EP 3000電-氣定位器
1、概要
EP 3000系列電氣閥門定位器與氣動執(zhí)行機構配套使用，輸入4~20mA DC的信號轉(zhuǎn)換輸出空氣壓力，控制執(zhí)行機構的動作。同時根據(jù)執(zhí)行機構的行程進行反饋，從而使執(zhí)行機構的行程能按控制信號進行*定位。
EP3000系列電乞閥門定位器能用于單動作型和雙動作型執(zhí)行機構。
Electro-Pneumatic Positioner
1、GENERAL
The EP3000 Series Positioner,mounted on a pneumatic actuator,moves the actuator by receivingDC4~20mA signals from a controller.Also,the function of detecting and feeding back the actuator displacement provides accurate position in response to DC4~20mA signals.
The EP3000 can be used with both single and double action on actuators.
2、標準規(guī)格 2、STANDARD SPECIFICATIONS
2-1．編碼 2-1.CODE NO.
EP
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系 列
Series
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3
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0
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0
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0
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防爆（防護）結構
Ex.enclosure
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1
2
3
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耐壓防爆型（隔爆型）d ExdlllBT6 Explosion proof type
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本質(zhì)**型（本安型）I ExiallCT6 Intrinsically safe explosion proof type
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室外防水型（增安型）e ExellT6、lP55 Weather proof type
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反饋（動作）方式
Feedback style
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1
2
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直行程執(zhí)行機構用：標準型Linear:Feedback for standard lever
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角行程（直連式回轉(zhuǎn)軸）執(zhí)行機構用:標準型Rotary:Feedback for lever
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作用型式Action type
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1
2
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單動作型執(zhí)行機構用（單作用）For single acting type
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雙動作型執(zhí)行機構用（雙作用）For double acting type
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輔件Accessories
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21
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帶關聯(lián)匹配 氣壓控制器Matched decompressor valve
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例：Example:
EP 3111： 表示 隔爆型、直行程、單作用、電氣閥門定位器。
EP 3211： 表示 本安型、直行程、單作用、電氣閥門定位器。
EP 3122： 表示 隔爆型、角行程、雙作用、電氣閥門定位器。
EP 3222： 表示 本安型、角行程、雙作用、電氣閥門定位器。
EP 3112： 表示 隔爆型、直行程、雙作用、電氣閥門定位器。
EP 3212： 表示 本安型、直行程、雙作用、電氣閥門定位器。
EP 3311： 表示 增安型、直行程、單作用、電氣閥門定位器。
EP 3111-21：表示 隔爆型、直行程、單作用、電氣閥門定位器帶關聯(lián)匹配組合 氣壓控制器。
注：耐壓防爆型（隔爆型）的使用環(huán)境溫度范圍為-20~+80℃。
本質(zhì)**型（本安型）的使用環(huán)境溫度范圍為-40~+60℃。
In the case of explosion proof type,temperature range is -20~+80℃.
In the case of intrinsically safe explosion proof type,temperature range is -40~+60℃.
2-2.技術參數(shù) 2-2.TECHNICAL DATA
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系 列 Series
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EP 3000
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輸入信號 Input signal
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4~20mA DC The split range is possible by span
可進行分程控制 adjustment and zero adjustment
調(diào)整范圍：4~12、12~20mA DC Adjustment range:4~12、12~20mA DC
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輸入阻抗Input impedance
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250Ω±5%at25℃
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輸出特性Output Characteristic
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線性（標準型） Linear(standard)
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放大器 Relay
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單動作型執(zhí)行機構和雙動作型執(zhí)行機構兼用，Non-bleeding type.
單動作正作用型放大器易變換成反作用型放 Single acting and double acting types
大器（輸入信號增加，輸出氣壓相應減小） are available.
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氣源壓力 Air supply
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0.14~0.7MPa(140~700KPa)
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輸出壓力 Output pressure
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0~0.7 MPa(0~700KPa)
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耗氣量 Air consumption
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輸出氣壓50%時的耗氣量?！?/span>At output air pressure 50%
單動作型 Single acting type:5NI/min at 140 kpa air supply
雙動作型 Double acting type:15NI/min at 400kpa air supply
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*處理容量Max.capacity
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輸出側(cè)氣源放空時 Capacity when output is atmospheric venting.
單動作型 Single acting type:175NI/min at 140kpa air supply
雙動作型 Double acting type:400NI/min at 400kpa air supply
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性 能Performance
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單動作型執(zhí)行機構 For single acting actuator
直 線 性 Linearity∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙±1.0%of Full stroke
滯 后 Hysteresis∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙0.5%of Full stroke
靈 敏 度 Response level∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙0.1% of Full stroke
重 復 精 度 Repeatability∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙0.2% of Full stroke
氣源壓力變動誤差 Supply pressure effect∙∙∙∙∙∙∙∙∙∙∙0.1%10Kpa
雙動作型執(zhí)行機構 For double acting actuator
直 線 性 Linearity∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙±1.5% of Full stroke
滯 后 Hysteresis∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙0.8% of Full stroke
靈 敏 度 Response level∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙0.2% of Full stroke
重 復 精 度 Repeatability∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙0.3% of Full stroke
氣源壓力變動誤差 Supply pressure effect∙∙∙∙∙∙∙∙∙∙∙0.4%10Kpa
上述各數(shù)值是指在不連接閥門的情況下執(zhí)行機構的性能。
The above data represent the performance of the positioner on an actuator without a valve.
