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Model T940 User Manual
Publication No. 980938 Rev. K
DR9 Driver/Receiver Board H-12
Astronics Test Systems
Environmental
Temperature
Operating: 0° C to 45° C
Storage: -40° C to 70° C
Humidity
0° C to 10° C: Not controlled
10° C to 30° C: 5% to 95% ±5% RH
30° C to 40° C: 5% to 75% ±5% RH
40° C to 50° C: 5% to 55% ±5% RH
Altitude
10,000 ft
Cooling Required
(10°C Rise; 1 DR9)
Max: 10.3 lps @ 1.5 mmH
2
0
Typ.: 8.0 lps @ 1.1 mmH
2
0
Cooling Required
(10°C Rise; 2 DR9s)
Max: 19.5 lps @ 4.6 mmH
2
0
Typ.: 13 lps @ 2.2 mmH
2
0
Front Panel Current
Requirements (channels
unloaded) (per DR3)
V+: 3.8 A max.; 2.9 A typ. @ 21.5 V
V-: 4.3 A max.; 3.4 A typ. @ -10.5 V
MTBF (ground benign)
DR9: 145,933 hours
T940: 180,885 hours
Power Converter: 540,040 hours
T940-DR9: 70,261 hours
T940-DR9-DR9: 47,427 hours
Dimensions
23 x 114 x 294 mm
EMC (Council Directive
89/336/EEC)
Emission: EN61326-1: 2006, Class A
Immunity: EN61326-1: 2006, Table 1
Designed to Meet – Testing in Progress
Safety (Low Voltage Directive
73/23/EEC)
BS EN61010-1: 2010
Designed to Meet – Testing in Progress