ASHE STL-96 User manual

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

OPERATION MANUAL

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

STL-96

INTRODUCTION

The ASHE Stream Selector Model STL-96is a microcontroller based Instrument for the accurate process

control of a multi-stream system in Analytical applications. The STL-96Stream Selector has a 20

character by 4 line back-lit OLED display which showsthe process status and various setting parameters

for application specific timing and control of the six Streams. The STL-96 instrument provides a total of

18 nos. of potential freerelay contacts with LED indications on the front panel.

Besides the above, the instrument provides six nos. of 4 to 20mA retransmission analog outputs

corresponding to each stream.The instrument providesSample and Hold feature for these 4 to 20mA

retransmission outputs.

The STL-96Stream Selector offers two modes of operation, namely the AUTO and MANUAL modes. The

operational logic is as under:

In the Manual mode, the operator can select a particular Stream number.

In the Auto mode, there are two sub-modes of operation, viz., the Timer mode and Pulse

mode.

In the Timer mode, the selected Stream Number is active for the set time.

In the Pulse mode, the number of Streams selected based on the Pulse input.

DEFINITION OF TERMS

1. RUN MODE

After Power Supply is switched on, in the RUN mode of operation, the Stream Selector will execute the

desired sequence of the Streams. The selected Stream output relay gets energized and the

corresponding Low Alarm, High Alarm and 4 to 20mAAnalogOutputgets activated. The RUN LED on the

front panel will light up to indicate the instrument is in RUN mode.

The status of outputs is as follows: -

OUTPUT

STATUS

STREAM OUTPUT

Activated

4-20mA OUTPUT

Activated

LOW ALARM

Activated

HIGH ALARM

Activated

2. STOP MODE

When the Operator presses theSTOP key from the front panel, the microcontroller stopsthe process at

the current stream and deactivatesthe selected relay output with latched 4-20mA Output.The STOP

LED on the front panel will light up to indicate the instrument is in STOP mode.

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

OUTPUT

STATUS

STREAM OUTPUT

Deactivated

4-20mA OUTPUT

Latched

LOW ALARM

Deactivated

HIGH ALARM

Deactivated

3. PAUSE MODE

When the PAUSEkey is pressedfrom the front panel, the microcontroller holdsthe process at the

current Stream with all outputs latched on their current status.

The PAUSE LED on the front panel will light up to indicate the instrument is in PAUSEmode.

OUTPUT

STATUS

STREAM OUTPUT

Latched

4-20mA OUTPUT

Latched

LOW ALARM

Latched

HIGH ALARM

Latched

4. MANUAL MODE

The Stream Selector instrument STL-96 can be operated manually by means of the front selection key.

The MANUAL MODE is available in both modes of operation, viz.: Timer andPulse Modes. When the

instrument is in MANUAL MODE, the Manual LED on the front panel will light up.

The desired stream has to be selected by user.

The OLED display will indicate as follows: -

The first line of the display shows which Stream Number is active and also the process status.

The second line of the display shows the time in seconds for which the selected Stream is active. This is

not active in Manual Mode.

The third line of the display shows process variable with respect to input signal to the instrument.

The fourth line of the display shows the mode of operation selected.

The following is the sequence in the MANUAL mode of operation:

1) Press STOP key if the instrument is in RUN mode.

2) Press INC key to select desiredStream number (1 to 6).

3) After selecting the desiredStream, press START key to start the process.

4) The corresponding Relay output will activate with potential free contacts.

The Low alarm and High alarm will function corresponding to the process input.

5) The 4-20mA DC output of the corresponding Stream will be active on the terminals.

The 4-20mA DC outputs of the other Streamsget latched to their last values.

6) Also, the Low alarm and High alarm of other Streams will get latched to their last status.

7) For next Stream, the same sequence from Point no. 1 will be applicable.

STREAM : 01 RUN

TIME : 0001

INPUT : 0500 ppm

MODE : Manual

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

5. AUTO MODE

The instrument STL-96 can be operated automatically by means of the key on the front keypad. When

the instrument is in AUTO MODE, the AUTO LED on the front panel will glow.

The Stream selection is done by the internal microcontroller as per user settings.

The AUTO MODE is available in both modes of operation, viz: Timer and Pulse Modes.

a. TIMER MODE

The ASHE Stream Selector instrument can be operated in Timer Mode.

In the Setting mode, the operator can select the number ofStreams to be run at Power ON.

The particular undesired Stream can be skipped in the Skip menu.For the unskippedStreams,

the timer value can be set in seconds.

The following sequence is to be carried out in the Timer Auto mode: -

1) Press the RUN key to start the process.

2) The process will start from the first unskippedStream.

3) The relay for the current Stream gets energized.

4) The display shows the remaining time for the current Stream.

5) When the timer value becomes zero, the instrument switches over to the next

unskippedStream.

6) This cycle goes on until the last unskippedStream and then goes back to the first stream.

b. PULSE MODE

The ASHE Stream Selector instrument can also be operated in Pulse Mode.

