TSURUGA MODEL 471B

Integrating Digital Panel meter (Pulse Input)

• ■ 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

• 471B	-	□	-	□	-	□	-	□	-	□
  		①		②		③		④		⑤

  ① Power supply

  Code	Power Supply Voltage
  A	AC 100 to 240 V
  9	DC 24 V
  C	DC 110 V

  ② Sensor power supply

  Code	Output specification
  X	None
  3	DC 12 V ± 5 % 150 mA
  5	DC 24 V ± 5 % 50 mA

  ③ Comparative output

  Code	Output
  X	None
  2	With comparative output

  ④ Analog output

  Code	description	Allowable load resistance
  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

  ⑤ Digital output

  Code	Optional Output
  X	No output
  DN	BCD (Open collector/NPN)
  E0	RS-232C
  E1	RS-485

  General Specifications

  Measurement input	Non-voltage contact, Open collector (NPN /PNP) Voltage pulse, DC 2 wire-system
  Instantaneous value
  Display of instantaneous value	Display 1 or 2: 0 to 999999 Decimal point can be set in setting mode. With zero suppress, Over display functions
  Display cycle	100 ms, 1 s or 5 s
  Pulse conversion	1 x 10-6 to 1000
  Unit of time	hr, min, sec
  Display accuracy	± (0.05 % + 1 digit) at 23 ℃ ± 5 ℃  45 to 75 %RH
  Temperature coefficient	± 200 ppm/℃
  Totalized value
  Display of totalized value	Display 1: 0 to 999999 (lower 6 digits) with Over display Display 2: 0 to 99999999 100 ms
  Pulse coefficient	1 x 10-9 to 9999
  Initial value of totalization	0 to 999999
  Display cycle	100 ms
  Input frequency	HF range: 0.01 Hz to 1 kHz   Pulse width 50 μs MF range: 0.01 Hz to 100 Hz  Pulse width 5 ms LF range: 0.01 Hz to 20 Hz   Pulse  width 25 ms
  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 time	0.1 to 199.9 s
  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, 5 ms, 50 μs
  Pause/Latch	[Pause] Display of instantaneous and totalized values, data output are retained. Count of totalizing is stopped. [Latch] Display and data output of instantaneous and totalized values, and 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. Date is retained for approx. 10 years. No counting during electricity failure.
  Supply voltage	AC 100 to 240 V, DC 24 V 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