Model KGP5000 Koso Vietnam: Smart Valve Positioner

KGP5000 KGP5000 series smart valve positioner is a control device mounted on the pneumatic actuator for control valve, which positions a control valve according to a 4 to 20mA electric input signal from a higher-level control system or a control device.

Position feedback control system which receives feedback signal mapped to the desired valve travel and compares both input signal and feedback signal enables accurate positioning of a control valve.

In addition, it is possible to use this positioner in order to operate various types of pneumatic actuator such as single and double acting, linear and rotary motion actuators.

Furthermore, the positioner utilizing digital techniques performs the functions of advanced PID controller, local user interface using LCD, diagnostics utilizing sensing techniques with potentiometers and internal pressure sensors.

Such features enable an easy installation and calibration, an effective monitoring and an efficient process management relevant to operations and maintenance.

FEATURES

Large-screen LCD ＆ easy configuration by 'Full autotune'
	*	Local user interface with large graphic LCD by itself enables performing all the operations such as setup, adjustment, status monitoring, execution of diagnostics, etc.

	*	The function of 'full autotune' can set automatically zero & span point, and select optimal PID control parameters by automatic tuning.

Stable valve control using advanced control algorithm
	*	Advanced PID control selects suitable parameters according to deviation size, direction.

	*	Preset values of PID parameters are provided suitable for linear or rotary actuators.

Diagnostics and alarm functions for maintenance cost reduction
	*	Online valve diagnostics enables the exchange from breakdown maintenance to preventive maintenance through status monitoring.

	*	Offline diagnostics checks control valve condition through pressure sensors. The concept of valve diagnostics using simplified valve signatures


All-in-one design for inventory-related troublesome reduction
	*	Latest digital communication "HART7" compliant
	*	Built-in position transmitter function
	*	Applicable to both single and double acting actuator only through the switching between single and double mode on pilot relay
Attachment to several kinds and types of actuators

SPECIFICATIONS

Input signal	4~20mADC	Compliance voltage 13VDC@20mA Split range available
Transfer characteristics	Linear / EQ / QO / User custom setup (19 points)
Position transmitter output	4~20mADC	Power supply 17~31VDC Alarm output *according to NAMUR043
Attachment	Linear / Rotary / actuators according to IEC60534-6 VDI/VDE3845
Travel range	Linear	12~100mm *Strokes above 100mm with special kits
Travel range	Rotary	40~100deg
Action	Single / Double　*Pilot relay is available on direct acting only
Supply pressure	140~800kPa (1.4~8bar , 20~116psi)
Enclosure	Housing Protection code Pneumatic connection Electrical connection Mounting threads Explosion protection	Aluminum die-casting with baked acrylic painting IP66 (Common structure) Rc1/4 or 1/4NPT G1/2 , 1/2NPT or M20x1.5 4xM8，4xM6 Exd IIC T6
Weight	3.0kg(without pressure gauge block)，3.3kg(with pressure gauge block)
Operating temperature range	Non-explosion type Explosion type LCD	-40~80degC (-40~176degF) According to each explosion standard -20~70degC (-4~158degF)
Operating humidity range	5~95%R.H.(non-condensed)
Air consumption	Single acting type	5Nl/min or less@140kPa, 6Nl/min or less@300kPa
Air consumption	Double acting type	12Nl/min or less@400kPa, 16Nl/min or less@550kPa
Maximum output capacity	165Nl/min@140kPa, 370Nl/min@400kPa
Accuracy		Position control	Position transmitter output
Accuracy	Linearity Hysteresis Resolution/Dead band	+/-1.2%F.S. 0.7%F.S. 0.1%F.S. or less	+/-1.0%F.S. 0.5%F.S. -