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PRESYS
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Instruments
Control outputs:
. Analog output 4 to 20mAdc, 1 to 5VDC, 0 to 10VDC, use of optional cards with
plug-in fitting foreseen for up to two 300 VAC modules galvanically isolated from
inputs and power supply. Maximum load of 750Ω.
. SPST relay output with 3A capacity at 220VAC.
. Open collector voltage output (24VDC, 20mA maximum with isolation).
. Solid-state relay output (2A 250VAC with isolation).
Alarm outputs:
. SPST relay output with 3A capacity at 220VAC.
. SPDT output relay with 3A capacity at 220VAC.
. Open collector voltage output (24VDC, 20mA maximum with isolation).
. Solid-state relay output (2A 250VAC with isolation).
Serial communication:
RS-232 or RS-422/485 with isolation at 50VDC, as an optional module with
plug-in fitting independent from outputs.
Engineering Units:
psi, atm, inH
mmH
O.
2
Indication:
Two red display sets with four digits which can be jointly configured with the
decimal point.
Configuration:
By front panel pushbuttons and internal jumpers.
Scanning time:
Standard 130 ms, for input indications within the -999 to 9999 span. Display
updating at each 0.5 second.
Accuracy:
± 1 % of full scale for 0 to 250 mmH
± 0.1% of full scale for other pressure ranges.
± 0.1% of full scale for TC, RTD inputs, mA, mV, VDC.
± 0.5% of full scale for analog control output.
Linearization:
± 0.1% for RTD and ± 0.2% for TC.
DCY - 2057 Pressure Controller
2
O, kgf/cm
, mH
2
2
O, inHg, mmHg, cmHg, bar, mbar, kPa and
O range.
2
Introduction
Page 6
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