Installation
5
2.1 Meter & totaliser orientation
The flowmeter MUST be mounted so that the rotor shafts are in a horizontal plane. This is achieved by mounting
the meter so that the digital display is facing the user in a horizontal direction, it should never point towards the
sky or towards the ground. If installed incorrectly the weight of the rotors will bear down on the base of the
measuring chamber, leading to inaccuracy and meter damage and failure.
Liquid can flow into the meter from either a horizontal or vertical direction. For vertical flow installations the
recommended orientation is for the liquid to rise through the meter (i.e. travel from bottom to top) to assist in air or
entrained gas elimination. The meter operation is independent of the liquid flow direction thus there is no
markings for inlet or outlet.
2.2 Electrical Installation
As a default the meter and totalizer is wired at the factory with the reed output pre-wired and DIP switches set for
an integral rate/totaliser allowing self-powered operation of the instrument displays.
The output(s) and function(s) available from a meter fitted with an integral instrument depend on the model of the
instrument fitted and may include meter pulse repeater, pre-scaled pulse output, 4-20mA flow output or flowrate
alarms.
Refer to the option in the meter model number and relevant instrument manual. The instrument program will
contain factory default parameters and be programmed with the relevant calibration factor (K factor or scale
factor) for the reed switch meter.
Factory default settings can be found in the instrument instruction manual and it should be noted all output(s) are
turned OFF and if required need to be turned ON then programmed to suit the application requirements.
Summary of Contents for D-40
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