Part Number MODEL989M

Digital Hygrothermometer

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Part Number
DEMIL
Shelf Life
UOM
NIIN
Part:
model989m
Demil:
No
Shelf Life:
UOM:
NIIN:
013824699

Part Information
System consists of a humidity/temp indicator w/digital display and humidity/temp probe; probe connected to display by wire; dew point temp 0 degrees c to 40 degrees c below ambient temp; outputs: dewpoint temp 0 to 1 volt for -40 to 60 degrees c, ambient temp 0 to 1 volt for -40 to 60 degrees c, relative humidi type 0 to 1 volt for 0 to 100 percent rh; measurement of air dewpoint achieved by opto-electronic detection of dew formed on an electrically cooled, solid gold mirror, the temp of mirror is continually monitored and when dew forms the temp is stored in memory; probe houses the dew forming mirror and optics, also carries another transducer for measuring ambient temp; operates and displays continuously while cycling through dewpoint determination every 1/2 to 2 minutes; item will be used to maintain accuracy of the following systems-t.O. 33k6-4-2024-1, p/n 31061222-001, t.O. 33k5-4-84-1 p/n's ct428-7, rh200, htab176

NSN
National Stock Number:
6685-01-382-4699 6685013824699
TXT
Description:
Digital Hygrothermometer
INC
INC
Item Name Code:
38844
MRC:
The minimum and maximum limits of temperature at which the item is rated for operation.AFGA
Operating Tempurature Range:
-20.0/+60.0 degrees celsius
MRC:
Indicates the type of measurement provided.BFHZ
Measurement Type:
Digital
MRC:
The minimum to maximum value which the item is capable of measuring.BHMW
Measurement Range:
+10.0/+100.0 percent relative humidity
MRC:
The amount of accuracy for which the scale is rated.BKCN
Scale Accuracy Rating:
Humidity accuracy +/- 2 percent rh, temp accuracy +/- 0.4 degrees f
MRC:
Describes the capabilities,intended use,and/or purpose for which the item is provided.FTLD
Functional Description:
The protimeter dewpoint meter uses analog and digital electronics to simplify accurate and stable hygrometric measurement; direct measurement of dewpoint temperature
MRC:
Literature and references available for information pertaining to the item.RDAL
Reference Data And Literature:
T.O. 33k1-1-100
MRC:
Indicates the relationship,such as construction,capabilities,and the like,of the item to a similar item.RTSE
Relationship To Similar Equipment:
Replaces the air force's current temp and humidity transfer standards used in pmel, p/n sa-760-a nsn 6625-01-144-1855 digital readout and p/n h5-3552-b (nsl) humidity probe

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