Type 8318 Pressure Transmitter with IO-Link Interface
The Type 8318 pressure transmitter measures and monitors relative pressure in liquids and gases, offering high precision and digital communication capabilities.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Non-wetted parts: Stainless steel 1.4301 (304), Wetted parts: Stainless steel 1.4404 (316L) |
| Measuring Element | Membrane in stainless steel 1.4435 (316L), Welding ring in stainless steel 1.4404 (316L) |
| Weight | Approx. 160g |
| Measurement technology | Metallic thin film strain gauge |
| Measuring Range | -0.4...+0.4bar, -1...+1bar, -1...+2.5bar, -1...+5bar, -1...+12bar |
| Monitoring | IO-Link event configurable, process data invalid, measuring range overflow, measuring range underflow, device hardware fault |
| Compensated ambient temperature range | -20...+80°C (-4...+176°F) |
| Temperature coefficient of zero | -0.4...+0.4bar: 0.020%/°C, -1...+1bar: 0.015%/°C, -1...+2.5bar: 0.015%/°C, -1...+5bar: 0.010%/°C, -1...+12bar: 0.010%/°C |
| Temperature coefficient of measuring span | -0.4...+0.4bar: 0.010%/°C, -1...+1bar: 0.010%/°C, -1...+2.5bar: 0.010%/°C, -1...+5bar: 0.010%/°C, -1...+12bar: 0.010%/°C |
| Thermal hysteresis | -0.4...+0.4bar: 0.15% of measuring span, -1...+1bar: 0.10% of measuring span, -1...+2.5bar: 0.10% of measuring span, -1...+5bar: 0.10% of measuring span, -1...+12bar: 0.10% of measuring span |
| Zero Offset | -0.4...+0.4bar: 0.30% of measuring span, -1...+1bar: 0.15% of measuring span, -1...+2.5bar: 0.10% of measuring span, -1...+5bar: 0.10% of measuring span, -1...+12bar: 0.10% of measuring span |
| Measuring resolution | 14bit |
| Measurement Deviation | At 20°C: -0.4...+0.4bar: 0.7% of measuring span, -1...+1bar: 0.6% of measuring span, -1...+2.5bar: 0.5% of measuring span, -1...+5bar: 0.5% of measuring span, -1...+12bar: 0.5% of measuring span |
| Linearity | -0.4...+0.4bar: 0.3% of measuring span, -1...+1bar: 0.3% of measuring span, -1...+2.5bar: 0.3% of measuring span, -1...+5bar: 0.25% of measuring span, -1...+12bar: 0.25% of measuring span |
| Hysteresis | -0.4...+0.4bar: 0.05% of measuring span, -1...+1bar: 0.05% of measuring span, -1...+2.5bar: 0.05% of measuring span, -1...+5bar: 0.05% of measuring span, -1...+12bar: 0.05% of measuring span |
| Response Time | Digital switching output ≤7ms |
| Overload limit | -0.4...+0.4bar: 1bar, -1...+1bar: 4bar, -1...+2.5bar: 16bar, -1...+5bar: 40bar, -1...+12bar: 100bar |
| Burst pressure | -0.4...+0.4bar: 1.5bar, -1...+1bar: 8bar, -1...+2.5bar: 24bar, -1...+5bar: 60bar, -1...+12bar: 150bar |
| Stability | Per year: -0.4...+0.4bar: ≤0.3% of measuring span, -1...+1bar: ≤0.2% of measuring span, -1...+2.5bar: ≤0.2% of measuring span, -1...+5bar: ≤0.2% of measuring span, -1...+12bar: ≤0.2% of measuring span |
| Operating Voltage | IO-Link operation: 18...32VDC, Switch operation: 9.6...32VDC, Nominal voltage: 24VDC |
| Current Consumption | Idle operation: ≤10mA, IO-Link operation: ≤12mA, Switch operation: ≤250mA |
| Number of outputs | 1 digital output in IO-Link operation, 2 digital outputs for switch operation |
| Switching Function Configuration | Hysteresis function (configurable) or window function (fixed setting, symmetrical, ±0.25% of the measuring range) |
| Switching current | ≤100mA per output |
| Medium | Liquid and gaseous medium |
| Fluid Temperature | -40...+125°C (-40...+257°F) |
| Process Connection | G1/4 or NPT1/4 (EN837), G3/4 flush diaphragm (ISO228-1), Clamp DN10/20 (DIN32676) |
| Electrical Connection | M12×1 male connector, 4 pins, A-coded, non-rotating (IO-Link port class A) |
| Digital Communication Interface | IO-Link Device V1.1, downward compatible to V1.0 |
| Transmission Speed | COM3 (230.4kBd) |
| Cycle Time | Min. 2ms |
| Ambient Temperature | Operation and storage: -40...+85°C (-40...+185°F) |
| Relative Humidity | During operation: ≤100%, without condensation, During storage: ≤90%, without condensation |
| Climate class | 3K7 according to EN60721-3-3 |
| Application Range | Indoors and outdoors |
| Degree of Protection | IP65/IP67 according to DIN60529 |
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