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氣源接口 Air connection
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Rc 1/4 NPT1/4
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電氣接口 Wiring connection
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G 1/2 NPT1/2
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環(huán)境溫度Ambient temperature
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標準型 Standard type -20~+80℃
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濕度范圍Ambient humidity range
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10~90%RH
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結構形式Enclosure
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耐壓防爆型（隔爆型）d Ex dllBT6 Explosion proof type(Ex d ll BT6)
本質(zhì)**型（本安型）I Ex iallCT6 Intrinsically safe explosion proof type(Ex iall CT6)
室外防水型（增安型）e Ex ellT6、lp55、lp65 Waterproof type(Ex ellT6、lp55、lp65)
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附屬機構Standard auxiliary
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自動-手動切換裝置Auto-Manual switch
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外殼材料 Housing material
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鋁合金Aluminum alloy
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表面涂層 Coating
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噴塑Spray plastics
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標準涂層色 Coating colors
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黑沙色 Black of gray
黑 色 Black
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重 量 Approx.weight
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2.3kg~3kg
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附加規(guī)格Optionalspecifications
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根據(jù)客戶要求制作Available upon request
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電氣接口 Wiring connection
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1/2NPT(室外防水型For waterproof only)
耐壓填料式Packing cable gland(耐壓防爆型For explosion proof only)
密封接頭式Sealing fitting(耐壓防爆型For explosion proof only)
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**柵Safety device
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齊納**柵Zener barrier(Exia ll C)
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壓力表刻度Pressure gauge
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Mpa、Kpa、Bar、Psi
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輸出特性Output characteristic
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等百分比Equal percentage
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氣源接口Air supply connection
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1/4NPT
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3、特點
①適用于小容量及大容量的執(zhí)行機構
由于采用了載荷控制彈簧，選擇相應的彈簧后就能獲得*適合于該執(zhí)行的定位器。
②耗氣量小
放大器的耗氣量小、容量大。
③可以選擇輸出特性
由于反饋機械中有凸輪裝置，因此可以選擇標準特性以外的輸出特性。
④各種反饋方式對應的型號
只要更換凸輪裝置，就可以用于以下對應的執(zhí)行機構。
＊直行程執(zhí)行機構：標準型∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ EP 3 1
＊角行程執(zhí)行機構：標準型∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙ EP 3 2
⑤易變換成反作用放大器
單作用執(zhí)行機構在需要反作用控制時，正作用型放大器很容易變換成反作用型放大器。
⑥耐壓防爆型可在現(xiàn)場進行調(diào)整
由于信號（4~20mA.DC）輸入端接頭及線圈部位的封裝呈耐壓防爆結構，因此在進行檢修及行程調(diào)整時，可以在現(xiàn)場防爆區(qū)域內(nèi)拆除定位器外殼。
⑦本質(zhì)**的構造有著廣闊的適用范圍
接線盒及線圈有著本質(zhì)**型的構造，因此與專用的齊納**柵組合使用能使力矩線圈適用于所有危險氣體的場所（包括0區(qū)），使用環(huán)境溫度范圍為-40~+60℃。
3.FEATURES
①USABLE WITH SMALL AND LARGE CAPACITY ACTUATORS
By adjusting the built-in capacity control spring,the positioner can be made optimum to the given actuator.
②LOW AIR CONSUMPTION
The relay is low in air consumption and large in capacity.
③OUTPUT CHARACTERISTICS SELECTABLE
Having a cam within the feedback construction,choices other than the standard linear characteristic available.
④COMPATIBLE WITH VARIOUS FEEDBACK TYPES
Applicable to the following types by simply exchanging the cam block.
*For Linear type actuator:Feedback for Standard lever type∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙EP 3 1
*For Rotary type actuator:Feedback for Standard lever type∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙∙EP 3 2
⑤REVERSE ACTION RELAY EASILY AVAILABLE
The positive acting relay can be used as a reverse action relay when combined with a single acting actuator that requires a reverse action control.
⑥EXPLOSION PROOF STRUCTURE MARKING ON-SITE ADJUSTMENT POSSIBLE
Explosion proof construction,with the terminal and coil blocks enclosed together in one package,makes it possible to remove the positioner cover for inside inspection or span adjustment even in an explosive ambient.
⑦INTRINSICALLY SAFE CONSTRUCTION FOR A WIDE RANGE OF APPLICATIONS
The intrinsically safe construction covers terminals and clil as one package.This,combined with the adoption of the specified zener barrier,makes the unit applicable in all hazardous gas location(including Class 0 zone)ranging from low(-40℃)to high(+60℃)temperature environment.V
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