Pressure channel / Sealing / Electrical connection / Assembly / Cable length / Shielding / Certificates /Packaging / Instrument labelling / Accessories and spare parts
歡迎致電咨詢定購WIKA S-20 高精度 高壓力范圍 壓力變送器 精度:0.125 1600bar
電話: 56291930 15910733293
傳真:
QQ:823377546 1491421115 2636968574
郵箱:sales@zoriver.cn
公司官網(wǎng):http://www.zoriver.cn http://www.zoriver.com.cn
Exfo/Burleigh WA-1600 波長計(jì). Normal
WA-1600 Wavemeter systems are instruments designed for simple, automatic and accurate wavelength measurement of continuous wave (CW) laser sources. Wavemeter systems count interference fringes produced by the input laser radiation in a scanning Michelson interferometer and simultaneously count fringes from a built-in reference laser. The ratio of the fringe counts of the input laser and the reference laser provides the wavelength of the input laser.
Exfo Burleigh WA-1600 波長計(jì)Features:
•Scanning Michelson Interferometer
•Wavelength Accuracy of plus/minus 1.5 pm
•Continuous Calibration with Built-in Wavelength Reference
•RS-232 and GPIB Remote Interfaces
•High Precision Spectral Analysis
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長期供應(yīng)、現(xiàn)貨銷售:
可調(diào)激光源:AGILENT 81940A AGILENT 81949A AGILENT 81950A AGILENT 91980A AGILENT 81989A HP 8167B HP 8168F HP 8168E
AGILENT 81689A AGILENT 81480A/B AGILENT 81682A/B AGILENT81680A/B AGILENT 81640A/B 81642A AGILENT 81600B AQ4321A/D AQ4320D TSL-510
光譜儀:7004A/70950B 86142A/B 86140A/B 86141B 86143B 86145B 86142B MS9710A/B/C MS9740A MS9780A AQ6315E AQ6317B/C AQ6370B/C AQ6330 AQ6331 AQ6375 AQ6373 AQ6319 Q8381 Q8383 Q8384 Q8347 Q8344A
光示波器/眼圖儀:86100A/B/C/D 86105A/B/C 86103A 83481A 83482A 83483A 83485A/B 83487A 86116C 54754A 86112A 86117A/B 86118A 86108A 83446A
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TES3600 諧波分析儀TES-3600 三相電力分析儀(RS232)詳細(xì)介紹 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
MODEL TES-3600 特性:TES3600 諧波分析儀TES-3600 三相電力分析儀(RS232)
電氣規(guī)格 (23℃±5℃) 交流電壓測量 (V)
交流電流測量 (A)
有效功率瓦特測量 (KW)
無效功率乏爾測量 (KVAR)
視在功率伏安測量 (KVA)
功率累積分測量
功率因子測量 (PF)
頻率測量 (Hz)
一般規(guī)格: TES3600 諧波分析儀TES-3600 三相電力分析儀(RS232)
|
FG600智能靜壓液位計(jì)
一.概述
