Overview
The switching output isolated safety barrier drives the on-site intrinsically safe equipment in the hazardous area through the contact switch and logic level signal control in the safe area. Thereby controlling solenoid valves, sound and light alarms, etc. The signal status indicator light is set in red and yellow colors, the alarm displays red, and the output solenoid valve and other working tasks display yellow.
This product needs to be powered independently, and the power supply, input and output terminals are isolated between each other.
Specifications
| Input in safe area | |
| Input signal | Switch contact, logic level |
| Dangerous side output: | |
| Open circuit voltage | 22V~24V DC, UE/IE=12V/35mA |
| Inversion function | K1 is set to the ON side, and the circuit output is inverted. |
| Basic parameters | |
| Supply voltage | 20~35VDC |
| Power consumption | ≤70mA(24V power supply, when 12V/35mA power distribution) |
| LED indicator | Green: Power indicator Yellow: Output relay in normal working state |
| Alarm relay function | When dial switch K2 is at "ON" side, circuit selection alarm function Load resistance <50Ω, short circuit alarm (SC) Load resistance>10kΩ, open circuit alarm (LB) |
| Characteristic response time of alarm relay | Response time: 20ms Driving capacity: 250VAC/2A, 30VDC/2A resistive load Load type: Resistive load |
| Output accuracy | 0.1%F.S (typical value: 0.05%F.S) |
| Response time | 20ms to reach 90% of final value |
| Temperature parameters | Working temperature: -20℃ ~ +60℃, Storage temperature: -40℃ ~ +80℃ |
| Relative humidity | 10%~95% RH no condensation |
| Insulation strength | Between intrinsically safe side and non-intrinsically safe side (≥3000VAC/min); between power supply and non-intrinsically safe side (≥1500VAC/min) |
| Insulation resistance | ≥100MΩ (between input/output/power supply) |
| Electromagnetic compatibility | According to IEC 61326-1 (GB/T 18268), IEC 61326-3-1 |
| MTBF | 100000h |
| Wire requirements | Horizontal cutting surface ≥ 0.5mm2; Insulation strength ≥ 500V |
| Applicable field equipments | Audible and visual alarm, intrinsically safe solenoid valve |
| Installation place | Installed in a safe zone, it can be connected to intrinsic safety instruments in hazardous areas up to Zone 0, IIC, Zone 20, and IIIC |
| Intrinsically safe certification | |
| Explosion proof mark | [Ex ia Ga]lIC [Ex ia Da]lllC |
| Explosion-proof standard | GB/T3836.1-2021 GB/T3836.4-2021 |
| Terminals 3-4 | Um:250V AC/DC Uo=25.2V DC lo=85mA Po=0.535W Co=0.107μF Lo=6mH |
| Certification body | CQST(China National Quality Supervision and Test Centre for Explosion Protected Electrical Products) |
Dimension
Schematic Drawings
Note:
1. The power supply of the power rail is an optional function. Users need to specify the power supply mode when ordering. Please refer to attachment on page 89.