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NPEXA-C21A2

Temperature input isolated barrier, it converts the resistance signals from a hazardous area into 4~20mA signals to a safe area by isolation, two relay alarm outputs. It needs an independent 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.
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Input signal

Output signal

Channels

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NPEXA-C21A2

【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 State 【Mechanical specifications】 Mechanical specifications 【Certified data】 Certified data
Supply
Power supply 18 ~ 60 V DC
Input
Input signal Pt100, Cu100, Cu50, BA1, BA2, etc.
Load resistance ≤ 20 Ω per line
Output
Output signal Output1: 4 ~ 20mA; Output2, Output3: relay contact (alarm value, hysteresis and delay time can be set)
Load resistance RL ≤ 550 Ω
Load capacity 250VAC/2A, 30VDC/2A
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 30 ppm/℃
General parameters
Response time ≤ 1 s
Power dissipation 1.5 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，ⅢC, 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.
Mechanical specifications
Connection method Screw connection
Dimension 17.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals CNEX, CE, FCC, CCC
Ex marking [Ex ia Ga]ⅡC, [Ex ia Da] ⅢC
Um 250 V
Uo 10.5 V (Terminals 1, 2, 3, 4)
Io 38 mA (Terminals 1, 2, 3, 4)
Po 100 mW (Terminals 1, 2, 3, 4)
Co (ⅡC) 0.65 μF (Terminals 1, 2, 3, 4)
Lo (ⅡC) 14 mH (Terminals 1, 2, 3, 4)
J9集团国际站【中国区】官方网站
NPPB-DIN Bus rail power supply
35mm standard rail
J9集团国际站【中国区】官方网站
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.
J9集团国际站【中国区】官方网站
NPPB-BSC028 Dust cover
Protect the exposed bus and split the combination as needed.
J9集团国际站【中国区】官方网站
NPPB-SS5 Limiter
For fixed position, standard 2 sets
J9集团国际站【中国区】官方网站
NPPB-TS35B Fixed piece
Material: metal iron, used for rail load-bearing reinforcement, standard 2 pieces
J9集团国际站【中国区】官方网站
NPEXA-C11

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