FG600智能靜壓液位計(jì)是本公司為適應(yīng)市場需求,而自行開發(fā)和生產(chǎn)的新一代液位測量儀表,該儀表具有性能,安裝簡單和使用方便的特點(diǎn),F(xiàn)G600系列有六種型號靜壓液位計(jì):
FG600-1型為沉入纜式結(jié)構(gòu);
FG600-2型為沉入桿式結(jié)構(gòu);
FG600-3型為直裝螺紋旋入式結(jié)構(gòu);
FG600-4型為直裝法蘭式結(jié)構(gòu),四者均具隔爆和本安型。
FG600-5和FG600-6接觸介質(zhì)部分材料為PTFE或哈氏合金,適用于強(qiáng)酸、強(qiáng)堿等強(qiáng)腐蝕介質(zhì)測量,具本安防爆型。FG600-5型為沉入纜式結(jié)構(gòu);FG600-6型為沉入桿式結(jié)構(gòu)。
二.工作原理
FG600智能靜壓液位計(jì)通過壓力傳感器實(shí)現(xiàn)液位測量。壓力傳感器探入或接觸被測液體,受到一定的靜壓(P)。此壓力(P,MPa)與液體高度(h,m)的關(guān)系列為P=10&#1471;³ρ gh。式中ρ為被測液體密度(g/cm³),g為當(dāng)?shù)氐闹亓退俣龋╩/s²)。對于一定的被測介質(zhì)和地點(diǎn),ρ和g為常數(shù),壓力和液位高度成正比。如此,通過壓力傳感器實(shí)現(xiàn)了液位測量。
三.技術(shù)指標(biāo)
防爆標(biāo)志:隔爆型dllCT6 (不含乙炔),(FG600-1﹑FG600-2﹑FG600-3﹑FG600-4)
本安型: ibllCT4
本安型關(guān)聯(lián)設(shè)備:KAS901安全限能器或LB803S型安全柵
滿度測量范圍:FG600-1,1~100m (隔爆型 1~20m)
FG600-2,0.5~4m;
FG600-3,F(xiàn)G600-4 2~100m
FG600-5 ,1~5m ;
FG600-6 ,0.5~3m
精度等級:0.2級,0.5級
穩(wěn)定性:優(yōu)于0.1%/年
環(huán)境溫度:-20~70℃
介質(zhì)溫度:-20~+60℃(FG600-1、 FG600-5)
-20~+80℃(FG600-2、 FG600-6)
-40~+130℃(FG600-3、 FG600-4)
變送器防護(hù)等級:IP65
傳感器防護(hù)等級:IP68
電源電壓:普通型 13-30.5V DC; 隔爆型12.5~30V DC
本安型 12.6~24V DC
變送器輸出:4~20mA
變送器外殼材料:壓鑄鋁合金
| 測量膜片 | 密封 | 外殼 |
FG600-1,F(xiàn)G600-2 | 96%氧化鋁陶瓷 | 氟橡膠等 | 1Cr18Ni9Ti |
FG600-3,F(xiàn)G600-4 | 316或哈氏合金等 | 電子束焊 | 1Cr18Ni9Ti |
FG600-5,F(xiàn)G600-6 | 96%氧化鋁陶瓷 | PTFE | PTFE |
四.防爆型與防腐型液位計(jì)安裝使用注意事項(xiàng)
(一) 隔爆型
1. 在爆炸危險(xiǎn)區(qū)域開啟液位變送器外殼時(shí),必須切斷儀表電源.
2. 把蓋旋緊后務(wù)必將蓋上的緊定螺紋旋緊.
(二) 本安型
1. 液位計(jì)應(yīng)單獨(dú)安裝,盡量遠(yuǎn)離大功率設(shè)備,以避免電磁感應(yīng)和靜電感應(yīng).
2. 本安電路的外部導(dǎo)線應(yīng)單獨(dú)布置,不允許與高壓電纜一起敷設(shè).
3. 液位計(jì)到安全柵的連接導(dǎo)線應(yīng)盡量縮短,禁止盤卷連接導(dǎo)線的分布電感,分布電容與液位計(jì)的等效電感,等效電容分別之和須少于安全柵規(guī)定的額定值(例如:當(dāng)導(dǎo)線截面1mm2時(shí),連接導(dǎo)線的總長度不大于1000米).
4. 為確保本安性能,用戶不得隨意更換器件,維修有困難應(yīng)送本公司修理.
5. 變送器線路板上設(shè)有電源接線端子(端子下面有“+”“-”標(biāo)記),接線后,端子的卡口外不得有裸銅線
(三) 防腐型(FG600-5、 FG600-6)
FG600-5、FG600-6防腐型靜壓液位計(jì)電纜接觸被測介質(zhì)的材料系聚四氟乙烯.鑒于該材料比金屬材料強(qiáng)度差、硬度低等特點(diǎn),請用戶在運(yùn)輸、拆包裝和儀表安裝過程中,防止儀表受到碰傷、摔損、沖擊和折曲等損壞.另外,使用FG600-5的用戶需注意以下幾點(diǎn):
1. 切勿折曲電纜和損傷電纜表面;
2. 電纜和傳感器、變送器之間不得拉拔;
3. 傳感器外殼材料為PTFE的FG600-5必需加配重(其材料為PTFE或哈氏合金C276),配重安裝時(shí)請將傳感器端部的護(hù)罩旋下,然后手持傳感器將配重旋入,開始旋入時(shí)請注意將螺紋對正.
4. 傳感器和配重一起投入介質(zhì)時(shí),請緩慢設(shè)放,切勿猛然擲入.
