Closed case, menu-con-
trolled.
Input Frequen-
cies used for TB
Calibration Ad-
justment Toler-
ance:
deviation from the true 10
MHz frequency after
calibration. If the timebase
frequency does not exceed
the tolerance limits at the
moment of calibration, an
adjustment is not necessary.
Total Uncertainty:
The total possible deviation
from the true 10 MHz
frequency under influence of
frequency drift due to aging
and ambient temperature
variations versus the
reference temperature. The
operating temperature range
and the calibration interval are
part of this specification.
See also timebase specifications on page 8-15.
Specifications
Environmental Data
5-95 % @ 10-30 °C
5-75 % @ 30-40 °C
Random and sinusoidal per
MIL-PRF-28800F, Class 3
Half-sine 30G per
MIL-PRF-28800F; bench
handling
Transport box tested according
to UN-D 1400 drop test program
1. Heavy-duty transport case
and soft carrying case tested
according to
MTBF 30000 h, calculated
Designed and tested for
Measurement Category I,
Pollution Degree 2, in ac-
cordance with EN/IEC
61010-1:20
01 and
CAN/CSA-C22.2 No.
61010-1-04 (incl. approval)
EN 61326 (1997) A1 (1998),
increased test levels per EN
50082-2, Group 1, Class B, CE
Line Voltage:
90-265 V
RMS
, 45-440 Hz
USER MANUAL ● CNT 9x Series ● Rev.22 February 2020