Siemens SITRANS RD100 Digital Display

Key Features of the SITRANS RD100

The RD100 has several benefits, some of which we have listed for you below:

• 2-Wire Loop Powered: Operates on a 4 to 20 mA current loop, adding only 1 V to the loop
• NEMA 4X Enclosure: IP67-rated, impact-resistant design suitable for indoor and outdoor use
• Temperature Range: Approved for operation in environments ranging from -40 to +85 ºC (-40 to +185 ºF)
• Hazardous Location Approval: FM/CSA approved as intrinsically safe and non-incendive
• Easy Setup: Simplified two-step calibration process using only two non-interacting potentiometers
• Dual Input Modes: Allows easy servicing without interrupting the loop
• Versatile Applications: Capable of displaying various process variables such as level, flow, pressure, temperature, and weight
• Maintenance-Free: Designed to require minimal maintenance under normal operating conditions
• Simple Installation: User-friendly design allows for straightforward mounting and wiring.

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Versatile Applications for Every Environment

The SITRANS RD100 is a highly adaptable remote digital display that can be deployed in a wide range of environments and applications. Its robust design allows for installation in both indoor and outdoor settings, making it suitable for varying temperature conditions, from hot to cold. With approvals from FM and CSA as intrinsically safe and non-incendive, the RD100 can be used in safe and hazardous areas alike. This versatility is further enhanced by its ability to display essential process variables such as level, flow, pressure, temperature, and weight within a 4 to 20 mA loop, making it an ideal choice for various industrial processes. The simple two-step calibration process ensures minimal downtime during installation and maintenance.

Key Applications:

• Level measurement
• Flow monitoring
• Pressure readings
• Temperature tracking
• Weighing applications.

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Comprehensive Approvals for Safety and Compliance

The SITRANS RD100 boasts a range of critical approvals, ensuring it meets stringent safety standards for use in hazardous environments. It is classified as intrinsically safe under FM and CSA guidelines, making it suitable for operation in:

Intrinsically Safe:

• FM/CSA Class I, II, III, Division 1, Groups A to G (T4)
• FM/CSA Class I, Zone 0, Group IIC

Non-incendive:

• FM/CSA Class I, Division 2, Groups A to D
• FM/CSA Class II and III, Division 2, Groups F and G

These certifications ensure that the device can operate safely in the presence of flammable gases and dust. For detailed installation guidelines, customers can refer to the "RD100 Remote Display - Approval Connections Control Drawing," which is included with the unit and available on the Instruction Manual CD. This comprehensive set of approvals makes the RD100 an excellent choice for customers seeking reliable and safe instrumentation solutions in challenging conditions.

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Simple Calibration Process for Accurate Readings

Calibrating the SITRANS RD100 is a straightforward process that ensures accurate measurements for various applications. To begin, you will need a calibrated current source and a screwdriver. First, remove the enclosure cover and display PCB by loosening the four screws on the enclosure cover. Then, loosen the left screw holding the display PCB while loosening the right screw about four turns to keep the display PCB attached to the enclosure. Rotate the display PCB 90° to access the input signal PCB and connect the calibrated current source.

The calibration controls, labeled LO and HI, are conveniently located to the left of the display. Start by applying a signal of 4 mA and adjusting the LO control to display the desired reading. Next, apply a signal between 16 and 20 mA, adjusting the HI control accordingly. Finally, make any minor adjustments to the LO and HI controls to fine-tune the calibration. This easy two-step calibration ensures the RD100 provides reliable and accurate process readings in a variety of industrial settings.

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