DF9011Precision Tachometer Operating Instructions

2019-09-09

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1.Overview

DF9011 accurate transient tachometer is our new product designed for rotating machine’s rotating speed inspecting.

 

  • Real Non-maintenance Instrument

DF9011 is designed with the concept which is used to monitor the special PLC, so it owns the character of high reliability. DF9011 has a advanced microprocessor inside which is used to continuously check the states of sensors、circuitry and soft. E2PROM records the working state data of the instrument automatically.

 

  • Real multi-function、intelligent monitor instrument

You can set overspeed alarm, 0 rotating speed alarm, tooth number by the keyboard on DF9011. So you can easily inspect and protect various rotating speed variables.

DF9011 supplies many custom-built measurement functions to meet various demands.

DF9011 can also record real-time measurement data which can be downloaded for data analysis and trouble detection later.

 

  • Multilevel output alarm. More reliable protection

DF9011 has accurate, rapid and reliable second-level alarm function. So it can insure that every alarm be correct for each time. When rotating speed exceeds alarm level, DF9011 will alarm immediately and the corresponding relay will work.

 

  • High accurate output current

DF9011 can output high accurate current in the range 4~20mA. Its precision can be ±0.2%F.S.

 

  • Fast display function

DF9011 uses an advanced microprocessor which sampling rate can be millisecond level. So DF9011 can real-time observe the continuous change of steam turbine’s rotating speed.

 

  • Max rotating speed record

DF9011 can automatically record the max rotating speed from the time when be last reset to now. This can help operators to inspect and analysis the trouble later.

 

2.Function Introduce

  • With the input signal from magneto-electric sensor or magnetic reluctance sensor or eddy-current sensor, DF9011accurate transient tachometer can continuously inspect machine’s rotating speed to protect the rotating machine.
  • DF9011accurate transient tachometer is a intelligent instrument which based on advanced DSP processor. Parameters’ observation and setting are configured by keyboard on panel.

 

The following functions are provided:

  • Inquiry of instrument’s basic parameters.
  • Provide each sensor with a DC power which owns the functions of overvoltage protection and short-circuit protection.
  • Distinguish overspeed or 0 rotating-speed; indicate and output instrument’s state.
  • DF9011 has 3 relays. So it can supply multilevel protection and 0 rotating-speed control.
  • The parameters and data are stored in EEPROM ,so they can be stored for a long time even without power.
  • The measuring range、alarm、danger and tooth number can be changed arbitrarily.

 

  • DF9011 accurate transient tachometerhas perfect self-test and self-check functions:
    • The processor check up the instrument’s measuring loop regularly. Once finding the

loop in troubles, the processor will make it out of the circuit and end its work.

  • DF9011 has a OK circuit which inspects whether sensors and cable work correctly. This  circuit will make dangerous-control-output inactive if the corresponding channel occur some troubles , such as a open or short circuit in a sensor inductor 、a unexpecting  output of the leader. So unusual shutting down of the equipment which caused by the relay’s misoperation will be avoided.
  • The instrument can work reliably and steadily at a wide range of supply voltage from 85 to 265V. The instrument inspects power continuously. Once the power drop or fluctuate, it will automaticallylock the working state and make the dangerous-control-relay out of the circuit. The instrument will not go on working unless the power resume normally.

 

3.Technical Data

  • Standard panel-mounted desktop metal case.
  • ABS frame, flexibility film panel.
  • Power Supply: The instrument can work steadily in a wide voltage range form 85 to 265V.
  •                 Rated power: 15watts.
  • Sensor Power: Max current: 35mA;
  • Voltage range : +15V to +24V or -5V to -24V(optional)
  • Input Signal: Input magnetoelectricity or reluctance sensor’s signal. Max frequency: 20kHz.
  • Signal’s min amplitude: ≮100mV.
  • Measuring Range: Set by keyboard;
  • Accuracy : Better than r/min(full scale).
  • Tooth Number: 1~255;
  • Display :Big High-light red 7-segments LED;
  • Accuracy of display : ±1 character;
  • Frequency Measuring Range: 0~10 kHz.
  • Output Record : normal current; short-circuit protection function;
  •                           4~20mA(or 0~10mA), load≮500Ω;
  • Buffer output signal of sensor: short circuit protection;
  • Output Impedance : 100Ω.
  • Relay : 3 relays, each has a relay contact(mid-point, always open)
  • Contact capacity : 220V AC, 2A ;
  • Permissible Ambient Conditions Environment:
  • Temperature : -10~60℃;
  • Relative Humidity : no more than 95% , no dew.
  • Panel Dimension: 160mm×80mm; case depth: 200 mm..
  • Fixing Hole Dimension: (151±0.5)mm×(76±0.5)mm.
  • Weight: ≯2K.

