Portable sensor checker NID-1200

NID-1200 IEPE Sensor Checker is a battery operated, easy to use instrument that is used to check sensor condition by measuring DC Bias voltage and to electronically simulate IEPE (ICP®) sensor output. Power is supplied from one internally mounted 9V Alkaline battery. There is also a LED indication of Low Battery status. Operating modes can be selected by slide switch mounted on the left side. There is also a visual identification of the selected mode by LEDs placed on the top panel. In the middle position of the switch, device is Off. In BOV TEST mode, user can read measured DC Bias Voltage on display and check the sensor status by LEDs on the top panel. There are three predefined sensor statuses which depends on the Bias Voltage: SHORT CIRCUIT, SENSOR OK and OPEN CIRCUIT. Short Circuit LED is lit if the measured bias voltage is below 7V. Open Circuit LED is lit if the measured bias voltage is more than 15V. Sensor Ok LED is lit if the measured bias voltage is between 7V and 15V. If the customer needs different voltage limits, changes can be done free of charge, before the shipment. In SIGNAL GENERATOR mode, instrument supplies fixed frequency sinusoidal signal (100.0 mV RMS, 160.0 Hz) to simulate IEPE (ICP®) sensor output.