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The Distributor

Instrument Meter Specialties, Inc.
Phones:1- 800-926-3837   1-818-841-2417   
FAX: 1-818-841-2379
 We accept: Visa - MasterCard
                            American Express 


A & M
(Formerly)
Weston
A & M Ruggedized Meters  - MIL-M-10304 - 4½" - 250° 


4½" - 250°
Click for Drill Plan

  Model 443 (250°) AC Rectifier Type 
Model 445 (250°) DC Self Shielding

Standard Ranges

Models

Terminal Resistance
200  µa 445 1,600 Ohms
1 mA 445 180 Ohms
5 to 1000mA 445 Special
1 to 10 ADC 
(Self Contained)		 445 Special
Over 10 ADC 445 100mV- Shunt Rated
1 to 300 VDC 
(Self Contained)		 445 1,000 Ohms/Volt
300 to 800 VDC 
(External Resistor)		 445 1,000 Ohms/Volt
10 to 300 VAC Rectified 445 1,000 Ohms/Volt
300 to 500 VAC Rectified
(External Resistor)		 445 1,000 Ohms/Volt

General Information

General Specifications & Drawings
     A&M Ruggedized Meters conform to the requirements of MIL-M-10304.  
     A&M Instrument can identify and supply Meters to National stock numbers (NSN): Classes 1430, 4935, 5840, 6115,6645, 6665,and 6685. In addition A&M can supply Meters to Defense Agency Specification Prints for the US Army, US Navy, and US Air Force.
     Ruggedized meters are ideal for use in field communications or test equipment where severe environmental conditions are encountered.  In industrial applications where moisture, extreme temperature or vibration may be a problem.
     The expanded scale technique of eliminating the unused portion of the scale and expanding the selected range to the full spread of the scale can easily be applied to these Ruggedized Meters.
     Accurate readings (0.5%) or better with improved resolution and readability are now available for adverse environments.  Expanded scale meters are available as Voltmeters, Ammeters, and Frequency Meters.
 Movement: DC - Self Shielding Pivot and Jewel Suspension with Spring Backed Jewels 
Case/Finish: Steel cadmium/zinc plate, chromate dip.
Front/Finish: Diecast / Semi-Gloss Black
Hardware: Mounting hardware provided.
Mounting: Conforms to Military Specifications
MIL-M-10304E.
Pointer: Knife Edge
Sealing: Watertight Standard Neoprene "O" Ring
Terminals:1/4-28 Brass Stud (Nuts, Washers,  Solder Lugs Provided) 
Accuracy: 1% DC - 2% AC Rectified
Scale Length: Models 2432 & 2452, 3.95"inches
(250°
Window: Tempered Glass with Zero Corrector

 

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Phone...1-800-926-3837....1-818-841-2417
FAX.... 1-818-841-2379


We Accept Visa  -  MasterCard  -  American Express

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