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NPEXA-H211

Temperature input isolated barrier, it converts the thermal resistance signals from a hazardous area into 4~20mA signals to a safe area by isolation. It needs a backplane power supply. The input, output, and power supply are galvanically isolated from each other. The self-test function is also available on this device. Calibrate the apparatus or modify parameters by using a handheld programmer.

Input signal

Output signal

Channels

Power Supply Mode

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NPEXA-H211

【Core technology】

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【Installation and disposal】



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Apparatus installation                            Apparatus disposal  




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Backplan installation                                Backplan disposal  




Supply
Power supply 18 ~ 32 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 ≤ 500 Ω
Transfer characterisics
Conversion accuracy-Pt100 -200 ℃ ~ +850 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
Conversion accuracy-Cu50 -50 ℃ ~ +150 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
Conversion accuracy-Cu100 -50 ℃ ~ +150 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
Temperature drift 0.01%F.S./℃
General parameters
Response time ≤ 1 s
Power dissipation 1.5 W
EMC data
Electromagnetic compatibility IEC 61326-3-1
Dielectric strength ≥ 2500V AC (intrinsically safe side / non-intrinsically safe side); ≥ 500V 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
Output states Whatever input fault status (except breakage), the output follows the input within measuring range. And the maximum value would not exceed the 110% of the upper limit of the measuring range (e.g. When the output signal type is 0 ~ 20mA, the minimum output value may be 0mA, the maximum output value would not exceed 22mA)
Mechanical specifications
Connection method Screw connection
Dimension 15.8mm (W) × 121.6mm (H) × 104.8mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, CE, FCC, CCC
Ex marking [Ex ia Ga]ⅡC
Um 250 V
Uo 7.3 V (Terminals 1, 2, 3)
Io 27 mA (Terminals 1, 2, 3)
Po 50 mW (Terminals 1, 2, 3)
Co 12 μF (Terminals 1, 2, 3)
Lo 28 mH (Terminals 1, 2, 3)
NPEXA-C11

一入一出

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