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An ABB positioner works by comparing the control signal to the actual valve position, using a mechanical feedback mechanism like a cam and lever. Based on this comparison, it adjusts the pneumatic pressure to the actuator to move the valve to the commanded position. For digital positioners, internal controllers like PID loops are used to precisely calculate the required air pressure, which is then converted from an electrical signal (e.g., 4-20mA) into a pneumatic output.
Positioners available with or without HART protocol. In some cases where the positioner response needs to be almost instantaneous (without delays), the positioner without the HART protocol is much better. Unfortunately, the Hart protocol reduces the positioner's response by a few milliseconds. For some device like anti-surge valve is forbiden to use it.
TZIDC - intelligent, configurable with indicator and operator panel - Part number V18345-2020120001 / - Air pipe: Thread 1/4-18 NPT / Comunication - FSK module for HART communication / Display - on board
TZIDC-200 digital positioner, with flameproof enclosure, intelligent, software configurable with Local Communication Interface (LCI) and HART communication - Part number V18348-20123310110 / - Air pipe: air pipe: Thread 1/4-18 NPT/ Comunication - analog or digital position feedback / display integrated in the enclosure cover
TZIDC-200 digital positioner, with flameproof enclosure, intelligent, software configurable with Local Communication Interface (LCI) and HART communication - Part number V18348-10113310110 / - Air pipe: air pipe: Thread 1/4-18 NPT/ Comunication - analog or digital position feedback / display integrated in the enclosure cover/Double acting, fail safe
TZIDC-200 digital positioner, with flameproof enclosure, intelligent, software configurable with Local Communication Interface (LCI) and HART communication - Part number V18348-20113200110 / - Air pipe: air pipe: Thread 1/4-18 NPT/ Comunication - analog or digital position feedback / display integrated in the enclosure cover/Double acting, fail safe
TZIDC Digital positioner, intelligent, configurable with indicator and operator panel - Part number V18345-2020120001 / - Air pipe: air pipe: Thread 1/4-18 NPT/ Comunication - FSK module for HART communication / Single acting, fail freeze
EDP300 Position Master EDP300 digital positioner - Part number EDP300-Y0H2F2D / - Air pipe: air pipe: Thread 1/4-18 NPT female Comunication - HART digital communication and 4 ... 20 mA / Double acting, fail freeze
EDP300 Position Master EDP300 digital positioner - Part number EDP300 Y0H1S2D / - Air pipe: air pipe: Thread 1/4-18 NPT female Comunication - HART digital communication and 4 ... 20 mA / Double acting, fail freeze
AV1 Pneumatic positioner - Part number AV1220000 / -0.2 to 1.86 bar (3 to 27 psi), standard temperature range –40 to 82 °C (–40 to 180 °F)
AV1 Pneumatic positioner - Part number AV1120000 / 0.2 to 1 bar (3 to 15 psi), standard temperature range –40 to 82 °C (–40 to 180 °F)
AV2 Electropneumatic positioner- Part number AV2320010 /4 to 20 mA input, 25.4 to 101.6 mm (1.0 to 4.0 in) or 90° rotation / Standard with drive arm
TEIP11 I/P Converter, signal converter for standard signals, without power stage / Part number V18312H - 2222113 /4 to 20 mA 3 ... 15 psi / Direct action / Adjusted to 4 bar (60 PSI)
I/P signal converter/ Part number 22-06-65 /4 to 20 mA 3 ... 15 psi / Direct action
TZID intelligent, configurable with display and operating panel signal input 4 ... 20 mA, two-wire - Part number 18341-A1212202/001 / - Air pipe: air pipe: Thread 1/4-18 NPT/ Comunication - analog or digital position feedback / display integrated in the enclosure cover













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