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4.1 TAMPER ALARM SUPPORT FOR FLOW SENSOR (METER PULSE DETECTOR)
Tamper alarm is an available setting option for a digital Flow sensor.
IDT provides programming support independent of any cable that is used for the
tamper detection circuit. However, not all cable options give adequate protection for
tamper-detection. A fundamental requirement is that the meter pulse detection and
tamper detection circuits share the same cable; detaching the connector from the
meter can then be programmed to cause an alarm.
Compatible Suitable Connector options
Feature Interface types required to support.
Digital Flow sensor 1, 8, 9 R (RJ11 plug),
(Single cable with Tamper Alarm option) B (Binder connector),
F (Fischer connector).
•Tamper alarm for the digital Flow sensor must be enabled in IDT.
(Refer to IDT user guide).
•The meter must internally interconnect (loop) the two signals used for tamper.
4.2 PULSE REPLICATION SUPPORT FOR FLOW SENSOR (METER PULSE DETECTOR)
Pulse Replication is an available option for use in conjunction with a digital Flow sensor.
Pulse replication is used to daisy-chain (connect) equipment together that use the
meter-pulses from the meter.
Requirements are that:
•A digital Flow sensor and channel should exist on the logger which is connected
to the meter-pulse output of the meter and
•Pulse replication must be output onto a second connector, which must be fitted;
meter-pulses are never fed back into the originating equipment.
•Pulse replication setup option must be enabled in IDT.
(Refer to IDT user guide).
4.3 LOGGER CHANNEL TYPES AND DATA INTERPRETATION
Refer to the IDT app user guide for an introduction to this topic.
The loggers comply with the description and examples of setup provided therein.
Where required, IDT can be used to check or make any changes to the logger settings.
Note: The logger will usually have settings pre-programmed by the factory prior to
shipping. However, the installer has responsibility for confirming the settings
are appropriate for use at the installed site.
If you have specific requirements this can be discussed with your HWM sales
representative at the time of ordering the loggers.
The Configure Device pages will have considerable variation in content depending on
the logger model number and the sensors being installed.
Follow the general guidance within the IDT-app user-guide for most sensors. However,
some HWM sensors require specialised setup screens or have their own user-guide
which provides further guidance.