Instruction Manual Mi 190 DO Bench Meter
5
SPECIFICATIONS
Range
DO
0.00 to 45.00 ppm O
2
0.0 to 300.0 % O
2
Temp
-5.0 to 55.0 °C (23.0 to 131.0 °F)
Resolution
DO
0.01 ppm
0.1 %
Temp
0.1 °C (0.1 °F)
Accuracy
DO
±1.5 % of full scale
(@ 20 °C / 68 °F)
Temp
±0.4 °C (±0.8 °F)
Calibration
DO
single or double point at 0% (MI 9070) and 100% (in air)
Temp
2-point, at 0 and 50 °C (32.0 and 122.0 °F)
Altitude Compensation 0 to 4 000 m (13 120’)
Resolution
100 m (328’)
Salinity Compensation 0 to 40 g/l
Resolution
1 g/l
Temperature
Automatic, from 0.0 to 50.0 °C (32.0 to 122.0 °F)
Compensation
Probe
MA 840/2
Computer Interface
RS232/USB opto-isolated
Power supply
12 VDC power adapter
Dimensions
230 x 160 x 95 mm (9.0 x 6.3 x 3.7")
Weight
0.9 kg (2.0 lb.)
Environment
0 to 50 °C (32 to 122 °F) ; max RH 95%
Warranty
3 years
This instrument is in compliance with CE Directives.
2 4
2 4
2 4
2 4
2 4
<ETX> is 03 ASCII code character (end of text)
<answer>:
<ACK> is sent for a recognized command
<CAN> is sent when the instrument is logging
<Err6>/<Err8> is sent when the command is incorrect or the instrument is not in
measurement mode.
COMMANDS REQUIRING AN ANSWER
The instrument will answer for these commands with:
<STX> <answer> <checksum> <ETX>
where the checksum is the bytes sum of the answer string sent as 2 ASCII characters.
All the answer messages are with ASCII characters.
RDO
RDO
RDO
RDO
RDO
Causes the instrument to send a complete set of readings in according with the DO range.
M D L
M D L
M D L
M D L
M D L
Requests the instrument model name and firmware code (16 ASCII chars).
I N F
I N F
I N F
I N F
I N F
Requests the setup parameters.
S A M
S A M
S A M
S A M
S A M
Requests the number of logged samples (4 chars).
LDDO
LDDO
LDDO
LDDO
LDDO
xxx Requests the xxx
th
DO record logged data.
L A D O
L A D O
L A D O
L A D O
L A D O
Requests all DO Log on demand.
N o t e s
N o t e s
N o t e s
N o t e s
N o t e s :
•“Err8” is sent if the instrument is not in measurement mode.
•“Err6” is sent if the requested range is not available.
•“Err4” is sent if the requested set parameter is not available.
•“Err3” is sent if the Log on demand is empty.
•Invalid commands will be ignored.
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