TDC-GP21 datasheet(35/91 Pages) AMSCO

35 / 91 page

Ultrasonic-Flow-Converter

TDC-GP21

3-10

acam messelectronic gmbh - Friedrich-List-Str.4 - 76297 Stutensee - Germany - www.acam.de

REPEAT_FIRE

Number of pulse sequence repetition for

"quasi-sing-around"

0 = no signal repetition

1 = 1 signal repetition

2 = 2 signal repetition

...

7 = 7 signal repetition

PHFIRE

Enables phase reversing for each pulse of

a sequence of up to 15 possible pulses.

PHFIRE[0..14] are available.

0 = no inversion, phase jump HIGH-LOW

1 = inversion, phase jump LOW-HIGH

Bit 23 = 0 (mandatory)

ID5

Free bits, e.g. to be used as identification

or version number

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

7-0

ID6

0 0

Parameter

Description

Settings

EN_ANALOG

Activates the analog part for the ultrasonic

flow measurement is. If active, this section is

powered only for the duration of the

measurement to save current. STOP1 and

STOP2 are analog inputs now and

automatically selected by the internal

multiplexer.

0 = STOP1 and STOP2 are digital inputs

(TDC-GP2 compatibility)

1 = The analog section is used.

Mandatory:

If EN_ANALOG = 0 then set DELVAL1 =

DELVAL2 = DELVAL3 = 0

NEG_STOP_TEMP Inverts the SenseT input signal. This is

mandatory when the internal comparator is

used instead of the external one like in TDC-

GP2

0 = external 74HC14 is used (TDC-GP2

compatibility)

1 = internal Schmitt trigger is used

DA_KORR

Sets comparator offset from -8 mV to +7

7 = 7 mV

15 = - 1 mV

Member of the ams Group

TDC-GP21 Datasheet(PDF) 35 Page - ams AG

TDC-GP21 Datasheet(HTML) 35 Page - ams AG

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