Digital Pulse / Transmitters
 
Digital transmitters produce signals that exist only in one of two states: ON or OFF. These states may also be referred to as HIGH or LOW, or 1 or 0 (zero).

Model VR7697 (Models 35, 43 & 45)

This economical and versatile bi-directional digital pulse transmitter provides 10 pulses per revolution with excitation power of 115-250 VAC or 12-36 VDC, making it compatible with most remote read-out equipment. Used with 600 Series Register.

Model VR7671 (HR) (Models 35 HR, 43 HR, & 45 HR)

This solid state Hall Effect digital pulse transmitter provides 100 pulses per revolution. Note that input (excitation) power is limited to 10-15 VDC.

Model PE 500

This Solid State Optical transmitter provides 100 pulses per revolution to a frequency of 2000 Hz. These units are bi-directional, and are CURRENT SOURCING. Current Sourcing means a sensor supplies the voltage to the count input. Sourcing sensors are PNP transistor outputs or a contact closure to V+.

Model PE 505

The Model 505 is the same as Model 500, with the exception that it is CURRENT SINKING and is compatible with TTL circuits. Current Sinking means a sensor provides a path to DC common for the count input. Sinking sensors are NPN transistor outputs or a contact closure to DC common.

Model PES 550

The Model 550 is the same as the 500 with the addition of an internal pulse-scaling module with a selectable scale range (multiplier) of 0.0001 to 1.9999. The output pulse may be adjusted to correct for flowmeter wear, compensate for a nonstandard liquid viscosity, or to convert from one engineering unit to another. The Model 550 is current sourcing.

Model PES 555

This model is the same as Model 550 with the exception that it is Current Sinking