Instruction Manual

PTB 200 18 (28)
Digital Barometers
SSD/Operating Manual 24th February 1993 PTB200-O0284-1.1
SLEEP Setting and resetting the sleep mode
SLEEP ON<cr>
SLEEP OFF<cr>
The SLEEP command is used to set and reset the software controlled
sleep mode which cuts down the power consumption by over 60 %. In
the sleep mode the current consumption is below 10 mA when no out-
put is required and about 25 mA during output. By activating the sleep
mode the barometer automatically falls asleep when no output is
required. Even then the barometer is ready to accept commands and
execute them. However, because the barometer needs to wake up, the
time from a command to output is a bit longer in SLEEP mode than in
normal mode.
? List of basic software settings
?<cr>
Entering ? outputs a list of basic software settings, e.g.
Baud Parity Data Stop 1200 E 7 1
Output format \PPPP.PP\ \uuuu\\r\n
Pressure unit hPa
Temperature unit ’C
Sending mode STOP
Address 0
Sleep mode OFF
Measurement time 64 x 25 milliseconds
Filter OFF / FAST
Output interval 0 s
Calibration day code 92261
Offset drift comp. ON
Offset drift correction -0.056 hPa
Multipoint correction ON
Reading Correction
499.64 0.024
599.79 0.013
699.92 0.017
800.04 0.021
900.18 0 017
1000.33 0.023
1100.43 0.027