Analog input safety barrier

Analog input safety barrierFeatures:

Two wire transmitters, three wire transmitters, and current source input isolated safety barriers provide isolated power supply for transmitters in hazardous areas, while isolating and transmitting 4-20mA signals generated by transmitters or current sources from the hazardous side to the safe side for current or voltage output.

This product is powered by DC24V, and the power supply, input, and output are isolated from each other.

Adopting a 12.5mm ultra-thin shell and a D IN35mm standard rail independent installation method (optional bus power supply function).

Product selection:

One in, one out; Dangerous side input signal 0 (4) -20mA;

The safety side output signal is 0 (4) -20mA.

One in, one out; Dangerous side input signal 4-20mA;

The safety side output signal is 4-20mA, and the circuit is powered.

One in, two out; Dangerous side input signal 0 (4) -20mA;

The safety side output signal is 0 (4) -20mA.

One in, two out; Dangerous side input signal 4-20mA;

The safety side output signal is 4-20mA, and the circuit is powered.

Main technical parameters:

Dangerous side input

Input signal: 0 (4) -20mA；

Distribution: Distribution voltage ≤ 28V DC;

Voltage at 20mA: ≥ 15V；

Normal operating current ≤ 25mA.

Safety side output

Active current output: 0 (4) -20mA;

Load resistance: RL ≤ 300 Ω；

Passive current output: 4-20mA;

Load resistance: RL ≤ [(Ue-5)/0.02] Ω；

External power supply Ue: 12-30V DC；

Voltage output: 0 (1) -5V; Load resistance: RL ≥ 330K Ω；

0 (2)-10V ; Load resistance: RL ≥ 660K Ω；

Note: Users need to provide specifications when placing an order.

Analog input safety barrierBasic parameters:

Number of channels: one in one out, one in two out；

Power supply: DC24V, voltage range: DC18~36V；

Consumption current: ≤ 70mA (one in two out, 24V power supply, distribution input, 20mA output) Basic accuracy: ± 0.1% F.S (20 ℃)；

Temperature drift: 0.005% F.S./℃；

Response time: ≤ 2mS (0-90%) (TYP)；

Insulation strength: ≥ 2500V AC/1min (between the local and non local ends)；

≥ 500V AC/1m in (between power supply and non local terminal)；

Insulation resistance: ≥ 100M Ω (between local and non local terminals, power supply) Electromagnetic compatibility: in accordance with GB/T 18268.1 (IEC61326-1)

Working temperature range: -20~+60 ℃ (no condensation, no freezing)；

Applicable location: Installed in a safe place, it can be connected to intrinsically safe instruments located in Zone 0, Zone 1, Zone 2, IIC, IIB, IIA, T4~T6 hazardous areas；

Applicable on-site equipment: two-wire and three wire transmitters, current source signals.

Explosion proof certification:

Certification of Explosion proof Safety Supervision and Inspection Station for Instruments and Meters

Explosion proof certificate number: C N E x 2 1.2 9 3 3

Certification standards: GB 3 8 3 6.1, GB 3 8 3 6.4

Explosion proof mark: [E x i a G a] Ⅱ C

Maximum voltage: U m=250 V

Authentication parameters (between terminals 7, 8, 9, and 10):

U o = 2 8 V ， I o = 9 3 m A ， P o = 6 5 1 m W

Ⅱ C ： C o = 0 . 0 8 3 μ F ， L o = 4 . 0 m H

(Between terminals 9 and 10):

U o = 3 . 5 V , C o = 1 0 0 μF

U i = 2 0 V , I i = 1 1 0 m A