Petro Plus Training

ATG Field Cheat Sheet

TLS-450PLUS + TLS-350 • alarms, sensor locating, PLLD/line tests, and site mapping.

Triage Common Alarms Locate Sensors PLLD / Tests Site Mapping
Best practice: Screenshot first → verify physically → fix one thing at a time → recheck status → document clearly.
Workflow

60-Second Triage

Do this first

  1. Active vs. history (Is it happening now?)
  2. Identify object: Tank # / Line # / Sensor ID / Input
  3. Capture evidence: alarm screen + detail screen
  4. Classify: Containment/Sensor • Line/PLLD • Tank • System/Setup
  5. Go physical: verify in the field (don’t diagnose from the screen only)

Minimum documentation

  • Site + date/time
  • Tank/Line/Sensor ID (exact)
  • What you found (facts)
  • What you did (actions)
  • Final status (normal? still alarm?)
  • Before/after photos (screen + physical location)
Quick Reference

Common Alarms (Meaning + First Moves)

Keep your response consistent: confirm the device, go physical, document evidence, and recheck status.

Fuel Alarm

Meaning: Fuel/liquid detected in a space it’s not allowed (sump, dispenser pan, interstice, etc.).

  • Use sensor ID + location label + site map to go to the correct containment area.
  • Verify: active leak vs spill vs intrusion vs residual product.
  • Clean/contain per Petro Plus procedure and check likely entry points (fittings, boots, conduit, lids, seals).
  • Document: what was present, suspected cause, and what was corrected.
Safety: If you suspect an active leak, treat it as a hazard. Make safe, escalate, document.
Low Pressure Alarm

Meaning: Dispense pressure is below expected during dispensing (often line/hydraulics/power related).

  • Determine scope: one dispenser/position, one line, or multiple.
  • Check obvious causes: STP performance/power, filters, line restrictions, leaks, air, dispenser symptoms.
  • Pull PLLD/line diagnostics history for that line before repeating tests.
  • Document observed symptoms at the dispenser (slow flow, no flow, cycling, etc.).
Gross Line Fail (3.0) / Line Leak Shutdown

Meaning: Gross leak test category failure (3.0) or related shutdown condition for a line.

  • Pull PLLD diagnostics for the affected line (recent pass/fail timestamps).
  • Confirm the line and affected dispensers match the site map.
  • Verify physical conditions: obvious leaks, STP issues, dispenser symptoms.
  • Document clearly and follow company escalation if shutdown/critical.
0.2 / 0.1 Test Fail (Periodic / Annual)

Meaning: Precision line test category fail (0.2 periodic / 0.1 annual).

  • Pull 0.2/0.1 diagnostics history first; confirm which line is failing and when.
  • Consider traffic reality: precision tests need stable conditions; repeated interruptions create confusion.
  • Verify physically: leaks, seepage, check valves, fittings, dispenser symptoms.
  • Document: what the console reported + what you verified onsite.
Sensor Out Alarm

Meaning: Sensor not reporting correctly (disconnected, damaged, wiring issue, or setup mismatch).

  • Confirm the sensor exists at that location (site map) and is the correct type for that spot.
  • Inspect: wiring/conduit, water intrusion, physical damage, loose connections.
  • Document before touching anything; fix physical issues if safe/authorized.
Setup Data Warning

Meaning: Configuration/setup issue or mismatch (device/tank/line/sensor setup integrity).

  • Capture screenshots showing exactly what it references.
  • Verify console labels match the physical site map (wrong mapping causes bad troubleshooting).
  • Do not change programming unless authorized; document and escalate with evidence.
High Water Alarm (Tank Water)

Meaning: Water in the tank has exceeded the high-water limit setting.

  • Screenshot water/tank status screens and note tank number.
  • Verify the correct tank/probe association (mapping errors happen).
  • Follow Petro Plus tank water procedure (removal/containment/escalation) and document before/after.
Important: Treat tank water alarms as serious. Document clearly for the office and the customer.
Field Skill

Locate the Correct Sensor (Fast Method)

Console → Field (always)

  1. From the alarm, identify Sensor ID and any location label.
  2. Use the site map to walk directly to that sump/pan/spill bucket/interstice.
  3. Verify physically: liquid present, water intrusion, damage, sensor placement, float condition.
  4. Correct the issue per procedure; avoid “random changes.”
  5. Recheck sensor status/alarm on the console and capture the “after” screen.

