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NPEXA-HM311

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. It needs a backplane power supply. The input, output, and power supply are galvanically isolated from each other.
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Input signal

Output signal

Channels

Power Supply Mode

HART

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NPEXA-HM311

¡¾Core technology¡¿

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¡¾Installation and disposal¡¿



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Apparatus installation                            Apparatus disposal  




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Backplan installation                                Backplan disposal  




¡¾Technical data¡¿ Supply Input Output Transfer characterisics General parameters EMC data Operating conditions Fault output ¡¾Mechanical specifications¡¿ Mechanical specifications ¡¾Certified data¡¿ Certified data
Supply
Power supply 18 ~ 32 V DC
Input
Input signal 4 ~ 20mA, HART
Input resistance approx. 75¦¸
Available voltage open-circuit voltage ¡Ü 26V; voltage: ¡Ý 15.5V at 20mA
Output
Output signal 4 ~ 20mA, HART
Load resistance RL ¡Ü 450 ¦¸
Transfer characterisics
Accuracy ¡À 0.1 %F.S.
Temperature drift 0.005%F.S./¡æ
General parameters
Response time ¡Ü 2 ms
Power dissipation 1.8 W
EMC data
Electromagnetic compatibility IEC 61326-3-1
Dielectric strength ¡Ý 2500V AC (intrinsically safe side / non-intrinsically safe side); ¡Ý 500V AC (Power supply /non-intrinsically safe side)
Insulation resistance ¡Ý 100 M¦¸ (Input /Output/Power supply)
Operating conditions
Operation temperature -20 ¡æ ~ +60 ¡æ
Storage temperature -40 ¡æ ~ +80 ¡æ
Suitable location Mounting in safe area, and connected to the intrinsic safety apparatus in hazardous area zone 0, zone 1, zone 2, ¢òA, ¢òB, ¢òC, T4 ~ T6
Fault output
Lo 4 mH (Terminals 2, 3)
Mechanical specifications
Connection method Screw connection
Dimension 15.8mm (W) ¡Á 121.6mm (H) ¡Á 104.8mm (D)
Mounting type DIN35 mm
Certified data
Product approvals NEPSI, CE, FCC, CCC
Ex marking [Ex ia Ga]¢òC
Um 250 V
Uo 5 V (Terminals 1, 3); 28V (Terminals 2, 3)
Io 93 mA (Terminals 2, 3)
Po 651 mW (Terminals 2, 3)
Co 70 ¦ÌF (Terminals 1, 3); 0.08 ¦ÌF (Terminals 2, 3)
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NPEXA-C11

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