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The transmitter is equipped with a configurable liquid crystal display. The housing design allows the display to be rotated 90°,
180° and 270°, the housing can be rotated relative to the sensor in the range of 0 - 340°, and the cable insertion direction can be
selected. The display panel includes buttons for scaling the display and selecting the unit of pressure to be measured.
Pressure transmitter APC-2000ALM is designed to measure pressure, vacuum and absolute pressure of gases, vapors and
liquids. The measuring element is a piezoresistive silicon sensor separated from the medium by an isolating diaphragm and
manometer liquid. The electrical signal from the sensor is converted into a digital value compatible with the Modbus RTU
protocol. The housing is made of high-pressure cast aluminum alloy or acid-resistant steel with IP66 protection.
Technical data
Metrological parameters
Accuracy _ ±0,075%
_ ±0,1% for range no. 18
Long-term stability _ accuracy for 3 years
or _ 2 × accuracy for 5 years
Thermal error < ±0,05% (FSO) / 10°C
(0,1% for ranges no. 16, 17, 18)
max ±0,25% (FSO) in the whole compensation range
(0,4% for ranges no. 16, 17, 18)
Thermal compensation range -25...80°C
Error due to supply voltage change 0,002% (FSO) / V
Materials
Wetted parts and diaphragm 316Lss
Casing Aluminium or 316ss
Ingres protection IP66
Operating conditions
Operating temperature range (ambient temp.) -40…85°C
Exd -40…75°C
Medium temperature range -40...120°C
over 120°C – measurement with use an impulse line or diaphragm seal
CAUTION: the medium must not be allowed to freeze in the impulse line or close to the process connection of the transmitter
Electrical parameters
Power supply 12...30 V DC
Current consumption < 80mA
Output MODBUS RTU
Resolution 0,0007% of measuring range
Transmission range 1200m
Address space 1…247 devices address
Transmission speed 1200, 2400, 4800, 9600, 19200,
28800, 38400, 57600, 115200 bps
Transmission parity check no parity, odd, even
Transmission frame 11 bit (8N2, 8E1, 8O1)
10 bit (8N1)
Response time to inquiry 3...20 ms
Factory settings for transmission parameters:
Transmission speed 9600 bps
Parity check even