In the Setting mode, the operator can select the number ofStreams to be run at Power ON.

The particular undesired Stream can be skipped in the Skip Menu.For the unskipped streams,

the timer value can be set in seconds.

The following sequence is to be carried out in the Pulse auto Mode: -

1) Press the RUN key to start the process.

2) The process will start from the first unskippedStream.

3) The relay for the current Stream gets energized.

4) The display shows the sample time for the current Stream.

5) The instrument waits for a synchronizing pulse from the Analyzer.

6) As soon as the +12V pulse is received, the instrument stops sampling of the current

Stream.

7) The instrument switches over to next Stream at the falling edge of the synchronizing pulse.

8) This cycle goes on until the last unskippedStream and then goes back to the first stream.

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

6. PAGE MODE

The PAGEMODE provides the operator with the last updated process values for all Streams on one

screen.The process values of all channels can be viewed by pressing thePAGE/INC key on the front

panel.

The OLED display will appear as follows: -

INSTALLATION

The instrument should first be mounted in an appropriate cut-out on the panel [See TECHNICAL

SPECIFICATIONS]. All interconnections to the instrument should be made with strong multi-strand wire of

the order 2.5 sq.mm. The ends of the wires should be properly ferruled and suitable lugs must be used

for effective termination.

The cables carrying the input signal from theAnalyzer should be routed separately and properly

isolated from the power line cables, to prevent any electromagnetic interference in the input signal

readings from the mains power line. The instrument should be earthed to a proper grounding point

before connecting the Power Supply. The voltage between the Earth and Neutral terminals should be

negligible (Approx. 1 V AC). The Relay contacts are potential free and may be powered as per

customer’s requirements with the desired voltage.

Further, the instrument is manufactured using selected high-grade components which guarantee it’s

functionality and long operational life. The instrument carries the specified performance warranty

against manufacturing defects and workmanship defects.

OPERATION & SETTINGS

The front panel of the Stream Selector is as shown below:

1) 0100

2) 0200

3) SKIP

4) SKIP

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

The front panel of the Stream Selector includes the following features:-

1) A 20 character x 4-linealphanumeric OLED Display (with backlighting)

2) Six nos. of touch-sensitive “Capsense”keys.

3) Six nos. Orange LEDS to indicate status of the Stream Outputs.

4) Six nos. Red LEDS to indicate status of the Low Alarms.

5) Six nos. Red LEDS to indicate status of the High Alarms.

6) Three nos. Red LEDS to show the status of the Auto, Manual & Pause modes

7) Two LEDs of Red & Green to show status of RUN (Green) and STOP (Red).

CONTROL KEYS

The instrument has sixtouch-sensitive “Capsense” keys on the front panel, the functions of which are

described below:

This key is used for all instrument settings and calibration, as follows:-

Input Calibration, Input Range, Skipping of Streams, Alarms Settings (Low Alarm & High

Alarm), Retransmission outputcalibration (4-20mA DC) and Operation Mode Setting.

In the “running”mode, this key is used to switch over to the next stream,

and

In the “setting”mode, this key is used to shift the cursor.

This key is an alternating key between PAGE/INCREMENT options.

In the “running”mode, this key is used to show the input status of all Streams together.

In the “setting”mode, this key is used to increment the value of the selected digit.

This key is used to select alternatively between AUTO/MANUAL modes of operation.

This key is used to PAUSE the process. The microcontroller will stop the process,while

keeping the relay status unchanged. Also the same key is used to escape from

parameter setting mode.

This key is used to toggle the START and STOP process.

SETTINGS OF PARAMETERS

POWER ON SCREEN

The ASHE STL-96operates on universal AC power supply of 90 to 270VAC, 50Hz.

When the instrument is powered ON, the display will go blank with only backlight for a period of 5

seconds.

This time has been provided for power supply stabilizationwithin the instrument.

The Power ON Screen on the OLED Displayas indicated for five secondsshall be as follows –

MODE

SHIFT

PAGE

INC

START

STOP

AUTO

MANUAL

PAUSE

ESC

ASHE

STREAM SELECTOR

MODEL NO. STL-96

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

This shows thatthe microcontrollerhas initialized properly.

The power ON screen shows the manufacturer’s name, the product name and the model number.

PROCESS SCREEN

After the Power ON screen, the instrument will go to Process Screen as follows:

The first line of the display shows which Stream Number is active and also the process status.

The second line of the display shows the time in seconds for which the selected Stream is active. This is

not active in Manual Mode.

The third line of the display shows process variable with respect to input signal to the instrument.

The fourth line of the display shows the mode of operation selected.

PARAMETER SETTING MODE SCREEN

Press MODE key to enter into Parameter Setting mode.

After pressing MODE key the display will show the following screen –

Enter the number for themode selected (01 to 06) using the INC key and press MODE key again to

confirm the selected parameter setting mode.

If there is no key process for 10 seconds, then the display will time-out and return to the process

screen.

