Magnetic flow meter iMAG 4700is the most economical flanged electromagnetic flowmeter on the market produced by seametric instrument. With electrodes designed to discourage fouling, it is available in 4” to 12” pipe in municipal or industrial water, waste and reclaimed water, pump stations, and packaged plant applications. (For 3” version, see iMAG 4600-300.) Minimal straight pipe requirements allow.
Magnetic flowmeters iMAG to be used in piping configurations where there is little space between the meter and an elbow.
- Easy setup
- Minimal straight pipe
- Mounted or remote rate & total
- Tamper-evident seal
- NSF-61 approved
- IP68 rated
iMAG Water Meter Accuracy
iMAG 4700 Dimension
iMAG water flows meter straight Pipe Recommendations.
Pulse Output Configuration.
A pulse output is standard on all models. Since this is an isolated output, the external equipment must include a DC power source to regenerate the pulse from the open-collector output (transistor equivalent of a contact closure). A pull-up or pull-down resistor may be needed if not included in the user equipment as shown in the diagrams.
Both the power source and resistor may be supplied internally in some types of control and monitoring magnetic flow meter devices. If not, as for most PLC discrete input modules, they must be added externally at the module input terminals. The pulse output rate in volume units/pulse can be set by the user via the SET P tab on the meter’s setup menus.
Battery Powered Units
The iMAG 4700 flow meter can come configured with two replaceable 3.6V lithium ‘D’ batteries. In this configuration, the only option/output is the scaled pulse output which comes standard. The scaled output for the battery-powered option has a maximum pulse rate of 150 pulses/second, with a fixed pulse width of 2.5ms. Be sure to set your P-value such that the meter will function properly over the flow range in your flow meter application.
The sample rate of the meter is user selectable through the SAMP tab in the meter’s sub-menu. Sample periods of 1/5, 1/3, 1, 3, 5, 15, 30, and 60 seconds can be selected. Larger sample periods will yield longer battery life but slower response time. Care must be taken to select a sample period that is suitable for your application. See the table below for the expected battery life as a function of the sample period