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PROPER TIP
FORCE IS VERY IMPORTANT IN THE FORMATION OF A RESISTANCE WELD
ACCUSTART EASILY CONNECTS TO THE
PRESSURE
SWITCH INPUT TERMINALS ON ANY BRAND RESISTANCE
WELDING CONTROL
| *
Tip Force Too Low |
* Tip Force Too
High |
| Excessive Heat |
Inadequate Heat |
| High Expulsion (sparks) |
Brittle Welds |
| Large Poor Looking Welds |
Limited Nugget Penetration |
| Drastic Reduction in Electrode Life |
Tip
Force should be reached before the 1st half
cycle of weld current flows... and this Tip Force should not rise above
the necessary
force during the weld. See
the Unitrol Technical paper on Tip
Force for a through discussion.
The
UNITROL ACCUSTART using the latest microcomputer
technology contains a differential pressure transducer. As it subtracts
back pressure from
working pressure from the welder's air cylinder, the effects of flow
control or internal
air cylinder leakage will be detected and prevent welding until proper
TIP FORCE has been
reached.
|
MODEL
|
DESCRIPTION
|
DIMENSIONS
W X H X D
|
| 9580
|
Waits
until differential air pressure equals value shown in the SET PRESSURE
window of the system. At that time, a relay contact is closed to
satisfy the PRESSURE SWITCH circuit in the existing welding control. |
8" x 3½" x 5" |
| 9581
|
Waits
until differential air pressure equals value shown in the SET PRESSURE
window of
the system. At that time, a relay contact is closed to satisfy the
PRESSURE
SWITCH circuit in the existing welding control. The unit also compares
differential air pressure to the value
shown in the HIGH LIMIT window of the system. If the pressure exceeds
this
value, a second relay contact closes for 1 second while an alarm
sounds.
Simultaneously, an indicator light glows and remains on until the next
weld
starts. |
8" x 3½" x 5" |
| 9582
|
All
the
functions of the 9581 ACCUSTART plus a built in
electronic AIR PRESSURE
SETTING SYSTEM that automatically sets the pressure to match the value
shown in
the SET PRESSURE window. Unit comes complete with a remote 1/2" air
regulator and air pressure gauge. |
11½" x 3½" x 5" |
Technical
Specifications
- Voltage
115 VAC, 50/60 Hz (230 volts available at no additional charge)
- Relay
contact rating 120 VAC @ .3 amperes, 30 VDC @ 1 ampere
- Warranty
- 1 year
ACCUSTART
comes complete with:
- 36 "
cable for connection to welding control
- keylock switch to prevent setting changes
- (2) 1/4" poly tubing x 1/4" NPT male fittings
- (1) 36" long 1/4" green poly tubing
- (1) 36" long 1/4" red poly tubing
- instruction/installation booklet
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