TSURUGA MODEL 481C

Receiver

• ■ Full scale display: ＋200 to 1999 (optional setting)
• ■ Offset display variable function: (-1000 to ＋1000)
• ■ Input selection function: 4 to 20 mA or 1 to 5 V
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• Model Designation

• 481C

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  ①

  ②

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  ⑤

  ⑥

  ①Measuring Input

  Code	Measuring Range	Input Resistance	Accuracy *	Overload
  09	1 to 5 V	1 MΩ	±(0.1% of rdg + 2 digit)	DC ±250 V
  19	4 to 20 mA	12.5 Ω	±(0.1% of rdg + 2 digit)	DC ±150 mA

       *Accuracy:

  Defined at 23 ± 5°C, 45 to 75% RH.

        Temperature coefficient:

  Defined at ±200 ppm/°C (Temp. range: 0 to 50°C)

        Internal range setting:

  The range 09, 19 can be changed by pin headers.

  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 (no output)
  BP	TTL level (positive logic）
  BN	TTL level (negative logic）
  DN	transistor (sink type）

  ④Decimal Point

  Code	Description
  Blank	Front setting
  1	External control

       ⑤Sampling Rate

  Code	Description
  Blank	2.5 times/s fixed.
  T	Green LED

  ⑥Display Color

  Code	Description
  Blank	Red LED
  G	Green LED

  General Specifications

  Display	0 to 1999 red or green LED (character height 14.2 mm) with zero-suppress function.
  Scaling function	Full scale display +200 to +1999, Offset display -1000 to +1000.
  Decimal point	Optional (front setting or external control)
  Over-range display	Flashing with “0”.
  Hold function	Holds measured data (without isolation).
  Resolution	1/2000
  Sampling rate	2.5 times/s fixed or 2.5 to 0.2 times/s variable.
  Input selection	Measuring input 1 to 5 V or 4 to 20 mA can be internally altered.
  Input type	Single ended, floating input.
  A/D conversion	Dual Slope Integration System
  Noise rejection	Normal mode （NMR） More than 50 dB Common mode（CMR） More than 110 dB Power source line mixing noise   1000 V
  Withstand voltage	Between input terminal and external case AC 1500 V for 1min. Between power terminal and external case AC 1500 V for 1min. Between power terminal and input terminal   AC 1500 V for 1min.
  Insulation resistance	DC 500 V More than 100 MΩ
  Power supply	AC 100 V （90 to 132 V） AC 200 V （180 to 250 V） DC 24 V （24 V ± 10%）
  Power consumption	AC power source…Approx. 3 VA DC power source…Approx. 60 mA
  Operating temperature	0 to 50°C
  Storage temperature	-20 to 70°C
  Weight	AC power source…Approx. 300 g DC power source…Approx. 200 g
  External dimensions	96(W)×48(H)×89.5(D) mm