Pump Stroke Counter
User’s Manual – 2100, Rev D | Aug 2014
7
2.B Power Pack
The unit has an internal Power Pack with a 3.6 VDC source.
2.C Pump Stroke Sensors
The signal generated by the sensors is a simple contact closure. As the pump cycles across the
magnet or the contact switch, the contact closure is sensed by the Control Head allowing both
total strokes and strokes per minute to be displayed. The HDI 2100 Pump Stroke Counters are
capable of detecting and monitoring a minimum stroke per minute (SPM) rate of 11 SPM and a
maximum of 300 SPM.
There are two different sensor configurations show below. Further detail is found in Section 7.
2.C.1 Microswitch Sensor
The Microswitch is a standard limit switch
with a contact lever box, wand, and a 5” C
Clamp. The contact lever box comes with a
½” NPT gland entry.
2.C.2 Proximity Sensor
The Proximity Sensor is comprised of a
magnet assembly, an all thread pick up sensor
stem, and a mounting bracket.
2.D Certification
The HDI 2100 Pump Stroke Counter is certified by CSA as Intrinsically Safe for Class I Div 1
Groups A – D and ATEX Certification is available upon request.
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