Oxymitter 4000
Explore the measurement. Understand the signal.
Educational simulation only. No connection to equipment. Values and actions are simulated; this is not commissioning, maintenance, or process-control guidance.
Rev AE · Nov 2024Set the conditions
Change one input. Watch the signal.
Your hypothetical process input, not a combustion model.
Startup is stepped explicitly. No heating curve is assumed.
Power off to change hardware settings. §3.4.2, pp. 67–68.
Output & loop settings
Loop supply availability and wiring are not simulated. §3.4.1–2.
Linear scaling
Manual table value at 736°C and 20.95% reference O₂.
Table 8-1 · pp. 107–108 ↗O₂ → current
Linear signal scalingI = 4 + 16 × (O₂ / 10)0–10% O₂Follow a two-gas calibration
Explore CAL states and track versus hold. Every timer is advanced by you.
8% and 0.4% are illustrative concentrations from the manual's test-point examples, not prescribed gas settings. Input-to-reading changes are idealized snapshots, not gas transport.
No slope, cell constant, or acceptance test is calculated. The selected result is an educational scenario.
The manual calls for control-loop handling before calibration. This simulator does not operate a control loop, gas supply, or sequencer. Consult the complete manual and site procedures for real work.
Ready to begin
Browser controls simplify the documented sequence. They are not a replica of the physical keypad. Flash patterns are described; blink durations are not invented.
No accepted scenario yet. Invalid and aborted calibrations retain the previous record.
Read the state before the number
Explore one documented fault at a time. Physical causes are not calculated.
Faults marked self-clearing clear after simulated cause removal. Others remain until reset by a simulated power cycle. No repair procedure is provided.
Logical assignment only. Electrical polarity, relay behavior, low-O₂ thresholds, and handshake timing are not emulated. The manual specifies +5 Vdc with 340 Ω series resistance.
Table 2-9 · p. 54; §8.4 · pp. 109–110 ↗Unlock with a Z pattern
An isolated interface exercise. It does not lock the lab controls.
Top left → top right → bottom left → bottom right.
30 seconds is the manual's default lockout interval. This exercise advances it on demand.
§6.2.2 · p. 90 ↗Manual first. Model second.
Emerson / Rosemount Oxymitter 4000 · 00809-0100-4340 · Rev AE · November 2024.
What this lab models
Deliberate boundaries
- Steady signal scaling uses the documented proportional 4–20 mA relationship. Values outside the configured span are withheld; no saturation behavior is invented.
- Cell mV uses exact entries from Table 8-1 at 736°C and 20.95% reference oxygen. Other concentrations show no table value. No interpolation or fitted cell constant.
- Time advances by explicit actions. Startup is approximately 30 minutes in the manual, with no thermal ramp modeled. Calibration sampling defaults to 5 minutes; purge defaults to 3 minutes.
- Calibration has selected valid/invalid results. There is no synthetic slope, constant, degradation model, or proof of real calibration validity.
- Faults are injected one at a time. No numerical fault thresholds, simultaneous-alarm priority, wiring faults, or repair actions are assumed.
- Physical behavior such as furnace chemistry, temperature response, reference-air loss, diffusion blockage, gas mixing, and external loop supply failure is outside this model.
- Controls are learning controls, not a complete LOI, HART, AMS, or membrane-keypad emulator. Xi electronics and other probe/converter variants are excluded.
Table 2-8 and §5.2.2 say this alarm was disabled/discontinued in 2014. Other passages retain historical references. It is not generated here. Logic modes containing it are labeled as legacy references.
The §3.4.3 text contains a duplicated TP6 reference. This lab uses the consistent TP5/TP6 descriptions in §5.2.3–4; it does not turn that typo into wiring guidance.
Emerson and Rosemount identify the source equipment. This independent InstMates learning lab is not endorsed by the manufacturer. Use the manufacturer documentation and your approved procedures for real equipment.
© 2026 InstMates. Original simulator code and interface design. Manufacturer names, trademarks, and manual content remain the property of their respective owners. Independent educational simulator; no manufacturer endorsement is implied.