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Schmidt 

Mess- und Regeltechnik

 

©2013 Schmidt 

Mess- und Regeltechnik

  

Fon 0 67 32 - 91 91 20        Fax 0 67 32 - 96 24 42        [email protected] 

Operation Manual Flow Transmitter DW-D 

 

w corresponds to button 

 and 

– to button 

. The device returns back automatically 

after some time to the modus set under 

DWD MODE

 (point 4.2) if no button is pressed. The 

actual point of the menu is always shown in the first line, the chosen value in the second line. 

 
4.1  Function 

BATT CHECK

 

 

The BATT CHECK function is used for giving the user information that the device was not in 
use for a certain time due to power interruption and therefore the amounts of flow could not 
get accumulated during that time by the totalizer. Therefore the device should always be on 
(ON) when using the totalizer function. Please find further information under point 4.6. 

 

If the totalizer is not used, we would advise to switch-off this function (OFF), as otherwise the 
device will only work after restart in case of power loss. 

 

The menu can be operated with P and the functions with 

 or 

. To take over the requested 

adjustment please push P again. 

 

 

4.2    Adjusting the relais

 

 

Press button P until 

RELAIS 1 

appears. Line 2 shows the actual switch point. 

 

Pressing 

 or 

 the wished switch point can be adjusted. For setting the switch point P has to 

be actuated * is appearing. After some time the sigh is disappearing. Adjusting the switch 
point of 

RELAIS 1 

is now completed.

 

Actuate P button once more causes changing to 

RELAIS 

2. 

Adjustment is like described under

 RELAIS 1.

 

 

When the adjusted value is reached, a lamp glows for control. The green one (A) is assigned 
to

 RELAIS 1 

the red one to

 RELAIS 2 (B)

 

   

4.3  Adjusting of output occupancy

 

 

DW-D comes with current, voltage and frequency output. The different output types only can 
be used alternatively. It is only one pair of connector existing for all functions. Connection is to 
block KL1 (see point 3.2 , 3.3 and 3.4 respectively drawing of the board). At menu 

OUTPUT 

analogue, voltage or frequency output can be activated

With the buttons 

 and 

 you can set 

the wished function. Button P takes over the adjustment. 

 

At the option frequency output the max. frequency can be adjusted between 125-32000 Hz. 
Therefore utton P must be pressed after entering the frequency function. Then the max. 
frequency can be adjusted with the buttons 

 and 

. Now the adjusted max. frequency 

corresponds to the upper range value. 

 

 

4.4 

Adjusting of standard indication mode

 

 

It is possible to choose between 2 different indication modes. 

 

At the point in the menu 

DWD MODE 

you can select the modes. In the second line the valid 

mode is shown. 

FLOW

 means indication of momentous flow. 

TOTAL

 means that the value of 

totalizer is shown. You can choose the required indication by using button 

 or 

. Button P 

takes over the adjustment. 

 

Only the selected standard indication is permanent visible. All other points of the menu turn 
back to the standard indication after some time automatically.  

Summary of Contents for DW-D

Page 1: ...the DW D may not directly taken close to 230V or 380V wirings The device should not be installed close to inductance switching loads engines or similar sources of inductive fields 1 3 Direction of Flow It is essential that the unit is mounted so that flow is as indicated by the arrow on the body The unit will not operate unless installed correctly in this way and the possibility of damage to the u...

Page 2: ...cket to the pipe Mount the flow transmitter to the socket ensuring that the pendulum is not damaged during this procedure Align the transmitter into the final desired position before tightening the union nut A Please do not forget to keep the flow direction in consideration before weld on the socket groove 2 4 Torsional moment of the union nut If the device shall be divided from the t piece or the...

Page 3: ...de of the enclosure The button P has the function to choose a point of the menu and to take over the wished values With the buttons and you can set a value Button increases value Button decreases the value Pressing this button one time the value changes for one digit If you keep the buttons on hold the value is changing continuously After some time velocity is increasing At some points of the menu...

Page 4: ...ting the switch point of RELAIS 1 is now completed Actuate P button once more causes changing to RELAIS 2 Adjustment is like described under RELAIS 1 When the adjusted value is reached a lamp glows for control The green one A is assigned to RELAIS 1 the red one to RELAIS 2 B 4 3 Adjusting of output occupancy DW D comes with current voltage and frequency output The different output types only can b...

Page 5: ...present at the time of power failure This guarantees that the operator is aware of that power supply was interrupted and so the amount indicated perhaps not corresponds to the real quantity Attention The power failure supervising function only works if at menu point BATT CHECK see 4 1 the function is activated ON The device has a 8 digit display so a big capacity is available Nevertheless dependin...

Page 6: ...put impermissible values will normally be transferred These are 1mA 20V respectively 0 Hz In order to re establish the function of the item in such a case the necessary software is saved additionally for safety reasons The software can be load again with the menu item FACTORY RESET Therefore push the button or in the menu FACTORY RESET You will be asked to start the action Y button or to break up ...

Page 7: ...oy the calibration Clean the pendulum system before re installing into the pipe IMPORTANT If the DW D must be separated from the tee loosen nut A and cant the unit a little opposed to direction of flow Then lift the DW D with pendulum rectangular out of the tee Please perform all disassembly reassembly operations with great care Avoid damage Especially to the pendulum system 6 TECHNICAL DATA Power...

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