ZS09P Zero Speed Switch Sensor

Overview

The Phares Model ZS09P Zero Speed Switch Sensor is a convenient all-in-one device which combines sensor and relay. No additional control box needed. Switches up to 5 amps.

It is an entire Zero Speed Switch System in one sensor. Just point the ZS09P at a bolt head or keystock on your machine, wire the relay contacts to your alarm or control circuit, and you’re good to go!

Use the ZS09P Zero Speed Switch Sensor in over speed, under speed, or zero speed monitoring applications. The ZS09P Zero Speed Switch has an adjustable set point for precise, accurate speed measurement. It protects your conveyor or other industrial machinery when it slows down, or stops unexpectedly, and reacts faster than pushing Emergency Stop.

The ZS09P Zero Speed Sensor looks like a prox switch, but incorporates intelligent speed sensing circuitry not found in simple on/off devices. When machine shaft speed reaches the set point, the ZS09P Zero Speed Sensor relay output changes state. It remains in this state until under speed or zero speed condition occurs.

Phares Zero Speed Switches have isolated relay contacts making it easy to incorporate into new or existing systems, or to replace obsolete zero speed switches.

Install at the load pulley on augers, bucket elevators, conveyors, exhaust fans, grinders, turbines and many other applications where shaft speed monitoring is needed.

Options

• Custom Cable Length
• Custom Relay Set-Point Adjustment Range
• Fixed Set-Point
• Relay Latch

ZS09P Zero Speed Switch Sensor

Specifications

View or Download PDF: ZS09P Spec Sheet

Power Requirements:
Part No. ZS09P-120: 120VAC, 20mA, 50/60Hz
Part No. ZS09P-D: 6-24VDC, 69mA

Relay Output: (specify when ordering)
SPDT Form ‘C’ dry relay contact (Normally Open/Closed)
SPST Normally Open
SPST Normally Closed

Contact ratings:
5A, 240VAC
5A, 30VDC
Vibration resistance (function) NO/NC contact >15/5g
Shock resistance (destruction) >100g

Operating Frequency:
Hall Effect and Inductive (Gear Tooth): 0.02Hz – 10kHz
Hall Effect Only: 0.02Hz – 25kHz

Sensing Distance (Gap) in Inches:
1/16″ to 1/8″ using Gear Tooth Wheel, Bolt Head, Key Stock, etc.
1/8″ to 1/4″ using a Phares High Density Magnetic Disk.
1/4″ to 1″ using a Phares Magnet or Magnetic Disk.
(Magnetic target sensing distance based on Phares Magnetic Disks and magnet types).

Minimum Gear Tooth Sizes:
1/8″ gear tooth length, width, depth and gap.

Gear Tooth Material:
High ferrous (iron) content.

Operating Temperature:
-40°F to 140°F

Weight:
6 oz.

Cable:
4 ft., 6 conductor, 22 AWG, unshielded
(Custom cable lengths available.)

Dimensions and Threads

Tech Documents

• ZS09P Spec Sheet
• Operations Manual