Rosemount 848T Especificaciones descargar pdf (Pagina 11)

Quick Start Guide

December 2014

Wiring 0-10 volts inputs on the voltage adapter

Wiring voltage 0-10 volt inputs using the adapter follows the same procedure as

mV inputs and thermocouples.

Figure below shows how to connect the voltage leads.

Adapter requirements

1. The adapter is only designed to be used with the 1000 mV sensor type, found

on device revisions 3 and above. If it is ordered pre-installed from the factory,

this will be the default sensor type. If the adapter is ordered as a spare part, the

user must configure the inputs to this sensor type. The user is responsible for

converting the 0-1000 mV transmitter output into a 0-10 volt scale. The

formula to do this is as follows:

2. If input type S004 ((1) dual channel voltage adapter) is ordered, it will be

factory installed on channels 1 and 2. However, if the adapter is required to be

installed on channels 3 and 4, the procedure to do so is a simple process.

Confirm that channels 3 and 4 are configured for 1000 mV sensor input. After

confirmation, remove the adapter from channels 1 and 2 and follow the steps

provided in the 'Installing the Optional Voltage Adapter' section of this guide

to install it on channels 3 and 4.

3. In order to ensure the device remains within the accuracy specifications, the

effect of source impedance must be checked.

Loaded to unloaded, the impedance ratio cannot exceed 0.1%. For detailed

instructions on how to verify this, refer to Section 5 of the User’s Manual.

Transmitter output (in mV)

100

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Actual reading (in V)=

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 17 18

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Rosemount 848T Especificaciones Pagina 11