General Instrumentation

Question 1

What is the definition of PROCESS instrumentation?

Answer 1

Process instruments are those permanently installed in the plant

Question 2

What is the definition of TEST instrumentation?

Answer 2

Test instruments are those installed during testing

Question 3

What is the definition of CONTROLLED instrumentation?

Answer 3

Controlled instrumentation is used to determine the operability of safety related or control designated systems or components

Question 4

How is CONTROLLED instrumentation identified?

Answer 4

Controlled instrumentation is identified by a control number and/or barcode

Question 5

What is the definition of UNCONTROLLED instrumentation?

Answer 5

Uncontrolled instrumentation is used for information only purposes

Question 6

How are UNCONTROLLED instruments identified?

Answer 6

Green stickers show calibration data in black

Question 7

When can UNCONTROLLED instrumentation be used in safety related tests?

Answer 7

Uncontrolled instruments may be used for safety related tests when the procedure doesn’t ask for calibration data

Question 8

What is the definition of RESTRICTED instrumentation?

Answer 8

Restricted instrumentation is test instrumentation calibrated to a different range than its originally intended use.

Question 9

How is RESTRICTED instrumentation identified?

Answer 9

Restricted instrumentation identified with Yellow restricted stickers with calibration date and restricted range
If info will not fit on the sticker, then I&E keeps a data sheet

Question 10

What is the definition of REJECTED instrumentation?

Answer 10

Rejected instrumentation is test instrumentation that is out of its normal calibration interval, cannot meet manufacturer’s calibration specs, or is suspected to be damaged or out of tolerance.

Question 11

How is REJECTED instrumentation identified?

Answer 11

Rejected instrumentation is identified by Red and White sticker, with the reason why the instrument is rejected

Question 12

How/where is instrument status identified?

Answer 12

1. Identified by a sticker

2. Tool Management System

Question 13

Where is contaminated test equipment stored?

Answer 13

The Hot Tool Room

Question 14

Where is clean test equipment in the RCA stored?

Answer 14

Clean test equipment in the RCA is also stored in the Hot Tool Room but should be used only for clean applications

Question 15

What is the person using a piece of test equipment required to ensure?

Answer 15

1. Calibration within date
2. Battery has sufficient charge
3. No operational concerns

Question 16

Who checks test equipment out?

Answer 16

1. Site Services during daylight hours

2. Nights or weekends requires the individual to check it out

Question 17

What is required if test equipment is used without checking it out?

Answer 17

A NCR must be written to document this occurrence

Question 18

What are the responsibilities for an individual checking out test equipment?

Answer 18

1. Have a valid need for the equipment
2. Must understand the limitations and restrictions associated with the equipment
3. Have the knowledge and training to use the equipment safely and for its intended purpose

Question 19

What shall the individual know when selecting test equipment and plant tools?

Answer 19

1. The expected values of the parameters being monitored to pick an instrument with the right range
2. The type of fluid being tested and what the test instrument is and is not designated for
3. Ensure fittings and tubing being used is of sufficient design for the expected temperature and pressure
4. The PT being performed will specify an instrument type and range or equivalent considering range and accuracy requirements for safety related or control designated components

Question 20

How is the appropriate test equipment chosen in regards to instrument range?

Answer 20

1. The instrument range should not exceed three times the nominal expected test value
2. Ideally, the expected test value should fall within 1/2 to 2/3 of the instrument range

Question 21

When are snubbers used with test equipment?

Answer 21

A snubber is required if the measured pressure fluctuates exceedingly

Question 22

What guidelines are adhered to when routing cables for test equipment?

Answer 22

1. Must no create a trip hazard
   A. Route in the overhead
   B. Use housekeeping tag to prevent trip hazard
   C. Tape down the cable
2. If running a cable through a fire door, the door must be impaired first
3. Ensure cable is secured well at destination location

Question 23

Who must be notified when removing, and returning, instruments to service?

Answer 23

The Control Room Supervisor if indication will be affected

Question 24

What are some basic steps for test equipment setup?

Answer 24

1. If large fluctuations are expected a snubber can be used
2. Zero equipment
3. Ensure power supply is adequate
4. Check cables for continuity
5. If a bad cable is found replace it
6. If indication is stuck the replace it
7. If indication is near the bottom of scale, and this is the expected indication, install a new piece of equipment with a smaller range