MODEL: 73VR21

73VR21 SPECIFICATIONS

ES-7395 Rev.29 Page 16/18

https://www.m-system.co.jp/

alarms are triggered and reset.

Oldest data is overwritten with new data when the number

of records reaches its limit.

Comment history file: Records comments written in trend

views with time index. Oldest data is overwritten with new

data when the number of records reaches 1000 files.

Configuration file: Stores the 73VR21x setting.

File format: Binary

Oldest measured data is overwritten with new data or data

recording is stopped when the card memory is full.

■ ALARM

• Analog Alarm

Alarm setpoints: Max. 4 points per channel

Alarm type: High / Low

Deadband: Set in engineering unit values

Output: 1 point at Alarm Output

Terminal stored information: Date/time of alarm events (trip

and reset), Pen No., Tag Name and Alarm Message

Number of stored alarm events: Depends upon the CF Card

capacity.

128 MB 250 events

256 MB 500 events

512 MB or 1 GB 1000 events

■ CALCULATION FUNCTIONS

Number of channels: 12 channels

Operations

Arithmetic: Addition/subtraction, Multiplication, Division

Logical: AND, OR, NOT, XOR

Mathematical: Square root extractor, Power

Accumulation: Analog accumulation

Filter: Moving average, First order lag

Hold: Peak (maximum) hold (tracking increasing signal),

Peak (minimum) hold (tracking decreasing signal)

F value: F value

Anemoscope (16 directions)

Alarm: Alarm trip can be programmed for calculated results.

■ DATA DISPLAY FUNCTIONS

• Trend View

Chart direction: Perpendicular or horizontal

Number of pens displayed: 2, 4, 6, 8 per view

Number of display views: 4

Chart speed: Chart speed is described as number of pixels

to plot single data sample. (pixel(s)/samples)

4, 1, 1/5, 1/32,

1/160 (not selectable with 100 msec. storing rate),

1/480 (not selectable with 100 msec. storing rate),

1/960 (not selectable with 100 msec. storing rate)

Display rate: 1 second

Pen thickness: Normal and wide

Digital indicator: Shows momentary value.

Alarm indicator: Shows alarm status of the channels

displayed on the screen.

Comment: Shows comments entered manually.

Scale: Linear and square root;

Switchable to the engineering unit scale.

• Bargraph View

Bargraph direction: Perpendicular or horizontal

Number of pens displayed: 2, 4, 6, 8 per view

Number of display views: 4

Display rate: 1 second

Digital indicator: Shows momentary value.

Alarm indicator: Shows alarm status of the channels

displayed on the screen.

Scale: Linear and square root;

Switchable to the engineering unit scale.

• Overview

Number of pens displayed: 2, 4, 6, 8, 16 per view

Number of display views: 13

Display rate: 1 second

Alarm indicator: Shows alarm status and date/time of the

last alarm trip and reset for the channels displayed on the

screen.

• Retrieve View: Shows data stored in the CF Card.

Number of pens displayed: 2, 4, 6, 8 per view

Number of display views: 4

Data search: Scrolling the chart, specifying a specific time

index, or searching by maximum/minimum values.

Long span view: Retrieved data is thinned out so that a

longer time span can be displayed on the chart.

• Alarm History View: Shows data stored in the alarm

history file.

Number of displayed alarm events: 16

Number of display views: 1

Display update: Automatically updated by a new event

Data search: Scrolling the view or specifying a specific time

index.

Jump: Scroll the view to an alarm event to show the relevant

data on Retrieve View.

• Comment History View: Shows data stored in the

comment history file.

Number of displayed alarm events: 16

Number of display views: 1

Data search: Scrolling the view or specifying a specific time

index.

Jump: Scroll the view to a comment to show the relevant

data on Retrieve View.

■ ETHERNET COMMUNICATION

Monitoring data and setup of the 73VR21x is possible on the

PC connected via Ethernet.