Philips PM2519 - 3.2. ADJUSTING THE PM 2519 WITH THE AID OF A CONTROLLER (for PM 2519;51 only)

3.2.
3-3
ADJUSTING THE PM 2519 WITH THE AiD OF A CONTROLLER (for PM 2519/51 only}
The calibration mode can be called via the JEC-bus. To use this feature, a program string must be sent to the
PM 2519. It is device programming, so the message consists of a header, a body and a separator.
ST4416
840629
DEC (195)
SEPARATOR
On receipt of a character which is equivalent to decimal 195, on most controllers programmed as CHR$(195},
the calibration mode is entered. The same effect is afforded when short-circuiting TP1001 and TP1002 in the
manual mode.
The body (range) is a decimal character which selects the range to be calibrated (see table).
After entering the calibration mode, an execute command (X1 or GET) must be given. This has to be done
before a new listen address is sent otherwise the calibration mode will be left.
Example: To calibrate the 100 mV range CHR$(195)+''1X1" must be sent.
100 mV
1 Vv
20 mA
2A" * lead in A-bus
20 mA
1000 ohm
0°C
If the calibration mode is entered, the output data is e.g. VDC 100.0c mV. A range is calibrated, when the
PM 2519/51 will respond in his output data with e.g. VDC 100.0r mV. If the supplied signal is not the right
one the PM 2519/51 responds with VDC 100.0F mV or if the supplied signal is unstable it responds with
100.0u mV. If a range has been selected, which does not need to be calibrated the PM 2519/51 does not give
output data!
Program example on P2000C
10 tEC INIT
20 PRINT “Select mV function and supply 100 mV”
30 IEC PRINT #22, CHR$ (195) + 1X1": REM enter calibration mode, range 1 and execute
40 !EC END