Category Specification
Input Power 12-24 VDC ± 10%
Output Signal Open Collector—Digital Signal
Wiring Red = + Power Supply Voltage
Green = Pulse, Switching to Ground
Black = Ground (- Power Supply Voltage)
Contact Closure Duration
30ms Minimum (at 16Hz Output)
a
a. With lower frequencies, the duration is longer. The duty cycle is roughly 40-60% closed/60-40%
open. It depends on the frequency, and is not as important as the contact timing.
Contact Open Duration
30ms Minimum (at 16 Hz Output)
b
b. With lower frequencies, the duration is longer. The duty cycle is roughly 60-40% closed/40-60%
open. It depends on the frequency, and is not as important as the contact timing
Duty Cycle Approx. 50/50 ± 20% at normal flow rates
Pull-up Resistor (when
requir
ed)
6000 Ohms
Pulse Cable Length 25 ft. at meter
Pulse Cable Diameter 3.6 mm
Insulation Colors Red—12 to 24 VDC (Supply)
Green—Pulse, switching to GND
Black—GND
Maximum Cable Run -
Meter to Instrument
1000 ft. without a repeater
Lightning Protection Built-in lightning protection. Keep in mind that additional
lightning arrestors may be needed when long cables are used
to connect the register to devices which are not installed in the
same building as the register. The flash of lightning is not
compatible with the standards and can have greater energy
than any test can simulate.
Introduction 5
Specifications
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