DayTronic 5D78 Manual de instruções - Página 5

Procurar online ou descarregar pdf Manual de instruções para Instrumentos de medição DayTronic 5D78. DayTronic 5D78 20 páginas. Panel meter, ac strain gage conditioner module

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ENERAL

3000PLUS P

ANEL

Incorporating Daytronic's 5D Series Signal Condition-

er Modules, the 3000PLUS Panel Meter is a field-scal-

able indicator featuring operator-programmable signal

processing and PC/PLC communications. With a

durable front panel and secure screw terminals for all

power and I/O connections, this mechanically and elec-

trically rugged instrument is ideal for pump, motor,

hydraulic, and other high-noise monitoring applications.

Accepting the fully conditioned output of any standard

plug-in 5D module*, the 3000PLUS maintains signal

integrity to deliver accurately scaled analog output,

while sampling all data at 16-bit resolution. The data dis-

play provides selectable digital filtering for even greater

readout stability.

The operator can easily select any of three separate

output channels for display, as explained in Section 1.D:

• the meter's standard ±5-VDC scaled output

(Channel 1), representing measured engineering

units (after calibration)

• the "auxiliary" DAC output (Channel 2), which

serves to monitor and process Channel 1, and to

generate Channel 3

• the "scaled voltage" output (Channel 3), which is

continuously proportional to the reading of the auxil-

iary output (Channel 2). Channel 3 may be set to a

full scale of either ±5 or ±10 VDC, and is available

from the rear of the 3000PLUS as both voltage and

4-20 mA output (see Section 2.D).**

The auxiliary analog output (Channel 2) is used for

• HI/OK/LO limit monitoring with selectable hystere-

sis windows, front-panel annunciation, and relay out-

puts for local process control (see Section 5.E for

full details)

• high-speed positive or negative peak capture with

TTL-level "have peak" output, selectable "backout"

and "peak defeat" thresholds, and user-adjustable

leak rate (Section 5.B)

• a signal hold to allow captured peaks and other

values to be transferred to computer for processing

(Section 5.C)

• automatic application of a desired tare offset (Sec-

tion 5.D)

* "V" and "S" models may not be used with the 3000PLUS.

** The ±5-VDC output of the installed 5D78 conditioner (prior to

A/D conversion) is also available from the rear of the meter.

3000PLUS

ESCRIPTION AND

ETER

5D78 I

WITH

NSTRUCTION

1. I

NTRODUCTION

PECIFICATIONS

Separate logic inputs provide external control of peak

capture, signal hold, tare application, and the release of

latched limit violations.

As explained in Sections 3 and 4 of this manual, you

can quickly set up the 3000PLUS either via the simple

front-panel button menu or via the configuration soft-

ware supplied with the unit. Operator-entered ranges,

filters, calibration points, and other setup parameters

are always specific to the installed 5D Series condition-

er.

A standard RS232 interface operating at a fixed rate of

19.2K baud allows connection of an external PC for

instrument configuration and on-line monitoring. It may

also be used for direct communication of simple ASCII

mnemonic commands both for run-time reconfiguration

and for interrogation of current data and setup values.

Employing the run-time version of Microsoft

2000, the 3KP CONFIGURATOR software supplied

with the Model 3000PLUS makes short work of meter

setup. Communicating via the RS232 link, the Configu-

rator lets you define, store, edit, download, upload, and

manage any number of "configurations" for your

3000PLUS. As explained in Section 4, "off-line" configu-

rations can be easily created and downloaded, or you

can use the "Live Output Window" to view and modify

the present configuration of the connected 3000PLUS

instrument on a purely run-time basis.

The Configurator also lets you perform selected run-

time operations, including

• both "absolute" and two-point (deadweight) calibra-

tion

• viewing any of the meter's three "live" analog out-

puts and adjusting it as desired

• applying a signal hold command

• releasing any and all latched limits

• sending standard mnemonic commands to the

meter

• activating the shunt resistor for verification of sensor

calibration data.

5D78 AC S

ODEL

AGE

ONDITIONER

Delivering a high-level filtered analog output of ±5 VDC,

the Model 5D78 is a single-channel strain gage condi-

tioner of phase-sensitive carrier-amplifier design.

While intended primarily for applications involving trans-

former-coupling to the transducer bridge (as with con-

ventional rotary-transformer torque sensors), the

Model 5D78 can also be used when high sensitivity is

required or where the electrical environment is espe-

ANUAL V

Access

TRAIN

ODULE

3KP78 - 1.1

. SB.3