 

4.Panel Instruction

 

4.1  Data Display

The display window on the front panel is consisted of six highlight red 7-segments LED.

The display window will indicate inspecting data when the instrument is working normally.

The window will display function codes and data when in function operation mode.

 

4.2  State Display

Below the display window, there are 7 LEDs. And 4 mores on the left. These LEDs are used to indicate the character of display information , or indicating the functions and warning. The details are listed as follows:

 

LED Below Display Window 

 

     Measuring       LED on: DF9011 is in measuring mode.

 

          Fast-display        LED on: DF9011 is in fast-display type.

 

                 Highest        LED on: Now inquire about and display the max rotating-speed value in record.

 

 

         OverspeedⅠ        LED on: In inquiring and setting parameters mode. Now is inquiring about or setting overspeed-Ⅰ parameter.

 

         OverspeedⅡ        LED on: In inquiring and setting parameters mode. Now is inquiring about or setting overspeed-Ⅱ parameter.

 

  0 Rotating-speed        LED on: In inquiring and setting parameters mode. Now is inquiring about or setting 0 rotating-speed parameter.

 

      Tooth-number        LED on: In inquiring and setting parameters mode. Now is inquiring about or setting tooth-number parameter.

 

                   Cipher        LED on: Display the authorized keywords you input before you enter setting parameters mode.

 

            

LED on: The measuring rotating-speed value exceeds the setting value of alarm Ⅰ. 

 

LED on: The measuring rotating-speed value exceeds the setting value of overspeed-Ⅱ. 

 

  LED on: The measuring rotating-speed value is lower than the setting value of zero-rotating-speed.

 

  LED on:  The instrument is in setting parameters mode.

 

4.3  Communication Interface

 

    RS-232  interface: Communicate with PC through serial port cable.

 

5.Terminal Connections

                                                                                                                         

 

1---------IN+  Rotating-speed sensor input “+”.

2---------IN-  Rotating-speed sensor input “-”.

3---------+12V   +12V power of Rotating-speed sensor. Used for eddy current or reluctance sensor.

4---------shld      Shield end (the shield of sensor’s cable must be connected to this end).

5---------Iout+     4~20mA output “+”.

6---------Iout-   4~20mA output “-”.

7---------+Aa      A point of overspeed Ⅰ alarm relay.  

8---------+Ab      B point of overspeed Ⅰ alarm relay.  

9---------+Da      A point of overspeed Ⅱ alarm relay. 

10--------+Db   B point of overspeed Ⅱ alarm relay.  

11-------- -Aa      A point of 0 rotating-speed alarm relay.  

12-------- -Ab      B point of 0 rotating-speed alarm relay. 

13----14----SET    Not used.

RS232:RXD TXD  GND  Not used.

AC220V:L  N    :  Connect to 220V AC power.

                  :  Connect to reliable ground.

                                  

       

1)DF9011 accurate transient tachometer has a magnetoelectricity sensor. Fixing demands are as follows:

Standard gear: modulus≥1, involute teeth type.

Special trigger:

Space between two teeth:  L ≥ 1.5mm   

Teeth width:     W≥ 1.5mm

Teeth height:      ≥ 3mm         

Teeth thick:       ≥4mm

Recommend fixing clearance: D=0.8~1mm;

Recommend tooth number: 2,3,4,6,12,

15,20,30,60,120;

 

2)When connecting reluctance or eddy current sensor, please fix them according to actual demands.

 

6.Instrument Operation

1)  Connect the terminals and wires according to the mentions above.

