Ametek 3050-AP, Руководство пользователя

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5-2 3050-AP Moisture Analyzer
Display Mode One of five different means of displaying 3050-AP results on-
screen.
EEPROM Electrical Erasable Programmable Read Only Memory
Four-Wire Mode RS-485 communication mode, in which four wires are used,
connected to the “Send Data” and “Receive Data” terminals. Bi-
directional communications may take place simultaneously using
four-wire mode.
LED Light Emitting Diode
Lbs/mmscf Pounds per million standard cubic feet (101.3 Kpa, 15.6
°
C)
Loop Powered Refers to powering the 4-20 mA analog output from an external
power supply. The analog outputs on the 3050-AP can be powered
from either the loop or the analyzer.
mA Milliamp
mg/Nm
3
Milligrams per normal cubic meter
Meter Display A graphical representation of a vertical panel meter, on which 3050-
AP analyzer results are displayed.
PC Personal computer
Port The specific COM (serial) port of a host PC that will be used for
RS-232 serial communication with a Model 3050-AP.
ppmv Parts per million by volume
ppmw Parts per million by weight
Process Pressure The pressure of the process gas, expressed in one of various pos-
sible units. Only required when engineering units of “dewpoint”
are selected. The pressure may be entered as a fixed value, or as
an input to the 3050-AP from a pressure transmitter with a 4-20mA
output, with specified scaling.
Resonance Frequency The frequency at which the QCM operates.
RS-232 A serial communication protocol, in which the RS-232 serial output
of a Model 3050-AP Analyzer may be directly connected to one of
the COM ports of a personal computer (PC). Distance between
the analyzer and the PC is limited to a maximum of 10 meters.