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5 - 8
Testing and Fault Finding
K0260 Issue No. 8
T
ABLE
5-2 S
YSTEM
S
CREEN
I
NFORMATION
Data Identifier
Function
Expected Display or Value
RPT Diagnostics
Ps/Altitude Sensor
RPT Diode [mV]
Temperature Compensation
400 (hot) ............. 800 (cold)
RPT Count
Value proportional to pressure
248,553 .............4,473,600
TEMP [c]
Ps channel (RPT) measured temperature
5°...... 60°C (over permitted ambient range)
PDCR Diagnostics
Qc/Airspeed Sensor
PDCR Vc [mV]
Temperature Compensation
980 ............. 2100
PDCR Vd [mV]
Value proportional tp pressure
0 to 140 mV (always active)
Valve Diagnostics
Pressure Output and Control
Ps Output
Ps Port isolation valve state
L:L <—> H:H (open) —:— (closed)
Pt Output
Pt Port isolation valve state
L:L <—> H:H (open) —:— (closed)
Ground
Ground pressure sense valve state
—:— (closed, normal), H:H (at ground)
Qc Zero
Qc auto-zero valve state
—:— (closed, normal), H:H (at ground, auto-zero)
Pressure Ps
Ps pressure valve drive level
0 (Leak/Measure), varying to 9999 (control)
Vacuum Ps
Ps vacuum valve drive level
0 (Leak/Measure), varying to 9999 (control)
Pressure Pt
Pt pressure valve drive level
0 (Leak/Measure), varying to 9999 (control)
Vacuum Pt
Pt vacuum valve drive level
0 (Leak/Measure), varying to 9999 (control)
Pump Diagnostics
Controller Source Pressures
Pressure
Pressure pump drive state
POV (Pressure On Flow) or blank (pump off)
Vacuum
Vacuum pump drive state
VOF (Vacuum On Flow) or blank (pump off)
Processed information
Major Measurement/Control Parameters
Ps
Ps Channel Pressure, mbar absolute
0 to 1355
Qc
Qc Channel Pressure, mbar differential
-1355 to 2490
Pt
Pt Channel Pressure, mbar absolute
0 to 3845
ground
Ambient pressure estimate
800 to 1300
Ps VOL
System Ps volume estimate
0.125 (min) varies with connected system
Pt VOL
System Pt volume estimate
0.125 (min) varies with connected system
Characterisation
Control Valve Data
PWM PPS VB
Valve bias (VB) calculated in real time
Variable with temperature
PWM PPS ERR
Determined during manufacture or service operations
Constant
PWM VPS VB
Valve bias (VB) calculated in real time
Variable with temperature
PWM VPS ERR
Determined during manufacture or service operations
Constant
PWM PPT VB
Valve bias (VB) calculated in real time
Variable with temperature
PWM PPT ERR
Determined during manufacture or service operation
Constant
PWM VPT VB
Valve bias (VB) calculated in real time
Variable with temperature
PWM VPT ERR
Determined during manufacture or service operations
Constant
Tertiary Information
Other system control states
CAL:
Calibration lock switch state
Disabled (normal)
DUMP:
Pump pressure vent state
Shut (normal)
Содержание Druck ADTS 505
Страница 1: ...GE Measurement Control Druck ADTS 505 Air Data Test Set User Manual K0260 ...
Страница 14: ...xii K0260 Issue No 8 Druck ADTS 505 User Manual ...
Страница 54: ...3 26 Operation K0260 Issue No 8 ...
Страница 55: ...Druck ADTS 505 User Manual 3 27 K0260 Issue No 8 3 ...
Страница 56: ...3 28 Operation K0260 Issue No 8 ...
Страница 66: ...5 4 Testing and Fault Finding K0260 Issue No 8 FIGURE 5 1 FAULT FINDING CHART ...
Страница 80: ...5 18 Testing and Fault Finding K0260 Issue No 8 Intentionally left blank ...
Страница 124: ...6 44 Reference and Specification K0260 Issue No 8 Intentionally left blank ...