-3-
3.4 The external connection for the two serial RS-485 communication ports is on the Power
Supply Module terminal strips. Port 2 is for RS-485 serial communication to Altronic
instruments, and port 3 is for RS-485 serial communication to a PC (personal computer) or
a PLC (programmable logic monitor) to perform remote monitoring or control functions if
desired.
3.5 Terminals marked IGN IN and PU IN are used by the DE-2200 system to detect either engine
rotation or ignition system firings. This input monitors changing signals such as those seen
on either the ignition shutdown lead or a magnetic pickup monitoring an engine mounted gear.
-
The IGN IN terminal connects to the positive (+) C.D. ignition shutdown lead.
-
The PU IN terminal connects to one magnetic pickup input; the other pickup wire
connects to the minus (
!
) terminal on the Power Supply Module.
NOTE: An installation may use
only one
of the terminals IGN IN or PU IN.
4.0 TERMINAL MODULE
4.1 The Terminal Module is made to be rail mounted and is the point of interface between the field
sensor wiring and the DE-2200 monitor system. A removable dual terminal strip is used for
the connection of the system to the equipment mounted discrete sensors which may consist
of up to 16 normally open or normally closed switches as well as up to 14 analog transducers
and 7 thermocouples selectable as type “J” or “K”. The 16 discrete sensor inputs are similar
to previous Altronic DA, DD, and DE annunciator systems and are numbered in the typical
annunciator format as 10-17, 20-27. The 14 analog inputs are numbered 30-37 and 40-45;
30-36 accept industry standard transducer signals in the range of 0-5 VDC. Inputs 37 and
40-45 accept 0-5 VDC transducers or industry standard type “J” or “K” thermocouples.
Connections from the Terminal Module to the Display Module are made using the 693115-x
series Cable Assembly.
4
4.2 The DE-2200 is designed to operate with industry standard, voltage or current amplified output
transducers in the range of 0 to 5 Vdc or 0 to 25 mA. Four series of transducers are available
from Altronic: pressure transducers 691201-x, 691204-x and temperature transducers
691202/203-300, 691212/213-450.
4.3 PRESSURE TRANSDUCERS - The pressure transducers, Altronic P/N 691201-x and P/N
691204-x, are packaged in a rugged sealed case with a NPT pressure port, a corrosion
resistant media cavity, and a Packard Electric “Metri-Pack” connector. The ranges available
are 0-100, 300, 500, 1000, 2000, and 5000 PSIG for the 691201-x series and 0-50, 100, 300,
500 PSIA for the 691204-x series, all of which have an overload rating of 1.5 times full scale
without damage. The three wires from the transducer are: +5 volt excitation, +0.5 to 4.5 volt
output, and minus return. These three wires connect directly to the back of the Terminal
Module using cable assembly P/N 693008-x.
4.4 TEMPERATURE TRANSDUCERS - The temperature transducers, Altronic P/N 691202-300,
691203-300 with a temperature measurement range of +5 to 300
E
F and the 691212-450,
691213-450 with a temperature range of -40 to +450
E
F are packaged in a sealed, stainless
steel housing with a 5/8"-18 UNF threaded body, and a Packard Electric “Metri-Pack”
connector. During configuration the standard calibration for the 691202/203-300 sensor is
selected as "dEG1" and the standard calibration for the 691212/213-450 is selected by
choosing "dEG2". The three wires from the transducer are: +5 volt excitation, temperature
output voltage, and minus return. These wires connect directly to the Terminal Module using
cable assembly P/N 693008-x.
