Hybrid Cryogenic Freezer with Liquid Nitrogen Backup带液氮备份的混合式低温冷冻箱
- Temperature range
- −100°C to −150°C
- Capacity
- 300–600 L
低温转移设备

Photo for reference; configuration may vary by order.
Model No. CTE-0004 · Cryogenic Equipment
带电磁阀的液氮自动补液控制器
Unattended storage vessels stay topped up when this controller does the filling. It watches up to 4 vessels by capacitance or differential-pressure level sensing (±1–2% of range) and opens a DN8–DN15 solenoid valve fed at 0.5–3 bar. Fill timeout adjusts from 1 to 120 min; outputs include relay, 4–20 mA and Ethernet.
| Place of origin | China (dispatched from Shanghai) |
|---|---|
| Brand | Liquid International / OEM on request |
| Export packing | Fumigation-free plywood case or reinforced carton |
| Loading port | Shanghai / Ningbo (others on request) |
| Payment terms | T/T, L/C at sight (confirmed on quotation) |
| Trade terms | EXW, FOB, CFR, CIF, DAP |
Typical export terms — final terms are confirmed on the proforma invoice.
Unattended storage vessels stay topped up when this controller does the filling. It watches up to 4 vessels by capacitance or differential-pressure level sensing (±1–2% of range) and opens a DN8–DN15 solenoid valve fed at 0.5–3 bar. Fill timeout adjusts from 1 to 120 min; outputs include relay, 4–20 mA and Ethernet.
| Parameter | Value |
|---|---|
| Controlled vessels 控制容器数 | 1–4 |
| Level sensor type 液位传感器类型 | Capacitance or differential pressure |
| Level accuracy 液位精度 | ±1–2% of range |
| Valve size 阀门口径 | DN8–DN15 |
| Valve supply pressure 阀门供液压力 | 0.5–3 bar |
| Fill timeout 补液超时 | Adjustable 1–120 min |
| Outputs 输出 | Relay, 4–20 mA, Ethernet |
| Temperature inputs 温度输入 | PT100 or thermocouple, 2–8 channels |
| Data logging 数据记录 | Internal memory, USB export |
| Power supply 电源 | 24 V DC or 100–240 V AC |
| Model No. | CTE-0004 |
| Place of origin | China (dispatched from Shanghai) |
Chinese national standards (GB/T, JJG) and international standards referenced for this product type. Test reports and certificates are supplied with the quotation on request.
Fumigation-free plywood case or reinforced carton
Every unit is power-tested before packing; enclosed in shock foam and moisture barrier; wooden cases comply with ISPM 15.
Shanghai / Ningbo (others on request)
Full container load (FCL), less-than-container load (LCL) or air freight; complete export documentation provided.
Complete the form below — an export engineer will send technical configurations and a formal proforma invoice within 24 hours.
Single instruments, complete laboratories or government tenders — our export engineers prepare the configuration, proforma invoice and shipping documents.