Digital Meter
AC Voltmeter/Ammeter
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.
Standard Specifications
Model Designation
| 482A | - | □ | - | □ | - | □ | - | □ | - | □ |
| ① | ② | ③ | ④ | ⑤ |
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 |
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| Withstandvoltage |
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| Insulationresistance | DC500 V, More than 100 MΩ | ||||||
| Powersupply | AC100 V（90to 132 V） AC200 V（180to 250 V） DC 24 V（24V ± 10% ） |
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| Powerconsumption | ACpower source…Approx. 3 VA DC power source…Approx. 70 mA |
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| Operatingtemperature | 0to 50°C | ||||||
| Storagetemperature | -20to 70°C | ||||||
| Weight | ACpower source…Approx. 300 g DC power source…Approx. 200 g |
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| Externaldimensions | 96(W)×48(H)×89.5(D)mm |
