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NPEXA-K01

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 an independent power supply. The input, output, and power supply are galvanically isolated from each other.

Input signal

Output signal

Channels

Power Supply Mode

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NPEXA-K01

【Core technology】

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【Installation and disposal】



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Installation                                               Disposal 


Supply
Power supply 20 ~ 30 V DC
Input
Input signal K, E, S, B, J, T, R, N, etc. Pt100, Cu100, Cu50, etc.
Line resistance ≤ 20 Ω per line (RTD)
Output
Output signal 4 ~ 20 mA
Load resistance RL ≤ 500 Ω
Transfer characterisics
Conversion accuracy-E -100 ℃ ~ +1000 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
Conversion accuracy-K -200 ℃ ~ +1372 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
Conversion accuracy-J -100 ℃ ~ +1200 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
Conversion accuracy-N -200 ℃ ~ +1300 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
Conversion accuracy-S -50 ℃ ~ +1768 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
Conversion accuracy-R -50 ℃ ~ +1768 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
Conversion accuracy-T -20 ℃ ~ +400 ℃/＜300 ℃，±0.3 ℃/≥300 ℃，±0.1 %F.S.
Conversion accuracy-B +400 ℃ ~ +1820 ℃/＜500 ℃，±0.5 ℃/≥500 ℃，±0.1 %F.S.
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 30 ppm/℃
General parameters
Compensation accuracy 1°C (Temperature compensation range: -20°C ~ +60°C)
Response time ≤ 500 ms
Power dissipation ≤ 1.1 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
Safe state Output signal ＜3.6mA or ＞21.5mA
Mechanical specifications
Connection method Screw connection
Dimension 17.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, SIL, CE, FCC, CCC
Type of equipment Type B
Hardware fault margin(HFT) 0
Safety integrity level(SIL) SIL2
λS (1 FIT=10-9/h) 191.82 FIT
λDU (1 FIT=10-9/h) 13.15 FIT
λDD (1 FIT=10-9/h) 84.57 FIT
λTOTAL (1 FIT=10-9/h) 288.24 FIT
SFF 94.44%
PFDavg(T1=1Y) 5.76E-05
PFH 1.32E-08 1/h
Ex marking [Ex ia Ga]ⅡC
Um 250 V
Uo 7.3 V (Terminals 1, 2, 3)
Io 16 mA (Terminals 1, 2, 3)
Po 30 mW (Terminals 1, 2, 3)
Co 7 μF (Terminals 1, 2, 3)
Lo 97 mH (Terminals 1, 2, 3)
NPPB-DIN Bus rail power supply
35mm standard rail
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.
NPPB-BSC028 Dust cover
Protect the exposed bus and split the combination as needed.
NPPB-SS5 Limiter
For fixed position, standard 2 sets
NPPB-TS35B Fixed piece
Material: metal iron, used for rail load-bearing reinforcement, standard 2 pieces
NPEXA-C11

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