D-MAX DMC-20SEC Bedienungsanleitung PDF herunterladen (Seite 5)

Note:

DO NOT CHANGE THESE

SETTINGS OR YOU WILL

RENDER THE METER

INOPERATIVE!

11 May, 2006 DMC-A2 Series (ALD-00029)

Macro Sensors Tel. (856) 662-8000

www.macrosensors.com

Analog Output Scaling Mode

The analog output module is a standard single channel,

programmable, isolated, 16-bit analog output that can be scaled

to any desired span between –199999 to 999999 display counts

using the analog output scaling mode.

The Analog Output Scaling Mode is a two part mode that

covers both scaling and calibration of the output signal. The

scaling part of the procedure can be changed independently of

the output calibration part and vice versa.

Scaling

Scaling requires setting the zero [ZEro] and full scale [F_SCL]

span parameters of the analog output.

Zero is the display setting at which the analog output is required

to be at its calibrated low output. Full scale is the display setting

at which the analog output is required to be at its calibrated

high output.

There are no limits to the difference between the zero and full

scale settings. The difference can be anywhere between 1

count and the entire display range of the meter.

Setting the 1st and 2nd digit to 25 [CAL] [25X] accesses the

analog output signal span scaling procedure.

By selecting a number in the 3rd digit, one of the following

analog output signals are available for scaling:

• Analog Output 1 [251].

• Analog Output 2 [252].

Calibration of the Analog Output Signal

Calibrating the analog output means ensuring the LOW and

HIGH analog output signals are correct using a calibration

device such as a multimeter. This should not be confused

with calibrating the physical position of the sensor to the

meter (see page 4)!

Calibration requires setting the [CAL_L] and [CAL_h]

parameters. [CAL_L] is used to set the calibrated low analog

output, and [CAL_h] is used to set the calibrated high analog

output. The calibrated low and high outputs can be set

anywhere between –0.3 to 21 mA for current, or –0.3 to 10.5 V

for voltage.

Before calibrating the analog output:

• Select the data source for the selected analog output in Code

• Connect a multimeter to the analog output connector at the rear

of the meter (pin 16 positive, pin 17 negative).

• Make sure the multimeter is set to read the appropriate signal

type: volts or milliamps.

Enter the calibration mode and calibrate the analog output

module.

Setting the 1st and 2nd digits to [15X] selects the analog

output calibration procedure.

By selecting a number in the 3rd digit, one of the following

analog output signals are available for calibration:

• Analog Output 1 [151].

• Analog Output 2 [152].

A step by step procedure that shows an actual example of

how to scale the analog output is shown on page 12 of this

manual.

Note:

DO NOT CHANGE

THESE SETTINGS OR

YOU WILL RENDER THE

METER INOPERATIVE!

A step by step procedure that shows an actual example of

how to calibrate the analog output signal is shown on page

13 of this manual.

Note:

Calibration procedures can not be carried out on a

signal (Result, CH1 or CH2) if the signal has an active

linearization table. The table or tables must be disabled

before calibration and then re-activated when calibration

is complete

Calibration Mode (cont.) Zero Options

NULL

The NULL position allows the user to adjust the LVDT core until

the LVDT output is zero. The sensor must be brought to NULL

position before calibrating.

Display Zero and Reset Display Value Function

The controller has been programmed with a display zero and

reset display value function that operates on the selected primary

display reading only.

The display zero function is used to zero the display. Display zero

is initiated from a remote switch (not supplied) connected across

the common and hold pins at the rear of the controller (Terminal

2: Pin 4 Common, Pin 2 Hold).

The reset display value function is used to restore the true

calibrated value on the display. Reset display value is initiated from

a remote switch connected across the common and lock pins at

the rear of the controller (Terminal 2: Pin 4 Common, Pin 1 Lock).

The display zero value and reset display value are not retained

during a power outage.

The display zero and reset display value functions are often used

for cut, measure, and trim applications.

1 2 3 4 5 6 7 8 9 10 ... 27 28

Kommentare zu diesen Handbüchern

Keine Kommentare

D-MAX DMC-20SEC Bedienungsanleitung Seite 5

Kommentare zu diesen Handbüchern

Verwandte Produkte und Handbücher für Sicherheitskameras D-MAX DMC-20SEC