TSURUGA MODEL 471A

Intergrating Digital Panel Meter (Analog Input)

• ■ 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
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• Model Designation

• 471A

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  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