FREQUENCY DIVIDER, PULSE DIVIDER
type : DFL35
• Voltage or dry contact input
• Division factor selectable
from 2 up to 4096
• Isolated floating contact
200Hz max output frequency
• Galvanic isolation
• Application
counter frequency adaptation, flow, speed,
pulse distribution, signal shaping,
signal level adaptation,...
• AC or DC power supply. 5Vdc to 400Vac
The frequency divider DFL35 lowers the frequency of a signal provide by counter, flow meter, or other pulse
generator, and thus enable theirs acquisition by slower system.
DESCRIPTION:
Frequency divider (without pulse loss) made for pulse weight
adaptation between pulse generator (flow meter, energy meter,
…) and total counters.
Division factor selectable by DIP switch (12 possibility) :
/2 - /4 - /8 - /16 - /32 - /64
/128 - /256 - /512 - /1024 - /2048 - /4096.
Special version with other factor on request.
Input max frequency: 100 kHz
Output max frequency: 250Hz
Synoptic
GENERAL CHARACTERISTIC:
- LED showing the output contact state ( LED on = contact close)
- tropicalization varnish,
- protection class IP20
- input circuit protection,
- galvanic isolation input / output,
- DIN rail mounting,
- wiring on screw terminal (2.5 mm² wire gauge)
Output signal : (example with division factor of 2 and 4)
Version and order code:
• DFL35 :
Selectable division factor (2 to 4096)
(input: 24V typical, switching threshold: 10V)
• DFL35/3 :
Division factor fixed to 3
(input: 24 V typical, switching threshold: 10V)
• Option -LV :
Low voltage version
(input: 5V typical, switching threshold: 2V)
FREQUENCY DIVIDER
E1
90 days accuracy (20 °C +/- 2 °C)
DATASHEET DOWNLOADED ON WWW.LOREME.FR
INPUT
TYPE
Voltage
Switching threshold
Impedance
Contact
POWER SUPPLY
RANGE
0V / 24V nominal
0V / 5V for "LV" option
10V
2V for "LV" option
> 50Kohms
dry contact
Internal 20Vdc polarization
AUXILIARY
Supply for input contact
20Vdc (filtering)
OUTPUT
Type
Isolated Closed Contact
Breaking voltage max
Max current
Breaking capacity
Close time
Open time
Minimum output frequency
Maximum output frequency
TECHNICAL SPECIFICATIONS
static relay
1500 Vac
250 VCA, 300 VCC
200 mA
30 VA
< 1mS
< 1mS
0Hz
250Hz
(define at order)
230 Vac 50-60 Hz +/- 10 %, 2.3 VA
20 to 70 Vac-dc, 2 VA
80 to 265 Vac-dc, 2 VA
5 - 18Vdc or 9 - 30Vdc, 2 W
Reverse polarity protected
RECOMMENDED OPERATING CONDITIONS
Operating temperature
Storage temperature
humidity
Dielectric strength (input/supply/output)
Protection
Weight
-10 °C to 60 °C
-20 °C to +85 °C
85 % (not condensing)
1500 Vrms continuous
IP20
210 g
Electromagnetic compatibility
Generic standards: NFEN50081-2 /NFEN50082-2
EN55011
EN61000-4-2
EN61000-4-4
EN61000-4-5
EN61000-4-8
EN61000-4-11
meet
no influence
< +/- 5 %
< +/- 5 %
no influence
< +/- 5 %
groupe 1 / classe A
B EN61000-4-3 < +/- 5 %
B EN61000-4-6 < +/- 10 %
B
A
B
DBT
2006/95/CE
A
A
RACCORDEMENT ET ENCOMBREMENT:
Division factor selected with internal
DIP switch.
(remove the right cover to access the
DIP switch.)
Be sure that the device is not powered
before any operations.
Note: only one switch should be ON
E 2 LOREME 12, rue des Potiers d'Etain - 57071 Metz  03.87.76.32.51 - Fax 03.87.76.32.52 - Email: Commercial@Loreme.fr - Technique@Loreme.fr
On account of the constant technologies and standards evolution, LOREME keeps the possibility to modify the specifications of the included products without notice.