DEWE-CLOCK0 pages

DEWE-CLOCK

GPS or IRIG synchronization for DEWETRON instruments
t Synchronization of DEWETRON instruments to absolute time

Dedicated Instruments

t No drift when locked to IRIG or GPS signal
t Very low drift even with IRIG or GPS signal disconnected
tInput:
tGPS
t IRIG time code A or B, AM or DC
tOutput:
t AD converter clock up to 10 MHz

t DEWE-ORION DSA-series clock

t IRIG time code B, DC
DEWE-CLOCK

Scan clock:
ORION-DSA-SYNC:
Power supply:
Operation temperature:
Storage temperature:
Humidity:
Dimensions (W x D x H):
Weight:

Instruments

IRIG code A or B; AM or DC
0.5 Vp-p to 10 Vp-p
3:1 ±10 %
DC Level Shift TTL / CMOS compatible
20 kΩ
150 VDC
1 µs
IRIG code B, DC
None
< 1 µs (delay to GPS PPS)

Front-ends

IRIG input specications
Supported codes:
Compatibility (AM code):
Ratio (AM):
Compatibility (DC code):
Impedance:
Isolation
Trigger accuracy
IRIG output specications
Supported codes
Isoltation
Accuracy
GPS specications
General
PPS accuracy
Refreshrate
Position accuracy
Autonomous
Differential
Trigger accuracy
System specications
Clock accuracy locked
Clock accuracy unlocked
Input
Output:
Trigger:

12 channel, L1 frequency receiver
100 ns
1 Hz
Horizontal CEP
3.0 m
1.0 m
1 µs
without drift
< 10 ppm
SMA for GPS antenna, BNC for IRIG I/O
Clock and Trigger for DAQ-systems on DB9 connector
PPS (pulse per second), rising edge on time,
75 ms high time, TTL level compatible
10 Hz to 10 MHz, rising edge synchronized,
50 % duty cycle, TTL level compatible
LVDS compatible on RJ45
USB powered, max. current 500 mA
-5 °C to +70 °C
-20 °C to +85 °C
10 % to 80 %; non condensing
133 x 104 x 43 mm (5.23 x 4.1 x 1.7 in.)
approx. 330 g (0.72 lb)

Vibration test:
EN 600068-2-6
Shape:
Sine
Frequency:
10 Hz to 150 Hz
Power spectral density:
1 m/s² / Hz from 10 – 200 Hz
Duration:
30 minutes per axis
Vibration test:
EN 60721-3-2 Class 2M2
Shape
Random
Frequency range
10 - 200 Hz
Power spectral density
1 m/s² / Hz from 10 – 200 Hz
Duration
30 minutes per axis
Shock:
EN 60068-2-27
Shape:
Half-sine
Acceleration amplitude:
15 g
Duration:
11 ms
Test in 3 axis, 3 shocks in each axis and direction

Signal Conditioning

Components

Software

DEWE2

DEWE-CLOCK

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