五.安裝方式圖
注意:FG600-1、FG600-5的導(dǎo)氣電纜不可過分夾緊和折曲過銳,F(xiàn)G600-1、FG600-5的安裝方式有螺紋連接、法蘭連接和分離式三種,法蘭連接采用GB9119。.6-88。標(biāo)準(zhǔn)中DN50和DN100作為常用規(guī)格.
FG600-3的安裝方式為直裝式螺紋連接,其外螺紋為G11/2〞、G2〞、G21/2〞(分別對應(yīng)于不同的最小靜壓滿量程)。
FG600-4的安裝方式為直裝式法蘭連接,法蘭標(biāo)準(zhǔn)采用GB9119.6-88.標(biāo)準(zhǔn)中DN50和DN80作為常用規(guī)格。
FG600-2、FG600-6的安裝方式為螺紋連接和法蘭連接,法蘭標(biāo)準(zhǔn)采用GB9119.6-88.標(biāo)準(zhǔn)中DN50、DN80作為FG6001-2常用規(guī)格,DN65、DN100作
為L301-6的常用規(guī)格。
上述法蘭常用規(guī)格的主要尺寸如下(單位:mm)
公稱通經(jīng)DN | 法蘭外徑 | 螺栓孔中 心圓直徑 | 螺栓孔直徑 | 螺栓 | 密封面 直徑 | |
數(shù)量 | 螺紋 | |||||
50 | 140 | 110 | 14 | 4 | M12 | 88 |
65 | 160 | 130 | 14 | 4 | M12 | 108 |
80 | 190 | 150 | 18 | 4 | M16 | 124 |
100 | 210 | 170 | 18 | 4 | M16 | 144 |
六.關(guān)于零點(diǎn)和滿度調(diào)節(jié)的說明
液位計(jì)出廠前,已校準(zhǔn)零點(diǎn)和滿度,F(xiàn)場安裝后,若測量傳感器的安裝位置與實(shí)際液位的零位有差異時(shí),可通過變送器內(nèi)的零點(diǎn)電位器調(diào)整來實(shí)現(xiàn)一致。
零點(diǎn)調(diào)整范圍為量程的±5%
滿度調(diào)整范圍為量程的±10%
由于結(jié)構(gòu)條件限制,F(xiàn)G600系列隔爆型液位計(jì)的零點(diǎn)和滿度不能在現(xiàn)場調(diào)節(jié),可通過液位顯示儀調(diào)節(jié)。
負(fù)載特性 電氣連接
最大負(fù)載電阻取決于儀表饋電電壓,陰影所 注 :①當(dāng)有表頭顯示時(shí)
①為正②為負(fù)③為表頭
標(biāo)注的區(qū)域?yàn)楸景残拓?fù)載特性區(qū)域 ④為表頭負(fù)
接線工作完后請注意:
1.務(wù)必把蓋旋緊,直到兩端面重合.對于隔爆型液位計(jì)尚需再將蓋上的緊定螺釘旋緊.
2.將電纜引入口的螺栓旋入,使密封圈抱緊電纜,確保密封.
七.本安型靜壓液位計(jì)防爆系統(tǒng)連接圖
八.傳感器配重
在測流動(dòng)性較大的介質(zhì)時(shí),為防止傳感器劇烈擺動(dòng)、用戶可選用配重,它可起到穩(wěn)定傳感器的作用、標(biāo)準(zhǔn)型配重(直徑42mm)用于一般測量方式;沉底式配重可將液位計(jì)沉入底部亦可利用“配重連接件”的螺栓將其固定在工藝設(shè)施上.
九.電纜卡輪的使用
導(dǎo)氣電纜長度超過50米的液位計(jì)應(yīng)在電纜長度的1 / 2處(或略大于1 / 2處)用卡輪卡緊電纜,通過尼龍繩吊下邊的電纜和傳感器,尼龍繩的另一端固定在井口的適當(dāng)位置.卡輪的卡緊方式如圖所示:電纜在輪溝上繞一圈,其交叉處用不銹鋼件通過四個(gè)不銹鋼螺栓壓緊,尼龍繩一端穿過不銹鋼件的孔并栓緊,另一端上拉至井口固定,卡輪上方的電纜務(wù)必處于松馳狀態(tài).
代理APRESYSPRO1600激光測距望遠(yuǎn)鏡