PDF《Electro-Pneumatic Positioner》

1 STANDARD SPECIFICATION SS-CE-EPL800-A MAR.

2004 EPL800 电―气定位器 Electro-Pneumatic Positioner 概要GENERAL EPL800 系列电―气定位器与气动执行机构配套使 用,输入 4~20 mA DC 的信号转换成输出空气压力, 控制执行机构的动作.同时根据执行机构的行程进行反 馈,从而使执行机构的行程能按控制信号进行精确定 位. EPL800 系列电―气定位器仅能用于单动作型执行 机构. The EPL800 Series Positioner, mounted on a pneumatic actuator, moves the actuator by receiving DC 4~20 mA signals from a controller. Also, the function of detecting and returning the actuator displacement provides accurate positioning in response to DC 4~20 mA signals. The EPL800 can be used with spring-return acting actuators only. 标准规格 STANDARD SPECIFICATIONS 系列Series EPL800 输入信号Input signal 4~20 mA DC 可进行分程控制 调整范围:4~

12、12~20 mA DC The split range is possible by span adjustment and zero adjustment. Adjustable range: 4~12, 12~20 mA DC. 输入阻抗Input impedance

250 Ω±5% at 25℃ 输出特性Characteristic 线性 Linear 气源压力Air supply 140~700 KPa 耗气量Air consumption 输出气压 50%时的耗气量. Output air pressure 50% 单动作型 Single acting type : 5Nl / min at

140 Kpa air supply 最大处理容量 Max. capacity 输出侧气源放空时 Capacity when output is atmospheric venting. 单动作型 Single acting type : 175Nl / min at

140 Kpa air supply 性能Performance 单动作型执行机构 For single acting actuator 直线性Linearity…1.0% of Full stroke 滞后Hysteresis…0.5% of Full stroke 灵敏度Response level…0.1% of Full stroke 重复精度Repeatability…0.2% of Full stroke 气源压力变动误差 Supply pressure effect…0.1%/10 Kpa 上述各数值是指在不连接阀门的情况下执行机构的性能.在连接阀门的情况下,其性能 请参照相应的 KOSO 控制阀标准说明书. The above represents the performance of the positioner on an actuator without a valve.For the performance of the complete unit with a valve and an actuator, see KOSO STANDARD SPECIFICATION. 气源接口Air connection Rc 1/4 电气接口Wiring connection G 1/2 环境温度Ambient temperature 标准型 Standard type…20~+80℃ 高温型(选购) High temperature service (option)0~+100℃ 低温型(选购) Low temperature service (option)50~+60℃ 湿度范围Ambient humidity range 10~90% RH 结构形式Enclosure 室外防水型 Weather proof type ( IP65 ) 耐压防爆型 Explosion proof type ( Ex md Ⅱ CT6 ) 防爆合格证号:国仪检

01171 本质安全型 Intrinsically safe explosion proof type ( ExiaⅡ CT6 ) 合格证号:国仪检

01172 2 附属机构Standard anicillary 自动 ― 手动切换装置 Auto-Manual change 外壳材料Housing material 铝合金 Aluminum alloy 表面涂层Coating 环氧树脂 Epoxy resin group paint 标准涂层色Coating colors 本体 Body 墨绿 Dark green 外壳 Cover 浅灰 Light gray 重量Approx. weight 2.5 Kg. 附加规格Optional specifications 根据客户要求制作. Available upon request. 电气接口Wiring connection 1/2 NPT ( 室外防水型 For weather proof only ) 耐压填料式 Packing cable gland (耐压防爆型 For explosion proof only) 密封接头式 Sealing fitting (耐压防爆型 For explosion proof only) 安全栅Safety device 齐纳安全栅 Zener barrier ( ExiaⅡC ) 输入信号Input signal 10~50 mA DC ( 100Ω ) 压力表刻度Pressure gauge Kpa G、Bar、Psi 输出特性Cam characteristic 等百分比 Equal percentage 气源接口Air connection 1/4 NPT CODE NO. EP ― L 单动作型执行机构用 For spring return type 型号Type 系列Series