Prime Controls

Prime Controls manufactures Double Sheet and Blank Detectors for the metal industry.

back to Prime Controls


Dual Probe Double Metal Detectors for Non-Ferrous Metals

Used to Detect Double Printed Circuit boards, Double Stainless Steel, Blister Pack Verification

The Model DS3410 Thin Metal Thickness Detector is easy to operate. There are relay outputs for Over, Under, Normal thickness and Nothing present. Up to eight separate thickness values are stored and recalled later through a remotely located selector switch module. It measures nonferrous metals under .025 mm (.001") thickness.

Calibration is simple. Place a metal sheet between the probe assembly and push the Calibration button. That's all. It calculates the double thickness and sets the reject threshold. The detector sets it’s reject threshold to 50% between the first and calculated second thickness. As a double metal detector the Model DS3410 discriminates single, double, and no-metal conditions.


Ideal for monitoring up to ten blister packages in a closed carton

Two value Calibration permits higher gauging precision. This option is selectable via a DIP switch located under the front cover. Rather than having the DS3410 calculate the double reject value, the user teaches the detector the nominal value and then a reject value. This permits the user to control the range of the monitored thickness. Through this feature the range is narrowed (< Double) or expanded (> Double).

The DS3410 features has adjustable reject thresholds. The adjustment ranges from 1 to 99%. Adjust the reject thresholds by holding the Calibration button for three seconds until a sub menu is displayed. The display prompts either OT (over thickness) or UT (under thickness). The value is changed after letting up on the button when one of these appropriate fields are displayed. Further pressing of the button advances the values. Once at 99 the display will roll-over to 01. The detector returns to the run display after the button is inactive for six seconds.

An Enabled Timer feature is used to limit the inspected region on a printed circuit board or other thin metal. For example, an application with a post-etched circuit board uses this feature to look for a specific area or region as each board travels through the inspection probes on a conveyor. The timer window is adjustable for .01 to .99 seconds.

The Timer is Enabled when a contact closes across a set of input terminals (labeled ENABLE). The Timer remains on for the adjusted period. A switch, proximity or similar device is used as the Enable trigger. For example, a ultrasonic or photoelectric sensor is located to detect the lead edge of the circuit board when a specific area is positioned between the thickness measuring probes.

Nonvolatile memory stores all settings if power is lost. Its a great value.

Dual Probe Double Metal Detectors for Non-Ferrous Metals


  • Ultra-sensitive to very thin nonferrous metals. For example 1/4 ounce copper, less than 1 mil aluminum and nonmagnetic stainless steel.

  • Trigger enable for a snapshot inspection of a specific region of the metal target.

  • Reject thresholds are adjustable in 1% increments.

  • Adjustable output delayed on time.

  • Store up to eight thickness values.

  • Single sample calibration reduces setup time and optimize settings.

  • Standby calibrate allows the user or PLC to invoke the Calibration routine without metal present. It calibrates when metal is detected

  • Adjustable calibration delay time allows metal to fully cover inspection probes before automatically calibrating

  • Self diagnostic messages quickly isolate system problems, errors and failures

  • Automatic sensitivity settings provide simple, quick and accurate startup

  • Operating Power 90 - 240 Volts AC @ 50-60 Hz.

  • Compact Size, (210 mm x 170 mm x 50 mm) to fit in tight spaces

  • Quick connect terminals for fast replacement and to reduce downtime

  • Four outputs for Over, Under, Nominal and Nothing

  • Latched or momentary output option

  • It's a great Value


  • Power Input: 100 to 240 VAC, 50/60 Hz 300 mA operating load
  • Output: 2 SPDT contact relays Max load: 10 Amps @ 240 V AC 8 Amps @ 24 V DC ½ HP @ 240 V AC
  • Output Fail-safe: Defaults to reject w/power off
  • Output Response: adjustable to < .030, .100, .500, 1 second
  • Thickness Range: .5 to 2 ounce copper plate, nonmagnetic stainless steel. (for magnetic SS see our latest DS1500 Family)
  • Probes: All probes beginning with P1C, P1CS, type "AX"
  • Probe Separation: 12 mm to 75 mm (.5 to 3”) or more. Max. varies w/(metal, thickness & probe, separation). Maximum range is realized with Model P1CS transmitter & receiver probes.
  • Calibration Methods: Push-button switch used to measure thickness between probes during calibration. Manually place sample between probes, push Calibration button.
  • Enable Input: enables inspection timer.
  • Over and Under Reject Threshold: factory set at 50% between nominal and calculated double. Reject threshold may be changed by user over a range of 1 to 99%
  • LED Indicators: Green for single, Amber for Over, Under & Nothing detected.
  • Display Indication: 2 digit LED, alphanumeric, .5 inch high. Setup menu, calibration mode, operating probe signal strength, fault codes
  • Sensor Operation: Eddy Current in metal impedes signal from transmitter to receiver. Impedance changes as metal thickness changes.

Manufacturing Solutions, Inc. - Corporate Ofice
P.O. Box 427
Lawrenceburg, TN  38464
Office:  (931) 762-8773
Fax:  (931)766-0083

email to