6.6 Data Format
A. Data is returned to the RS232 port by the 901-PH in the following
format when requested by a PC with the ?D command (section 6.5):
DDDDDDUUssssTTTTTToCm<cr>
or B. Data is sent to the RS232 port by the 901-PH in the following format
when it is sent by the 901-PH using the Send function (section 6.2):
DDDDDDUUssssTTTTTToCm<cr><lf>
where: DDDDDD is the pH or mV data. Maximum 6 characters, right
justified. A “ ∗∗ ” is sent instead of the decimal point if the
reading is not calibrated.
UU is the unit description, either pH or mV, left justified.
ssss is two spaces.
TTTTTT is the Temperature data. Maximum 6 characters, right
justified. A “ ∗∗ ” is sent instead of the decimal point if the
reading is not calibrated.
oCm is the Temperature unit description, left justified.
oC is sent for real temperature data.
oCm is sent for manual temperature compensation data.
Notes:
1. Data corresponds to the Mode selected (ie pH or mV).
2. pH or mV data and units are replaced by spaces in Temperature Mode.
3. +OVR or –OVR is sent when the Data is over-range.
4. BUSY<cr> is sent when the 901-PH is Busy (ie in calibration, Baud Rate
mode, Send rate mode etc.) or when data is not available.
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