D490 DIN Panel mount & Intrinsically Safe – Multi-Purpose Indicator
The D490 is a versatile, panel mount, loop powered multi-purpose indicator to display the actual process value, range and loop current.? Besides the focus on level, temperature and pressure applications, the D490 can also work with other measuring units, like %, mA, RPM and more.
Measure. Monitor. Repeat.
For better insights, better decision-making and better process performance.
Key Features & Benefits
- Universal loop powered indicator.
- Intrinsically safe according ATEX, IECEx and CSA C-US.
- Input signal: 4 – 20mA with ultra low voltage drop < 1V DC, allowing easy installation in almost any 2-wire, 4–20mA loop.
- Displays the actual value, measuring unit and loop current.
- Very large 26mm (1″) high digits.
- Number of digits for actual value: 5½.
- Piegraph indication: ten segments.
- Auto backup of all settings.
- Ambient temperature: -30°C to +70°C (-22°F to +158°F).
- LED backlight with separated circuit from the input circuit.
- Easy configuration with clear alphanumerical display.
- Aluminum DIN front panel of 144 x 72mm (5.67” x 2.83”) according DIN 43700 / IEC 61554.
Typical Applications
- Universal applications where a loop powered, multi-purpose display is required without monitoring function, linearization or signal re-transmitting.
- The D490 takes operating energy from an input current (2-wire 4 – 20mA) and has a separated backlight circuit.
- The D-Series is a DIN-sized display and the better alternative for your existing, not waterproof, front panel mount indicators in extreme weather outdoor applications or e.g. in food industries where working environments are often cleaned with powerful water jets.
The measuring unit to be displayed is simply selected through an alfa-numerical configuration menu. The configuration of Span, offset and number of decimals is done through software functions, without any sensitive dip-switches or trimmers. Therefore, the D490 is a versatile indicator that suits many applications. Various options are available, including Intrinsic Safety for hazardous area applications.
The input circuit is separated from the backlight circuit. The D490 analog input indicator accepts 4 - 20mA input signals from a wide range of process instruments, including flow (linear or square root), level, pressure and temperature transmitters. All these process parameters can be displayed in their own engineering units.
Advantages
- Unique, robust IP66, IP67 (NEMA Type4X) panel mount front enclosure made of die cast aluminum, allowing even big jets of water and total immersion.
- Familiar easy operation with the Fluidwell "Know one, know them all" configuration structure, saving time, cost and aggravation.
| Signal Inputs | |
|---|---|
| Multi-Purpose Inputs | 4 – 20mA input loop-powered with ultra low voltage drop < 1V DC |
| Signal Outputs | |
| Alarm Outputs | None |
| Analog Outputs | None |
| Supply | |
| Power Supply | 4 – 20mA input Loop-powered |
| Sensor Supply | None |
| Hazardous Area | |
| Intrinsically Safe | ATEX: Gas: II 1 G Ex ia IIC T4 Ga Dust: II 1 D Ex ia IIIC T200 100 °C Da IECEx: Gas: Ex ia IIC T4 Ga Dust: Ex ia IIIC T200 100 °C Da CSA: IS Class I/II/III, Division 1, Grps. A to G Class 1 Zone 0 AEx ia IIC T4 |
| Explosion Proof | For Explosion Proof applications we recommend the E490 Multi-Purpose Indicator |
| Communication | |
| Protocols | Modbus communication available on F1-Series products. HART communication is available with the F018 Flow Rate Monitor / Totalizer |
Why Choose Process Networks?

ISO-Certified Quality
Our ISO 9001:2015 quality management system ensures full traceability across design, installation, calibration and support.

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Exclusive access to premium instrumentation from leading global manufacturers in Germany, Japan, the US and across Europe.

Long-Term Support & SLAs
Most customers stay with us for years because we stay with them providing ongoing maintenance, calibration and on-site service.

Proven Field Experience
Thousands of instruments installed and tens of thousands points monitored daily on systems we support.









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