--reset
reset()
defbuffer1.clear()

display.changescreen(display.SCREEN_USER_SWIPE)
display.settext(display.TEXT1, "GOST 28885-90 test")

Test_voltage=display.input.number("Enter a Test voltage", display.NFORMAT_PREFIX, 200)
Short_time=display.input.number("Enter a short time", display.NFORMAT_PREFIX, 14400)

display.settext(display.TEXT2, "Short capacitors")

--set up source function
smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 1
smu.source.level = 0
smu.source.delay = 0
smu.source.offmode = smu.OFFMODE_HIGHZ
smu.source.highc = smu.ON

smu.measure.func = smu.FUNC_DC_CURRENT
smu.measure.terminals = smu.TERMINALS_REAR
smu.measure.autorange = smu.ON
smu.measure.nplc = 1


--turn on output
smu.source.output = smu.ON

trigger.model.load("DurationLoop", Short_time)
trigger.model.initiate()
waitcomplete()

-------------------------------------------------------------

display.settext(display.TEXT2, "Charge to " .. Test_voltage .. "V and hold 5m")

smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 1e-1
smu.source.level = Test_voltage
smu.source.delay = 0

trigger.model.load("DurationLoop", 300)
trigger.model.initiate()
waitcomplete()

-------------------------------------------------------------

display.settext(display.TEXT2, "Discharge to 0V and hold 5s")

smu.source.func = smu.FUNC_DC_VOLTAGE
smu.source.ilimit.level = 0.1
smu.source.level = 0
smu.source.delay = 0
smu.source.offmode = smu.OFFMODE_HIGHZ

trigger.model.load("DurationLoop", 5)
trigger.model.initiate()
waitcomplete()

-------------------------------------------------------------

display.settext(display.TEXT2, "Release at 3m and check Voltage")

smu.source.output = smu.OFF
delay(180)

smu.measure.displaydigits = smu.DIGITS_6_5
smu.measure.func = smu.FUNC_DC_VOLTAGE
smu.measure.autorange = smu.ON
smu.measure.unit = smu.UNIT_VOLT
smu.measure.nplc = 1
smu.source.func = smu.FUNC_DC_CURRENT
smu.source.level = 0
smu.source.vlimit.level = 20

smu.source.output = smu.ON

--initiate 20 readings to prevent ringing (~1s)
trigger.model.load("SimpleLoop", 100)
defbuffer1.clear()
trigger.model.initiate()

--wait for complete
waitcomplete()

--calculating DA
display.settext(display.TEXT2, "DA=" .. (defbuffer1[50]/Test_voltage)*100 .. "%")

--turn off the output
smu.source.level = 0
smu.source.output = smu.OFF

beeper.beep(1, 2400)
beeper.beep(1, 5000)
beeper.beep(1, 2400)
beeper.beep(1, 5000)
beeper.beep(1, 2400)
beeper.beep(1, 5000)
beeper.beep(1, 2400)
beeper.beep(1, 5000)