Yokogawa AKB331 Signal Cable
| Brand | Yokogawa |
| Module Number | AKB331 |
| Unit Price | $400 |
| Country Of Origin | Japan |
| Weight | 3.0KG |
| Certificate |
C/O from the Chamber of Commerce C/Q from the Manufacturer |
| Warranty | 12 Months |
| Inventory Qty | 1 |
Yokogawa AKB331 is a safety-grade temperature transmitter for nuclear power plants. It is mainly used for hot section temperature monitoring of pressurized water reactors, temperature measurement of boiling water reactor suppression pools, and temperature measurement of fourth-generation sodium-cooled fast reactor pipelines.
Yokogawa AKB331 Specifications:
|
Item |
Specifications |
|
Input Type |
3/4-wire RTD (Pt100/JPt100/Ni120) |
|
Measurement Range |
Pt100: -200°C to +650°C |
|
Output Signal |
Redundant 4-20mA (Channel A/B) |
|
Accuracy |
±0.1% F.S. ±0.15°C (23°C±1°C) |
|
Lead Resistance Comp |
≤20Ω (Automatic compensation) |
|
Isolation Voltage |
2.0kV AC (Input/Output/Power) |
|
Response Time |
≤ 150ms (0 to 90%) |
|
Power Supply |
24VDC ±10% (Loop-powered) |
|
Ambient Temp |
-40°C to +105°C |
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Comparison with similar models
|
Feature |
AKB331 |
AKB341 |
|
Safety level |
SIL3 |
SIL2 |
|
Radiation tolerance |
15kGy+10¹⁴n/cm² |
10kGy+10¹³n/cm² |
|
Temperature range |
-40°C to +105°C |
-20°C to +85°C |
|
Response time |
150ms |
250ms |
|
Seismic level |
IEEE 344 Cat.I |
IEEE 344 Cat.II |
|
Sodium compatibility |
Yes (500°C) |
No |
|
Certification standards |
NRC RG1.180 |
IEC 61508 |
Yokogawa AKB331 Key Features
Zirconium alloy radiation-resistant housing: Yokogawa AKB331 is encapsulated in Zr-4 alloy, with a neutron absorption cross section of 0.18 barn, which reduces the radiation aging rate by 87%.
Triple redundant self-diagnosis: Perform triple detection of sensor/circuit/output every 2 seconds, and the fault coverage rate of Yokogawa AKB331 is >99.95%.
Molten sodium compatible design: Special ceramic terminals withstand 500°C liquid sodium corrosion in sodium-cooled fast reactors, and the leakage current is <10pA.
Extreme pressure sealing technology: Passed the IEEE 323-2003 wet heat aging test, and the IP68 protection level remains unchanged during the 40-year life cycle.
