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NPEXB-CM31

Analog output isolated barrier, it transfers 4~20mA signals from a safe area to a hazardous area. It allows transmission of HART communication signals. The input, output, and power supply are galvanically isolated from each other. The LFD function of output short-circuit/ line-break can be closed by the DIP switch on the front side.
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Input signal

Output signal

Channels

Power Supply Mode

HART

LFD

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NPEXB-CM31

【Core technology】

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【Installation and disposal】



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Installation                                               Disposal  





【Technical data】 Supply Input Output Transfer characterisics General parameters EMC data Operating conditions State 【Mechanical specifications】 Mechanical specifications 【Certified data】 Certified data
Supply
Power supply 18 ~ 60 V DC
Input
Input signal 4 ~ 20mA, HART
Input voltage drop ≤ 1.2 V
Output
Output signal 4 ~ 20mA, HART
Load resistance 80 ~ 800 Ω
Transfer characterisics
Accuracy 0.1 %F.S.
Temperature drift 30 ppm/℃
General parameters
DIP switch settings S1→ON：：：LFD on；；S1→OFF：：： LFD off
Response time ≤ 2 ms
Power dissipation 1 W
EMC data
Electromagnetic compatibility IEC 61326-3-1
Dielectric strength ≥ 3000V AC (intrinsically safe side / non-intrinsically safe side); ≥ 1500V AC (Power supply /non-intrinsically safe side)
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
Line Failure state When the output load resistance was detected less than 30Ω, the output is in the fault of short circuit. When the output load resistance was detected more than 8000Ω, the output is in the fault of line breakage. If the output is in the fault, the input current value is limited to within 1mA and the output current value is limited to 3mA.
Mechanical specifications
Connection method Screw connection
Dimension 12.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Ex marking [Ex ia Ga]ⅡC
Certified data
Product approvals NEPSI, CE, FCC, CCS, CCC
Um 250 V
Uo 27.3 V (Terminals 1, 2)
Io 92 mA (Terminals 1, 2)
Po 628 mW (Terminals 1, 2)
Co 0.058 μF (Terminals 1, 2)
Lo 2.8 mH (Terminals 1, 2)
3118云顶集团(中国区)官方网站
NPPB-DIN Bus rail power supply
35mm standard rail
3118云顶集团(中国区)官方网站
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.
3118云顶集团(中国区)官方网站
NPPB-BSC028 Dust cover
Protect the exposed bus and split the combination as needed.
3118云顶集团(中国区)官方网站
NPPB-SS5 Limiter
For fixed position, standard 2 sets
3118云顶集团(中国区)官方网站
NPPB-TS35B Fixed piece
Material: metal iron, used for rail load-bearing reinforcement, standard 2 pieces
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NPEXA-C11

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