In order to use this function, you need to do basically 3 things. Firstly selecting the relay output option, secondly selecting batch trigger option and lastly setting the batch valve and enabling it.
The sections of the manual that describe these steps are given below;
·
Relay Output Setup
(M79)
Relay Output Setup [79
15.
Not Using
|
Set the system
to put Relay output when one of the following sources occurs;
0.
No Signal
|
13.
Energy NEG Totalizer
|
1.
Poor Signal
|
14.
Energy NET Totalizer
|
2.
Not Ready (No*R)
|
15.
MediaVel > Threshold
|
3.
Reverse Flow
|
16.
MediaVel < Threshold
|
4.
AO over 100%
|
17.
ON/OFF Via RS232
|
5.
FO over 120%
|
18.
Disable Relay
|
6.
Alarm #1
|
19.
Timed Alarm #1
|
7.
Reverse Alarm #2
|
20.
Timed Alarm #2
|
8.
Batch Controlller
|
21.
Batch Total Full
|
9.
POS Totalizer
|
22.
Timer by M51
|
10.
NEG Totalizer
|
23.
Batch 90% Full
|
11.
NET Totalizer
|
24.
Disable Relay
|
12.
Energy POS Totalizer
|
The RELAY is of
SPST (Single pole, single throw) Normally Open (NO) type. It is rated for 125VAC
1A and 30VDC 2A. It is highly
recommended that a slave relay to be utilized whenever a large resistive load
or inductive load is to be controlled.
·
Batch Trigger
Select (M80)
Flow Batch CTRL in
0.
Key Input
|
Select the
batch control type. Available options are as follows;
0.
Key Pressing
|
5.
AI4 Falling Edge
|
1.
Serial Port
|
6.
AI5 Rising Edge
|
2.
AI3 Rising Edge
|
7.
AI5 Falling Edge
|
3.
AI3 Falling Edge
|
8.
Timer-Periodical
|
4.
AI4 Rising Edge
|
9.
Timer-Daily
|
For the input
analog current signal, 0 mA indicates “0”, 4mA or more indicates “1”.
·
Flow Batch
Controller (M81)
Flow Batch Controller
10000
x 1m3
|
The built-in
batch controller to set the flow batch value (dose).
The internal
output of the batch controller can be directed either to the OCT or the RELAY
output circuits. M81 and M80 should be
used together to configure the batch controller.
Note: Because
the measuring period is 500mS, the flow for every dose should be keeping at 60
seconds long to get a 1% dose accuracy.
Demonstration Video
We took video of this process to give clear insights into this function. In this demonstration,Preparations before using
1. we hooked up the multimeter leads to relay output terminals and set it to connectivity test with audible queue.
2. set the Relay Output Setup (Menu 79) to "21. Batch Total Full".
3. set the Batch Trigger Select (Menu 80) to "0. Key Pressing".
4. set the batch value (Menu 81) to "10 Liter".
The Batch Process Control
And then we activated the control. Then you'll see the "ON" on the left side of he display. And then the current totalizer value. And the multimeter shows "0L", which means that the relay is open.
When we turn on the pump, the totalizer starts to increase and then finally reaches to 10 Liter, when the multimeter beeps indicating that the relay is closed. And "OFF" is shown in the left side.
That means that the batch is finished.
When you restart the batch, you just press the ENT button again and this process repeats itself.
Here's the video. https://youtu.be/g-VrGFDA26o
To learn more about this function and our ultrasonic flow meter. Please visit our website, www.maxiflo.co.kr.
