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NPEXB-CM31L

Analog output isolated barrier, it transfers 4~20mA signals from a safe area to a hazardous area. It has loop powered. The input and output is galvanically isolated from each other.
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Input signal

Output signal

Channels

Power Supply Mode

HART

LFD

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NPEXB-CM31L

【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 【Mechanical specifications】 Mechanical specifications 【Certified data】 Certified data
Supply
Loop Powered 18 ~ 30 V DC
Input
Input signal 4 ~ 20mA, HART
Output
Output signal 4 ~ 20mA, HART
Load resistance RL ≤ [(U-8)/0.02]Ω; U is loop powered voltage
Transfer characterisics
Accuracy 0.2 %F.S.
Temperature drift 0.01 %F.S./℃
General parameters
Response time ≤ 2 ms
EMC data
Electromagnetic compatibility IEC 61326-3-1
Dielectric strength ≥ 2500V AC (intrinsically safe side /non-intrinsically safe side)
Insulation resistance ≥ 100 MΩ (Input /Output)
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 1, zone 2, ⅡA, ⅡB, ⅡC，ⅢC, T4 ~ T6
Mechanical specifications
Connection method Screw connection
Dimension 17.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, CE, FCC, CCS
Ex marking [Ex ib Gb]ⅡC, [Ex ib Db] ⅢC
Um 250 V
Uo 23.1 V (Terminals 2, 3)
Io 27 mA (Terminals 2, 3)
Po 623.7 mW (Terminals 2, 3)
Co (?C) 0.06 μF (Terminals 2, 3)
Lo (?C) 1.9 mH (Terminals 2, 3)
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