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Digital Meter

Scaling Meter

MODEL 482A

  • ■ Full scale display: -19999 to +19999 (optional setting).
    Variable offset display function: -19999 to +19999.
  • ■ Used as standard equipments for peak/bottom memory, zero setting, average calculation function.
  • ■ Possible to select display cycle.

Operation manual

Standard Specifications

Model Designation

482A - - - - -

①Measuring Input

Code Measuring Range Input Resistance Accuracy * Overload
01 ±19.999 mV 100 MΩ ±(0.05% of rdg + 5 digit) DC ±250 V
02 ±199.99 mV 100 MΩ ±(0.05% of rdg + 3 digit) DC ±250 V
03 ±1.9999 V 100 MΩ ±(0.05% of rdg + 3 digit) DC ±250 V
04 ±19.999 V 10 MΩ ±(0.05% of rdg + 3 digit) DC ±250 V
05 ±199.99 V 10 MΩ ±(0.05% of rdg + 3 digit) DC ±500 V
09 1 to 5 V 1 MΩ ±(0.05% of rdg + 5 digit) DC ±250 V
V1 0 to 1 V 1 MΩ ±(0.1% of rdg + 3 digit) DC ±250 V
V2 0 to 5 V 1 MΩ ±(0.1% of rdg + 3 digit) DC ±250 V
V3 0 to 10 V 1 MΩ ±(0.1% of rdg + 3 digit) DC ±250 V
11 ±19.999 μA 10 kΩ ±(0.05% of rdg + 3 digit) DC ±2 mA
12 ±199.99 μA 1 kΩ ±(0.05% of rdg + 3 digit) DC ±20 mA
13 ±1.9999 mA 100 Ω ±(0.05% of rdg + 3 digit) DC ±50 mA
14 ±19.999 mA 10 Ω ±(0.05% of rdg + 3 digit) DC ±150 mA
15 ±199.99 mA 1 Ω ±(0.05% of rdg + 3 digit) DC ±500 mA
19 4 to 20 mA 12.5 Ω ±(0.05% of rdg + 5 digit) DC ±150 mA
A1 0 to 1 mA 100 Ω ±(0.1% of rdg + 3 digit) DC ±50 mA
*Accuracy:
Defined at 23oC±5oC, 45 to 75%RH.
Temperature coefficient:
482A-01, -02, -03, -09,-19…±100 ppm/oC
482A-04, -05 ……………±160 ppm/oC
482A-11, -12, -13, -14, -15, A1, -V1, -V2, -V3 …±150 ppm/oC
Defined at 0 to 50oC

Internal range setting (setting by pin headers):
Volt meter: -03, -04, -05
Receiver: -09, -19

②Power Supply

Code Power Source Voltage
3 AC 100 V
5 AC 200 V
9 DC 24 V

③Data Output

Code BCD Specifications
Blank For display only
BP TTL level (positive logic)
BN TTL level (negative logic)
DN transistor (sink type)

④Decimal Point

Code Description
Blank Front setting
1 External control

⑤Display Color

Code Description
Blank Red LED
G Green LED

General Specifications

Display 0to 19999 Red or Green LED (character height 14.2 mm) withzero-suppress function.
Displayselection Displayof maximum, minimum or amplitude between them is possible.Selectable by front panel switch.
Scalingfunction Fullscale display -19999 to +19999, Offset display -19999 to +19999
Zero-Setfunction Functionto electrically set an initial input value to zero.
Offsetfixing function Functionto fix a display reading of input less than offset value to theoffset value.
Decimalpoint Arbitrarysetting (front setting or external control).
Over-rangedisplay Flashingwith 130% display. When exceeded 19999, flashing with 00000.
Holdfunction Holdsmeasurement data. (noisolation)
Resolution 1/20000
Samplingrate Approx.7.5 times/s
Displaycycle Availableto select from 133ms, 400ms, 1s, 2s, 4s, or 5s
Inputselection Selectionfunction of voltmeter for 03 to 05, receiver for 09 or 19 areavailable.
Inputtype Singleended, floating input.
A/Dconversion △-Σconversion system
Noiserejection
Normal mode (NMR) More than 50 dB
Common mode(CMR) More than 110 dB
Power source line mixing noise  1000 V
Withstandvoltage
Input terminal - external case AC 1500 V 1min.
Power terminal - external case AC 1500 V 1min.
Power terminal - Input terminal  AC 1500 V 1min.
Insulationresistance DC500 V, More than 100 MΩ
Powersupply AC100 V(90to 132 V)
AC200 V(180to 250 V)
DC 24 V(24V ± 10% )
Powerconsumption ACpower source…Approx. 3 VA
DC power source…Approx. 70 mA
Operatingtemperature 0to 50°C
Storagetemperature -20to 70°C
Weight ACpower source…Approx. 300 g
DC power source…Approx. 200 g
Externaldimensions 96(W)×48(H)×89.5(D)mm

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