Seametrics AO45 User Manual download pdf

PUB -19386-1000

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General Information Specifications

The SeaMetrics AO45 is a compact pulse to analog con-

verter. Combined with an IP insertion flow sensor or a

WT turbine meter, it is ideal for flow rate recording, PLC

or data logger input, and proportional chemical feed. The

unit is available in a wallmount enclosure or in a round

cast-aluminum housing mounted directly on a SeaMetrics

meter. The nonmetallic wallmount enclosure is splash-

proof and has a clear cover.

The 4-20 mA analog output is suitable for telemetry,

metering pump pacing, data logging, or control applica-

tions. Trimpots are used to adjust the 4 mA and 20 mA

setpoints. The unit can be factory-calibrated or user

calibrated with the proper equipment. The output is a 4-

20 mA current source, which is compatible with elec-

tronic metering pumps, programmable controllers and

computer input cards.

Power

Sensor 6-24 VDC

Current loop 12-36 VDC (see chart)

Voltage Burden 11 VDC

Temperature 32° - 130° F (0° - 55° C)

Humidity 85% non-condensing relative

Enclosure

Wall mount polystyrene

Meter mount cast aluminum

Input Open collector transistor

(most SeaMetrics meters)

Frequency range (@ 20 mA output)

Low 10 - 100 Hz

High 100 - 1000 Hz

Output Proportional 4 - 20 mA

Response Time 3 sec. to 95 % output

AO45 Analog Transmitter

Instructions

Features

Calibrationby

factoryorinfield

Meterorwall

mounthousings

Twofrequencyranges

Isolatedor

non-isolatedoutput

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Summary of Contents

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PUB -19386-1000Page 1 of 4General Information SpecificationsThe SeaMetrics AO45 is a compact pulse to analog con-verter. Combined with an IP insertio

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3. A non-isolated circuit is simpler because it only re-quires one power supply. As a general rule, the stan-dard SeaMetrics PC1 power supply can pow

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Field Calibration. Ordinarily the AO45 is ordered witha flow sensor or meter and is factory calibrated to a re-quested flow range. However, the unit

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20419 80th Ave. So., Kent WA. 98032 USAPhone: 253-872-0284 Fax: 253-872-0285www.seametrics.com 1-800-975-81534-20mAOutput----++++IP Sensor12-24VDC4m

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Seametrics AO45 User Manual

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