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PRODUCTS |
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TIMER BOARDS |
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What is dust collector & how
timer Board Interfaces it ?
The pulse jet design have group of bags enclosed in
housing. Dirty air enters the housing and travels through
the filter bags. Filtered air is vented to the atmosphere.
High pressure (4-6 kg/sq cm) air pulse dislodges the
dust, which falls into the hopper for disposal or recovered
for use. Cleaning cycle is initiated from remote timer
(Continuous Cycle) or pressure switch (on demand pulsing)
Signal actuates diaphragm solenoid valves which permits
momentary jet of high pressure air to each venturi and
filter bag. Only one row of bags is cleaned at pre-selected
intervals, while the system is in operation.
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| Timer Board Operating
Modes.... |
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Continuous
Cycle Mode : |
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The boards have two operating
modes available for different applications. Starting
with the most vital mode, it is capable of operating
in a continuous cleaning cycle. This can be started
by putting a jumper (shorting link) between the
pressure switch input to the terminal strip connection.
Two setup parameters control operation: off time,
on time. on Time and off time specifically deal
with the solenoid on time and the time interval
between the end of the on pulse and the start
of the next.
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On
Demand Mode (Air save mode) : |
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Demand mode operation can be
configured using the high limit and low limit
inputs. A simple on-off system can be setup with
a single pressure switch connected to the high
limit input. Better control can be achieved with
a high and low limit switch set such as is provided
in the Photohelic® (DWYER Make) pressure gage.
In this on demand mode, on time and off time may
be programmed to define the cleaning cycle. Meaning
there by Pulsing will start when DP (Delta "P")
is high & continue till it reaches low set
point.
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No.
of Channels Selection : |
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A jumper (Flying lead wire) connector
is provided to select the last channel used. Place
the jumper on the pins corresponding to the last
channel to be used in the Operation .
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Off
Time and On Time Setup : |
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Off Time defines the period of
time between solenoid activations when no channels
are enabled. This value may be set between 2 second
and 120 seconds. On Time defines the solenoid
Firing time. The value may be set between 20 m/sec
and 200 m/sec . If adjustments are made while
the system is in operation, the new setting will
take effect in the following next Channel solenoid
operation. Do not use excessive force to rotate
the potentiometers. This will damage the Timer
unit.
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Timer cards
The use of micro controllers in in bag house sequencers
has seen a change in emphasis from unit cost considerations
alone back towards emission performance & bag house
maintenances. This recent change has been brought about
by several factors including better automation provisions,
dust collection accountability / process reporting as
well as fulfillments of certification requirements.
A small, but vital, item of Bag House equipment.
controls the sequencing of solenoid valves. The duration
of the Valve opening can be varied between 20 -200 milliseconds,
and the time interval between the activation is adjustable
from 2- 60 Seconds. The controllers are micro controller
design, developed over a number of years through extensive
and exacting site testing All controllers are fully
(100%) tested before being sent to site and they have
been proved reliable over the whole field of dust control
applications. Only the best quality electronic components
are used, so that the reliability of the whole is to
a very high standard Consequently on site failures all
which have occurred within first week of operation are
less than 0. 5 %.
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Timer Boards STANDARD
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Listing : Yes |
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Power : 230v / 110v,
50 / 60Hz |
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Pulse freq. : 2-120
sec (int. time) [Different Timings On request] |
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Pulse Duration : 20-200
m sec. [Different Timings On request] |
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Output Glands : PG
9 for solenoids--- Input Glands : PG13.5 for power
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On Demand Pulsing
: Standard on all models |
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Red Clock Led : Yes
Power On Led : Yes |
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Feed back relay :
Yes |
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Sequence Function
Indicators Leds : Yes |
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Manual Pulsing for
Testing : Yes |
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Conformal Coat: Yes
(Loctite) |
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Significant Features
of all Timer Boards .... |
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Ex-stock Available
Timer Boards 5, 10, 15, 20 outputs |
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Delivery with in 48
hrs for Quantities up to 25 Boards |
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Proven product for
last 20 years |
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Excellent performance,
Extremely low failure rates |
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100% testing of all
Sequential Timers On Simulated Air Headers with
all types of Famous make Solenoids |
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Pricing : See Price
List |
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Click to See here Terms
& Conditions of sale , International sale Terms
& Conditions of sale |
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