6600-NG User’s Manual
125-9110A
Page 7
SECTION 1 : INTRODUCTION
The model 6600-NG is a high accuracy automated pressure controller, with three independent pressure
outputs, specifically designed for controlling air data parameters such as altitude, airspeed, Mach and climb.
The three independent outputs of Pt, Ps2 and Ps1 makes the 6600-NG ideal for testing aircraft with AOA/
AOS probes. This instrument can also be used to control pressures in units of inHg, mbar, psi, mmHg and
kpa. The 6600-NG is equipped with internal pressure and vacuum pumps. The Remote unit is used to
interface with the Main unit. The small size of the Remote unit allows it to be used in the cockpit of an
aircraft.
The 6600-NG has three high accuracy transducers that measure pressure in the range of 1 to 42 inHg absolute
on the Ps1 and Ps2 outputs, and 0 to 30 inHg differential on the Pt output. These transducers are designed to
accurately measure the pressure of dry air over an ambient temperature range of -40
o
C to 80
o
C. The high
accuracy of the Ps1 and Ps2 transducers makes the 6600-NG fully RVSM compliant.
The 6600-NG allows the user to control altitude in feet or meters, climb in feet per minute or meters per
second. Airspeed can be controlled in knots, mach, km/hr and mph. Airspeed-rate can be also be controlled
in these units. The 6600-NG also allows the user to control EPR on the Pt output.
The model 6600-NG features programmable limits on altitude, airspeed, airspeed rate, mach number, climb
rate and Differential pressure (between Ps2 and Ps1). These limits are checked during data entry and thereby
prohibit entry of erroneous target values. These limits are also checked continuously during operation, and if
any of these is exceeded, the unit automatically takes abortive action.
The user has the ability to program into the 6600-NG a profile of set-points to be controlled in a sequence.
Once such a profile has been setup, the user can command the unit to move from one set-point to the next
simply by using the Up-arrow key. Up to 50 points can be stored in one profile. The 6600-NG can store up to
10 such profiles in non-volatile memory at any one time.
Calibration of the unit is required only once a year. This process is the only scheduled maintenance function
required on the 6600-NG.
The standard version of the model 6600-NG operates on AC power and comes with an RS232 interface.
Options include an internal battery which lasts up to 8 hours, internal heaters which allow the unit to operate
down to -40
o
C, and an altimeter-encoder interface.
The 6600-NG has built-in Wi-Fi capability which allows for wireless remote operation using an iPad.
