TSURUGA MODEL 451F

Digital Panel Meter

• ■ Highly visible large LED Display
• ■ Grouped commonly-used parameters
• ■ Scaling, Average processing function, and Peak & Bottom hold function
• ■ Water- and dust-proof IP65 front panel
•  
• Model Designation

• 451F	-	□	-	□	-	□
  		①		②		③

  ①Measuring input

  Code	Measuring range	Input impedance	Accuracy	Over load
  22A	99.99 mVrms	100 kΩ	±(0.2% of rdg + 10digits)	AC 10 V
  23A	999.9 mVrms	100 kΩ		AC 100 V
  24A	9.999 Vrms	1 MΩ		AC 400 V
  25A	99.99 Vrms	1.9 MΩ
  26A	699.9 Vrms	1.9 MΩ	±(0.3% of rdg + 10digits)	AC 700 V
  32	99.99 μArms	1 kΩ		AC 20 mA
  33	999.9 μArms	100 Ω		AC 50 mA
  34	9.999 mArms	10 Ω		AC 150 mA
  35	99.99 mArms	1 Ω		AC 500 mA
  36	999.9 mArms	0.1 Ω	±(0.5% of rdg + 10digits)	AC 2 A
  	5.000 Arms	0.01 Ω		AC 10 A

  ②Power supply voltage

  Code	Power source voltage
  A	AC 100 to 240 V
  B	DC 12 to 24 V
  C	DC 110 V

  ③Data output 1

  Code	Data Output	Output impedance	Tolerable Load resistor
  Blank	-
  09	Analog output DC 0 to 10 V (Available scaling, Default: 1 to 5 V)	Less than 0.1 Ω	More than 500 Ω (DC 1 to 5 V) More than 1 kΩ (DC 0 to 10 V)
  29	Analog output DC 0 to 20 mA (Available scaling, Default: 4 to 20 mA)	More than 5 MΩ	0 to 600 Ω (DC 4 to 20 mA)
  BP	BCD output (TTL level positive logic)	-
  BN	BCD output (TTL level negative logic)	-
  DP	BCD output (transistor output, source type)	-
  DN	BCD output (transistor output, sink type)	-
  E0	RS-232C	-
  E1	RS-485	-
  EC	Decimal point external control	-

  ④Data output 2 (Available- 09 and -29 of ④ Data output 1 only)

  Code	Data output
  Blank	No output
  E0	RS-232C
  E1	RS-485
  EC	Decimal point external control

  Basic Specifications

  Display	0 to 99999, red or green LED (character height 15.2 mm), with zero-suppress function.
  Scaling offset	0 to +9999
  Scaling full scale	0 to +9999
  Display cycle	Selectable from 500ms, 1s, 2s, 4s, 5s
  Resolution	1/10000
  Sampling rate	Approx. 2 times / s.
  Response	within 2 samplings or 1 display cycle, whichever longer
  Input method	Single ended, floating input
  A/D conversion	⊿-∑conversion method
  Noise Rejection	Noise through power supply line - 1000 V (at AC voltage power supply)
  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. Input terminals - Output terminals: AC 500 V each for 1min.
  Power Supply	AC 100 to 240V (90 to 250 V) 50/60 Hz, DC 12 to 24 V (9 to 32 V)
  Power Consumption	Approx. 9 VA at 100 V AC, 11.5 VA at 200 V AC, 400 mA at 12 V. 200 mA at 24 V DC.
  Operating Temperature	0 to 50°C
  Storage Temperature	-20 to 70°C
  Weight	Approx. 300 g (60 g of the power supply unit)
  Housing protection	IP65 for the front panel, IP20 for the rear case, IP00 for terminals