Digital Panel Meters with BCD, RS232 & Analog outputs

A7000 Series Strain Gauge Version

Asahi Digital panel meters from Asahi Keiki (Watanabe )
offer impressive specifications, reliability
 and low cost for a variety of applications
 
     Features
  • large 20mm LEDs
  • Medium DIN size
  • Two-stage alarm setting
  • Comparison/alarm, BCD, analog, RS-232C, RS-485
  • 100 to 240 VAC, 12 to 48 VDC
  • Changing alarm display color by 2-color LED allows visible warning
    (when the comparison output function is selected)
The A7000 is a modular panel meter system with a selection of input and output cards to suit your application. Choose from 18 different input modules for AC, DC, Voltage and current, temperature, frequency, and strain gage inputs (this page ). Select from a range of different output options, none, Hi/Lo set point, analog, RS232, RS485, or a combination. (see order details at the bottom of this page)

A7000 Common Specifications

Specifications
Main Display Red LED 20 mm high
Sub Display Green LED 6 mm high
Conversion Rate 1000/sec
Maximum Display 9999
Over-range indication displays "OVER" or "-OVER"
Zero Display Leading "zero" suppression
Decimal point Set to any position
Operating Temperature 0~ 50° C, 35 - 85% RH
Storage Temperature -10 ~+70° C, < 60% RH
Power Supply AC 100 - 240 Volts (AC Main Unit) +/-10%
DC 12 - 48 V ) DC main unit ) +/-10%
Power Consumption ~ 8VA (max load) 7W at DC
Dimensions mm 72 x 36 x 118
Weight 450 g
Dielectric strength (AC)Power supply/ input terminal/ output terminal - AC 1500V 1minute
(DC)Input terminal /output terminal - DC 500 V 1 minute
Insulation resistance DC 500V more than 100 MOhm at above terminals

 

A7000 Strain Gauge Input

<
Code A Sensor Zero Adjustment Range Span Adjustment Range Measurement Range Accuracy Base Price Order
Online
Strain
Guage
5V
10V
-1 to +1 mV/V 1 to 3mV.V -4 ~ +4 mV/V +/-(0.1% of FS)+ 2 digit $528 order online


Output Modules
Analog Output (isolated from input (LO))
Any display range to output analog signal can be set
Output Method PWM
Scaling Digital Scaling
Output Resistive load Accuracy
23 degs C +/- 5 degs
Ripple
0 to 1 V > 10 KOhms +/- 0.5% full scale 50 mV p-p
0 to 10V> > 10 KOhms
1 to 5 V > 10 KOhms
4 - 20 mA less than 550 Ohms 25 mV p-p
 
BCD Output  
Type: Open collector or TTL
Logic Changeable
Output Rate DC30 V 10 mA (open collector)
Funout 2 (TTL)

Hi - Lo Set Point with relay output module
Control Method Computation by microcomputer
Measuring range
comparison
high/Low limit setting including polarity, -9999 to + 9999
Setting condition By sampling period
No setting condition for set value
Comparison Conditions  
Indication > High setpoint HH
High set point >/= indication>/= High Setpoint HI
High set point >/= Indication>/= Lo setpoint GO
Low setpoint > Indication >/= Low Low setpoint LO
Low low setpoint > Indication LL
Comparison Relay
contact capacity
AC125 V 0.3 A resistive load
DC30 V 1A resisitive load
Photo-coupler capacity DC30 V 50 mA
Hysteresis Settable from 1 to 9999 digits for each comparison set value
      
RS232 output module for A7000 DPM
Communication method Full duplex
Synchronous method Start and Stop
Transmission speed /4800/9600/19200/38400 bps
Start Bit 1 Bit
Data length 7 Bit /8 Bit
Error detection Even /odd parity
Stop Bit 1 / 2 Bits
Character Code ASC II
Transmission control none
 
RS485 output module for A7000 DPM
Communication method Full Duplex
Synchronous method Start and Stop
Transmission speed /4800/9600/19200/38400 bps
Start Bit 1 Bit
Data length 7/8 Bit
Parity Even/odd parity
Error detection BCC (Block Check Character) Check sum
Stop Bit 1/2Bits
Character Code ASC II
Transmission control none
Signal Name Signal Direction
Non-reversible output + Input/output
Reversible output - Input/output
Number of connectable meters Up to 31 units
cable length up to 500 m in total
   
Ordering Information
A7-X-1-Y-Z Construct the part numbers by adding the numbers below. The base prices given above include the input board for the ranges shown as well as 100 - 240 VAC power supply board. (You can make this configuration easily in the online store.)    
Affix X Select main board power
(How the unit is going to be powered)
1=AC 100-240V (standard AC outlet )
2=DC 12-48V
 
Add
1 = $0
2= $25.00
order online
Affix Y
You can click on a code to configure and purchase online.

Select Input type from Codes above
Code 1 =DC Voltage ± 99.99 mV - 700V
Code 2 = DC Current ±99.99uA - 99.99mA
Code 3 = DC Current ±999.9mA - 2A
Code 4 = AC Voltage RMS 99.99 mV - 700V
Code 5 = AC Current RMS 99.99 uA- 99.99mA
Code 6 = AC Current RMS 999.9mA - 5A
Code 7 = Resistance Meter
Code 8 = Thermocouple
Code 9 = Tachometer
Code A = Strain
Code B = Process/Comparator

Other Meters( A7000)
Code 9 Tachometer
Codes 8 Temperature

Code A Strain gage (this page)

see base prices above
Affix Z

Select Output Type
0 = None
1 =Relay output
2 = Photocoupler output
3 = BCD Output (TTL)
4 = BCD Output (open collector)
5 = BCD Output (TTL), Photocoupler Output
6 = BCD Output (open collector), photocoupler output
7 = Analog Output
8 = Analog Output, Photocoupler output
9 = RS-232C
A. RS-485
B. RS-232C, Photocoupler output
C. RS-485, photocoupler output

 

0 =$0
1= $68
2 = $61
3 = $92
4 = $92
5- $110
6 = $110
7= $104
8= $123
9 = $55
A = $74
B = $74
C = $95

 

 

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