Pendulum CNT-90 - Calibration

Specifications
Calibration
Mode:
Closed case, menu-con-
trolled.
Calibration Input:
A
Password
ON or OFF
Protection:
Input Frequencies 1.0, 1.544, 2.048, 5.0 or 10.0
used for TB
MHz
Calibration:
Definition of Terms
Calibration Ad-
The maximum tolerated
justment
Toler-
deviation from the true 10
ance:
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
8-59
General
Specifications
Environmental Data
Class:
MIL-PRF-28800F, Class 3
Operat. Temp:
0 °C to +50 (+45)* °C
Storage Temp:
-40 °C to +71 °C, non-con-
densing, @ <12000 m
Humidity:
5-95 % @ 10-30 °C 5-75 % @
30-40 °C 5-45 % @ 40-50 (45)*
°C
4600 m
Max. Altitude:
Random and sinusoidal per
Vibration:
MIL-PRF-28800F, Class 3
Shock:
Half-sine 30G per
MIL-PRF-28800F; bench
handling
Transit Drop
Test:
Transport box tested according to
UN-D 1400 drop test program 1.
Heavy-duty transport case and
soft carrying case tested
according to MIL-PRF-28800F.
*CNT-91R only
Reliability:
Safety:
MTBF 30000 h, calculated
Designed and tested for
Measurement Category I,
Pollution Degree 2, in ac-
cordance with EN/IEC
61010-1:2001 and
CAN/CSA-C22.2 No.
61010-1-04 (incl. approval)
EMC:
EN 61326 (1997) A1 (1998),
increased test levels per EN
50082-2, Group 1, Class B, CE
8-57
USER MANUAL ● CNT 9x Series ● Rev.22 February 2020