Junfang Chemical & Physical
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| Brand | Junfang Chemical & Physical |
|---|---|
| Origin | Beijing, China |
| Model | JF-2200 |
| Measurement Gases | CH₄, C₃H₈, CO, H₂ |
| Accuracy | ±2% FS |
| Warm-up Time | 30 min |
| Output | RS232 digital interface, 4–20 mA analog output |
| Power Supply | AC 220 V or DC 12 V |
| Multi-channel Capability | Up to 20 gas alarm units |
| Data Storage | Internal high-capacity non-volatile memory |
| Communication | RS-232C serial interface |
| Customization | Adjustable measurement range per user specification |
| Compliance | Designed for alignment with GB 50493, JJG 693, and ISO 16000-24 calibration verification protocols |