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NPEXA-H01

Temperature input isolated barrier, it converts the thermocouple/thermal resistance signals from a hazardous area into 4~20mA signals to a safe area by isolation. It has external cold junction compensation terminals. 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-H01

【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 TC, RTD
Line resistance ≤ 20 Ω per line (RTD)
Output
Output signal 4 ~ 20 mA
Load resistance RL ≤ 500 Ω
Transfer characterisics
K -200 ℃ ~ +1372 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
E -120 ℃ ~ +1000 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
J -140 ℃ ~ +1200 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
T -270 ℃ ~ +400 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
N -200 ℃ ~ +1300 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
S -50 ℃ ~ +1768 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
R -50 ℃ ~ +1768 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
B +400 ℃ ~ +1820 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
W5Re-W26Re 0 ℃ ~ +2315 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
W3Re-W25Re -50 ℃ ~ +150 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
L -100 ℃ ~ +800 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
Pt100(385), Pt100(391) -200 ℃ ~ +850 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
Cu50, Cu100 (428) -180 ℃ ~ +200 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
Cu50, Cu100 (426) -50 ℃ ~ +200 ℃/＜100 ℃，±0.1 ℃/≥100 ℃，±0.1 %F.S.
Temperature drift 0.01%F.S./℃
General parameters
Compensation accuracy 1°C (Temperature compensation range: -20°C ~ +60°C)
Response time ≤ 1 s
Power dissipation 1.0 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 Default following mode, it can be configured as 4mA~20mA NE43 mode or fixed output mode.
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

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