Notice:

▲  You'd better use a whole 2-cores shield wire to connect the sensor and instrument. The shield can not be cut, not be connected to the earth or the shell optionally, and should be well insulated. When leading in traverse, the special shielded connector should be set aside. The shield of the cable should be connected to the “shld” port of instrument , and can not be connected to earth through multipoint.

▲  The ground line of AC power must be connected to a reliable ground.

▲  The cable connecting the sensor and instrument can not be parallel placed beside the instrument’s AC power line or other strong electrical loop’s cable for long distance. Especially not in the same wire-pipe.

▲  A non-metal bracket should be used when fixing sensor onto high-power electric motor or generator. So the sensor can be insulated from machine’s case. And the interfere is low, too.

We don't assume responsibilities for the measurement inaccuracy and control uncertainty when the above-mentioned requirements can not be satisfied.

 

2)  When Power the instrument on, its 4 LEDs and all indicators will wink for about 3 seconds .

If the instrument do not pass the self-test , the LEDs and indicators will turn off.

If pass the self-test , the instrument will start to inspect. The rotating-speed value will be displayed in LED window.

The instrument will automatically inspect each power. Once a power become unusual , the “power ” indicator will turn off and the instrument will stop the dangerous relay working . The instrument will not go on working unless the power become normal again.

 

3)  Setting of instrument’s parameters:

The parameters below can be set by the keyboard on panel.

☉ Parameters setting of measuring range 

    Set the measuring range of DF9011.

☉ Parameters setting of tooth number  

    Set this value according to unit’s tooth number.

☉ Parameters setting of overspeed Ⅰ、overspeed Ⅱ and 0 rotating-speed. 

Notice: The relay’s action-delay、recording、and the return difference of warning can be set according to guest’s demand.

 

Notice :The parameters should be preset as possible before the instrument in field-working;

Meanwhile, no parameter can be set when the instrument is working. So the normal inspecting process can not be disturbed. Otherwise, we don’t assume any responsibility.

 

4)The instrument can work independently after parameters setting. By the instrument, you can observe:

☉  The inspecting of rotating-speed.

☉  Reading the recording data of the instrument’s working history.  

 

7.Key Instruction

 

Reset   : Reset system, relays, LED.

      • Press for more than 5 seconds, the LED and relays will be reset.
      • Press for more than 10 seconds, the system will be reset.
      • If the system is reset, the max rotating-speed value will be clear.
      • Press for more than 1 second, the instrument will exit parameter setting mode and not save the parameters modified just.

Highest  : Read the max rotating-speed value from the time when system be reset last time to now. Press for more than 1 second, the instrument will indicate the max rotating-speed value in record. Press again, the instrument will return back to inspecting mode.

 

 : Switch system function.

      • By pressing for more than 1 second, you can inquire instrument’s basic parameters.
      • By pressing for more than 5 seconds, the instrument will enter parameter setting mode. Before change the parameters, you need to input correct keyword.
      • In parameter setting mode, you can switch each parameter by pressing this key.

 

 :In parameter setting mode, you will change the setting bit position of the parameter by pressing the key for about 1 second. The setting bit which is flickering will move left for one bit when press this key for one time. Durative pressing will make the setting bit move circularly.

 

 :Data input key: The setting bit’s value will be added 1 by pressing this key for about 1 second. If the current value of setting bit is 9, it will be 0 when you press this key again.

 

 :Save the setting parameter and affirm the keyword:

      • Save the setting parameter: The setting parameter will be saved into instrument by pressing this key for more than 5 seconds.
      • Affirm the keyword:: After input the correct keyword, the instrument will enter in parameter setting mode by pressing this key for 1 second.

 

       

Fast-display :By pressing this key for about 1 second, the instrument will display the rotating speed in fast-display mode.

 

 

8.Instrument Parameter Setting

(1).    After pressing this key for about 5 to 10 seconds, the instrument will enter parameter setting mode. And the last LED of display window will be flickering.

The password  indicator and setting  indicator will be light on. And the last LED of display window will be flickering.

 

(2). Input keyword(Each instrument has a customer-used keyword)

Input keyword by pressing        and        keys. Then, after pressing       for about 1 second, the instrument will enter parameter setting mode. You can only set the instrument’s parameter after input the correct keyword. The instrument will switch to next parameter setting after the current parameter have been set.

