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  • Users: jumacao
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  1. jumacao

    2D matrix encoding

    For a GS1 2d matrix. How to encode the first FNC1 AND A SEPARATOR ?
  2. jumacao

    Production Network

    A new production network. The equipment PC will request data to a central server. The server will send back a package of 50 data points each time. How I challenge the network capability to handle the traffic ? How to measure the time require for a transaction? What to check?
  3. jumacao

    Wet Steam table.

    If we have saturated steam at 97 % quality. If we are measuring a temperature 2 degrees lower than the saturated temperature. What could cause that? We are measuring the pressure and the temperature.
  4. jumacao

    LED sensor light measurement

    What is the lumens of a sensor LED light? How can it be measure?
  5. jumacao

    HVAC question

    In a packaging line for a pharmaceutical product. We are going to move a wall four feet. One room will be 4 feet longer and the second room 4 feet shorter. It is relative easy to move the wall. How the HVAC is affected, if affected, by the changes?
  6. jumacao

    sample size questions

    If I have a defect witha frequency of 1 each 1500. How I test a new system , that eliminates that defects, to shows 0 defects? How many samples?
  7. jumacao

    can I get 208 v from a 480 V

    Hi: Just trying to determine what to ask during a machine installation. Can I get a 208 V power from a 480 power source ?
  8. jumacao

    How to measure if the air is ionized in an unscramble machine ?

    Hi: We are trying to validated an unscramble machine in a tablets packaging line. The machine clean the bottle inside with ionize air and place a dessicant inside the bottle. How can we test if the machine is ionizing the air ?
  9. jumacao

    circuit breaker question

    A device says it need and electrical utility and a circuit breaker of 10 A. Now, it have a circuit breaker of 20 A. Is 20 A OK or it is wrong? What is the function of the circuit breaker ?
  10. jumacao

    Voltage supply specification and power supplies

    Hi: We have a a power source of 120 VAC. System requires 115 VAC. The system have a power supply that is suppose to supplies 24 VDC to a weighing cell. Now it is supplying 30 VDC. The power supplies input is 121 VAC (specification is 115 VAC). Why we have 30 VDC at the weighing cell? Is...
  11. jumacao

    question about instruments tolerances

    I am considering a Checkweigher machine to detect missing parts in a assembly. The assemblies have between 3 to 6 different parts. The smaller parts weight around 3 grams. The assemblies weight variability is up to 0.5 g. What process tolerances should I use? What checkweigher accuracy...
  12. jumacao

    how to determine tolerance?

    I need to determine what scale I need to determine if an envelop assembly lack one material(on-line check). The envelop assembly weight are (one example): A 3.53 B 3.016 C 3.124 D 4.83 E 10.293 F 14.322 G 8.103 Total 47.218 What process tolerance I need for my system?(Why?) What scale...
  13. jumacao

    can I connect a car battery to a PC UPS

    Can I connect a car battery to a PC UPS ? If so, How?
  14. jumacao

    How to calculate UPS time ?

    For UPS with batteries packs of 5000 VA. How much the UPS will last for: 1- A PC that consume 280 Watts 2- An instrument that consume 36 Watts
  15. jumacao

    how to consider tolerance in process design

    How instruments tolerance affect system process? If I have a range of 45 to 55 and want to measure up to 0.1. What instrument do I need (tolerance???)?
  16. jumacao

    help determining root cause

    Inside a chamber the acceptable range is 45 C to 55 C. During one run it was recorded 44.9 C. The instrument tolerance is 1 C. Last year the same chamber fail becasue over temperature. No other failure observe in any other machines. The chamber is an ETO sterilizer. What could be root...
  17. jumacao

    eto monitoring

    DO anyone know a cheap and reliable way to monitoring (including alarms) ETO in a room during a shift?
  18. jumacao

    what tolerance

    what instrument tolerance I need if I want to measure a process up to one decimal point?
  19. jumacao

    high current issue

    We have a fan motor in a chamber. We observer a current above high limit in one fan. WHat happen?
  20. jumacao

    Sterilization machine/cold spot failure

    The range of the cold spot temperarure during an ETO (ethylene oxide) sterlization cycle is 45-55 C. The graph displays 44.9 C ones. What could be the possible causes for this parameters outside the expected range.

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