INPUT CALIBRATION MODE

The ASHE Stream Selector Model STL-96 is factory calibrated. As such, the instrument doesnot require

any recalibration at the customer’s side. So do not enter into Input Calibration Mode unless the

instrument requires recalibration.

Before entering into Input Calibration Mode, ensure that an accurate analog signal of 4 to 20mA DC is

connected to the instrument at the input terminals with correct polarity.

Enter the number 01 into Select Menu by using INC key in the PARAMETER SETTING MODE

SCREEN.PressMODE key to enter into Input Calibration Mode.

The OLED Display indicates as under :

Password

0000

1) I/P CAL 2) I/P RANGE

3) SKIP 4) ALARMS

5) ReTrans 6) SETTINGS

Select Menu : 00

STREAM: 01 RUN

TIME : 0001

INPUT : 0500 ppm

MODE : Timer - Auto

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

Press theSHIFT key to move the cursor to the last digit.

Enter the Password 0004 by using INC key and then press MODE key. After pressing MODE key the

OLED Display will show as follows :-

Feed 4mA DC Current from a reliable 4 to 20mA source to the instrument. The display will show the

corresponding ADC Count corresponding to 4mA input current.

Press theAUTO/MANUAL key to save the ZERO calibration point of 4-20mA DC Input.

The OLED Display will show the message DATA SAVED to acknowledge this setting.

Press MODE key to move on to the Span Calibration point.After pressing theMODE key, the OLED

Display will show:

Feed 20mA DC Current from 4 to 20mA source to the instrument. The display will show the

corresponding ADC count corresponding to 20 mA DC input current.

Press theAUTO/MANUAL key to save the SPAN calibration point of 4-20mA DC Input.The OLED Display

will show the message “DATA SAVED”to acknowledge this setting.

This will complete the input signal 4-20mA DC calibration of the instrument.Press theMODE key to exit

from Input Calibration Mode.

After pressing theMODE key, the OLED Display will return to PROCESS SCREEN.

INPUT RANGE MODE: -

The ASHE Stream Selector Model STL-96has the facility to change the resolution and range of the

displayed process value.

Enter 4-ma

00123

DATA SAVED

Enter 20-ma

00123

DATA SAVED

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

Enter the number 02 into the Select Menu by using INC key in the PARAMETER SETTING MODE

SCREEN.

Press theMODE key to enter into Input Range Mode.After pressing theMODE key, the OLED Display

shows :

Press theSHIFT key to move the cursor to the last digit.Enter the Password 0004 by using theINC key

and then press MODE key to confirm. After pressing MODE key the OLED Display will show

The customer can set the resolution and display range for each stream individually.

Use theINCkey to select the desired decimal point for display process value.

Press theMODE key to proceed further. After pressing theMODE key, the microcontroller will save the

settings. Setthe decimal point for stream number 01 and move to the low range setting.

Use theSHIFT key to shift the cursor to desired digit and theINC key to change the desired digit from 0

to 9.

Press theMODE key to save the lower range for Stream no. 01 and move to high range setting.

Use theSHIFT key to shift cursor to desired digit and INC key to change the desired digit from 0 to 9.

Press theMODE key to save higher range for stream no. 01 and move to the next parameter.

After pressing MODE key the OLED Display will show:

Password

0000

Set Resolution 01

1234

Set Low range 01

0000

Set High range 01

1000

Set Resolution 02

1234

ASHE CONTROLS PRIVATE LIMITED.

STREAM SELECTOR STL-96

Operation Manual

In the same sequential process, the following parameters for each Stream can be set :

Resolution (Decimal Point)for Streams 1 to 6.

Low Range for Streams 1 to 6.

High Range for Streams 1 to 6.

On completion of the settings for Stream 6, this completesthe settings and calibration process for all

the streams.

After pressing theMODE key, the OLED Display will return to the normal PROCESS SCREEN.

STREAM SKIP MODE

The ASHE Stream Selector Model STL-96offers the facility to SKIP a particular stream from the process.

Also one can set the Sampling Time of a Stream from 0001 to 9999 seconds which is usefulduring

operation in Timer Mode.

Enter the number 03 into the Select Menu by using theINC key in the PARAMETER SETTING

MODESCREEN.

Press theMODE key to enter into Stream Skip Mode.

After pressing theMODE key, the OLED Display shows:

Press theSHIFT key to move cursor to the last digit.Enter Password 0004 by using theINC key and press

MODE key to confirm.

After pressing MODE key the OLED Display will show:

The customer can set the resolution and display ranges for each stream individually.

Use INC key to select desired Skip setting by selectingYES/NOfor the particular Stream number.

Press theMODE key to proceed further. After pressing MODE key, the microcontroller will save the set

Skip setting for stream no. 01 and move to Sample Time setting.

If the operator selects SKIPfor a particular stream Number, then the display will directly move to SKIP

setting of the next Stream number instead of Sample Time setting.

Password

0000

Skip channel 01

Set Sample time 01

0005

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