Emerson CMF200A Uživatelský manuál stáhnout pdf (Strana 12)

12 Micro Motion

2-Wire Coriolis Flow and Density Meters

Input/output signals and power supply

User interface

Transmitter One passive 12–20 mA output

• Isolated to ±50 VDC from earth ground

• Maximum load limit: 600 Ω

• External power: 17–36 VDC

•0,8W maximum

• Can report mass flow, liquid volume flow, gas standard volume flow, density,

temperature, or drive gain

• Output is linear with process from 11,9 to 20,25 mA

Adapter-barrier Power supply

• 18–42 VDC

• Maximum supply current: 170 mA

• Maximum power: 3 W

One active or passive 4–20 mA output

• Maximum load limit (active output): < 1 kΩ

• Maximum loop voltage (passive input): < 36 V

• Linearity: < 0.05% span

One passive 12–20 mA input

• HART pass-through

• Loop supply: > 25 V

• HART-compliant impedance: > 250 Ω

• Compliant with ATEX, CSA, and IECEx intrinsic safety requirements

Conforms to NAMUR NE21 Version 08.22.2007

Standard user interface with LCD panel

• Suitable for hazardous area installation.

• User interface module can rotate 360° on the transmitter in 90° increments.

• Two clips for HART/Bell 202 connections (requires removing transmitter housing cover).

• Two membrane pushbuttons for local operation (requires removing transmitter

housing cover).

• Depending on purchase option, transmitter housing cover has glass or plastic lens.

• User interface module includes LCD panel. LCD line 1 displays process variable; line 2

displays engineering unit of measure, with optional alarm indication.

• LCD panel can be configured to scroll through display list at user-specified scroll rate.

Display list includes user-selected process variables and, optionally, all active alarms.

• Display update rate is user-configurable: 100 to 10000 milliseconds.

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Emerson CMF200A Uživatelský manuál Strana 12