Notice: If you input a wrong keyword for 3 times continuously, the instrument will return to initial state. You can only set the parameters until you input the correct keyword.

 

For example: The current keyword is 114. When input the keyword, the current setting bit will be flickering.
At the same time, the keyword indicator and setting indicator will be light on.

 

Authorized keyword is:

Authorized keyword : 114

 

(3)After input correct keyword, you can set the parameters as follows:

    • Setting of rotating-speed measuring range: The measuring range is the up limit of rotating speed. We have set the low limit as 0r/min. The output current corresponding to up limit of rotating speed is 20mA. That corresponding to low limit is 4 mA.

Setting method: Input the rotating-speed parameter by pressing         and         keys. Then, by pressing        key, the instrument will switch to next parameter setting automatically.

      • If we set as 5000r/min, the instrument’s measuring range will be 0~5000r/min.
      • The inspect indicator and the highest indicator will be flickering. The setting indicator will be light on.

 

    • Setting tooth number: The allowable tooth number range is 1 to 255. If the number you set larger than 255, this paramter will return to 0 automatic.

Setting method: Input tooth number parameter by pressing        and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, set the tooth number as 60.

The setting  indicator and tooth number  indicator will be light on.

 

  • Setting of overspeed , overspeed , and 0 rotating speed parameter:

Notice: This three parameters must satisfy the relation of “0 rotating speed< overspeed Ⅰ<overspeed Ⅱ” parameters.

Setting method: Input these parameters by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, we set overspeed Ⅰ as 3300r/min. If the rotating speed is larger than 3300, the instrument will alarm.

The setting indicator and corresponding alarm indicator will be light on.

The setting of overspeed Ⅱ and 0 rotating speed are the same.

 

Notice: In parameter setting mode, if you dont want to change the current parameter, you just need to press        key and the instrument will switch to the next parameter setting.

 

(4). Save (of application) the setting parameters; All setting parameters will be effect only after they having been saved into instrument. If not saved, the instrument will still work with original parameters. The save method is as follow:

   After all parameter having been set, press the        key for more than 5 seconds. The instrument will be reset and all LEDs and indicators will be flickering for about 3 seconds. Then, all the parameters have been saved into instrument and it will work with new setting parameters. 

(5). Out of parameter setting mode:

   If the instrument is in parameter setting mode, you can make it quit out of this mode by pressing      key.

   Method: By pressing        key for about 1 second, the instrument will be out of parameter setting mode.

 

Notice: If press       key to make the instrument out of parameter setting mode, all parameters which have been set will be out of work. The instrument will still work with original parameters.

 

9.Parameter Inquiry

By pressing       key, you can inquire the instrument’s parameters. Method is as follows:

 

1. Press       key for about 1 second each time, the instrument will switch displays as the table shows below:

 

Function code

Unit

Function Introduce

Display

Indicator which will be light on

 

1

 

r/min

Up limit of measuring range

 

Inspect  and the highest indicato

 

2

 

teeth

Setting tooth number

 

Tooth number indicator

 

3

 

r/min

Setting 0 rotating-speed paramter

 

0 rotating speed  indicator

 

4

 

r/min

Setting overspeed Ⅰ parameter

 

Overspeed Ⅰ indicator

 

5

 

r/min

Setting overspeed Ⅱ parameter

 

Overspeed Ⅱ indicator

When the instrument is working normally, the display window will indicate the measuring value of rotating-speed. Its unit is “r/min”.

2. There are 3 methods to make the instrument out of inquiry mode:

 A:Press        for several times. And the instrument will return back to measuring mode.

B:Do nothing. And the instrument will be out of inquiry mode automatically after 5 seconds.

C:Press       key to make the instrument reset.

 

10.Max Rotating-Speed Value Inquiry/Clear

 This function is used to better know the unit’s working status in a period of time. The value will be clear automatically if the instrument is power off. Method is as follow:

Inquiry: By pressing         key for about 1 second, the instrument will display the max rotating-speed value in record from the time that this value had been clear last time to now.

Clear: 1)By pressing        key for more than 10 seconds, the instrument will clear the max rotating-speed value automatically.

          2)Reset the power.

