|
DYNATIME® DC Series:
Subminiature
Hour Meters
|
 |
|
The DYNATIME
DC hour meter was developed to meet the difficult requirements
of most military and aerospace applications. They provide
a wide range of supply voltage options and are packaged
in a hermetically sealed miniature enclosure. This rugged
design meets or exceeds an array of tough environmental
specifications including shock, vibration, and temperature.
In
addition, DYNATIME Hour
Meters have been approved to MIL-M-7793. A variety of
mounting configurations are also available.
See Standard
Cases & Mounts and Pin
Headers information.
Cleared for Public Domain Release
by Directorate of Freedom of Information and Security
(DFOISR), dated April 17, 2000, reference number 00-S-1235
|
 |
|
| . |
Rugged Design |
| • |
Hermetically Sealed |
| • |
Qualified to MIL-M-7793* |
| • |
Low Voltage Models
Available |
| |
*See the Military
Cross Reference for more military qualified
models. |
|
|
| Meters meet or exceed
applicable requirements of MIL-M-7793 M7793/1,/2,/5
and MS21341 A & B. Special ratings and configurations
are also available. |
|
Transient Protection: MIL-STD-704A, 80 &
600 V (Models 16 & D16) |
| Insulation
Resistance: MIL-STD-202, Method 302, Condition
B |
| Ripple
Protection: MIL-STD-704A, para. 5.2.2, 5.2.21
& Fig. 7 (models 16, D16) |
| Dielectric:
500 VRS @ 80, 000 ft., 600 VRMS @ sea level |
| Accuracy:
0.1% over temperature/ voltage range |
|
|
|
Case:
Copper Nickel or Brass with flat painted finish.
E and F mounts are nickel-plated case with flat black
painted face. Max.
case length: Short version: 1.094 in.; long version: 2.082
in. |
| Flange:
Steel or Brass |
| Terminals:
Solder Hook |
| Weight:
0.4 ounces without mount. 0.6 ounces maximum with C flange
|
Numerals:
.035" wide, .078" high.
Hour digits are white on black. Tenths are red on white.
|
| |
| Operating
Temperature Range: -65 to +125°C |
| Shock:
MIL-STD-202, Method 213, Condition I |
| Vibration:
MIL-STD-202, Method 204, Condition D |
ORDERING INFORMATION
When
ordering, show model number first (D), then nominal voltage,
case type, maximum hours (4 or 5 digit), mount type and
mount setback desired. If this is a special part, customer's
modification number will be added at the end of the ordering
number. This order chart lists standard features. Other
ratings and configuration are also available. Example:
D16-C-8-C-E-136 |
Example:
D16-C-8-C-E-136
D
- 16 - C
- 8 - C
- E - 136
|
Case
Length
|
Voltage
Nominal
|
Case
Type
|
Maximum
Hours
4 Digit / 5 Digit
|
Mount Type
|
Mount
Setback
|
Popular
Factory Codes
|
|
D
Short
|
16 =
10 to 34 VDC |
B = 4
Digit Round |
3 = 999.9/N/A |
A = no
mount |
A = Flush |
Code |
Description |
|
(
)* Long
|
46 = 5
VDC
|
C = 4
Digit Square
|
8 = 9999/9999.9 |
Others available
|
|
1 |
Rotated
90° Type C, C7, V, W Mount
|
|
|
Others
available
|
D = 4
Digit Square (Side-Read)
|
9 = N/A/99999
|
|
|
14 |
4-40
Clinch Nuts, For Type C Mount |
|
|
|
G = 5
Digit Rectangle
|
|
|
|
16 |
Tin-plate
front Mt. & Type C Mount |
|
|
|
|
|
|
|
136 |
Tin plate front mount Type C (M7793/1 &
/2), C7, V & W |
| *
Omit "D" for long case |
Standard
Cases & Mounts
For
Setback Dimensions see "X" Dimension for Military
Series
For
proper installation, please follow these instructions.
Standard
Cases & Mounts for M7793
M7793/8
M7793/9
M7793/10
Standard
& Straight Pin Headers
NOTE:
Dim. in ( ) are mm. Tolerances: Decimals: ± .010 (0,25) Fractions:±
1/64
| This
PDF contains a printable version of the hard copy
catalog page. |
 |
L-3-EDI
ETI-DC.pdf |
|
Note: Viewing and printing PDF files requires the
free Adobe Acrobat Reader program. You can download
Acrobat Reader from Adobe's
web site. |
|
|
