TM 75053
AN/GMM1( )
1. NOMENCLATURE: Radiosonde Baseline Check Set
Control power supply.
AN/ GMM1 ( ).
Psychrometer ML224.
2. TYPE CLASSIFICATION: Standard A.
8. SET, SYSTEM, FACILITY, AND CONFIGURATION
APPLICATIONS: This set is used in a system with Rawin
3. SECURITY REQUIREMENTS: Unclassified.
Set AN/GMD1( ) and Radiosonde Recorder AN/TMQ
5( ).
4. PRIMARY USE OR CONCEPT OF EMPLOYMENT:
Used for preflight testing of radiosonde sets.
9. ADDITIONAL EQUIPMENT REQUIRED AND AUX-
5. BRIEF FUNCTIONAL DESCRIPTION: Radiosonde
ILIARY EQUIPMENT:
a. Additional Equipment.
Baseline Check Set AN/GMM1( ) consists of a tempera-
ture-humidity calibration chamber and a control unit for
Radiosonde Set AN/AMT4( ) or Radiosonde Set
the regulation of the humidity and temperature under
AN/AMT12.
Recorder, Radiosonde AN/TMQ5( ).
controlled conditions for preflight testing of radiosondes.
The set provides a complete baseline check of the temper-
Rawin Set AN/GMD1( ).
ature and humidity elements of Radiosonde Set AN/AMT
Power source of 110 to 115 vac, 60 Hz, single-phase.
4( ) and Radiosonde Set AN/AMT12 before their release
b. Auxiliary Equipment.
for atmospheric measurements. Radiosonde Baseline Check
TS1348/GMM1A.
Set AN/GMM1( ) indicates whether or not the radio-
10. TOOLS AND TEST EQUIPMENT:
sonde being tested is operating properly in all respects.
a. Tools.
The check is made in conjunction with Rawin Set AN/
Tool Equipment TE113.
GMD1( ) and Radiosonde Recorder AN/TMQ5( ).
b. Test Equipment.
6. TECHNICAL CHARACTERISTICS:
Multimeter TS352/U.
Power requirements _ _ __ _ _ _ 110 to 115 vac, 60 Hz
11. REFERENCE DATA AND LITERATURE:
single phase.
TM 11666021912, 20P,
AN/GMM1, 1A
Fan, centrifugal:
35 P,34 _ _ _ _ _ _ _ _ _ _ _ _
Motor type _ _ _ _ _ _ _ _ _ _ _ Capacitor induction.
TM 11662536615_ _ _ _ _ TS352/U
Horsepower _ _ _ _ _ _ _ _ _ _ _ 1/50.
TM 11666022810 _ _ _ _ _ _ AN/AMT4( )
Speed _ _ _ _ _ _ _ _ _ _ __ _ _ 3,300 rpm.
TM 11666022010 _ _ _ _ _ _ AN/AMT12( )
Power requirements _ _ 115 vac, 60 Hz
TM 11666020612, 20P,
single phase.
35, 35P _ _ _ _ _ _ _ _ _ _ _ AN/GMD1( )
Heater:
TM 11666022212 _ _ _ _ _ ML224
Type _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Resistance element
12. REPAIR PARTS SUPPORT CAPABILITY: To 1974
strip.
Full support.
Resistance _ _ _ _ _ _ _ _ _ _ _ 66.1 ohms.
Power _ _ _ _ _ _ _ _ _ _ _ _ _ _ 200 w.
13. TRAINING REQUIREMENTS :
Control power supply motor:
Operator MOS 93E20, 93F20.
Type _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Synchronous.
Maintenance MOS 35B20, 35D20.
Speed _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 240 rpm.
Power input requirements
115 vac, 60 Hz, single-
14. TYPICAL BASIS OF ISSUE:
phase.
TOE
Allowance
Dimensions:
6186G _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
Carrying case _ _ _ _ _ _ _ _ 17 1/8 in. high, 26 in.
6201G _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
deep, 35 in. long.
6302H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _1
Temperature-humidity
6626G _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
chamber _ _ _ _ _ _ __ _ _ _ _ 22 in. high, 14 in. deep,
6676G _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2
19 in. long.
6701H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
Control power supply __ _ 5 1/8 in. high, 6 in. deep,
6716H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
7 in. long.
7100H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
17100H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
Weight:
37100H _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1
Carrying case _ _ _ _ _ _ _ _ 65 lb.
3961G _ _ _ __ _ _ _ _ _ _ _ _ __ _ _ _ _ _ _ _ 1
Temperature-humidity
TA
chamber _ _ _ _ _ _ _ _ _ _ _ _ 20 lb.
62
Control power supply
_ _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ __
18
61 lb.
Psychrometer:
50366 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 12
Type _ _ _ __ _ _ _ __ _ _ _ _ Hand sling.
50771 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2
8010 _ _ _ _ _ _ _ _ _ _ _ _ 1
Thermometer (2) _ _ _ _ _ _ _ Self-indicating, mer-
cury thermal element.
15. PRICE DATA:
Temperature range _ __ _ _ _ 37 C to +46 C.
a. Major item _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
||content||
,960.00
Thermometer scales _ _ _ _ 0 C subdivision.
b. Repair parts (1-year cost based on
Dimensions _ _ _ _ _ _ _ _ __ 11 15/16 in. long,
100 equipments) _ _ _ _ _ _ _ _ _ _ _ _ _ ,400.00
1 15/16 in. deep.
16. ITEM REPLACED: None.
7. MAJOR COMPONENTS:
Chamber, temperature-humidity.
17. REMARKS: None.
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