Quit of the inquiry mode: By pressing        key for about 1 second again, the instrument will return back to measuring mode.

 

11.Fast Display Mode Switch

This function is used to indicate the continuously variability more accurately and roundly.

       Fast Display: In measuring mode, the instrument will enter fast-display mode by pressing        for about 1 second.

       Quit : By pressing          key for about 1 second again, the instrument will be out of fast-display mode.

 

12.System Reset and Relay Reset

    A:System Reset: By pressing          key more than 10 seconds, the instrument will be reset and all LEDs and indicators will be flickering.

    B: Rest alarm LED and relay: By pressing         key for more than 5 seconds, the LED and relay will be reset

 

13.Instrument Parameter Setting (For Technic Engineer)

Only the technic engineer that trained by our company can use this keyword to set instruments parameters. Usually, youd better use filed operators keyword enter parameter setting mode. The definition is the same as before.

Please contact us if you have any technical problem!

 

(1). After pressing this key for about 5 to 10 seconds, the instrument will enter parameter setting mode. And the last LED of display window will be flickering.

The password indicator and setting indicator will be light on. And the last LED of display window will be flickering.

 

(2). Input keyword(Each instrument has a customer-used keyword)

Input keyword by pressing        and        keys. Then, after pressing       for about 1 second, the instrument will enter parameter setting mode. You can only set the instrument’s parameter after input the correct keyword. The instrument will switch to next parameter setting after the current parameter have been set.

Notice: If you input a wrong keyword for 3 times continuously, the instrument will return to initial state. You can only set the parameters until you input the correct keyword.

For example: The current keyword is 1861. When input the keyword, the current setting bit will be flickering.

At the same time, the keyword indicator and setting indicator will be light on.

 

Authorized keyword is: 1861

(3). After input correct keyword, you can set the parameters as follows:

  • Setting of rotating-speed measuring range: The measuring range is the up limit of rotating speed. We have set the low limit as 0r/min. The output current corresponding to up limit of rotating speed is 20mA. That corresponding to low limit is 4 mA.

Setting method: Input the rotating-speed parameter by pressing         and         keys. Then, by pressing        key, the instrument will switch to next parameter setting automatically.

If we set as 5000r/min, the instrument’s measuring range will be 0~5000r/min.

The inspect indicator and the highest indicator will be flickering.

 

  •  Setting tooth number: The allowable tooth number range is 1 to 255. If the number you set larger than 255, this parameter will return to 0 automatic.

Setting method: Input tooth number parameter by pressing        and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, set the tooth number as 60.

The setting indicator and tooth number indicator will be light on

 

  • Setting of overspeed , overspeed , and 0 rotating speed parameter:

Notice: This three parameters must satisfy the relation of “0 rotating speed< overspeed Ⅰ<overspeed Ⅱ” parameters.

Setting method: Input these parameters by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, we set overspeed Ⅰ as 3300r/min. If the rotating speed is larger than 3300, the instrument will alarm.

The setting indicator and corresponding alarm indicator will be light on.

The setting of overspeed Ⅱ and 0 rotating speed are the same.

 

  •  Setting of forbidding/allowing overspeed, 0 rotating-speed relay to output:

Setting by input 0 or 1. 0 denotes forbidding; 1 denotes allowing. If input 0, 0 rotating-speed or overspeed relay will not work. So there is no alarm, and inpect indicator and overspeedⅠ indicator will light off. If input 1, 0 rotating-speed or overspeed relay will work. So when there is  alarm, the inpect indicator and overspeed indicator will light on.

Each bit’s meaning is:

 

Setting method: Input these parameters by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, if the setting value is 1111, it means that reversal direction danger, 0 rotating-speed, overspeedⅠ, overspeed Ⅱ alarm are all allowable. When the measuring value exceeds the setting alarm value, the instrument will alarm.

The inspect indicator and overspeedⅠindicator will be flickering.

 

  • Setting of alarm memory logic/relay interlock: Set by input 0 or 1.
    • 『0 rotating-speed relay』, 『overspeed relay』can be set as interlock mode----In this mode, relays will work when the measuring value exceeds limit. Or not be set as interlock mode----relays will not work when measuring value exceeds limit.

