General Information - Fluke PM6669 Operator's Manual

AM Tolerance:
98%, minimum signal must exceed mini-
mum operating input voltage requirement
Impedance:
50Ω nominal, VSWR <2:1
Maximum Voltage Without Damage:
load protection with PIN diodes.
Ext Reference Input
The input automatically detects when a suitable external
reference signal is connected. The use of an external ref-
erence signal is indicated on the display.
10 MHz ±0.1 MHz
Input Frequency:
Coupling:
AC
Sensitivity:
500 mV
RMS
Input Impedance:
approx. 300Ω at 10 MHz
Max Input Voltage:
15 V

General Information

Power Requirements
Line Voltage:
115 or 230 V
46 to 440 Hz, (<20 VA incl. all options).
Safety:
in accordance with IEC publication 1010-1, and
CSA 22.2 No.231.
Line Interference:
below VDE 0871 B and MIL STD
461.
Battery Unit:
See PM 9605 option.
Dimensions and Weight
Width:
186 mm
Height:
88 mm
Depth:
270 mm
Weight,
net: 2.1 kg, shipping:3.0 kg
Cabinet:
The counter is housed in a metal cabinet, to
minimize electro-magnetic interference and achieve
good mechanical stability.
SPECIFICATIONS
12 V , over-
RMS
RMS
15%;
RMS
Environmental Conditions
Temperature,
Operating:
0°C to +50°C
Storing:
-40°C to +70°C
Altitude,
Operating:
5000 m (53.3 kN/m
Storing:
15000 m (15.2 kN/m
Humidity,
Operating:
10% to 90% RH, no condensation
Storing:
5% to 95% RH
Vibration Test:
According to IEC 68Fc
Bump Test:
According to IEC 68Eb
Handling Test:
According to IEC 68Ec
Display
Read Out:
9 digit LCD display with unit indication.
MHz, kHz, Hz, mHz, ks, s, ms, µs, ns,
Unit Indication:
M, k, m, µ,and n.
GATE Indicator:
Indicates that the counter is busy
measuring.
REMOTE Indicator:
Indicates when control over the
counter is taken over by an installed GPIB interface
PM 9604.
Cursor:
Indicates selected measuring function, selected
Measuring-time, input triggering, display hold and
whether an external reference frequency is in use.
Time Base (Crystal Oscillator)
Choice of:
–
Uncompensated crystal oscillator (order no
PM 6669/.1.)
–
MTCXO, i.e. Mathematically Temperature Compen-
sated Crystal Oscillator (order no PM 6669/.3.). The
MTCXO can be ordered separately for later upgrading
of the counter (option PM 9607).
MTCXO Working Principle:
crystal is measured. The built-in microprocessor calcu-
lates the frequency deviation for that particular tempera-
ture from a stored table. The measuring result is mathe-
PM 6669 - OPERATORS MANUAL
Page: 37
2
)
2
)
The temperature of the