SITRANS RD300

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The SITRANS RD300 is a panel mount remote digital display for process instrumentation and acts as a multi-purpose, easy to use, rate/totalizer ideal for flow rate, total, and control applications.

Область применения

The RD300 is a remote display for level, flow, pressure, weighing, and other process instruments. This display also acts as a multi-purpose, easy to use rate/totalizer idea for flow rate, total, and control applications.

Data can be remotely collected, logged and presented on yourlocal computer using the free downloadable RD Software.

The display accepts a single input of current and voltage. This makes the RD300 an ideal fit for use with most field instruments.

The RD300 can be set up as a standard panel mount, or combined with optional enclosures to allow it to house up to 6 displays.

Key Applications: Tank farms, pump alternation control, local or remote display of level, flow, pressure and weighing instrument
values, PC monitoring and data logging with RD Software.

Чертеж

SITRANS RD300 dimensions

Особенности

Easy setup and programming via front panel buttons or remotely using RD software
Display readable in sunlight
Input: accepts current and voltage
Single or dual 24 V DC transmitter power supply
Serial communication using built in protocol or Modbus RTU
Supports up to 8 relays and 8 digital I/O for process control and alarming
32-Point Linearization, square root or exponential linearization
Multi-pump alternation control
Supports total, grand total or non-resettable grand total
9-digit totalizer with total overflow feature
Large dual-line 6-digit display
Configure, monitor, and datalog from a PC

Схема подключения

SITRANS RD300 connections

Технические данные

Mode of operation
Measuring principle	Measuring principle
Measuring points	• 1 instrument
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 VDC and 125/250 VAC 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
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, UL94V-0, 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
Isolated 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 VDC supply.
External loop power supply	35 V DC max.
Output loop resistance	• 24 V DC, 10 ... 700 Ω max.
	• 35 V DC (external), 100 ... 1 200 Ω 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

Полезное

ENG_394169.PDF