gefran 55 Instructions

Main applications
• Timer
• Delay timer
GENERAL
The 55 is a timer with internally
generated frequency base.
The time range is selected using the
yellow thumbwheel switch according to
the positions:
A (9.99 sec),
B (99.9 sec),
C (999 sec).
Afterwards the time set is selected using
the numerical thumbwheel switches.
55
MULTIRANGE TIMER WITH DIGITAL SETTING
TECHNICAL DATA
O
UTPUT
Relay
5A, 250Vac cosϕ=1 (3,5A at cosϕ = 0,4)
P S
OWER UPPLY
- 24/48Vac ±10%, 50/60Hz, 6VA max.
- 110/220, 120/240Vac ±10%
- 24Vdc ±10%
50/60Hz, 3VA max.
A C
MBIENT ONDITIONS
Working temperature: 0...50°C
Storage temperature: -20...70°C
Humidity: 20...85%Ur non condensing
F
UNCTIONS
Timer start on power-on.
Repeatibility: ±1% of selected value at
nominal conditions (20°C and nominal
voltage value).
Accuracy, ±1% selected value.
Reset time, 200 msec.
W
EIGHT
300 g
Main features
• Three time ranges
• Two relay outputs
• Digital setting
M
Repairs must be carried out only by
trained and specialised personnel.
Remove the power to the instrument
before accessing the internal parts.
DO NOT clean the case with hydrocarbon
derivatives (trichlorethylene, petrol, etc.).
The use of such solvents can adversely
affect the mechanical reliability of the
instrument.
To clean the plastics case please use a
clean cloth with ethyl alcohol or water.
S
ERVICE
GEFRAN has a service department.
The guarantee excludes defects caused
by usage that does not conform to the
instructions.
6
AINTENANCE