SMART PRESSURE TRANSMITTER - APC-2000ALW
Features :
- 4…20 mA, 0…20 mA or 0…5 mA output signal + HART protocol
- Programmable range, zero shift, characteristic and damping ratio with local panel keys
- Intrinsic safety certificate (ATEX, IECEx)
- Explosion proof certificate (ATEX, IECEx)
- Marine certificate – DNV, BV
- PED Conformity (97/23/EC)
- Accuracy 0,075% (0,05% on request)
- Gold plated diaphragm (Au)
- MID (Measuring Instruments Directive) – certificate acc. to 2004/22/WE directive and OIML R140:2007 recommendations.
Application and construction
Smart pressure transmitters are applicable to the measurement of the pressure, under pressure and absolute pressure of gases, vapors and liquids. The active sensing element is a piezoresistant silicon sensor separated from the medium by a diaphragm and by specially selected type of manometric liquid. The casing is made of aluminum alloy cast or 316SS stainless steel, degree of protection IP66/IP67. The design of the casing enables the use of a local display, rotation of the display, rotation of the casing by 0–340° relative to the sensor, and a choice of cable direction.
The communication standard for data interchange with the transmitter is the Hart protocol.
Communication with the transmitter is carried out with:
– a KAP-03, KAP-03Ex communicator
– some other Hart type communicators,(*)
– a PC using an HART/USB converter and Raport 2 configuration software.
(*) .eddl files available on www.aplisens.com.
The data interchange with the transmitter enables users to:
- configure the output parameters
- measurement units and the values of the start points and end points at the measurement range
- damping time constant
- conversion characteristic (inversion, user's non-linear characteristic).
- read the currently measured pressure value of the output current and the percentage output control level
- force an output current with a set value
- calibrate the transmitter in relation to a model pressure
Installation
The transmitter can be installed directly on the installation. An universal mounting bracket is provided to transmitter fitting on 2" pipe (the ALmounting bracket, see page IV/ 5). When the pressure of steam or other hot media is measured, a siphon or impulse line should be used. The needle valve placed upstream the transmitter simplifies installation process and enables the zero point adjustment or the transmitter replacement. When the special process connections are required for the measurement of levels and pressures (e.g. at food and chemical industries), the transmitter is provided with an Aplisens diaphragm seal. Installing accessories and a full scope of diaphragm seals are described in detail in the further part of the catalogue. The transmitter's electrical connections should be performed with twisted cable. The place for the communicator should be assigned before the communicator installation.
