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Howell Laboratories, Inc.

P. O. Box 389, 188 Harrison Rd., Bridgton Maine 04009 USA
(207) 647-3327 (888) 744-8359 FAX (207) 647-8273 contracts@howelllabs.com

- An Employee-Owned Company -
Certified to ISO 9001:2000

Parts for Model 7149 Mk II
Dew Point Monitor/Alarm

NOTE: This list does not include hardware items such as bolts, nuts, washers, and O-rings. The manufacturer uses stainless steel hardware in standard U. S. sizes, and MIL-SPEC O-rings.
Howell Laboratories, Inc. is CAGE 22501.

HLI Designation: 7149 Mk II
HLI Drawing No. 7149
Electrical Schematic: 7243
Technical Manual TM7149-MII-00

Part Description NSN HLI Part No. Quantity per Unit

Frame

7234-G501 1

Electrical Panel Assembly

7006-G502 1
Lamp-Test Switch 5930-01-285-6665 3917-03 1
Lamp, Red 6210-01-280-3356 3907-G503 1
Lamp, White 6210-01-170-7327 3907-G501 1
Lamp Bulb 3907-06 4 ref
Toggle Switch 5930-00-642-9188 3042-02 2
Switchplate 3042-03 2
Circuit Board, Humidity Alarm 4994-G502 1
Transformer 4863-01 2
Fuse 3043-12 2
Flasher 5945-01-193-0058 4901 1
Potentiometer 4705-04-2 1
Potentiometer Dial 4705-04-1 1
Dew Point Meter with Label 5639-G502 1
EMI Filter 6777-01 1
Audible Alarm 6797-01 1
Resistor RCR42G682JS 1

Humidity Sensor Housing Assembly

7242-G501 1
Sensor Housing 7219-01 1
Dew Point Sample Valve 7218-01 1
O-Ring (under dew point sample valve) 5330-00-167-5172 M83248/2-904 ref
O-Ring (dew point sample valve outlet) 5330-00-166-1081 M83248/2-011 ref
Blank Tailpiece 5170 1
Humidity Sensor 3905-G504 1
O-Ring (under humidity sensor) M83248/2-116 ref
Plug, Sensor 7220-02 1
O-Ring (under sensor plug) M83248/2-116 ref
Sensor Protector 55950-2 ref
Inlet Fitting, 3/8" x 1/2" 37° Flare 1
Outlet Fitting, 3/8" x 1/2" 37° Swivel Flare 1
O-Ring (under inlet & outlet fittings) M83248/2-906 ref

Last updated: 03/19/2008
Webmaster: Al Friend
© 2002-2008 Howell Laboratories, Inc. All rights reserved.