OMC RE20 - Product Description; General; Main Features and Functions

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Installation
,
O
p
eration and Maintenance Manual ManRE20en Rev.06/2022
OMC S.p.A: Via G. Galilei, 18 - 20060 - Cassina de Pecchi (MI) - ITALY - www.omcvalves.com - Tel.: (+39) 02.95.28.468
2. Product Description
2.1 General
RE20 Smart Valve Positioner accurately controls valve stroke in response to an input signal of
4~20mA from the controller. Built-in micro-processor optimizes the positioner’s performance and
provides unique functions such as Auto-Calibration, PID Control.
2.2 Main Features and Functions
 LCD display enables users to monitor the positioner status.
 User will easily understand the method of using 4 buttons because it work same in all versions of
firmware interfaces.
 When unexpected situation like momentary blackout happens, our positioner boot-time only take
0.5 second and this can minimize the travel of valve which consequentially increase the safety of
system.
 Positioner operates normally even there are sudden changes in supply pressure and / or high
vibration environment.
 The method of Auto Calibration is very simple.
 As an advantage of having very low air consumption, It could greatly reduce operating costs in
large-scale plants.
 It is compatible with most of controllers.
 Orifices can be installed even in the field to minimize the hunting occurrence and optimize
operating conditions.
 Valve system becomes more stable by outputting analog feedback signal.
 Different valve characteristics can be adjusted – Linear, Quick Open, Equal Percentage, and
User Set which user can make 5 or 21 points characterizations.
 Tight Shut – Close and Shut - Open can be set.
 PID parameters can be adjusted in the field without any additional communicator.
 Split range 4~12mA or 12~20mA can be set.
 Operating temperature for positioners is -30 ~ 85℃ (Please check certified explosion proof
temperature in case of Ambient temperature)
 Hand calibration function can set Zero point or End point manually.
 It has IP66 protection grade.
 Polyester powder coating resists the corrosion process.
 Maintenance of the positioner is easy because of modularized inner structure.