Burkert Type 8622 - Manual (Page 4)

SPECIFICA TIONS
Step Two
Supply voltage: 14-36 VDC (type 8622-D..)
120 / 240 VAC, 50 - 60 Hz. (type 8622-A..)
Consumption: .25 amps
Sensor supply: 13.5 VDC @ 100 mA
Relay type: Isolated single pole double throw (SPDT)
relay, Form C
Relay load: Switching voltage
240 VAC/150VDC max. (8622-D..)
380 VAC/150VDC max. (8622-A..)
Switching current
6 Amps (non inductive load) (8622-D..)
12 Amps (non inductive load) (8622-A..
)
Relay mode: Selectable, NO or NC
Time delay: 0 to 60 seconds
LED indication: Sensor, relay & power status
Fail safety: Power fail-safe
Enclosure rating: NEMA 4X / IP65
Enclosure material: Polypropylene (U.L. 94 VO)
Enclosure rotation: 300
°
swivel base
Temperature range:F: -40
°
to 158
°
C: -40
°
to 70
°
Conduit connection:1/2" NPT
Make a Fail-Safe System:
Design a fail-safe system that accommodates the possibility of relay or power failure. If power is cut off to the controller, it will de-energize the relay. Make sure
that the de-energized state of the relay is the safe state in your process. For example, if controller power is lost, a pump filling a tank will turn off if it is connected
to the Normally Open side of the relay.
While the internal relay is reliable, over the course of time relay failure is possible in two modes: under a heavy load the contacts may be “welded” or stuck into
the energized position, or corrosion may build up on a contact so that it will not complete the circuit when it should. In critical applications, redundant backup
systems and alarms must be used in addition to the primary system. Such backup systems should use different sensor technologies where possible.
While this manual offers some examples and suggestions to help explain the operation of Bürkert products, such examples are for information only and are not
intended as a complete guide to installing any specific system.
Dimensions
GND AC AC
R
P
DELAY
Rela
y
Com NO NC
I (ON/OFF) L (ON/OFF)
Relay LED
(red)
Input A LED
(amber)
Input
Terminal
Delay
Power LED
(green)
Invert
Relay
Terminal
AC Input
STATUS
Delay INVERT
- +
SENSOR RELA
Y
PO
WER
Faceplate Cover
(8622-A..):
AC version
(8622-D..):
DC version
120 VAC, 50-60 Hz, 0.25 Amp.
240 VAC, 50-60 Hz, 0.25 Amp.
Always replace this safety cover after service
Model: 8622-A..
S/N: XXXXXX
Power supply
120/240 VAC,50-60 Hz,
0.25 Amps
Maximum relay Rating
250 VAc, 12 A, 1/2 Hp
DELAY
Side wiew
DC version:
Invert Switch
Delay
Relay
- +
Input
Terminals
NC
Com
NO
DC
Power Input
Relay
Terminal
Invert Delay
Relay
Latch/ Invert Logic
Time Delay
Sensor
Input 1
Power
Supply
NC
NO
C
(+)
(-)
S
AC
AC
GND
Top wiew
AC version:
Relay
Latch/ Invert Logic
Time Delay
Sensor
Input 1
Power
Supply
NC
NO
C
(+)
(-)
S
DC
DC
DC version
AC version
120 mm
81.7 mm
25.5 mm
17.8
mm
71.5
mm
F L O W L I N E F L O W L I N E
95
mm
56.7 mm
25.5 mm
17.8
mm
71.5
mm
F L O W L I N E F L O W L I N E