NP400
RELATIVE PRESSURE TRANSMITTER – INSTRUCTION MANUAL – V1.0x F
INTRODUCTION
NP400 positive relative pressure transmitters are robust and reliable
equipment suitable for general industrial applications. They are
available in several measurement ranges and process connection
modes.
PRECAUTION
Before operating the transmitter, carefully read its specifications and
operating instructions. In case of damage caused by incorrect
operation or inappropriate usage, warranty becomes null and void.
The installation must be carried out by a specialized professional.
The electronic instruments power supply must come from a proper
instrumentation network.
UNPACKING
When unpacking, in addition to the transmitter itself, you should find:
• A quick guide to installation and operation.
• A sealed electrical connector.
• A screw to fix the connector to the transmitter.
IDENTIFICATION
An identification label is attached to the equipment housing. On this
label, you can found detailed information about the transmitter.
Fig. 1 shows the identification label:
Fig. 1 – Transmitter identification
NOVUS AUTOMATION
SPECIFICATIONS
Reference Conditions:
Environment at 23 °C ± 3 °C, 24 V supply, 250 Ω load. Vertical
position (pressure connection is down).
Measurement Type:
Positive relative pressure.
Pressure Range:
Pressure
Transmitter Nominal
Overpressure
Pressure
0.2 MPa
0.24 MPa
(2 bar / 29.01 psi)
(2.4 bar / 34.81 psi)
0.5 MPa
0.6 MPa
(5 bar / 72.52 psi)
(6 bar / 87.02 psi)
1 MPa
1.2 MPa
(10 bar / 145.04 psi)
(12 bar / 174.04 psi)
1.6 MPa
2.4 MPa
(16 bar/ 232.06 psi)
(24 bar / 348.09 psi)
2 MPa
2.4 MPa
(20 bar / 290.08 psi)
(24 bar / 348.09 psi)
2.5 MPa
3.6 MPa
(25 bar / 362.59 psi)
(36 bar / 522.13 psi)
4 MPa
4.8 MPa
(40 bar / 580.15 psi)
(48 bar / 696.18 psi)
5 MPa
6 MPa
(50 bar / 725.19 psi)
(60 bar / 870.23 psi)
6 MPa
12 MPa
(60 bar / 870.23 psi)
(120 bar / 1740,45 psi)
10 MPa
12 MPa
(100 bar / 1450,38 psi)
(120 bar / 1740,45 psi)
16 MPa
24 MPa
(160 bar / 2320,60 psi)
(240 bar / 3480,91 psi)
25 MPa
36 MPa
(250 bar / 3625,94 psi)
(360 bar / 5221,36 psi)
40 MPa
48 MPa
(400 bar / 5801,51 psi)
(480 bar / 6961,81 psi)
Table 1 – Measurement ranges
Measurement Accuracy:
NP400 (< 50 bar) < ± 0.5 % FS Maximum Range (0.3 %
nonlinearity + 0.1 % hysteresis + 0.1 repeatability)
NP400 (>= 50 bar) < ± 1.0 % FS Maximum Range (0.8 %
nonlinearity + 0.1 % hysteresis + 0.1 repeatability)
Maximum Thermal Deviation:
< ± 0.06 % of Maximum Range / °C.
Including zero and span deviations.
Burst Pressure
0.5 MPa
(5 bar / 72.52 psi)
1.25 MPa
(12.5 bar / 181.29 psi)
2.5 MPa
(25 bar / 362.59 psi)
5 MPa
(50 bar / 725.19 psi)
6 MPa
(60 bar / 870.23 psi)
9 MPa
(90 bar / 1305,33 psi)
10 MPa
(100 bar / 1450,38 psi)
12,5 MPa
(125 bar / 1812,97 psi)
20 MPa
(200 bar / 2900,75 psi)
20 MPa
(200 bar / 2900,75 psi)
35 MPa
(350 bar / 5076,32 psi)
45 MPa
(450 bar / 6526,69 psi)
55 MPa
(550 bar / 7977,07 psi)
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