PDF《Electro-Pneumatic Positioner》

8 0 室外防水型 Weather proof type

1 耐压防爆型 Explosion proof type 结构Enclosure

2 本质安全型 Intrinsically safe explosion proof type

1 直行程执行机构用:标准型 Linear : Feedback for standard lever 反馈方式 Feedback style L 线性Linear 输出特性 Cam characteristics E 等百分比 Equal percentage

2 200 Kpa ( 2Kgf/cm

2 )

4 400 Kpa ( 4Kgf/cm

2 ) 压力表最大刻度 Maximum pressure gauge range

10 1000 Kpa ( 10Kgf/cm

2 ) ― 标准型 Standard type :-20~+80℃ *① H 高温型(选购) High temperature service (option) : 0~+100℃ 使用环境温度 Ambient temperature limits L 低温型(选购) Low temperature service (option) :-50~+60℃ *① *① 耐压防爆型的使用环境温度范围为-20~+60℃,本质安全型的使用环境温度范围为-40~+60℃. In the case of explosion proof type, explosion proof warranty temperature is -20~+60℃. In the case of intrinsically safe explosion proof type, intrinsically safe explosion proof warranty temperature is -40~+60℃.

3 特点适用于小容量及大容量的执行机构 由于采用了载荷控制弹簧,选择相应的弹簧后就能获得最适合于该执行机构的定位器. 耗气量小 放大器的耗气量小、容量大. 可以选择输出特性 由于反馈机械中有凸轮装置,因此可以选择标准特性以外的输出特性. 耐压防爆型可在现场进行调整 由于信号(4~20 mA. DC)输入端接头及线圈部位的封装呈耐压防爆结构,因此在进行检修及行程调整时,可以在现场防爆 区域内拆除定位器外壳. 本质安全的构造有着广阔的适用范围 接线盒及线圈有着本质安全的构造(力矩线圈型号:EP82),因此与专用的齐纳安全栅组合使用能使力矩线圈适用于所有 危险气体的场所(包括

0 区),使用环境温度范围为-40~+60℃. FEATURES USABLE WITH LOW TO HIGH CAPACITY ACTUATORS By adjusting the built-in capacity control spring, the positioner can be made optimum to the given actuator. A LOW AIR CONSUMPTION The pilot valve is low in air consumption and high in capacity. OUTPUT CHARACTERISTICS SELECTABLE Having a cam within the feedback construction, choices other than the standard linear characteristic are available. ANTI-PRESSURE AND EXPLOSION PROOF STRUCTURE MARKING ON-SITE ADJUSTMENT POSSIBLE The anti-pressure and 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. INTRINSICALLY SAFE CONSTRUCTION FOR A WIDE SCOPE OF APPLICATIONS The intrinsically safe construction (torque-coil type: EP82) cover terminals and coil 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 area) ranging from low (-40℃) to high (+60℃) temperature environment. ELECTRO-PNEUMATIC POSITIONER

10 KPa *C OUT1 *A GAUGE *B SUP.*A STROKE 12~100 2-M8 MOUNTING HOLES DRAWING NO. E-EPL801 REV NOTE: FOR SPRING RETURN ACTING ACTUATOR A *1 PROOF TYPE

0 WEATHER PROOF

1 ExmdⅡCT6

2 ExiaⅡCT6 *2 GAUGE TYPE

2 2kgf/cm2 200kPa 2bar 30psi

4 4kgf/cm2 400kPa 4bar 60psi

10 10kgf/cm2 1000kPa 10bar 160psi SERVICE *3 WEATHER PROOF ExmdⅡCT6 ExiaⅡCT6 -20~+80℃ -20~+60℃ -20~+60℃ L -50~+60℃ -40~+60℃ H 0~+100℃ *A *B CONNECTION UNIT kgf/cm2 Bar、psi DESCRIPTION kPa kPa SPECIAL *A AIR CONNECTION Rc1/4 1/4"NPT *B GAUGE CONNECTION Rc1/8 1/8"NPT *C CONDUIT CONNECTION G1/2 1/2"NPT MODEL EPL8 1― L *1 *2 *3 ? ? ? ? ? ? Rc=PT G=PF