Model: 6681R/676/AF

Digital Reado Electronic Counter

Special Features:

Mfr name pm 6681r frequency reference/counter/calibrator; options 676 refer to 2.7 ghz input channel c and 300 mhz range w/ gpib-interface and time/frequency software, timeview pc software

Properties:

Overall Length
15.600 inches
Overall Height
3.400 inches
Overall Width
12.400 inches
Current Type
Ac
Frequency Rating
Between 45.0 hertz and 440.0 hertz
Voltage Rating
Between 90.0 volts and 265.0 volts
Mounting Method
Bench
Measurement Type
Frequency and time interval
Frequency Range
+0.000/+300.000 megahertz
Sensitivity Rating
Inputs a and b 20 mv rms: <100 mhz, 25 mv rms: 100 mhz to 200 mhz, 40 mv rms: 200 mhz to 250 mhz, 60 mv rms: >250 mhz
Display Type
Liquid crystal
Display Digit Quantity
12
Display Positioned Decimal Point
Provided
Phase
Single
NSN
6625-01-509-5162
Part Number
6681R/676/AF
Description
Counter,electronic,digital Reado
CAGE

An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.

Part 6681R/676/AF NSN 6625-01-509-5162

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
26835
FIIG:
T297-A
Concept No.:
App. Key:
AA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
A
ESD:
ESD:
MMAC:
RH
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061700
UFC:
34580
LTL:
RATING VARIABLE
LCL:
100.0
WCC:
738
TCC:
3
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 9030908030
  • SITC: 87479
  • End Use: Measuring, testing, control instruments
  • NAICS: 334515
  • USDA: 1

Freight Class: Parts and accessories of articles of schedule b subheading 9030.39

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