Non-contact application-specific sensors designed to check threadpresence/absence displacement sensing system
ZSY’s improved ZTC60 consists of a single electronics module compatible with any probe/material combination. Designed specifically for in-die use, it provides rugged, reliable verification of thread presence or absence in nearly any electrically conductive material. With ZSY’s proven eddy current technology at its core, threads can be checked regardless of part cleanliness, reducing the cost of implementation.
MAIN FEATURES
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Teaching ZTC60
1. With the probe in air, depress the teach pushbutton. The electronics will optimize settings for that particular probe.
2. Insert the probe into a threaded hole and depress the teach pushbutton. Insert the probe into an unthreaded hole and depress the teach pushbutton.
3. The electronics sets a window around the voltage value for the threaded hole for triggering the “thread” indicator.
Outputs/Indicators
The switched output is an opto-coupled NPN solidstate relay. It comes standard in window comparator mode, but can be set up in level comparator mode, and the polarity can also be changed.
The analog output is set so that there is always a 5VDC difference between a threaded and unthreaded hole.
A 3-color power LED and a thread LED are used to indicate a variety of conditions related to the presence/absence of threads, and the health of the sensor system itself.
Mainly used in ferromagnetic and non-ferromagnetic material thread detection.
| Parameter | Value |
| TEMPERATURE | |
| Operating range | 0° to 70°C (32° to 158°F) |
| Storage range | 0° to 70°C (32° to 158°F) |
| Compensation range | 15° to 55°C (59° to 131°F) |
| ANALOG OUTPUT | |
| Continuous load current | <50 ma |
| Short circuit/overload protection | Yes |
| INPUT | |
| Supply voltage required | 15 to 30 Vdc |
| Current limit (no load current input) | <50 ma |
| Reverse polarity protection | Yes |
| Short circuit protection | Yes |
| SWITCHED OUTPUT | |
| Type | Opto-isolated NPN |
| Switching speed | 3 KHz |
| Maximum voltage | 30 Vdc |
| Maximum current | 80 mA |
| RATINGS | |
| Sensors | IP-67 |
| Electronics | IP-67 |
| CE compliant | Yes |
| SENSOR CABLE | |
| Jacket material | Polyurethane |
| Length | 2 meters |
| INDICATORS | |
| Power on | Green LED |
| Thread presenceOff = unthreaded hole detected On = threaded hole detected* Blinking = Teach mode | Yellow LED |
The ZTC60 system is an eddy current system. The sensor coil is resonatedand the amount of impedance change in the output is measured by the electronics. Theproximity of the target to the sensor coil will cause the sensor coil to change impedance.The signal is then processed and filtered to obtain an analog voltage proportional tothe target position or displacement.
As an eddy current sensor, the system (probe plus electronics) detects the distance between the probe OD and the ID of the hole. In untapped holes, this indicates tap drill diameter. In tapped holes, this indicates pitch diameter of the threads.
The most popular implementation is to use the switched output wired to a PLC or other controller, programmed to alarm when no thread is detected. This alarm may stop the operation or may divert untapped parts from further processing. Alternatively, the analog voltage may be monitored. In this case, the user would program the PLC or other control device with whatever limits are suitable for the application.
Mainly used in ferromagnetic and non-ferromagnetic material thread detection.
Mainly used in ferromagnetic and non-ferromagnetic material thread detection.
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