Best practices

  • If the location label is wrong, note it and keep the call focused on the actual problem.
  • Take a wide photo (to prove location) and a close-up (to prove condition).
  • When recurring alarms happen at the same spot, treat it as a pattern and document the likely root cause.
Tip: A clean site map + consistent naming reduces bad troubleshooting more than any “advanced” console work.
Diagnostics

PLLD / Line Tests (3.0 / 0.2 / 0.1)

Field rule: pull diagnostics/history first, then decide if you should run tests or inspect hardware.

PLLD workflow (quick)
  1. Identify the line number referenced by the alarm.
  2. Check PLLD status/diagnostics for that line (recent pass/fail + timestamps).
  3. Confirm conditions (dispensing/traffic can interfere with clean test completion).
  4. Inspect physically based on the symptom (leak, restriction, power/STP, dispenser behavior).
  5. Document and recheck status after any change.
TLS-450PLUS (touchscreen) — where to look
  • Menu → Diagnostics → PLLD → 0.2 GPH TESTS
  • Menu → Diagnostics → PLLD → 3.0 GPH TESTS
Best practice: Screenshot the diagnostics page for the affected line (it’s the fastest way to explain what happened).
TLS-350 (keypad) — common diagnostic steps
  1. Press MODE for DIAG MODE
  2. FUNCTION to PRESSURE LINE LEAK DIAG
  3. STEP to the screen you need (0.2 / 0.1 / 3.0)
  4. Press PRINT (if available)
What each test means (one line each)
  • 3.0 = gross leak category (big problem / high risk)
  • 0.2 = periodic precision category
  • 0.1 = annual precision category
Best Practice

Site Mapping (Tanks, Lines, Sensors)

Goal: any tech can arrive and find the right tank/line/sensor without guessing.

What every site map must include
  • Tanks: Tank #, product, probe type, notes (water history, known issues)
  • Lines: Line # to dispenser group (rough mapping is fine at first)
  • Sensors: Sensor ID + physical location name (STP sump, dispenser pan, spill bucket, interstice)
  • Emergency stops: locations + what they affect
  • Photos: 1–2 wide shots + inside each sump/pan you service
Mapping method (field)
  1. Start with tank numbers and probe locations (confirm each physically where possible).
  2. List every sensor by console ID; walk and confirm each physical location.
  3. Name locations consistently (example: “Disp 3 Pan”, “STP Sump”, “Tank 2 Interstice”).
  4. Update the map immediately when equipment is moved/replaced.
Dispensing Issue

Slow Flow (Manual Leak Detector) — Field Troubleshooting

Slow flow is commonly triggered when a manual leak detector senses a pressure drop and restricts flow to alert the site that there is a problem.

Quick workflow
  1. Determine scope: one fueling point vs all fueling points.
  2. Install a pressure gauge on the line at a shear valve.
  3. Verify running pressure, seating pressure, and hold time.
  4. Based on scope + readings, troubleshoot dispenser-side vs pump/line-side causes.
  5. Document readings and final outcome (before/after).
Pressure check (gauge at shear valve)
  • Running pressure: should be above 25 psi.
  • Seating pressure: should settle above 20 psi.
  • Hold test: should hold that seating pressure for more than 30 minutes.
Best practice: Write the numbers down (running, seating, and time held). Photos of the gauge help reduce disputes later.
If slow flow affects ONE fueling point

Most likely: dispenser-side restriction or component issue.

  • Clogged filter
  • Bad meter
  • Bad proportional valve
Best practice: Don’t jump to STP parts if only one position is affected.
If slow flow affects ALL fueling points

Possible causes: line-side issue or pump-side pressure loss.

  • Actual leak (customer may need a line leak test performed)
  • Internal pressure loss in pump head (commonly a bad functional element on a Red Jacket STP)
  • Bad check valve
  • Bad packer o-rings
  • Bad motor or capacitor
Safety: If you suspect an actual leak, treat it as a hazard. Make safe and follow Petro Plus escalation/testing procedure.
Closeout (required documentation)
  • Which dispenser(s) / fueling points were affected
  • Where the gauge was installed (which shear valve)
  • Running PSI, seating PSI, and time held
  • What was repaired/replaced
  • Final result (normal flow restored? still slow flow?)
Standard

Closeout (Before You Leave)

  • Recheck the console status for the tank/line/sensor you worked.
  • Capture “after” evidence (screen + physical area photo).
  • Confirm the site is left clean and safe (no open sumps/pans, no tools, no trip hazards).
  • Write clear notes: what was found, what was done, and the final status.

Goal: the next tech can understand the situation in 30 seconds from your photos and notes.