Description
DD-I pressure transmitters are designed for measuring and converting gauge pressure, vacuum pressure, and pressure-vacuum of compressed air, as well as non-aggressive and non-crystallizing (non-hardening) media.
The DD-I pressure transmitter converts pressure into a unified output signal: DC current, DC voltage, or a digital signal via RS485, CAN interfaces.
DD-I-1.00 and DD-I-09 pressure transmitters differ in terms of reference accuracy, output signal type, process connection size, and resistance to mechanical stress and climatic influences.
DD-I pressure transmitters are supplied with valve blocks.
Applications
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Railway transport (registration systems, SAUT)
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Submarine and surface transport
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Test stands
Operating media
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Liquids
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Steam
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Steam-gas mixtures and gases (including gaseous oxygen and oxygen-containing gas mixtures)
Measured medium temperature: –50 … +125 °C
Output signal: RS485, CAN
Time between verifications (MTBV): 5 or 6 years
Warranty period: 3 years
Types and Measurement Ranges
DD-I-09
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Gauge pressure: 60 kPa … 100 MPa
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Gauge pressure (relative to atmospheric): 60 kPa … 2.4 MPa
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Pressure-vacuum (vacuum side): 100 kPa
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Vacuum pressure: 100 kPa
DD-I-1.00-01/04/05/06/07/08
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For DD-I-1.00-01(M), DD-I-1.00-05, DD-I-1.00-06:
0 … 0.98 MPa -
For DD-I-1.00-04(M), DD-I-1.00-07, DD-I-1.00-08:
0 … 1.0 MPa
Output signal: RS485, CAN
Mechanical stress resistance (per GOST R 52931): P2
Measurement range:
0 … 10.0 MPa (for DD-I-1.00-01(M), DD-I-1.00-05, DD-I-1.00-06, DD-I-1.00-04(M), DD-I-1.00-07, DD-I-1.00-08)
Electrical Parameters
DC supply voltage limits (V):
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DD-I-1.00-01(M): 12–24
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DD-I-1.00-04(M), DD-I-09-0-5 mA, DD-I-09-4-20 mA(3): 12–36
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DD-I-1.00-05, 06, 07, 08; DD-I-09-RS485, CAN: 8–30
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DD-I-09-4-20 mA: 9–30
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DD-I-09-Umin-Umax: 14–36
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DD-I-1.00-07: 8–55
Materials in contact with medium: Stainless steel 12X18H10T, titanium alloy VT-9
Nominal supply voltage (V):
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DD-I-1.00-01(M), 05, 06, 08; DD-I-09-RS485, CAN: 15.0 ±0.75
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DD-I-1.00-07: 0.48 ±1.0
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DD-I-1.00-04(M), DD-I-09 (analog output): 24.0 ±0.48
Power consumption (VA, max):
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DD-I-1.00-01(M), DD-I-09-Umin-Umax: 0.24
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DD-I-1.00-04(M), DD-I-09-4-20 mA, 4-20 mA(3): 1.00
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DD-I-1.00-05, 06, 07, 08; DD-I-09-RS485, CAN, 0-5 mA: 0.50
Environmental Parameters
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Ingress protection class (per GOST 14254): IP54
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Measured medium temperature: –50 … +125 °C
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Time between verifications (MTBV):
5 years (DD-I-1.00-01, 01M, 04, 04M, DD-I-09-4-20 mA, 4-20 mA(3), 0-5 mA, Umin-Umax)
6 years (DD-I-1.00-05, 06, 07, 08, DD-I-09-CAN, RS485)
- Warranty period: 3 years