Dwyer UTS - Manual (Page 11)

Setting Relay 4 to Report Errors
This mode enables you to use the relay as a trigger to set on an alarm or siren in
case the unit produces inaccurate measurement results due to an electrical failure
or acoustic problem. You can configure relay 4 to report errors or to remain in
normal set-up mode. Once the error mode is enabled and one of the situations
described below appears, the relay will be closed and an error message will show
on the unit display. These error messages will describe the following situations:
• - In case of lost echo or when measurement result is higher than
tank height.
• - Near dead zone.
The relay will remain in Open mode as long as the unit displays proper
measurement values.
To Set Relay 4 for Error Report:
Setting relay 5 for Flow Totalization Pulse Indication
You can choose to set relay number five (5) for flow totalization pulse indication or
to remain in normal set-up mode. This option enables you to reserve the
accumulated value gathered by the unit by using an external counter. In this way,
the total value will be reserved even if the unit will be replaced. Once set for this
option, the relay will generate a pulse per Xm
3 or Gallons of flow, depending on the
value that you have selected from the following list (you can define the X value): 1,
10, 100, 1000, 10000, 100000. An electrical pulse will be generated whenever the
relay total flow value will be larger than the value selected from the list. You can
also choose a pulse width between 20 to 2000 milliseconds with a resolution of 10
milliseconds to match your equipment requirements. For example, the relay will
generate a pulse with a duration of 1000 ms, and each time the value of flow will
reach 10,000 M
3 (provided that this value was selected from the optional list of
values).
To Set Relay 5 for Pulse Indication:
Following the above configuration example, a pulse with duration of 1000 ms will
occur each time the total value of flow will reach 10,000 m
3 .
Setting the Series UTC-1XX-XXX-X Relay Values
You can set up to five relay switches for Series UTS. Each relay enables you to
define open and close values for the switch, for functions such as triggering an
alarm.
The relay values function as follows:
• Open value: (Default = 0) The relay opens if the level measured in the tank is
higher than the entered open value.
• Close value: (Default = 0) The relay closes if the level measured in the tank is
lower than the entered close value.
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NOTES:
The same configuration applies when selecting volume mode for the relays.
Relays OPEN and CLOSE values should differ when working in FLOW or
TOTALIZATION mode.
Press/Action Display Explanation
Move to relay 4 using NEXT or BACK
buttons and ENT. to enter the relay
mode.
Choose Err En to enable error alert or
Err dS to disable.
or
NOTES:
Prior to setting relay 5 for pulse indication, you should configure the Series UTC
for Totalization (see Chapter 5, Additional Features).
To configure relay 4 and 5 to work in a normal setup, select Open or Close mode
and enter the required parameters. When configure relay 5 as tOt En, the active
options are tOt En and tOt dS. To go back to normal work press tOt dS.
The result of the totalization amount is updated every 30 seconds.
Press/Action
to select enable
or disable mode.
to select a
pulse value from the
list.
to enter a pulse
width value (as
specified in your
equipment).
Display
For example,
10,000 m
3 .
For example,
10,000 m
3 .
Explanation
Move to relay 5 using NEXT or BACK
buttons and ENT to enter the desired
operation mode.
Choose tot En to enable pulse indication
option or tot-ds to disable this option.
Select a pulse value from the list of
optional values using NEXT button and
ENT to save your selection. Optional
values are between 1 to 100,000.
Enter a pulse width value between 20
milliseconds and 2000 milliseconds (the
resolution of 10 milliseconds).
or
or
NOTES:
The close value must be lower than the open value for each relay, otherwise an
message is displayed.
An message is displayed if a relay value is greater than the tank height
value.
In case of no measurement (caused by electronic problem or acoustic
interference) relays will switch to Close state.
For safety reasons, relays parameters will reset when the following parameters will
be modified: Tank height, relays indication mode (Level/ Distance/Flow),
measurement mode (except when changing from Level to Distance and vise
versa) Flume/Weir type, measurement units, strapping table.