CN

NPEXA-C271

Temperature input isolated barrier, it converts the thermal resistance signals from a hazardous area into 1:1 resistance and 4~20mA signals to a safe area by isolation. It needs an independent power supply. The input, output, and power supply are galvanically isolated from each other. Calibrate the apparatus or modify parameters by using a handheld programmer.

Input signal

Output signal

Channels

Power Supply Mode

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NPEXA-C271

【Core technology】

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【Installation and disposal】



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Installation                                               Disposal  






Supply
Power supply 18 ~ 60 V DC
Input
Input signal Pt100, Cu100, Cu50, BA1, BA2, etc.
Line resistance ≤ 20 Ω per line
Output
Output signal Output1: 1:1 resistance；Output2: 4 ~ 20mA
Exciting current 0.1 ~ 10 mA
Load resistance Output2: RL ≤ 550 Ω
Transfer characterisics
Conversion accuracy Output1: 0.5mA ~ 10mA excitation current，± 0.1%F.S. or < 0.2Ω（select max）；Output2: ＜300 ℃，±0.1 ℃；≥100 ℃，±0.1 %F.S.
Temperature drift 30 ppm/℃
General parameters
Response time ≤ 500 ms
Power dissipation 1 W
Dielectric strength ≥ 3000V AC (intrinsically safe side / non-intrinsically safe side); ≥ 1500V AC (Power supply /non-intrinsically safe side)
EMC data
Electromagnetic compatibility IEC 61326-3-1
Insulation resistance ≥ 100 MΩ (Input /Output/Power supply)
Operating conditions
Operation temperature -20 ℃ ~ +60 ℃
Storage temperature -40 ℃ ~ +80 ℃
Suitable location Mounting in safe area, and connected to the intrinsic safety apparatus in hazardous area zone 0, zone 1, zone 2, ⅡA, ⅡB, ⅡC, T4 ~ T6
State
Output states Whatever input fault status (except breakage, breakage output1 about 16Ω,breakage output2 is 0V/mA), the output follows the input within measuring range. And output1 the maximum value would not exceed the upper limit 430Ω, output2 the maximum value would not exceed the 110% of the upper limit of the measuring range.
Mechanical specifications
Connection method Screw connection
Dimension 17.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals CNEX, CE, FCC, CCC
Ex marking [Ex ia Ga]ⅡC
Um 250 V
Uo 8.7 V (Terminals 1, 2, 3)
Io 33 mA (Terminals 1, 2, 3)
Po 72 mW (Terminals 1, 2, 3)
Co 3.9 μF (Terminals 1, 2, 3)
Lo 22 mH (Terminals 1, 2, 3)
NPPB-DIN Bus rail power supply
35mm standard rail
NPPB-BS210 I/O terminal base
Connect the rail BUS base, external power is introduced through the terminal block of the base. If a redundant power module is selected, this terminal can be left unselected.
NPPB-BSC028 Dust cover
Protect the exposed bus and split the combination as needed.
NPPB-SS5 Limiter
For fixed position, standard 2 sets
NPPB-TS35B Fixed piece
Material: metal iron, used for rail load-bearing reinforcement, standard 2 pieces
NPEXA-C11

一入一出

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