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Digital Meter / Printer

Digital Integrating Flow rate Meter

MODEL 419B

  • ■ DIN 48x48 mm compact size
  • ■ Dual Display of flow rate and totalizer
  • ■ Pulse output for total and 2 x preset output
  • ■ Pulse input of 419B and analog input of 419A can be linked in series

Operation manual

Model Designation

419B - - - -

①Measuring input

Code Measuring range Input specifications
Blank Non-voltage output or open collector DC 12 V, 10 mA
RE Voltage pulse "H" = 4.5 to 30 V "L" = 0 to 2.0 V
Approx. 5 kΩ
MG Tachogenerator AC 0.8 to 80 Vp-p
SN Sine wave AC 0.1 to 20 Vp-p

②Power supply voltage

Code Power source voltage
A AC 100 to 240 V
8 DC 12 V ±10%
9 DC 24 V ±10%

③Power source for sensor

Code Output voltage Output current Ripple
Blank Not available
3 12 V ±5% 60 mA Less than 5%
5 24 V ±5% 30 mA Less than 5%

④Analog output, RS-485

Code Output specifications Output impedance Tolerable Load resistive
Blank -
03 DC 0 to 1 V Approx. 0.1 MΩ More than 200 Ω
04 DC 0 to 5 V More than 1 kΩ
05 DC 0 to 10 V More than 2 kΩ
09 DC 1 to 5 V More than 1 kΩ
29 DC 4 to 20 mA 5 MΩ 0 to 500 Ω
E1 RS-485 -

Basic Specifications

Flow rate measurement
Q = fUP where Q is the flow rate,
f is a frequency, U is the user-readable unit of flow (x1, x60, x3600), P is the pulse conversion value
Flow indication 0 to 9999: Red LED, Character 8 mm High, with zero-suppress function.
Decimal point: Programmable form the front key
Over-range display: Display blank: Changeover to be put on or off.
Display cycle Selectable from the front key. 100ms, 400ms, 1s, 2s, 5s
Moving averaging Selectable from the front key. 1, 2, 3, 4, 8, 16-time
Pulse conversion value Selectable from the front key, from 1x10-6 to 9999
Time base Selectable from the front key. Seconds, minutes, or hours
Accuracy ± (0.05%+1digit)
Flow totalize measurement
The meter displays calculation values which is multiplied numbers of input pulse by the K-factor.
Any point can be assigned to initial of total value and be programmed anywhere in the range of the meter.
Flow indication 0 to 99999: Green LED, Character 8mm High, with zero-suppress function.
5 or 10 significant digit: Programmable form the front key
Over-range display: Display blank: Changeover to be put on or off.
Pulse factor Programmable Pulse factor from the front panel. From 1x10-6 to 999,999 pulses/unit.
P.O output is synchronized to input pulse when exceeding 1.
Primary integrated value from 0 to 99999, programmable from the front key
Display cycle approx. 0.1s
SIG display Light-up when inputting the signal
Common Specifications
Input Frequency HF range: 0.01 Hz to 10 kHz
LF range: 0.01 Hz to 100 Hz Programmable from the front key.
Min. Pulse width HF range: 0.05ms / LF range: 5ms
Latch / Pause input Latch: Hold display of instantaneous and integrating flow rate, and data output
(except of Simultaneous pulse output). Accumulated integrated count will be operated.
Pause: Hold display of instantaneous and integrating flow rate, and data output.
Accumulated integrated count will be temporarily stopped.
Non-voltage contact or open collector (NPN) DC 5 V, 10 mA
Active "L", "L" = 0 to 1 V, "H" = 3.5 to 5 V, 10ms min. Pulse width.
Reset reset to 0 or primary setting value
Backup An EEPROM retains the data of accumulated total flow when the power is interrupted. Keep 10 years.
Output relay contact: AC/DC 150 V, 80 mA
Noise filter 1000 V against the power line noises
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 1500 V each for 1min.
Input terminals - Output terminals: AC 500 V each for 1min.
Insulation Resistance DC 500 V, More than 100 MΩ
Power Supply AC 100 to 240 V (50/60 Hz), DC 12 V ±10%, DC 24 V ±10%
Allowable power AC 90 to 250 V (50/60 Hz), DC 10.8 to 13.2 V, DC 21.6 to 26.4 V
Power Consumption Approx. 7.5 VA at AC 100 V, 10 VA at AC 200 V, 400 mA at DC 12 V, 250 mA at DC 24 V.
Operating Temperature 0 to 50°C
Storage Temperature -20 to 70°C
Weight Approx. 160 g

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