SEKURE SX-3100LCD Operator's Manual download pdf (Page 374)

362 GAS ANALYZER

B. QUESTIONS MOST FREQUENTLY

ASKED

1. How often should the Gas Analyzer sampling and drain

filters be replaced?

For the sampling filter, two to four weeks, based on usage. If, after zeroing and while

sampling fresh air, the NOx value is greater than 20 ppm, check for excessive residue on

the inside of the filter; it may need to be replaced. The drain filter should be replaced every

two to three months, based on usage.

2. How often should the Gas Analyzer be calibrated?

Every three weeks, based on basic usage (repair grade).

3. How often should the Gas Analyzer be zeroed?

Before every run, and when prompted by an on-screen message.

4. What is the life expectancy of the O2 and NOx sensors?

One year for the O2 sensor and two years for the NOx sensor, based on usage.

5. What is the difference between the gas used to calibrate the

Gas Analyzer and the state certification's inspection gas?

Some states may use a hexane blend of inspection gas for certification instead of the

propane gas used for calibration. Even though the state may check your analyzer with

hexane gas, this gas should not be used for calibration.

6. What gas do I use to calibrate the Gas Analyzer?

For Single-point Calibration, use Mid-Bar90 with NOx (Quad Blend).

7. What should I do when a problem occurs with the Gas

Analyzer?

First, refer to the troubleshooting guide in the PXA-1000 Operator's Manual to assist you

in locating and correcting the problem. If the problem cannot be corrected, refer to the

Introduction section on Warranty and Repair information.

8. Can I use the PXA-1000 to read diesel exhaust emissions?

No. The analyzer was designed for spark ignition engines that use gasoline for fuel.

9. Do I need to send in my Gas Analyzer to have the O2 and

NOx sensors replaced?

No. The PXA-1000 was designed to allow you to easily replace serviceable items such as

filters, O2 sensors, and NOx sensors in order to eliminate having to pay shipping fees and

wait for simple Gas Analyzer maintenance. Step-by-step on-screen instructions were

designed to walk you through these service procedures, including O2 and NOx sensor

replacement.

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SEKURE SX-3100LCD Operator's Manual Page 374