The Programming mode allows the user to define

the following instrument parametem:

Present value

- Password for access to programming.........................0

- Decimal point position.....................................none

- Display scaling......................................0 to 1500

- Alarm Set point values......................................40

The normal measurement and control functions are not active during programming mode. The operator can exit the programming mode at any time by pressing the 'S' key. The unit will return to the measurement and control mode after 45 seconds have passed between pressing of any key.

During the programming sequence, the "PV' LED will flash to indicate you are in the programming mode.

Access to Programming (PAS)

Press the "S' key. The display will show 'PAS" for about 1 second. The and keys affect the displayed value up or down. The correct password must be displayed, then press the 'ENTER' key. The unit is shipped with a password of 'O'.

Programming a new password

If the correct password is entered, the 'PV', 'SPI", and 'SP2'

LEDs will flash. The display will show 'PAS' for 1 second, and and then the password will be displayed again.

To retain the password, press "ENTER' to pass to the next parameter. To change the password, press the or V keys until the desired password is displayed. Then press the "ENTER' key to proceed to the next parameter.

Decimal Point Selection (dP)

The display will show 'dP" for 1 second. The display will then show "1111' and the 'PV" LED will be flashing. Press the 'ENTER' key to pass to the next parameter.

 

Electrical Input Range (LoE and HiE)

The display Will indicate "LoE' (Low electrical input) for 1 second, then the stored value (.000) will be displayed.

To retain the stored value, press 'ENTER'. To increase or decrease the 'LoE', press the or V keys until the desired value is displayed then press 'ENTER'.

 

HiE" (High electrical input) will appear for 1 second, then the stored value (1.000) will be displayed. To retain this value, press 'ENTER'. To modify the 'HiE" value, use the and V keys. Press 'ENTER" to lock in the new value.

Display Scaling (Lo/Hi)

The Display will show 'Lo' for 1 second. This is the minimum displayed value corresponding to the input range. Our example would be 0. The stored value will be displayed. To retain the stored value, press 'ENTER'. To modify the value, use the and V keys to increase or decrease the value. Press 'ENTER' to lock in this new value and pass to the next parameter.

The Display will show 'Hi' for 1 second, then the stored value (1500) will be displayed. The value can be changed up or down by using the and V keys. Press 'ENTER' to lock it in ( this will make the readout correspond to "Ma leakage").

 

Programming the Set points

This is equipped with two programmable set points for the alarm relays and LED's on the front panel. The setting is relative to the span (defined by 'Lo' and 'Hi'), not the electrical input range.

Alarm Set Point #1 (SP)

The display will show 'SP" for 1 second. The 'SP1' LED will flash while you are programming the "SP1' values, and the 'PV' LED will stop flashing. The stored set point value is displayed,(40), and can be changed up or down by using the or V keys. Press 'ENTER' to lock in the value and to pass to the next parameter.

High and Low Alarm Level (uP/do)

The display will indicate 'uP'(Required for this application) signifying high alarm level. Use the and V keys to change the status from 'do' to 'uP' Press the 'ENTER' key to pass to the next parameter.

 

Hysteresis (HYS)

"HYS' will be displayed for 1 second. Hysteresis is the difference between the set point value (at which the alarm is enabled) and the value at which the alarm.is reset.

Hysteresis is selectable from 0% to 100.0% of the maximum display span. Use the and V keys to affect the value displayed, and press 'ENTER' to lock in the new Hysterisis value.

Time Delay(dEL)

The Time Delay is programmable for 0 to 99 seconds. This value indicates the delay before turning on the alarm after reaching the set point.

The unit will display 'dEL' for 1 second, and then display the stored value ( 2 seconds). To change the value, use the and V keys to increase or decrease the value. Press 'ENTER' to store the new value in memory.

Relay Status (nd/nE)

This is the relay status in the absence of an alarm condition. The instrument will display the stored value 'nE'(required for this application). It can be changed by pressing the or V key. will make the status Normally Energized ('nE), while the V key will make the status Normally Deenergized (nd'). Press 'ENTER' to store this setting in memory.

 

Set Point #2

This unit is equipped with 2 relays. the programming sequence will continue. The 'SP1' LED will turn off, and the 'SP2' LED will turn on and programing will proceed through 'SP' 'uP/do" 'HYS''dEL' and 'nd/nE' as the programming sequence for the second set point.

 

Exiting Programming Mode

The programming mode can be exited at any time by pressing the S' key.

 

The alarm set points can be displayed during normal operation by pressing the or V key. The 'SP1' LED will turn on, and the display will show set point #1. Press the key again, 'SP1' will turn off and 'SP2' will turn on, and set point #2 will be displayed. The display will stay on for 1 0 seconds, then revert to normal operation.