Scale Selection; Analysis Duration And Sampling Time; Alarms; Maintenance - Velp Scientifica RESPIROMETRIC Manual De Instrucciones

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3.5 Scale selection

The scale is related to the expected value. The possibility of measuring diluted samples extends the range.
Results are shown as mg O
Wireless mode
Before the analysis set the scale on the RESPIROSoft™

3.6 Analysis duration and sampling time

Wireless mode
With RESPIROMETRIC Sensor an analysis can last from 5 to
120 days. The sampling time can be selected depending.
on the desired duration of the analysis, from 1 h to 2 days
Wireless mode
Before the analysis set the scale on the RESPIROSoft™

3.7 Alarms

AL1
Calibration error. Restart the analysis. If the problem persists contact the service.
AL2
Analysis start denied. Check on RESPIROSoft™.
AL3
Max. sensors q.ty reached. 50 analyses are already in progress. Wait the end.
No PC response. Check the distance between the RESPIROMETRIC Sensor and the Wireless DataBox™.
AL5
AL8
Data sending failed. Restart the analysis. If the problem persists contact the service.
AL9/11 No PC response. Check if the RESPIROSoft™ is active and if the Wireless DataBox™ connected.
bAt
Low battery (wireless mode OFF). Remove the batteries with the fingers and replace them with new ones paying
attention to the polarity indicated inside the instrument.
Err
Calibration error (wireless mode OFF).

4. Maintenance

RESPIROMETRIC Sensor warns about the required change of batteries when the unit is resetted and the charge is lower
than a minimum threshold. Use a coin lever in the rear part of RESPIROMETRIC Sensor and open it. Batteries are removed
using the fingers. Introduce two fresh batteries at the same time paying attention to the polarity. Battery replacement deletes
any stored value.

5. Technical data

Dimensions (WxHxD)
Measurement
Stored data
Precision
Scales
Electrical input with display on 15 mA max.
Protection degree

6. Accessories / Spare parts

A00000135
BOD Sensor Check
10000904
Alkali container
Scale
0 ÷ 90 mg O
/l
2
0 ÷ 250 mg O
/l
2
0 ÷ 600 mg O
/l
2
0 ÷ 1000 mg O
/l
2
0 ÷ 4000 mg O
/l
2
PRE
/l (ppm) for BOD test and values in mbar for PRE scale.
2
50x70x70 mm
Electronic pressure probe
5 BOD values per sensor;
Database on RESPIROSoft™
± 1 digit ( ±3.55 hPa) ± 1%
90, 250, 600, 999 4000 ppm
BMP PRE
IP 54-EN 60529
Non-wireless mode (after the reset)
Key SET (display on)
Key SET or START
Non-wireless mode
Respirometric Sensor will perform only 5-day test
with 24-hour sampling time for BOD analysis or
30 days using PRE scale.
Weight
BOD values or pressure
Display
Operation range
Power supply
Electrical input with display off 7,5 µA
Admitted room temperature
A00000136
Control Test Tablets
7
Volume of sample
400 ml
250 ml
150 ml
100 ml
25ml
Refer to the method
The scale is changed
The scale is shown
80 g
Directly on the
RESPIROSoft™,
at any time
4 LED digits, 7 mm high
500 ÷ 2000 mbar (h Pa)
2 lithium batteries (250 mAh)
Storing –25  +65° C
Operation +5  +40°C

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F102b0153

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