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NPEXA-CM311

Analog input isolated barrier, it provides transmitters with power in the hazardous area and transfers 4~20mA signals from a hazardous area to a safe area. It allows transmission of HART communication signals. The input, output, and power supply are galvanically isolated from each other.
胜天国际官网 - 相信品牌的力量 胜天国际官网 - 相信品牌的力量 胜天国际官网 - 相信品牌的力量 胜天国际官网 - 相信品牌的力量

Input signal

Output signal

Channels

Power Supply Mode

HART

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NPEXA-CM311

【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 4 ~ 20mA, HART
Line resistance approx. 75Ω
Available voltage open-circuit voltage ≤ 26V; voltage: ≥ 16V at 20mA
Output
Output signal 4 ~ 20mA, HART
Load resistance RL ≤ 550 Ω
Transfer characterisics
Accuracy 0.1 %F.S.
Temperature drift 30 ppm/℃
General parameters
Response time ≤ 2 ms
Power dissipation 1.8 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 The output signal is less than 3.6mA or greater than 21.5mA
Mechanical specifications
Connection method Screw connection
Dimension 12.8mm (W) × 110mm (H) × 117mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, SIL, CE, FCC, CCS, CCC
Type of equipment Type A
Hardware fault margin(HFT) 0
Mode of demand low/high
Safety integrity level(SIL) SIL3
λS (1 FIT=10-9/h) 236.3 FIT
λDU (1 FIT=10-9/h) 11.2 FIT
λDD (1 FIT=10-9/h) 145.68 FIT
λTOTAL (1 FIT=10-9/h) 393.18 FIT
SFF 97.2%
PFDavg(T1=1Y) 4.91E-05
PFH 11.2E-09 1/h
Ex marking [Ex ia Ga]ⅡC
Um 250 V
Uo 5 V (Terminals 1, 2); 28V (Terminals 2, 3)
Io 93 mA (Terminals 2, 3)
Po 651 mW (Terminals 2, 3)
Co 70 μF (Terminals 1, 2); 0.058 μF (Terminals 2, 3)
Lo 2.8 mH (Terminals 2, 3)
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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.
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For fixed position, standard 2 sets
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