PNEUMATIC POSITIONERS PP981
4Pages

ADCA PNEUMATIC POSITIONERS PP981 DESCRIPTION The ADCATrol PP981 is a pneumatic positioner used for direct operation of pneumatic linear or rotary actuators by means of pneumatic controllers with a 0,2 to 1 bar proportional control signal. The positioner compares the output signal from a controller with the position feedback, and varies a pneumatic output signal to the actuator accordingly. The actuator position is therefore guaranteed for any controller output signal and the effects of varying differential pressure. The positioner features a compact design and a modular construction which allows easy attachment of options such as limit switches, analog feedback modules, manifolds, volume boosters, amongst others. MAIN FEATURES Compact and flexible design. Mounting onto any linear or rotary actuator. Single or double acting. Supply pressure up to 6 bar. Adjustable amplification and damping. Independent adjustment of stroke range and zero position. Resistant to vibration effect in all directions. ATEX approvals. OPTIONS AND ACCESSORIES Module for analog position feedback. Digital position feedback with inductive switches (two or three-wire system). Digital position feedback with microswitches. Attachment kit for linear actuators acc. to IEC 534/NAMUR. Attachment kit with rotary adaptor for rotary actuators acc. to VID/ VDE 3845. Connection manifold with gauges. Volume boosters. VALSTEAM ADCA We reserve the right to change the design and material of this product without notice.

ADCA TECHNICAL DATA GENERAL INPUT SIGNAL Housing: Aluminium finished with DD-varnish grey blue; Cover: impact resistant polyester grey blue; Moving parts of feedback system: AISI 303 /1.4305 or AISI 316Ti / 1.4571 Mounting bracket: AISI 304 / 1.4301 Signal range Stroke range Angular range 8 to 100 mm Linear: 30 º to 120 º Equal percentage: 90 º; from 70 º linear Protection class IP 54 (IP 65 on request) Pneumatic connections OUTPUT SIGNAL Female threaded ISO 228 G 1/8” Output to actuator Single acting without gauges: approx. 0,7 kg Single acting with gauges: approx. 0,8 kg Double acting:...

ADCA OPTIONS AND ACCESSORIES INDUCTIVE LIMIT SWITCH (TWO-WIRE SYSTEM) Input Stroke / angle from actuator via positioner feedback lever INDUCTIVE LIMIT SWITCH (THREE-WIRE SYSTEM) 2 inductive proximity sensors acc. to DIN 19 234 resp. NAMUR for connection to a switching amplifier with an intrinsically safe control circuit a) Current consumption Permissible line resistance Gain: continuously adjustable from 1:1 to approx. 7:1 Switching differential: < 1 % Switching point repeatability: < 0,2 % Supply voltage US Residual ripple Residual ripple Vane clear: > 3 mA Vane interposed: < 1 mA Supply...

ADCA COMMON DATA FOR OPTIONS AND ACCESSORIES GENERAL IP rating Mounting Electrical connections AMBIENT CONDITIONS Ambient temperature j) Protection class IP 54; IP 65 on request Attachment to positioner Relative humidity Line entry: 1 or 2 cable glands M20 x 1,5 (others with Adapter AD-...) Cable diameter: 6 to 12 mm Screw terminals: max. 2.5 mm² (AWG14) Operating conditions According to IEC 654-1; The device can be operated at a class D2 location ELECTROMAGNETIC COMPATIBILITY (EMC) Operating conditions Industrial environment Transport and storage - 40 ºC to 80 ºC temperature j) Without...