| 4256 | - | □ | - | □ | - | □ | - | □ | - | □ |
| ① | ② | ③ | ④ | ⑤ |
| Code | Measuring range | Input impedance | Accuracy | Over load |
|---|---|---|---|---|
| 01 | ± 9.999 mV | 100 MΩ | ± (0.1 % of rdg + 2digit) | DC ± 50 V |
| 02 | ± 99.99 mV | ± (0.05 % of rdg + 1digit) | DC ± 250 V | |
| 03 | ± 999.9 mV | |||
| 04 | ± 9.999 V | 10 MΩ | ||
| 05 | ± 99.99 V | DC ± 500 V | ||
| 06 | ± 699.9 V | ± (0.1 % of rdg + 2digit) | DC ± 750 V | |
| 09 | 1 to 5 V | 1 MΩ | ± (0.05 % of rdg + 2digit) | DC ± 250 V |
| V2 | 0 to 5 V | |||
| 11 | ± 9.999 μA | 10 kΩ | ± (0.1 % of rdg + 1digit) | DC ± 2 mA |
| 12 | ± 99.99 μA | 1 kΩ | DC ± 20 mA | |
| 13 | ± 999.9 μA | 100 Ω | DC ± 50 mA | |
| 14 | ± 9.999 mA | 10 Ω | DC ± 150 mA | |
| 15 | ± 99.99 mA | 1 Ω | DC ± 500 mA | |
| 16 | ± 999.9 mA | 0.1 Ω | ± (0.2 % of rdg + 2digit) | DC ± 2 A |
| 19 | 4 to 20 mA | 12.5 Ω | ± (0.1 % of rdg + 2digit) | DC ± 150 mA |
| Code | Measuring range | Input impedance | Accuracy | Over load |
|---|---|---|---|---|
| 22 | 99.99 mV | 10 MΩ | ± (0.2 % of rdg + 5digit) | AC 10 V |
| 23 | 999.9 mV | AC 100 V | ||
| 24 | 9.999 V | AC 700 V | ||
| 25 | 99.99 V | |||
| 26 | 699.9 V | ± (0.3 % of rdg + 5digit) | ||
| 32 | 99.99 μA | 1 kΩ | AC 20 mA | |
| 33 | 999.9 μA | 100 Ω | AC 50 mA | |
| 34 | 9.999 mA | 10 Ω | AC 150 mA | |
| 35 | 99.99 mA | 1 Ω | AC 500 mA | |
| 36 | 999.9 mA | 0.1 Ω | ± (0.5 % of rdg + 10digit) | AC 2 A |
| 37 | 5 A | 0.01 Ω | AC 10 A |
| Display |
0 - 9999, red or green LED (character height 15 mm), “-” polarity, with zero-suppress function. During the measuring mode, the display switches from current value to peak memory, bottom memory, display amplitude, and current value. ''PM'' illuminates at peak memory display, ''BM'' illuminates at bottom memory display, both ''PM'' and ''BM'' illuminates at display amplitude display. |
|---|---|
| Decimal point indication | Arbitrary position by setting from the front panel and the rear terminals |
| Over-range display |
Flashes at 130 %, but blinks ''0000'' when exceeding ''9999''. Flashes at full scale value when exceeding ''699'' for model 4256-06 Flashes at full scale value when exceeding 9 V for model 4256-26. |
| Scaling function |
Full-scale display: -9999 to +9999 (0 to +9999 for the AC input type) Offset display: -9999 to +9999 (0 to +9999 for the AC input type) |
| Resolution | 1/10000 |
| Sampling rate | 15 times / s |
| Display cycle | with selectable function from 67ms, 400ms, 1s, 2s, 4s, 5s |
| Input response | within 2 samplings or within 1-display cycle, whichever longer |
| Input method | Single ended, floating input |
| A/D conversion | ⊿-∑ conversion method |
| Noise Rejection |
Normal mode (NMR) – More than 50 dB. Common mode (CMR) – More than 110 dB. Noise through power supply line – 1000 V (at AC voltage power supply) |
| Comparative digit | Figure: 4-digit, Pole: 1-digit |
| Comparative method |
2-isolated contact, programmable of high/low point (for model HI, GO, and LO) CPU comparative judgement method (against display value) |
| Setting method | by Digital switch setting |
| Width of hysteresis | 1-999, set the same value for 2-comparative output |
| Comparative display | LED display, HI(red), GO(green), and LO(yellow) |
| Comparative output |
Relay contact, 1-SPDT Hi and Lo, 250 V 1 A AC (resistive) NPN Open collector, Max. DC 30 V 30 mA, Max. 1.6 V saturation voltage |
| Delay output |
ON delay, 0 to 60 seconds, arbitrary setting by 1 second step from the front switch (set the same value for 2-comparative output) |
| Hold | Hold for the measuring data, comparative output, and data output |
| Reset | Default the comparative output (break) |
| Insulation Resistance | DC 500 V, More than 100 MΩ |
| Withstand Voltage |
Input terminals – External case: AC 1500 V each for 1min. Power supply terminals – External case: AC 1500 V each for 1min. Power supply terminals - Input and output terminals: AC 500 V each for 1min. |
| Power Supply | AC 100 to 240 V (50/60 Hz), DC 12 to 24 V |
| Power Consumption | Approx. 5 VA at AC 100 V, 7 VA at AC 200 V, 180 mA at DC 12 V, 90 mA at DC 24 V. |
| Operating Temperature | 0 to 50 °C |
| Storage Temperature | -20 to 70 °C |
| Weight | Approx. 250 g (both AC and DC power supply) |
