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MARIMEX® ViscoScope® D250/4450

MARIMEX® ViscoScope® D250/4450

MARIMEX® ViscoScope® D250/4450

Product catalog summary
Technical Specifications
The document provides technical specifications for the ViscoScope® transmitters, models VS-4450 and VS-D250. These transmitters are compatible with ViscoScope® sensors VA-300 and VA-100. Key features include a 4-line alphanumeric display, RS232 and MODBUS RTU outputs, and optional outputs of 0/4...20 mA or 0/2...10 VDC. The transmitters operate with a power supply of 95…250 VAC or 24 V AC/DC for the VS-4450, and 24V DC for the VS-D250. Dimensions for the VS-4450 are 19"-Standard 3HE 21TE x 180 mm, and for the VS-D250, 142 x 106 x 73 mm.
Operating Conditions
The transmitters measure parameters such as viscosity, process temperature, coil temperature, and resonance frequency. They can calculate temperature compensation, dynamic viscosity, kinematic viscosity, and user viscosity. The ambient temperature range is 0…50 °C.
General Description
The ViscoScope® transmitters maintain the amplitude of the sensor's resonance frequency constant using fast PID control. They offer a 16-bit internal resolution, covering viscosity ranges over 4 decades. The VS-4450 model includes 2 SPDT relays for control or alarms.
Installation and Assembly
The VS-4450 is designed for 19" standard installation, while the VS-D250 is suitable for DIN rail mounting. Wall mounting and installation in Ex-d enclosures are possible with an adapter.
Dimensional Drawing and Model Codes
The document includes dimensional drawings and model codes for both transmitters, detailing power supply options, housing types, and output configurations. The VS-D250 offers housing options like control panel housing, Ex d enclosure, and wall-mounted enclosure, while the VS-4450 is available in a 19" rack format.
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Catalog excerpts

MARIMEX® ViscoScope® D250/4450-1

PROCESS ANALYTIC » VISCOSITY » TRANSMITTER MARIMEX® ViscoScope® D250/4450 Transmitter Transmitter for process viscometer Display Unit 9 Compatible with all ViscoScope® sensors Condition monitoring 9 Panel or field mounting 9 Process documentation via 4-20 mA / fieldbus 9 Local display (4-line display) 9 Div. calculable parameters Technical data Operating conditions Properties Display Measurement parameters RS232 output on the front, MODBUS RTU (standard) Viscosity, Process Temperature, Coil Temperature, External Input, Resonance Frequency Calculable parameters Temperature compensation, Dynamic viscosity, Kinematic viscosity, User viscosity Ambient temperature 0/4...20 mA or 0/2...10 VDC (active) RS232 or RS485 / 2 SPDT relays RS232 or RS485 (note type code) 4450: 4 D250: 2 External input Transmitter operation Moving average (up to 200 measured values) System function, sensor diagnosis, coil temperature, 2 adjustable LEDs Power supply Sensor + Control GmbH & Co. KG The ViscoScope® transmitters of the VS-4450 and VS-D250 series are compatible with all ViscoScope® sensors of the types VA-300 and VA-100 and their predecessor models. The transmitter excites the sensor and keeps the amplitude of the sensor‘s resonance frequency constant with fast PID control. The internal resolution is 16 bits, so that viscosity ranges over 4 decades are also excellently covered. Both transmitters are equipped with a configurable display. The transmission of the measurement data is done via analogue or serial interfaces in industry standard. The model VS-4450 is also available with 2 SPDT relays, which allow time-proportional control or alarms. Installation and assembly The transmitter VS-4450 is designed in 19“ standard and can therefore be installed in all suitable housings. The model VSD250 is designed for mounting on a DIN rail. With an adapter, wall mounting as well as installation in a wall or Ex-d enclosure is possible. Sales & Consulting Phone-volume Phone: +49-6251-8462-0 At Email: [email protected] General description Output card socket

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MARIMEX® ViscoScope® D250/4450-2

PROCESS ANALYTIC » VISCOSITY » TRANSMITTER ViscoScope® D250/4450 Dimensional Drawing model code Basic designation Outputs (2 output card sockets) 1 = 1x 0/4...20 mA or 1x 0/2...10V DC (active) 2 = 2x 0/4...20 mA or 1x 0/2...10V DC (active) RTU = 1x RS485 (Modbus RTU) 1RTU = 1x 0/2...10V DC (active) or 1x 0/4...20 mA and 1x RS485 (Modbus RTU) Power supply 24D:= 24V DC ViscoScope VS-D250 Housing DG = DIN rail housing, IP42 ExG: = Ex d enclosure Basic designation Outputs (4 output card sockets) 1 = 1x 0/4...20 mA or 1x 0/2...10V DC (active) 2 = 2x 0/4...20 mA or 1x 0/2...10V DC (active) 3 = 3x 0/4...20...

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