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Yokogawa DX1002-1-4-2
Product Introduction:
The DX1002-1-4-2 is a 2-channel paper recorder from Yokogawa’s DX1000 Series, utilizing thermal printing technology to record process data on 100mm-wide chart paper in real time. This specific configuration features 1 standard input signal type, 4 alarm points, and 2 independent recording pens. It is widely deployed in chemical, power, metallurgy, and other industries for process monitoring and data archival.
Detailed content
Technical Specifications:
| Parameter | Specification |
|---|---|
| Recording Channels | 2 channels |
| Recording Pens | 2 pens (independent) |
| Input Points | 4 points (multi-point sequential scanning) |
| Alarm Points | 4 alarm outputs |
| Chart Paper Width | 100mm |
| Chart Paper Speed | 25mm/h, 50mm/h, 100mm/h (selectable) |
| Input Signal Type (-1 config) | 4-20mA DC (standard) |
| Alternative Inputs | 0-10V DC, 1-5V DC, Thermocouple (J, K, T, E, R, S, B), RTD (Pt100, JPt100, Cu50) |
| Input Impedance | 250Ω (for 4-20mA input) |
| Accuracy | ±0.5% FS (4-20mA input) |
| Recording Accuracy | ±1% FS |
| Alarm Function | 4 independent alarms, upper/lower limit alarm, adjustable hysteresis |
| Alarm Output | Relay contact: 250V AC / 3A, 30V DC / 3A |
| Communication Interface | RS-232C (RS-485 optional) |
| Power Supply | 100-240V AC (50/60Hz) |
| Power Consumption | Approximately 15W |
| Operating Temperature | 0°C to +50°C |
| Operating Humidity | 30% to 85% RH (non-condensing) |
Material Composition:
- Front Panel: ABS engineering plastic + transparent PC viewing window
- Internal Components: Thermal print head, stepping motor paper feed mechanism, linear sensor
Structural Features:
- Front-loading chart paper design
- Built-in thermal print head with automatic paper cutter
- Adjustable recording pen spacing
- Wall/panel mounting capability
Working Principle:
The DX1002-1-4-2 uses thermal printing technology. The print head controls heating elements based on the magnitude of the input signal, causing the thermosensitive chart paper to change color at corresponding positions, forming continuous process trend curves. Two recording pens can simultaneously record different channels or different ranges, enabling comparative monitoring.
Functional Features:
- Supports multi-point sequential display, monitors up to 4 measurement points simultaneously
- Built-in flashing alarm function for prominent abnormality indication
- Chart paper supports folding for archival storage
- Front panel allows setting of range, alarm values, recording speed, and other parameters
Advantages & Highlights:
- No external power required for data retention (pure analog recording)
- Chart paper is permanent-preservation type, suitable for long-term data archiving
- Intuitive operation interface, no specialized training required
- High reliability, suitable for unmanned operation scenarios
Applicable Industries:
- Chemical production process monitoring
- Power system parameter recording
- Metallurgy industry temperature/pressure recording
- Water treatment plant operation data recording
- Pharmaceutical industry GMP data recording
Installation Requirements:
- Panel cutout dimensions: 96mm × 96mm (DIN 96×96 standard)
- Installation depth: ensure minimum 80mm clearance behind the unit for wiring
- Power wiring: use 1.5mm² or larger conductors
- Grounding terminal must be reliably connected to earth ground
Usage Precautions:
- Replace chart paper regularly to prevent print head dry-firing
- Avoid direct sunlight exposure to prevent chart paper fading
- Clean print head using dedicated cleaning pen only; alcohol is prohibited
- Set alarm values according to actual process requirements
