PQI 301

We will continue to support the PQI 301 for a limited time to help our customers plan for the future and transition to our current-generation technology. This page will remain available as a reference for existing PQI 301 users who need access to legacy manuals, documentation, and library information. For information about our current-generation PQI Non-Nuclear Asphalt Density Gauge, the PQI 380+, please contact our sales department or call 1-800-724-6306 or 518-370-5558.

• Q: How long will the PQI 301 last on a full charge?
• A: 8-12 hours, depending on usage.
• Q: How long does it take to recharge the PQI 301?
• A: 4 hours.
• Q: Will the PQI 301 charge if the unit is plugged in, but is left “ON”?
• A: After 10 minutes of not using the gauge, it will go into a sleep mode; after another 10 minutes it will turn off.
• Q: Will the PQI 301 retain currently displayed information when it goes into battery saver mode?
• A: Yes.
• Q: Is it necessary to calibrate the PQI 301 against a known source, such as the test block? If so, how often should calibration be done?
• A: We recommend once a year for calibration, however, it is useful to use the test block frequently to ensure the gauge is working properly in the field.
• Q: Is the PQI 301 case waterproof?
• A: No.
• Q: Can the PQI 301 be used to measure core samples from a job site?
• A: No.
• Q: How do I get customer support for the PQI 301?
• A: Call toll-free 1-800-724-6306 or 518-370-5558 (8:00 am – 5:00 pm EST - Monday – Friday) or Email Us
• Q: How often should the PQI 301 be sent back to the manufacturer for check up?
• A: It is recommended annually.
• Q: What type of cleaning agents, if any, should be used to clean the sensor area of the PQI 301? How often?
• A: WD-40 is a good cleaning agent. It is very important to spray the WD-40 on a rag and use on the sensor. DO NOT spray WD-40 directly on the sensor. Use when there is significant asphalt build up on the sensor. Be sure to clean the sensor after each days use.
• Q: In the manual, what is meant by “excessive moisture”. What is considered “excessive moisture”?
• A: Any H2O value over 10.
• Q: Does TransTech provide training for the PQI 301?
• A: We welcome individuals to come to the TransTech Systems facility in NY, free of charge, for training. Please call toll-free 1-800-724-6306 to arrange dates and for any additional training information.
• Q: Is the PQI 301 available in languages other than English?
• A: Yes, we can also program the interface for Spanish, Dutch, German or Italian.
• Q: What type of warranty is available with a new PQI 301?
• A: We offer a 1 year warranty on parts and labor for issues related to materials and workmanship on all new PQI 301's.