(Notice: the setting of this function must be uniform with ④ setting. All relays must be allowed to work. If not, the relays will not work even if the measuring value exceeds the limit. And the LED indicator will light off.)

    • 『Memory of relay’s action』

The relays are set in memory mode----when 0 rotating-speed or overspeed alarm occur, the corresponding relay will work, and then will be locked. Even if the 0 rotating-speed or overspeed alarm has been canceled,they are still be locked. The relays will be released only after pressing          key for more than 5 seconds.

The relays are not set in memory mode---- when 0 rotating-speed or overspeed alarm occur, the corresponding relay will work. If the 0 rotating-speed or overspeed alarm has been canceled, the relays will be released.

    • 『Memory of alarm LED indicators』

The alarm LED indicator is set in memory mode---- when 0 rotating-speed or overspeed alarm occur, the corresponding alarm LED indicators will be light on, and then will be locked. Even if the 0 rotating-speed or overspeed alarm has been canceled, they are still be locked. The alarm LED indicator will be light off only after pressing          key for more than 5 seconds. This function is useful for analyzing troubles.

The alarm LED indicator is not set in memory mode---- when 0 rotating-speed or overspeed alarm occur, the corresponding alarm LED indicator will be light on. If the 0 rotating-speed or overspeed alarm has been canceled, the alarm LED indicator will be light off.

 

Each bit’s meaning is:

     

 

Setting method: Input these parameters by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, if the setting value is 1011, it means that 0 rotating-speed, overspeedⅠ, overspeedⅡ relays are in interlock mode, the relay and LED indicators are in memory mode.

The inspect  indicator and overspeedⅡ indicator are flickering

 

  • Adjust correction of current zero point: Adjust the current output value of the measuring range’s proximal end(0 r/min). The relation between input value and output current is: The output current will become larger when the input value become larger. The output current will become smaller when the input value become smaller. Repeat these adjustments until the calibration is ok.

Each bit’s meaning is:

     

Setting method: Input these parameters by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically. [Normally, the output current value will  become larger or smaller by 0.02mA when the input value become larger or smaller by 1.]

For example, the setting value is 215, it means that the correction of current zero point is 215.

The inspect  indicator and 0 rotating-speed  indicator will be flickering.连续闪

 

  • Adjust correction of currents full scale: Adjust the current output value of the measuring range’s far end(the up limit value). The relation between input value and output current is: The output current will become larger when the input value become larger. The output current will become smaller when the input value become smaller. Repeat these adjustments until the calibration is ok.

Each bit’s meaning is:

       

Setting method: Input these parameters by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically. [Normally, the output current value will  become larger or smaller by 0.02mA when the input value become larger or smaller by 1.]

For example, the setting value is 947, it means that the correction of current’s full scale is 947.

The inspect  indicator and tooth number  indicator will be flickering.

  • Change of customer’s keyword (keyword of field operator): In this mode, you can change the customer’s keyword arbitrarily. The bit number is not more than 4. Usually, we don’t recommend you to change this keyword.

    

 Setting method: Input the new keyword by pressing      and       keys. Then, by pressing      key, the instrument will switch to next parameter setting automatically.

For example, if the setting value is 114, it means that the current customer keyword is 114. The user must input this keyword before changing the instrument’s parameters.

The inspect indicator and keyword indicator will be flickering.

 

Notice: In parameter setting mode, if you dont want to change the current parameter, you just need to press        key and the instrument will switch to the next parameter setting.

 

(4). Save (of application) the setting parameters; All setting parameters will be effect only after they having been saved into instrument. If not saved, the instrument will still work with original parameters. The save method is as follow:

   After all parameter having been set, press the        key for more than 5 seconds. The instrument will be reset and all LEDs and indicators will be flickering for about 3 seconds. Then, all the parameters have been saved into instrument and it will work with new setting parameters. 

(5). Out of parameter setting mode:

   If the instrument is in parameter setting mode, you can make it quit out of this mode by pressing      key.

   Method: By pressing        key for about 1 second, the instrument will be out of parameter setting mode.

 

Notice: If press       key to make the instrument out of parameter setting mode, all parameters which have been set will be out of work. The instrument will still work with original parameters.