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PRESYS
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Instruments
Code Example:
1) DCY - 2057 - 6 - 1 - 1 - 8 - 1 - 2 - 1 - 4 - 1 - 1 - 1 - 0 - 0
This code defines a DCY - 2057 Controller with two pressure inputs, the first in
the 0 to 100 psi range, gage pressure and use with air, the second in the 0 to 500 psi
range, gage pressure and use with fluid. It provides output 1 with 4 to 20mA, output 2
with SPST relay, outputs 3 and 4 with SPDT relay. Power supply in the 90 to 240VAC
ou 130 to 340VDC range, does not use communication and is intended for use in a
sheltered place. The use of such optional modules allows a practical application such
as PID control for channel 1 (output 1) and ON-OFF control for channel 2 (output 2).
Outputs 3 and 4 can be configured as high, low or deviation alarm outputs for
channel 1 or channel 2.
1.3 - Technical Specifications
Inputs:
• One or two pressure inputs for gage, absolute or vacuum pressure. Ranges
from 0 to 250 mmH
psi, 0 to 100 psi, 0 to 250 psi, 0 to 500 psi and 0 to 1000 psi for gage pressure.
Same ranges beginning from 15 psi for absolute pressure. VACuum ranges
from 0 to 1 atm.
• Ranges up to 15 psi used with air and inert gases. From 15 psi up to 250 psi,
sensors are available for air or fluids. Above 250 psi they are sealed for use
with fluids compatible with 316L stainless steel. Note: the sersor for fluids also
accepts air / gases, but the opposite is not allowed.
• Auxiliar universal input, for the single pressure input version, configurable for
thermocouple (J, K, T, E, R, S, under ITS - 90), RTD Pt - 100 under DIN 43760,
4 to 20mA, 0 to 55mVDC, 1 to 5VDC, 0 to 10VDC. Input impedance of 250Ω for
mA, 10MΩ for 5VDC and 2MΩ above 5VDC.
• Table 1 shows the pressure range limits, thermocouple and RTD temperature
range limits and the resolution for the linear input sensors.
DCY - 2057 Pressure Controller
O (0 to 10"H
O), 0 to 1 psi, 0 to 5 psi, 0 to 15 psi, 0 to 30
2
2
Introduction
Page 4
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