HDI 2522, Руководство пользователя

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HDI 2522 Position Indicator Gauge
IECEX/ATEX User’s Manual – HDI 2522, Rev A | November,2019
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2.B Accuracy
HDI 2522 gauges are factory calibrated to measure and display the exact position of the item that is
being monitored to a tolerance of 1 percent full scale (FS) Each gauge system is shipped with the signed
and witnessed factory calibration test sheets.
2.C Control Head
The HDI 2522 gauge has a 4-inch diameter LCD face providing a bar graph and is supplied with numeric
digits at the bottom of the LCD for quick glance reading. Some adjustments may be necessary
depending upon location and mounting methods to take into account deck lighting and overhead
sunlight conditions. See Section 10 for mounting dimensions.
When preparing or deciding upon a location for mounting, the customer should consider the
interconnecting cable and the access route to attach or remove the cable from the gauge. HDI
recommends having a minimum of four inches of clearance for cable bend allowance from the bottom
edge of the case. See Section 10 for cable clearance details. Alternatively, the customer may request
custom specific cables (in increments of 5 feet) with 90 degree mating connectors if spacing is limited.
These would face directly to the rear of the gauge. For enclosed control panel applications, HDI
suggests a bulkhead access plate on the side so the interconnect cables to the gauges can be pre-
routed. This would allow for plug and play installation with the inline cable coming from the sensors.
2.D Potentiometers
The HDI 2522 gauge comes with several different sensor housings to be compatible to various mount
styles to reduce onsite customization and to simplify installation after removing the existing pneumatic
sensors. This device is specifically matched to the gauge’s control head and is tracked with
corresponding serial numbers that allows HDI to track repair history and specific configuration
requirements. It is important for the customer to properly retain their serial number records for more
efficient support by HDI. The 2522 gauge can be supplied with various potentiometer housing options:
See related connection types in Section 11. General dimensional drawings or photos are also available
upon request to ensure compatibility.