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計測機器 DayTronic 5D40のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。DayTronic 5D40 20 ページ。 Panel meter, frequency conditioner module

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ATA AND

ATA

ISPLAY

Updated four times a second, the 3000PLUS instru-

ment's six-digit data LED data display is automatically

scaled to count by a resolution of 1, 2, or 5 to a maxi-

mum reading of ±199990.

currently in effect, a flashing display during normal run-

time operation indicates that an overrange condition

has occurred. In this case, the displayed measurement

reading may be invalid.

During normal instrument setup, the operator will be

called upon to indicate the DESIRED FULL-SCALE

READING IN ENGINEERING UNITS (the "FULL SCALE

UNITS" or "FSU" value), to correspond to a full-scale

output of 5.000 volts. This can be done via the front-

panel setup procedure (as explained in Section 3.B) or

via the Configurator software, on a setup or run-time

basis (as explained in Section 4). The DECIMAL-

POINT RESOLUTION of the data display for Channels

1 and 2 will always match that of the last-entered FSU

value.

You can also specify a DISPLAY OFFSET value

("DSO"), if desired—again, either through the front panel

or the Configurator software. The DSO is a value of

numeric offset (positive or negative) to be continuously

applied to the displayed reading of Channel 1 or 2 (see

below). Note that the DSO is applied in addition to any

zero offset resulting from instrument calibration (Sec-

tions 3 and 4) and to any specified tare offset (Section

5.D).

In addition to the normal-mode analog filtering fur-

nished by the installed 5D40 Conditioner, the 3000PLUS

can apply selectable DIGITAL FILTERING ("DFL") to the

data display to allow smooth, stable readout of dynamic

variables. The DFL number ranges from 0 through 9 to

indicate increasing amounts of digital smoothing. Like

the FSU and DSO values, it may be entered through

either the front panel or the Configurator software.

Use of the data display for manual setup of the

3000PLUS instrument is described in detail in Section 3

("Front-Panel Configuration and Calibration").

HANNEL

NDICATION

At any time, you can select any one of the 3000PLUS

instrument's three separate output channels for display:

• Channel 1—the meter's basic ±5-VDC scaled out-

put, representing measured engineering units (after

calibration). It is produced solely for display and

interrogation via the CHANNEL (CHN) command

(described in Appendix A).

TATUS

Regardless of the scaling

3000PLUS

5D40 I

WITH

1. I

ISPLAYS

• Channel 2—the "auxiliary" DAC output, which con-

tinuously operates on Channel 1 for purposes of

limit evaluation, peak capture, tare offset, etc. It is

produced for display, interrogation via the CHN

command, and generation of the "raw volts" analog

output (Channel 3).

• Channel 3—the instrument's "scaled voltage" out-

put, which is continuously proportional to Channel 2.

It may be set to a full scale of either ±5 or ±10 VDC,

and is available at the rear of the 3000PLUS as both

DC voltage and 4-20 mA output (see Section 2.D)

As explained in the following section, the front-panel

SCROLL button may be used during normal run-time

operation to cycle through the three channel displays.

When Channel 2 or 3 is being displayed, the corre-

sponding front-panel indicator LED (C2 or C3) will

light—see Fig. 2. No indicator lights when Channel 1 is

displayed.

The channel that is displayed whenever the 3000PLUS

is powered up is always the channel that was on dis-

play when the meter was last turned off.

OMMUNICATIONS

Fig. 2 also shows the 3000PLUS instrument's front-

panel CM LED. This indicator lights when the RS232

serial communications port (Section 2.B) is in receipt of

one or more transmitted ASCII characters (which may

or may not constitute a valid MNEMONIC COMMAND—

see Appendix A).

IMIT

TATUS

NDICATION

Whenever continuous limit monitoring of the "auxiliary"

output (Channel 2) is enabled, the appropriate front-

panel limit status indicator (Fig. 2) will show the LIMIT

ZONE in which Channel 2's existing data reading lies

(regardless of whether Channel 2 is the one currently

Under a reading of about 32000, the display's least significant

digit will change by 1; from 32000 to 64000, it will change by 2;

and over 64000, by 5.

That is, the precision (decimal-point location) both of the basic

±5-volt scaled output (Channel No. 1) and of the "auxiliary" DAC

output (Channel No. 2) will always reflect that of the currently

stored FSU number—as will that of other setup values that

directly relate to the 3000PLUS's scaled engineering-units read-

ing, including display offset, high/low limit and hysteresis val-

ues, "peak defeat" threshold, tared output value, and all

calibration numbers (both "absolute" and "two-point") that are

expressed in units.

Since the display offset is automatically set to zero during

instrument calibration (either "absolute" or "two-point"), you

should set a nonzero DSO value only after calibration has been

performed (Sections 3 and 4).

The Configurator software's "Live Output Window" (described

in Section 4.D), lets you view any selected channel and modify

applicable output characteristics on a run-time basis.

NSTRUCTION

NTRODUCTION

NDICATION

. SB.3

ANUAL V

3KP40 - 1.7