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Control systems Positioners and controllers
Applications The SP7-2* can be used with any actuator that conforms to NAMUR, this includes all of the following Spirax Sarco pneumatic actuators:
BVA300 rotary PN1600 series PNS3000 and PNS4000 series
PN9000 series TN2000 series
Materials Part
Material
Finish
Case - Anti-corrosive paint, Black Cover - Anti-corrosive paint to RAL9016
Case and cover
Die cast aluminium
Mounting kits
Stainless steel
-
Follower pin cone
Nylon
-
Technical data Input signal
4-20 mA (split range minimum amplitude 8 mA) or PROFIBUS PA or FOUNDATION Fieldbus
4.4 12
Impedance
Max 485 +/- 15 Ω (for 4-20mA input signal only)
Air supply
1.4 to 6.0 bar (20.3 to 87 psi g)
Air quality
ISO 8573-1:2010 Class 3:3:3
Output pressure
0 to 100% supply pressure
Actuator stroke
20 mm to 150 mm or 55 ° to 90 ° (0.78 to 5.91 inches)
Action
Single acting/fail vent/Double acting
Operating temperature
−40 to 85 °C (0.78 to 5.91 inches)
Air connections
¼ " NPT female
Deviation
≤ 0.5 %
Tolerance band
0.3 to 10 %, adjustable
Configurable dead zone
0.1 to 10 %, adjustable for 4-20 mA, HART and PROFIBUS PA, 0.1 to 5 % for FOUNDATION Fieldbus
Resolution (AD-conversion)
> 16,000 steps
Sampling frequency
20 ms (for 4-20mA input signal only).
Ambient temperature effect
≤ 0.5 % per 10 K
Reference temperature
20 °C (68 °F)
Influence of vibration
≤ 1 % to 10 g and 80 Hz
Degree of protection
IP65
Linear mounting kit - 0.78 kg (1.72 lb) Rotary mounting kit - 0.4 kg (0.88 lb) Positioner (without mounting kits or gauge blocks) - 3.0 kg (6.61 lb)
Weight
SP7-20
4-20 mA or 4-20 mA with HART
Basic positioner options
SP7-21
PROFIBUS PA
SP7-22
FOUNDATION Fieldbus
TI-P706-04 CTLS Issue 7
Page 2 of 8
SP7-20, SP7-21 and SP7-22 Smart Positioner
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