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CN

NPEXA-C21L

Temperature input isolated barrier, it converts the resistance signals from a hazardous area into 4~20mA signals to a safe area by isolation. It has loop powered. The input and output is 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-C21L

【Core technology】

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【Installation and disposal】



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Installation                                               Disposal  






Supply
Loop Powered 12 ~ 30 V DC
Input
Input signal Pt100, Cu100, Cu50, BA1, BA2, etc.
Line resistance ≤ 20 Ω per line
Output
Output signal 4 ~ 20 mA
Load resistance RL < [(U-12)/0.02]Ω; U is loop powered voltage
General parameters
Response time ≤ 500 ms
EMC data
Electromagnetic compatibility IEC 61326-3-1
Dielectric strength ≥ 3000V 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 0, zone 1, zone 2, ⅡA, ⅡB, ⅡC, ⅢC, T4 ~ T6
State
Output states Whatever input fault status (except breakage, the output is 3.5mA), the output follows the input within measuring range. And the maximum value would not exceed 22mA ,the maximum output value would not less than 3.5mA
Mechanical specifications
Connection method Screw connection
Dimension 12.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, CE, FCC, CCC
Ex marking [Ex ia Ga]ⅡC, [Ex ia Da] ⅢC
Um 250 V
Uo 6.2 V (Terminals 1, 2, 3)
Io 22 mA (Terminals 1, 2, 3)
Po 35 mW (Terminals 1, 2, 3)
Co (ⅡC) 30 μF (Terminals 1, 2, 3)
Lo (ⅡC) 40 mH (Terminals 1, 2, 3)
NPEXA-C11

一入一出

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