Regal RH40, Руководство пользователя

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3) Enter the higher limit of flow rate in the “Freq Max” window as follows:
M

Input/Output

Frequency Output

Freq Max
Example: Assume that the flow rate varies in a range from 0m3/h to 3000m3/h and the required output
signal frequency should be in the range 200Hz to 1000Hz. The user should enter 0 for the “Freq Min”
window, 3000 for the “Freq Max” window, and 200 followed by 1000 for the “Freq Range” windows.
***Please note that the user needs to select the frequency output option ***
§4.15 How to use the Totalizer Pulse Output
The flow meter will produce a pulse output with every unit of liquid flow. This pulse could be used by an
external pulse counter to measure the accumulation of the flow rate. Refer to §4.4 and §4.5 for the set up
totalizer units and multiplier. The totalizer pulse output can only be connected to OCT devices or
BUZZER hardware devices.
Example: Assume that the POS totalizer pulse output is needed and every pulse represents 0.1 cubic
meter of liquid flow. Assume also that the pulse output is connected to an internal buzzer. With every 0.1
cubic meter of flow, we need the BUZZER to beep for a while. In order to achieve this, the following
steps must be performed.
1) Select the Cubic Meter (m
3
) unit in window M52

Flow Rate unit. This can be accessed as follows:
M

System

Unit (M 52)

Flow Rate Unit

Change Volume
2)
Select the Multiplier factor as ‘2. X 0.1’ in menu window M41.
§4.16 How to set up the alarm signal
There are two types of hardware alarm signals that are available with this instrument. One is the buzzer,
and the other is the OCT output.
The triggering sources of the alarming events for both the Buzzer and the OCT output could be:
1) There is no receiving signal
2) The signal received is too weak
3) The flow meter is not in normal measurement mode
4) The flow direction is changed
5) Overflow occurs at the Frequency Output
6) The flow is out of the specified range