Sitrans RD300 Remote Display

Sitrans RD300 Remote Digital Display

  • Power supply options Accepts single or dual 24 V DC input of current or voltage
  • Large display The display is 6 digit and readable in sunlight
  • Dual input with maths function Includes: addition, difference, average, multiplication, division, minimum, maximum, weighted average, ratio and concentration
Product Options

Overview

The SITRANS RD300 is a panel mount remote digital display for level, flow, pressure, weighing, and other process instruments. Data can be remotely collected, logged and presented on a local computer using the free software available.

The front panel buttons make the RD300 easy to set up and programme. It also supports up to 8 relays and 8 digital I/O for process control and alarming, with a large dual-line 6-digit display that’s readable in sunlight.

The RD300 can be set up alone or in an optional enclosure which can house up to 6 displays. It can accept single or dual 24 V DC power supply, of current and voltage, making it compatible for use with many field instruments.

 

Manufactured by: Siemens-Milltronics
Model: Sitrans RD300 Remote Digital Display

Services offered for this product

  • Sales
  • Rental
  • Installation
  • Calibration
  • Maintenance

Applications

PC Monitoring
Data logging with RD software
Tank farms
Pump alternation control
Local or remote display of level, flow, pressure and Weighing instrument values

Specification

Mode of operation
Measuring principle Analog to digital conversion
Measuring points 1 or 2 instruments
Input
Measuring range
• Current 4 ... 20 mA, 0 ... 20 mA
• Voltage 0 V DC ... +10 V DC, 1 ... 5 V, 0 ... 5 V
Output signal
Output

• 4 ... 20 mA (optional)

• Modbus RTU

Relays 2 or 4 SPDT (Form C) internal and/or 4 SPST (Form A) external; rated 3 A at 30 V DC and 125/250 V AC resistive load; 1/14 HP (50 W) at 125/250 V AC for inductive loads (optional)
Communications

• RS 232 with Modbus RTU

• RS 422/485 with Modbus RTU

• USB configuration and monitoring port

Accuracy
4 ... 20 mA optional output

± 0.1 % FS

± 0.004 mA

Process input ± 0.05 % of span ± 1 count, square root: 10 ... 100 % FS
Rated operating conditions
Ambient conditions
• Storage temperature range -40 ... +85 °C (-40 ... +185 °F)
• Operating temperature range -40 ... +65 °C (-40 ... +149 ºF)
Design
Weight 269 g (9.5 oz) (including options)
Material (enclosure)

• 1/8 DIN, high impact plastic, UL94V0, color: gray

• Optional plastic, steel and stainless steel (Type 304, EN 1.4301) NEMA 4 enclosures

Degree of protection Type 4X, NEMA 4X, IP65 (front cover); panel gasket provided
Electrical connection
mA output signal 2-core copper conductor, twisted, shielded, 0.82 ... 3.30 mm² (18 ... 12 AWG), Belden 8 760 or equivalent is acceptable
Electrical connection and relay connection Copper conductor according to local requirements, rated 3A at 250 V AC
Power supply
Input voltage option 85 ... 265 V AC, 50/60 Hz; 90 ... 265 V DC, 20 W max. or jumper selectable 12/24 V DC ± 10 %, 15 W max.
Transmitter power supply Terminals P+ & P-: 24 V DC ± 10 %, 12/24 V DC powered models selectable for 24, 10, or 5 V DC supply (internal jumper J4), 85 ... 265 V AC models rated at 200 mA max, 12/24 V DC powered models rated at 100 mA max, at 50 mA max for 5 or 10 V DC supply.
External loop power supply 35 V DC max
Output loop resistance

• 24 V DC, 10 ... 700 ? max.

• 35 V DC (external), 100 ... 1 200 ? max.

Displays and controls
Main display 0.6 inch (15 mm) high, red LEDs
Second display 0.46 inch (12 mm) high, red LEDs, 6-digits: each (-99 999 ... 999 999)
Memory

• Non-volatile

• Stores settings for minimum of 10 years if power is lost

Programming

• Primary: front panel

• Secondary: Meter Copy or PC with SITRANS RD Software

Certificates and approvals CE, UL, CUL
Options
Enclosures Plastic, steel and stainless steel (Type 304, EN 1.4301) NEMA 4 and 4X enclosures

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