Critical Environment Technologies PDC Series Especificaciones descargar pdf (Pagina 21)

7.2 INPUT CODE DESCRIPTIONS, CONT’D…..

3212 “ INPUT ADDRESS”: This code is used to initiate and configure the system. First ensure all external devices such as DST

transmitters, CAN network bridges, external relay boards or external analog output boards are installed and wired. To achieve this, enter

“3212” and the display will look like the box below. Use the “1” or “3” button to scroll down or up to set the desired ID code number then push

the “2” button to scroll to the next channel. Alternatively, the user can simply press the “Auto Cal” push-button on each DST in order of their

placement on the system. The ID number will increment to the next ID number. The ID number showing when the user presses the auto cal

button will become the new ID number of that particular DST. Once the user has set or changed the ID numbers for all channels, they must

set the last channel ID number to “Done” by repeatedly pressing the “1” button, then press “2” button to complete this menu function. The dis-

play will then indicate “Reinitializing Finished”.

1311 “ RECONFIGURE INPUT ADDRESS”: This code is used to change the and configure the system. First ensure all external devic-

es such as DST transmitters, CAN network bridges, external relay boards or external analog output boards are installed and wired. To achieve

this, enter “1311” and the display will look like the box below. Use the “1” or “3” button to scroll down or up to set the desired ID code number

then push the “2” button to scroll to the next channel. Once the user has set or changed the ID numbers for all channels, they must set the last

channel ID number to “Done” by repeatedly pressing the “1” button, then press “2” button to complete this menu function. The display will then

indicate “Reinitializing Finished”.

3213 “ANALOG CHANNEL 4-20 MA OR VOLTS”: This code allows the user to select the Analog sensor type Voltage or Current being

used on a particular channel. To achieve this, enter “3213” Use the “1” or “3” button to scroll down or up through the selections provided then

push the “2” button to scroll to the next channel.

1231 “GAS SENSOR TYPE”: This code allows the user to select the type of sensor being used on a particular channel. The decimal

and units of measurement are automatically selected for each sensor type. To achieve this, enter “1231” and the LCD will look like the box

below. Use the “1” or “3” button to scroll down or up through the selections provided then push the “2” button to scroll to the next channel.

Once the user has selected the sensor type, the software will load the default measurement range and alarm set point values into the configu-

ration settings. This function applies to the following applications:

a) If remote analog transmitters (AST) are connected to the system, they must be installed in the order in which they are set up on the PDC

system so the 4 - 20 mA incoming signal from each transmitter is displayed as the correct value. If the AST transmitters have been installed in

a different order than what was factory programmed, the installer or user must change the gas sensor type for each channel to match the order

they were installed in the field.

b) If the installer uses code 3212 to realign the remote DST digital transmitters with the PDC and he does not push the white button on the DST

in the proper order, they overwrite the factory ID programmed into each DST. Code 1231 must be used to change the gas sensor type for each

channel.

1223 “SET SENSOR DIRECTION”: This code allows the user to change the sensor direction if a sensor is being changed in an exist-

ing DST. Example changing from a positive response sensor (CO) to a negative response sensor (NO2). This MUST be changed when per-

forming this function with then two sensors indicated. The same function also applies to other sensors. Consult the CETCI factory service de-

partment if you must make this change in the field. To achieve this, input code ‘1223” and the LCD indicates “CH 001, Menu 1223, Polarity and

POS or NEG (depending on which sensor was supplied from the factory)”. Use “1”button to change to “NEG: and “3” button to change to

“POS”. Press “2” button to accept the change. The LCD indicates “Wait” while it writes the new value to the system memory, then indicates

‘Finished”.

3312 “SET ZERO MASK NUMBER”: Contact Factory

3322 “FAULT LEVEL CUT OFF”: This code allows the user to select the current cut off value below which the PDC will indicate a

fault condition. The cut off limit is a count value between 0 and 255. To determine the desired count value, use the

following formula.

Count value = desired current value X 51 Example: 3.1 mA X 51 = 158 count value. Once the desired count value has been deter-

mined, enter code “3322” and the LCD will look like the box below. Use button “1” to decrement the value and button “3” to increment the val-

ue. Push button “2” to accept the value and return to normal scrolling.

CH 001 Sens Type

CO el 0 ppm

CH 001 Menu 3212

ID Code 9

CH 001 Menu 1223

Polarity POS

CH 001Menu 3322

Fault Lvl 0

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 33 34

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