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GE AT868 Aquatrans

https://www.gemeasurement.com/flow-meters/ultrasonic-liquid/aquatrans-at868-ultrasonic-liquid-flow-meter

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.

  1. Press [ESC], [ENTER], [ESC]. The meter enters the user program.

  2. Press [X] until PROG appears and press [ENTER].

  3. Press [X] until GLOBL appears and press [ENTER].

  4. Press [X] until I/O appears and press [ENTER].

  5. Press [X] until OPTN appears and press [ENTER].

  6. Press [X] to select B or D and press [ENTER].

  7. 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

  1. At Output B or D, select OFF or TTLZR and press [ENTER].

  1. 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.

  1. At Channel, press [X] to select the desired channel/path and press

[ENTER].

  1. Press [X] to select the desired measurement parameter and press

[ENTER].

  1. 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.

  1. At UNITS/PULSE enter a value for the number of measurement

units represented by each pulse and press [ENTER].

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