GE AT868 Aquatrans
GE Support contact: Steve 978 437 1554 (Massacheusetts)
The Aquatrans AT868s also have pulse output on each unit as standard.
AT868-1-1-1 has a 0-20mA channel, a totalizer channel (pulse output) and RS232.
For complete wiring diagram see here:
https://www.gemeasurement.com/sites/gemc.dev/files/at868_wiring_diagram_english.pdf
Instructions for how to setup and read the pulse output:
Accessing a Totalizer/Frequency Output
These outputs can be configured for frequency or totalizer output using PanaView™.
The totalizer output issues one pulse per selected volume of flow. The meter produces a pulse each time the programmed amount of flow passes through the pipe.
The frequency output issues a frequency that is proportional to the assigned measurement parameter, such as flow rate.
Output B and D can be configured independently. Typically, Output B is used for Channel 1 and Output D is used for Channel 2; however, outputs can be configured to measure either channel.
Press [ESC], [ENTER], [ESC]. The meter enters the user program.
Press [X] until PROG appears and press [ENTER].
Press [X] until GLOBL appears and press [ENTER].
Press [X] until I/O appears and press [ENTER].
Press [X] until OPTN appears and press [ENTER].
Press [X] to select B or D and press [ENTER].
If you are configuring a
frequency output, proceed to the next section Setting Up a
Frequency Output on page 2-31.
totalizer output, proceed to Setting Up a Totalizer Output on
page 2-32.
Setting Up a Totalizer Output
At Output B or D, select OFF or TTLZR and press [ENTER].
Do one of the following:
If you selected OFF, the meter returns to the Global I/O window.
Go to Procedure Options on page 2-32.
If you are using a 1-channel meter, go to Step 4.
If you are using a 2-channel/path meter, go to Step 3.
At Channel, press [X] to select the desired channel/path and press
[ENTER].
Press [X] to select the desired measurement parameter and press
[ENTER].
Enter a value for the minimum pulse on time (between 50 µsec and 500,000 µsec) for the frequency of the totalizer pulses and press [ENTER]. Press [W] and [X] to move the cursor to desired location and press [S] and [T] to increase or decrease the
number.
Note: A complete pulse consists of equal amounts of ON and OFF times. Choose a value that is compatible with the counter to be used.
At UNITS/PULSE enter a value for the number of measurement
units represented by each pulse and press [ENTER].