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There were 21 questions found for your query: (Page 1 of 2)     «« |  Prev | 1 | 2 | Next | »»
  1. questionWhat is the difference between Zero Fired and Phase Angle Fired SCR Power Controls?
    Phase Angle Fired SCR Power Controls Phase angle SCR power controls adjust the output voltage/wattage by delaying the turn on of the output voltage during each half cycle.  The end result ...

  2. questionThe transformer dials shown on the site indicate from 0 to 100, yet out put is greater than 100v (140v). How does one know the output voltage when in use if not a Digital model?
    The variable transformer dials are marked as 0-100% of rated output voltage.  It is recommended that the dial to be used for estimating the output voltage only.  If the voltage needs to ...

  3. questionHow do I use the 2300 with input voltages of greater than 50mV?
    The model 2300 supports the following signal types Thermocouple, PT100, DcmA, and DCmV. It is possible to use it with a DC voltage signal by using external resistors to drop the voltage sign ...

  4. questionWhat is the difference between constant current and constant impedance ratings on Variac variable transformers.
    Constant Current Rating:  This is the continuous rated amperage at any output voltage. Constant Impedance Rating:  This is the maximum continuous amperage resistive load  at 100% ...

  5. questionCan I vary the speed of my motor with a variable transformer?
    Many motors can use a variable transformer for speed control. Motors that usually can be controlled by varying the motor voltage:Universal MotorsSeries Wound MotorsTorque MotorsShaded Pole MotorsM ...

  6. questionCan I connect another DC voltage source to the DaqPRO to extend battery capacity?
    Mains Adaptor The Mains adaptor (AC/DC adaptor) converts mains power (from a wall outlet) to a voltage suitable to DaqPRO. Output: Capacitor filtered 9 to 12 VDC, 400mA. Female plug, center ...

  7. questionHow can I measure DC current with the MMS3000 T6V4?
    It is possible to measure current with the T6V4 by placing a shunt resistor in the current path, and measuring the voltage over the resistor. For example see the diagr ...

  8. questionWhy are the valve motor drive (VMD) outputs limited to 120V AC operation?
    If the valve motor is driven directly by the controller output relays, the controller outputs are limited to half the voltage of their nominal rating. This restriction does not apply if the mo ...

  9. questionVariacs and Guitar Amplifiers
    Variable transformers are used for several purposes with guitar amplifiers.    Tubes in amplifiers last longer if voltage is gently increased during power up.  The filaments in t ...

  10. questionVariacs for my amp! I own an All-Tube (analog power) 100w guitar amp, and have recently been informed of a way to hook up a variac to the amp. By doing this, it allows the player to use the variac a
    Variable transformers (variacs) are commonly used with various tube type amplifiers and other tube type devices.  The primary purpose is to bring the voltage up slowly in order to extend the ...

  11. questionWhat is the output of a thermocouple?
    Thermocouple output is a small voltage (mV) that relates to the temperature difference between the sensing end and the termination end. For the voltage relationship: Thermocouple Reference ...

  12. questionIs any kind of calibration required and/or beneficial for a Variac?
    We do not consider our variable transformers as devices that require calibration unless they include a digital or analog meter.   A variable transformer only provides an output that is ...

  13. questionHow do I adjust the bias and gain on my SCR power control?
    Bias & Gain Adjustment The bias & gain must be properly adjusted so that the SCR power control responds properly to the input signal.  ISE configures and adjusts the SCR power contro ...

  14. questionWhat is the difference between the Dual Setpoint and Remote Setpoint options?
    Standard controllers operate with a single target setpoint which is entered from the front panel. Most West controllers can also be fitted with a Dual Setpoint or a Remote Setpoint option. Dua ...

  15. questionCommander sometimes stops scanning or displays other errors when running on a laptop computer.
    Laptop computers use background software to monitor and conserve battery voltage.  This software can sometimes interfere with Commander in an attempt to prevent battery discharge.  Sympt ...

  16. questionHow can I protect my three phase variable transformer from excessive currents?
    You may (and it is highly recommended) place a fuse in each phase between the variable transformer and the load. On the models listed the ouputs are terminals #3 on the three coils.One other cauti ...

  17. questionAre there any recommendations for using Using our Variac® variable transformers for light dimming applications?
    Our Variac® variable transformers are often used for light dimming where electrical noise from common electronic dimmers is a concern.  Our variable transformers dim the lights using tr ...

  18. questionMy SCR power control has full line voltage output all the time with no load connected.
    It is normal that the SCR control has full line output when no load is connected.  This is caused by the small leakage that is present on all SCR's.  You must connect a suitable load t ...

  19. questionWhat sensor types are compatable with the DaqPRO? How do I connect?
    Sensor types and connections Each of the 8 input channels of DaqPRO is multipurpose and can be individually configured to any of the following types and ranges: Current: 0 - 20mA Pulse ...

  20. questionCan I Use Type K thermocouple wires (extension) for an E type thermocouple? What aspects need to be considered for this different type of the thermocouple vs extension wire connection?
     You should always use thermocouple wire or thermocouple extension wire that matches the type of thermocouple that you are using (in your case E).  Thermocouple or thermocouple extensi ...

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