Need reliable equipment monitoring? The Phares Model ZS09R Zero Speed Switch Sensor ensures precision and productivity in your operations. This innovative all-in-one shaft speed monitoring device combines both sensor and relay functionality, no separate control box required. Capable of switching 250 VAC, 1 Amp. Use with logic circuits – PLC, VFD, DCS, or an “ice cube” relay, or low power control circuits. Act now! Equip your system with the ZS09R Zero Speed Sensor for reliability and peace of mind.
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| Part Number | Input Voltage | Contacts (1 Amp) | Target |
| ZS09R1-120F | 120 VAC | N.O./N.C. | Ferrous |
| ZS09R2-120F | 120 VAC | N.O. | Ferrous |
| ZS09R3-120F | 120 VAC | N.C. | Ferrous |
| ZS09R1-120M | 120 VAC | N.O./N.C. | Magnetic |
| ZS09R2-120M | 120 VAC | N.O. | Magnetic |
| ZS09R3-120M | 120 VAC | N.C. | Magnetic |
| Part Number | Input Voltage | Contacts (1 Amp) | Target |
| ZS09R1-DF | 5-24 VDC | N.O./N.C. | Ferrous |
| ZS09R2-DF | 5-24 VDC | N.O. | Ferrous |
| ZS09R3-DF | 5-24 VDC | N.C. | Ferrous |
| ZS09R1-DM | 5-24 VDC | N.O./N.C. | Magnetic |
| ZS09R2-DM | 5-24 VDC | N.O. | Magnetic |
| ZS09R3-DM | 5-24 VDC | N.C. | Magnetic |
The Phares ZS09R Zero Speed Switch Sensor is a self-contained speed monitoring device designed for industrial equipment and conveyors. It combines a sensor and relay in one unit to detect overspeed, underspeed, or zero speed conditions. Ideal for manufacturing environments, the ZS09R helps protect machinery by triggering alerts or shutdowns when equipment slows or stops unexpectedly. With an adjustable set point, it offers precise and reliable speed detection to keep operations running efficiently.
The ZS09R Zero Speed Switch Sensor resembles a proximity switch but features advanced speed sensing technology not found in basic on/off sensors. Designed for industrial machinery, it continuously monitors shaft rotation. When the machine speed reaches the adjustable set point, the built-in relay changes state. It stays in this state until the system detects an underspeed or zero speed condition, making it ideal for conveyor and equipment monitoring in manufacturing plants.
The ZS09R Zero Speed Switch Sensor is ideal for monitoring shaft speed and sending logic-level signals to PLCs, VFDs, DCS systems, and other control equipment in industrial applications. For higher amperage switching, consider the ZS09P model. The ZS09R detects both magnetic and high iron content targets such as gear teeth, bolt heads, or key stock, making it a reliable solution for conveyor systems and rotating machinery in manufacturing plants.
The ZS09R Zero Speed Switch Sensor features isolated outputs, allowing for easy integration into both new and existing control systems. It’s also suitable to replace many outdated or lower-quality speed sensors in industrial applications.
Install the ZS09R Zero Speed Switch Sensor at the load pulley on equipment such as augers, bucket elevators, conveyors, exhaust fans, turbines, and other rotating machinery. It’s useful for accurate shaft speed monitoring in industrial and manufacturing applications.
| Operating Voltages | 5-24 VDC or 120 VAC |
|---|---|
| Operating Temperature | -40°F to 140°F |
| Operating Frequency | Hall Effect and Inductive (Gear Tooth): 0.02Hz-10kHz Hall Effect Only: 0.02Hz – 25kHz |
| Relay Contact Ratings | 250 VAC, 220 VDC Maximum, 1 Amp Vibration resistance: Shock resistance: |
| Relay Set-Point Adjustment Range | Standard: 1-100 RPM, 1 Pulse Per Revolution Custom parameters are available. |
| Housing Material | Aluminum |
| Fuse | Internal 1/2 Amp non-replaceable fuse |
| Cable | 4 ft., 6 Conductor, 22 AWG, Unshielded |
| Sensing Distance to Target (Gap) | 1/16″ to 5/16″ using Ferrous Target (Gear Tooth Wheel, Bolt Head, Key Stock, etc.) 1/2″ to 5/8″ using Phares Magnetic Disk 1″ using Phares Magnet, Part No. SM-100 |
| Minimum Gear Tooth Target Sizes | 1/8″ gear tooth length, width, depth and gap. |
| Gear Tooth Target Material | High ferrous (iron) content. |
Installation is simple:
Adjust the relay setpoint to match your application requirements using the trim pot on the sensor.
LED indicators show sensor and relay status at a glance.
For ferrous targets, a minimum of 1/16″ (6 mm) to approximately 5/16″ (7.94 mm).
When using a Phares Sensors & Automation magnet or magnetic disk, the recommended sensing distance ranges from approximately 1/4 inch (6.35 mm) to 1 inch (25.4 mm), depending on the specific magnetic target selected.
Sensor and relay combined in a single unit. Switches 5 Amps.
Rugged cast aluminum enclosure with gasketed cover for harsh outdoor enviroments
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