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1. 

Check before Use

 

Thank you for purchasing our A7000 series. The operator who 

uses the instrument should keep this manual on hand. When you 

receive the product, make sure that you have all the parts and that 

none have been damaged during transportation. If any part is 

damaged or missing, contact your sales representative or our sales 

office directly.

 

 

1.1. 

Type Configuration

 

The type configuration of the A7000 series is as shown below. 

Check that there is no difference in the type or specifications 

between the product you ordered and the product you have 

received.

 

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

2. 

Mounting Method

 

2.1. 

Panel Cutout Dimensions

 

 

For panel cutout made when mounting the A7000 series 

measuring unit, follow the figure below.

 

 
 
 
 
 
 
 

2.2. 

Panel Mounting Method

 

To mount the A7000 series measuring unit onto a panel, remove 

the mounting band from the main unit, fit the unit into the panel from 

the front of the panel, and fix it using the mounting band removed 

from the rear of the panel. If you wish to increase the strength of the 

mounting, attach fixing supports with screws as shown in the figure 

below. For fixing supports and screws, contact your sales 

representative or our sales office.

 

 
 
 
 
 
 
 
 
 
 
 
3. 

Description of Terminals and Connection

 

 
 
 
 
 
 
 

3.1. 

Connecting Power

 

 
 
 
 
 
 
 
 
 
 
 

Instruction Manual for MODEL A7X14,5,6-X(AC Voltage and Current Measurement)                                1/12   

Operation Manual for the A7000 Series

 

AC Voltage Measurement: A7X14-X 

AC Small Current Measurement: A7X15-X 

AC Large Current Measurement: A7X16-X 

Mounting band

Lugs

Fixing support

Plastic screw

M3

×

20

Output  section  (different  configuration  for  BCD 
output)

Power section

Input section

(1) Application of voltage or current exceeding the maximum allowable value to the 
input section may damage the instrument. 
(2)  Use  the  supply  voltage  in  the  allowable  range.  Using  it  out  of  this  range  may 
result in fire, electric shock, or an instrument failure. 
(3) Please note that the information contained in this manual is subject to change 
due to product improvements without notice. 
(4)  Every  effort  has  been  made  to  ensure  accuracy  in  the  presentation  of  this 
manual.  However,  should  you  have  any  questions  or  should  any  errors  or 
omissions come to your attention, please contact your sales representative or our 
sales office directly. 
(5) After reading, keep this manual nearby so that you can refer to it as needed. 

CAUTIONS

96 mm or more

+

0

.6

-0

3

3

68

-0

+0.7

58

 m

m

 o

r m

or

e

    CAUTIONS

(1)  Mount  the  instrument  securely  on  a  surface  that  will  be  able  to  bear  its  weight. 
Insufficient  strength  for  mounting  or  incorrect  mounting  may  result  in  the  instrument 
falling and injuring personnel. 
(2)  The  A7000  series  has  no  power  switch.  Connecting  power  to  the  instrument 
makes the product immediately operable.  
(3)  If  the  instrument  is  installed  inside  equipment  to  heat  radiation,  etc.,  and  ensure 
that the in-equipment temperature does not rise above 50°C. 

+

12 to 48V DC

100 to 240V AC(50/60Hz)

Recommended

Torque:0.5Nm

5.8 or less

5.8 or less

Applicable crimp terminal

Terminal No.

1

Power

Power connection terminal. 0V for DC driving

2

Power

Name

Description

Power connection terminal. +V for DC driving

WATANABE ELECTRIC INDUSTRY CO.,LTD. 

UW-33803m 
2020.12 

A7

A:RS-485

9:RS-232C

0:None
1:Relay contact output

7:Analog output

3:BCD output (TTL)
4:BCD output (Open collector)

Output

2:Photocoupler output

5:BCD output (TTL)
  + Photpcoupler output

6:BCD output (Open collector) + Photpcoupler output

8:Analog  Photocoupler output

C:RS-485 + Photocoupler output

B:RS-232C + Photocoupler output

1:DC voltage measurement(

±

100mV,

±

1V,

±

10V,

±

100

V,

or 

±

700

 measurement

3:DC large current measurement(

±

1

A or ±

2Ameasurement)

2:DC small current measurement(

±

100

μ

A,

±

1mA,

±

10mA, 

or±

100mA measurement

4:AC voltage measurement(100mV,1V,10V,100V,
or 700V measurement)

5:AC small current measurement(100

μ

A,1mA,10mA,or 100mA 

measurement)

6:AC large current measurement(1A or 5Ameasurement)
7:Resistance measurement
8:Temperature measurement(TC,RTD)
9:Frequency measurement

B:Process signal measurement(1 to 5V,

±

5V ,4 to 20mA,or 

±

20mA measurement)

Input

A:Load cell input

1:AC power(100 to 240V AC,50/60Hz)
2:DC power(12 to 48V DC)

Power

Содержание A7X14-X

Страница 1: ...ge due to product improvements without notice 4 Every effort has been made to ensure accuracy in the presentation of this manual However should you have any questions or should any errors or omissions come to your attention please contact your sales representative or our sales office directly 5 After reading keep this manual nearby so that you can refer to it as needed CAUTIONS 96 mm or more 0 6 0...

