Operating instructions

9. Communication with external data acquisition system (option) page 95
Mercury Instruments UT-3000-E_V2.11.docx 31.07.12
Analytical Technologies
Inquiry: <STX>;C;Z;V;<CRC>;<ETX> C = control
Z = zero-check
V = value (= read zero-check value)
Answer: <STX>;C;V;conc;<CRC>;<ETX> V = value
conc = meas. Concentration in ng/m³
Example: <STX>;C;Z;V;19197;<ETX> 19197 = CRC16
<STX>;C;V;1.1;22683;<ETX> 22683 = CRC16
1.1 = concentration
Inquiry: <STX>;C;C;<CRC>;<ETX> C = control
C = continue sampling
Answer: <STX>;C;C;<CRC>;<ETX> continue sampling
Example: <STX>;C;C;36336;<ETX> 36336 = CRC16
<STX>;C;C;36336;<ETX> continue sampling
For span check and zero check the „rising time“ and the „falling time“ have to be considered. The „rising time“ and
the „falling time“ according to the set sample volume of the UT3000 are shown in the table below.
In the following the maximum times are shown:
ZERO:
Sample volume: rising time falling time first sample reading after zero check
0.1 l 425 sec. 331 sec. 161 sec.
1 l 275 sec. 262 sec. 242 sec.
2 l 275 sec. 352 sec. 332 sec.
3 l 275 sec. 442 sec. 422 sec.
10 l 275 sec 532 sec 1052 sec.
SPAN:
Sample volume: rising time falling time first sample reading after span check
0.1 l 1672 sec. 331 sec 935 sec.
1 l 1522 sec. 262 sec. 1016 sec.
2 l 1522 sec. 352 sec. 1106 sec.
3 l 1522 sec. 442 sec. 1196 sec.
10 l 1522 sec. 532 sec. 1826 sec.