Digital Meter / Printer
Integrating Digital Panel Meter
(Analog input)
MODEL 471A
- ■ Both instantaneous measurement value like flow rate and totalized value can be displayed.
- ■ LCD display with large and clear characters.
- ■ Power supply can be selectable:
Free AC voltage or DC 24 V or DC 110 V. - ■ Protection rank of front panel is IP65
Model Designation
| 471A | - | □ | - | □ | - | □ | - | □ | - | □ | - | □ |
| ① | ② | ③ | ④ | ⑤ | ⑥ |
① Input specification
| Code | Measurement range | Input resistance | Max. allowable input |
|---|---|---|---|
| 01 | DC 0 to 10 mV | More than 1 MΩ | DC ± 250 V |
| 02 | DC 0 to 100 mV | ||
| 03 | DC 0 to 1 V | 1 MΩ | |
| 04 | DC 0 to 5 V | ||
| 05 | DC 0 to 10 V | ||
| 09 | DC 1 to 5 V | ||
| 23 | DC 0 to 1 mA | 100 Ω | DC ± 50 mA |
| 29 | DC 4 to 20 mA | 12.4 Ω | DC ± 150 mA |
| 29R | DC 4 to 20 mA | 250 Ω | DC ± 40 mA |
② Power supply
| Code | Power source voltage |
|---|---|
| A | AC 100 V to 240 V |
| 9 | DC 24 V |
| C | DC 110 V |
③ Sensor power supply
| Code | Output specification |
|---|---|
| X | None |
| 3 | DC 12 V ± 5 % 150 mA |
| 5 | DC 24 V ± 5 % 50 mA |
④ Comparative output
| Code | Output |
|---|---|
| X | None |
| 2 | With comparative output |
⑤ Analog output
| Code | description |
|---|---|
| X | No output |
| 04 | DC 0 to 5 V/more than 1 kΩ |
| 05 | DC 0 to 10 V/more than 1 kΩ |
| 09 | DC 1 to 5 V/more than 1 kΩ |
| 29 | DC 4 to 20 mA/less than 510 Ω |
⑥ Digital output
| Code | Optional Output |
|---|---|
| X | No output |
| DN | BCD (Open collector/NPN) |
| E0 | RS-232C |
| E1 | RS-485 |
General Specifications
| Input signal | DC 0 to 10 mV, 0 to 100 mV, 0 to 1 V, 0 to 5 V, 0 to 10 V, 1 to 5 V, 0 to 1 mA, 4 to 20 mA |
|---|---|
| Instantaneous value | |
| Display of instantaneous value | Display 1 or 2: 0 to 20000 Decimal point can be set in setting mode. With zero suppress, Over display functions |
| Scaling | 20 to 20000 |
| Resolution | 1/20000 |
| Display cycle | 100 ms, 1 s or 5 s |
| Accuracy | ± (0.2 % of SPAN + 1 digit) at 23 ℃ ± 5 ℃ 45 to 75 %RH |
| Temperature coefficient | ± 200 ppm/°C |
| Totalized value | |
| Display of totalized value | Display 1: 0 to 999999 (lower 6 digits) with Over display Display 2: 0 to 99999999 With zero suppress, Decimal point can be set in setting mode. |
| Totalizing factor | 20 to 99999 Totalized value for 1 hour with 100 % input. |
| Initial value of totalization | 0 to 999999 |
| Accuracy | ± (0.2 % + 1 digit) of rated value Rated value: Theoretical value is the one totalized with continuous 100 % input. |
| Display cycle | 100 ms (fixed) |
| Display | Display 1: Red or Green LCD Character height: 15.2 mm Display 2: White LCD Character height: 7.6 mm With no display function |
| Cut-off | 0 to 10 % Rated input x Cut-off |
| Synchronized totalized pulse output (P.O.) | As totalized value is counted up、the pulse output is obtained. Output signal: Open collector output (NPN) DC 30 V 200 mA Pulse width: 100 ms, 50 ms, 10 ms |
| Pause/Latch | [Pause] Display of instantaneous and totalized values, data output are retained. Count of totalizing is stopped. [Latch] Display of instantaneous and totalized values and data output are retained. Count of totalization and P.O output are continued. |
| Reset | Reset of totalization |
| Power failure compensation | Measurement data is held in nonvolatile memory. Data is retained for approx. 10 years. No counting during electricity failure. |
| Supply voltage | AC 100 to 240 V, DC 24V or DC 110 V |
| Voltage tolerance of power supply | AC 90 to 250 V, DC 24 V ± 10 %, DC 100 to 170 V |
| Power consumption | AC 100 V: Approx. 11 VA, AC 220 V: Approx. 15 VA DC 24 V: Approx. 250 mA, DC 110 V: Approx. 50 mA |
| Operating ambient environment | 0 to 50 ℃ |
| Storage temperature | -20 to 65 ℃ |
| Outer dimension | 90 (W) x 48 (H) x 133.3 (D) mm |
| Weight | Approx. 300 g |
| Protection | Front operation unit: IP65 Rear case: IP20 Terminals: IP00 |
| Installation | Using special bracket |
