4.4.7
Control valves
Positioners and controllers
SP500
Electropneumatic Smart Positioner
Local regulations may restrict the use of this product to below the conditions quoted.
In the interests of development and improvement of the product, we reserve the right to change the specification without notice.
© Copyright 2015
TI-P343-34
CH Issue 4
Description
The SP500 smart valve positioner is a loop powered device
that is able to drive linear and quarter turn pneumatic valves.
A 4-20 mA input signal determines the valve set point.
Precise control is maintained through valve position feedback
that automatically varies the pneumatic output pressure to
overcome the effects of stem friction and flow forces to maintain
desired valve position. Indication of valve position is provided
through a continuous digital display of % travel. Valve position
feedback is retrieved by means of a non contact technology based
on Hall effect. The pneumatics are based on piezovalve technology
- Therefore, high resolution, high reliability, vibration insensitivity
and extremely low air consumption is guaranteed at steady state.
The SP500 includes many smart functions that can be fully
programmed through menu driven software using an integral
keypad and LCD alphanumeric data. Valve commissioning is
simplified through an autostroke routine and LCD data of
programming status, software travel switch status, mA input signal
and valve diagnostics data. Moreover, the absence of mechanical
linkages between the valve stem and the positioner, drastically
simplifies and reduces the time required for the mounting
procedure. The SP500 is supplied with a NAMUR standard
mounting kit for attachment to yoke or pillar mounted actuators.
For quarter turn valves, a mounting kit compliant to VDI / VDE 3845
is supplied.
The SP500 smart valve positioner supports optional expansion to
include the HART
®
communication protocol, enabling complete
configuration using a PC or handheld device
Air supply
The SP500 smart positioner must be provided with a high
quality air supply. A Spirax Sarco MPC2 filter regulator with
coalescing filter or equivalent must be used. A fixing kit is
available to mount the MPC2 filter regulator onto the actuator.
For further product data regarding the MPC2 see Technical
Information sheet TI-P054-04.
Applications
The SP500 can be used with the following pneumatic actuators:
PN1000 and PN2000 series
PNS3000 and PNS4000 series
PN9000 series
For th
he
e
progra
am
m m
ma
a b
bl
l e
functio
e
o n
n s
ss
se
ee
page 2
e
2
SP500 with front cover closed
SP500 with front cover removed
Technical data
Input signal range
Minimum input signal
Air supply pressure
Communication protocol
4 - 20 mA nominal
3.4 mA
1.4 - 7.0 bar
(5-10 psi above spring range pressure)
HART
®
communication protocol
superimposed over dc current signal
Air supply must be dry, oil and dust free
to ISO 8573-1 class 2:3:1
Air quality
Output pressure
Stroke range
0 to 100% supply pressure
10 mm to 100 mm
5° to 120°
Single action/fail vent
-10°C to +80°C
4.2 normal m
3
/ h at 1.4 bar g
8.5 normal m
3
/h at 6.0 bar g
Less than 0.016 normal m
3
/ h
Screwed 1⁄4" NPT
M20
Spring clamp terminals for
0.2 to 1.5 mm2 wire
IP65
Linear, Equal % (ratio 1:50) or
Fast opening (ratio 50:1)
0.1% F.S. (Full Scale)
4 - 20 mA retransmission
of valve position
1 x normally closed
1 x normally open
2.2 kg
Linear valves
Quarter turn valves
Optional extras
Gauge block
Retransmission
and switch board
Power supply
board
HART
®
board
Materials
Part
Case and cover
Magnet bracket
Complete manifold block with two
two pressure gauges (supply pressure
and pressure to the actuator
4 - 20 mA valve position retransmission
and 2 adjustable software switches
Allows 4 wire configuration:
2 for 4 - 20 mA input signal and
2 for independent 24 V power supply
reducing positioner impedance to 50 Ω
Enables communication using the
HART
®
protocol
Material
Finish
Die cast aluminium
Anti-corrosive paint to
RAL5010
Die cast aluminium
Action
Operating temperature
Maximum air flow
Steady state air consumption
Air connections
Cable gland
Electrical connections
Enclosure rating
Characteristics
Resolution (maximum)
4 - 20 mA retransmit (optional)
Software travel
Two software configured
switches (optional) travel switches
Shipping weight
