✅ Core Parameters (4507)

Channels: 8 channels of AO (isolated, each channel independent)

Signal type: 4-20mA (default) / 0-10V (software selectable)

Redundancy architecture: TMR triple redundancy, 2oo3 voting, no single point failure

Safety level: IEC 61508 SIL3, TUV, ATEX Zone 2

Resolution / Accuracy: 16 bits, ±0.05% FS; Temperature drift ≤ 25ppm/°C

Response time: ≤ 1ms (update / stabilization)

Load capacity: 4-20mA: ≤ 750Ω; 0-10V: ≥ 2kΩ

Power supply: 24VDC ±10%, power consumption < 15W

Isolation: Channel-to-channel ≥ 500VAC; I/O - backplane ≥ 1500VAC

Temperature: -40°C ~ +70°C (industrial wide temperature range)

Size / Weight: 160×220×130mm, approximately 1.2kg, 19" rack

✅ Functions and Applications

Safety regulated output: ESD emergency shut-off valve, pressure / level safety control, valve positioning, boiler / generator safety regulation

TMR fault tolerance: Any channel / circuit failure, no disturbance continues operation; faulty module hot-swappable replacement

Diagnosis: ≥ 99.9% diagnosis coverage, short circuit / open circuit / overrange / power abnormal millisecond-level alarm and record SOE

✅ Comparison with the same series (quick differentiation)

4507: 8 channels of AO (analog output), for safety regulation

4505/4506: AI (analog input), temperature / pressure / level monitoring

4501/4502: DI (digital input), switch / valve position feedback

4503/4504: DO (digital output), solenoid valve / contactor

4500/4508: Mixed I/O, compact system

✅ Typical Applications

Petroleum and natural gas: ESD emergency shut-off valve, wellhead pressure regulation

Chemical industry: Reaction vessel overpressure / overtemperature regulation, safety cut-off control

Electricity: Boiler feedwater / steam pressure safety regulation, generator fuel control