Page 39 - Bürkert

Solenoid Valve Timer Units

Type 1078-2
and 1077-2
Time interval from 0.5sec to 10hr
1078-1 / 1078-2 • Programmable alone or using separate

operating unit
• Various switching functions
• Safety function with Type 1078-2

Type 1078-1

(Figure Types 1078-2 and 1077-2 mounted
on solenoid valve - assembly example)

Type 1078-1 is simply programmed by DIP switches and potentiometers Envelope Dimensions [mm] (see datasheet for details)
and incorporates four different switching functions. It mounts directly
onto Bürkert solenoid valves using the same three prong connection. This
unit is perfect for simple tasks like compressor blowdown where reliability A B C
is required. 90 32.6 42.5
Type 1078-2, which has eight different switching functions, is operated
by a two button programmer (Type 1077-2) with a small digital display.
As changes are only possible via the programmer the unit is safely locked
when it is removed. Multiple timers can simply be programmed as the last
settings always remain in Type 1077-2. B
A
Technical Data
C
Time range 0.5 s-10 s up to 0.5 h-10 h
Display LED for power supply voltage and switching status
Adjustment 1078-1 DIP-switches, precision adjustment of response
times via potentiometers
Adjustment 1078-2 Two buttons via 1077-2 programmer (not included) Switching functions
Switching functions Type 1078-1 A-D ON
Type 1078-2 A-H Power OFF
Body material Polyamide Functions
Operating voltages See ordering chart Cycler A
Voltage tolerance ±10% t t
Power consumption Max. 1.5 W on off
Cycler inverted B
Ingress protection IP65 (NEMA4)
Plug connection Integrated cable plug acc. to DIN EN 175301-803, t off t on
Form A Switch-on impulse C
Switching load (Imax) 2 A at supply voltage 12 DC. t t - ∞
1.5 A at supply voltage 24-48 V/50-60 Hz and DC on off
Electrical connection 5-pin terminal strip in housing, cable gland, Switch-on delay D
up to 1.5 mm² wire, cable Ø 6-7 mm, t off t - ∞
on
rotatable by 90° Cycler with adjustable E
Cable outlet 4 x 90º positioning switch-on pulse
Working temperature -10 ºC to +60 ºC t on t off
range Cycler, time-delayed F
Influence of temperature ±5 % of full scale time range t off t on
Influence of voltage ±1 % of full scale time range
Pulse generator, time-delayed G
Resolution (Type 1078-2) Range up to 199 s - 10 ms
Range up to 199 min - 1 s t off t on
Range up to 99 h - 1 min Pulse generator, H
inverted and time-delayed
Additional functions Binary inputs for external triggering t t t
(Type 1078-2) on off on
1077-2 Display 4.5 digit 7 segment LCD
1077-2 Adjustment Two buttons Options
1077-2 Body material Polyamide • Unit for max. time 100 h (option NA15)
1077-2 Ingress protection IP65 (with valve)
• 110-230 V/50-60 Hz

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