KGP5000: Smart Valve Positioner
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
・ 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.
・ Advanced PID control selects suitable parameters according to deviation size, direction.
・ Online valve diagnostics enables the exchange from breakdown maintenance to preventive maintenance through status monitoring.
- Total stroke
- Exposure time to
high temperature - Control time of low travel
- Number of times
a direction is reversed - Exposure time to
low temperature - Partial stroke test
The concept of valve diagnostics using simplified valve signatures
・ 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
SPECIFICATIONS
| Input signal | 4~20mADC | Compliance voltage@20mA Model KGP5000:8.6VDC(Input impedance 430Ohm) Model KGP5003:9.6VDC(Input impedance 480Ohm) 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 | 12~250mm *Strokes above 250mm with special kits | |
| 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 |
Aluminum die-casting with baked acrylic painting IP66 (Common structure) Rc1/4 or 1/4NPT G1/2 , 1/2NPT or M20x1.5 4xM8, 4xM6 |
|
| 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 | 6Nl/min or less@140kPa, 9Nl/min or less@300kPa *at 50% position of full travel |
|
| Double acting type | 16Nl/min or less@400kPa, 20Nl/min or less@550kPa *at balance pressure |
||
| Maximum output capacity | 165Nl/min@140kPa, 290Nl/min@300kPa 370Nl/min@400kPa, 500Nl/min@550kPa |
||
| Accuracy | Position control | Position transmitter output | |
| Linearity Hysteresis |
±1.2％F.S. 0.7％F.S. |
±1.0％F.S. 0.5％F.S. |
|
| Certificates and approvals | Explosion protection |
|
|
| CE marking | EMC directive(2014/30/EU) RoHS directive(2011/65/EU) |
||
| HART communication approval | HART7 *Model KGP5003 only | ||
CONTACT INFORMATION
Head office TEL.81-3-5202-4300
FAX.81-3-5202-4301
change without notice.
Copyright©2017 NIHON KOSO CO.,LTD.
All right reserved.