The optional KINETROL I/P Controller is mounted in place of the standard diaphragm housing on the side of the positioner case. The positioner can still be mounted in any attitude and gives an angular output position which is proportional to the input current control signal between 4 and 20 milliamps. The 4–20 mA signal is converted to an air pressure by a coil and magnet and flapper valve arrangement. This air pressure controls the positioner in the normal way. Air supply to the unit is taken from the same constant 80 psi/5.5 bar supply as the positioner, no pressure reduction required. Zero and range adjustment is done within the positioner in the same way as with a standard pneumatic positioner. No adjustment is necessary
within the I/P Controller. The cover is removed only to connect the two wires - this is not necessary with the DIN plug option.
Specification
Electrical control 4 - 20 mA signal
Coil impedance 20 ohms typical
Cable entry 16mm conduit or gland
(mini DIN plug, IP65 with Pg9 cable gland, 6 to 8mm dia optional)
Air supply 80 psi / 5.5 bar nominal
Air entry G1/8” (fitted with 6mm pipe dia. push-in connector
Linearity 1.5% *
Hysteresis less than 1% *
Sensitivity/deadband less than 1% *
Supply pressure 0.2% psi between 80 and 60 psi influence
Quiescent air 2.5 - 3.5 l/min free air consumption
Working -20°C to 80°C temperature range
Instrument quality dry clean air obligatory (class 3.4.4 ISO 8573.1)
* These figures are typical when fitted to a Kinetrol positioner and actuator.
I/P controller hazardous area
Kinetrol offers two optional I/P converters which are explosion proof and intrinsically safe certified for CENELEC zones 1 & 2 and NEC and CSA CLASS I DIVISION use. Certificated as follows:
- CENELEC explosion proof EExd II T6 intrinsically safe EEx ia II C T4/T5/T6
- NEC FM explosion proof CLI/DIV 1/GRP B C D & CSA FM intrinsically safe
- CLI/DIV 1/GRP A B C D E F G
- CSA explosion proof CLI/DIV 1/GRP B C G
Specification - hazardous area
Electrical control signal 4 - 20 mA
Input resistance 260 ohms at 20°C
Cable entry EExd - M20 x 1.5 conduit entry
FM/CSA - 1/2” NPT conduit entry
Air supply 80 psi / 5.5 bar nominal
Air entry EExd (AP & MP) G1/4”
(HP) 3/8” NPT
Supply pressure regulation 20 to 150 psi/1.4 to 10 bar
Working temperature range -40°C to 85°C
Instrument quality dry clean air obligatory (class 3.4.4 ISO 8573.1)
