Siemens SITRANS FUH1010PVDX, Operating Instructions Manual, Page: 150 / 308

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CQO:1010PVXFM-3 Section 5
ENT
Installation Drawing 1010DXS2-7 (Sheet 4 of 4)
(Ultra Performance Flowmeters)
PIN# SIGNAL FUNCTION NOTES
9 Pgen - STATUS BIT RETURN Digitally Synthesized Pulses User .
10 Pgen + STATUS OUTPUT Spanned and Proportional to Flow Rate.
TB1
PGEN Wiring Diagram
The unit must be wired as shown in the typical FUH1010PVX example below before assigning PGEN
output pulses.
To change the default PGEN settings:
From the [Span Data] menu press
From the [PGEN P/ Unit Volume ] menu cell, press to activate the numeric entry.
Use the numeric keys to enter the desired number of PGEN pulses per unit volume.
NOTE: Ensure that the number entered will provide sufficient resolution while remaining within
the 20 Hz to 5000 Hz pulse frequency range. Note that the PGEN output will stop send-
ing pulses at flow rates corresponding to frequencies less than 20 Hz. In this case the
PGEN value must be increased.
To store the data press
PGEN
The [PGEN P/ Unit Volume ] menu cell entry controls a digital output pulse function and is available in
Custody Transfer units only (designated by a “C” in their part number). It allows the assigning of PGEN
digital signal pulses per unit of volume. For example, 1000 output pulses per unit of liquid.
The default PGEN value is configured to provide a 5000 Hz output frequency at a flow velocity of 100 ft/
sec (30 meters/sec).
NOTE: The unit of volume is determined by the Volume Units initially selected from the [Total
Volume Units] menu cell option list.
PGEN RTN
TB1
RTN
+Vc
PGEN
TO END USER
EQUIPMENT
OC PGEN SIGNAL
OPTO-COUPLER
PGEN
1010 UNIT
ELECTRONICS
SEE NOTE
+5Vdc < +Vc < 24Vdc
R = 1800 Ohms Minimum
R = 1/2 WATT Minimum
TB1-9 PGEN-
EMMITER RETURN
TB1-10 PGEN+
OPEN COLLECTOR
1010GCDX TB1 WIRING
DIGITAL PGEN SIGNALS
TB1 Wiring
Digital PGEN SIgnals