Страница 2: ...a contact output terminal of HH output relay COM terminal for HH and HI output relays OFF OFF ON ON OFF OFF ON OFF ON OFF ON ON OFF ON OFF ON Start Hold terminal Enabled when it has the same potential as or is shorted with terminal COM Peak Hold terminal Enabled when it has the same potential as or is shorted with terminal COM Digital Zero terminal Enabled when it has the same potential as or is s...

Страница 3: ...l of HI output photocoupler Collector output terminal for GO output photocoupler Collector output terminal of LO output photocoupler Collector output terminal of LL output photocoupler Emitter terminal of GO output photocoupler Common emitter terminal for LO and LL output photocouplers Common terminal for analog outputs Voltage Output terminal 0 to 1 V 0 to 10 V 1 to 5 V Current Output terminal 4 ...

Страница 4: ...a display change width to limit variations in display If this parameter is set to 5 the least significant digit displays only 0 or 5 Selects display color Only when no meter relay is available Selects either automatic setting red for HI and LO and green for GO or manual setting for display color type Only when a meter relay is available Selects red or green for display color applied during HI judg...

Страница 5: ...rge current measurement s 26 ranges the full scale input value becomes 9999 when an input is 5 A Setsthehighlimit of thedisplayablerange Avalueexceedingthedigital limiter HI setpoint isnot updatedandisheldat theset value Selects the analog output s output range Only when analog output is provided Sets the relationship between display and analog output Only when analog output is provided Sets the d...

Страница 6: ...tting Press the Increment key several times to set a desired value this setting example sets the number of moving averaging times to 4 Measurement operation Pressing for a prolonged time or Press the Increment key to move to moving averaging setting Press the Enter key to return to measurement operation If the Mode key is pressed you will be returned to the setting menu press the Increment key to ...

Страница 7: ...rement key Press the Enter key to return to measurement operation If the Mode key is pressed you will be returned to the setting menu press the Increment key to move to the next parameter Next the following describes the concept of analog output scaling Analog output sets an output value in relation to the indicated value The operation procedure is the same as that of a full scale indicated value ...

Страница 8: ...e Mode key the comparison output type setting content appears O U high and low limit judgment Err tolerance judgment Press the Increment key several times to move to the comparator data menu Press the Mode key to display comparison output type To change the pattern use the Increment key Press the Mode key to return to the setting menu In this setting example the display returns to comparison outpu...

Страница 9: ... function regards display at any timing as zero and indicates varying width from this point on This function can be activated or deactivated by terminal control or front panel key based operation which is selected according to the setting of condition data For terminal control the DZ and COM terminals are short circuited or made to have the same potential to activate the digital zero function caus...

Страница 10: ...ication Printout command signal PC Positive pulse output after completion of measurement PC width depends on sampling Output logic Switchable PC logic not switchable Output signal TTL level fan out 2 COMS compatible Open collector output NPN type Measured data Transistor ON when negative logic is logic 1 Polarity signal Transistor ON for negative indication Excess signal Transistor ON for excess i...

Страница 11: ...ts Connected Line Length Delimiter E M H H H I G O L L R E P H D Z P 1 P 2 P 3 M E L O 33 68 80 87 72 7 118 36 3 delay time 1 x 2 500 μs 3 delay time 1 x 2 500 μs 4 Internal sampling Set sampling S H terminal P C BCD defined 1 2 3 Comparison output updating 4 Start hold type A Start hold type B Delay time 1 x 2 500 μs Delay time 1 x 2 500 μs 4 Internal sampling Set sampling S H terminal P C BCD de...

Страница 12: ...miter HI and digital limiter LO of scaling data have the samevalue Indicates that analog output HI and analog output LO of scaling data have the samevalue Linearizedataerror Turning power ON with the Enter key and Mode key held down causes all the parameters to return to the initial values defaults Display Memoryswitcharea checksumerror of mainmemory Calibrationdataarea checksumerror of mainmemory...

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