Veeder Root EMR4 Pulser Kit

Solid state pulse transmitters provide fast and accurate signaling for remote indication, totalizing and data-monitoring systems. Dependability and reliability are built in. The EMR4 remote pulser consists of a 5 Vdc optical encoder assembled into a stand-alone cast housing. The Remote Pulser can be mounted to either the top or the front of the meter using one of two available kits. The Remote Pulser is intended for use with a Remote Display only. The remote pulser operates under the same specifications as the existing internal pulse encoder.

Features

• UL listed, CSA certified (BASEEFA approved models are available)
• Solid state switching mechanism for reliability
• Easy directional sensing
• Flexible single or dual channel
• Optional one-way clutch

Specifications

• Supply Voltage (VCC): 10 to 15 VDC, 75 mA max at 15 VDC
• Output: Dependent on load
• Switching Times: Rise Time: 2 microseconds maximum with 10 mA resistive load to ground. Fall time: 4 microseconds maximum
• Rotation: Standard is bidirectional, customer specified. Optional models available with no-back feature
• Input Shaft Speed: 600 rpm maximum
• Torque: 2 oz-in. maximum (144 gm-cm)
• Output Pulse: Dual channel at 50 ppr, staggered or overlapping. Single channel at 100 ppr
• Duty Cycle: Overlapping/Quadrature: 50% +-10% high/low ratio. Second channel phase displaced by 90 degrees +-18 degrees
• Staggered: 75% +-5% high/low ration. Second channel displaced by 180 degrees +-18 degrees
• Single Channel: 50% +-10% high/low ratio
• Circuit Class: For National Electrical Code Class 2 circuits only
• Operating Environment: -40 degrees to 180 degrees F (-40 degrees to 82 degrees C)
• Storage Environment: -67 degrees to 257 degrees F (-55 degrees to 125 degrees C)
• Shaft: Specify length of either 0.956 or 1.672 inch (24.28 or 41.80 mm)
• Housing: Explosion-proof. For use in hazardous locations Class 1, Groups C&D
• Mounting: Three 1/4-20 UNC-2B blind tapped holes, spaced 120 degrees apart on a 2.5 in. (63.5 mm) diameter bolt circle
• Leads: 48 in. (120 cm) of four or five conductors, gas and oil resistant, #18 AWG wire

Contents

• Pulser
• Mounting plate
• 20 ft. comm cable