7
+4%
+2%
-4%
-2% Q
min
Q
trans
Q
max
-1%
+1%
Fig.1. The figure is a real measurement error of the flow meter
1.2.5. The flow meter provides that the results of measurements can be out-
putted to:
- Universal output in the form of frequency, pulse or logical signal
- M-BUS interface
- RS-485 interface.
1.2.6. The flow meter provides storage of measurement results in the following
logs:
- Hourly log
– 120 records (hourly records)
- Daily log
– 45 records (daily records)
- Monthly log
– 48 records (monthly records)
- Opereting mode log
– up to 100 records.
When powered off, the flow meter stores measurement results and
configuration settings for no less than 1 year.
1.2.7. The flow meter is powered from a built-in D-size lithium battery (3.6V
nominal voltage);
1.2.8. The flow meter complies with the following standards:
- Environmental resistance
– ambient air temperature range is
+5...+6
5 °C; relative humidity is no more than 80 % at a temperature
≤ 35 °C, without moisture condensation
- Atmospheric pressure from 66.0 to 106.7 kPa.
Protection provided by the enclosure is IP65 (IP67 on request).
1.2.9. View, overall dimensions and weight are given in Appendix A.
1.3. Contents of the delivery package
1.3.1. Items of the delivery package are specified in Table 2.
Table 2
Item
Qty
Notes
1. Battery powered ultrasonic flow meter
1
Note
2. Installation kit
1
3. Operating documentation:
- Passport
1
- Operation manual and dedicated software
1
NOTE. The required items of the delivery package are specified in
the order sheet.
Operating documentation and order sheets for this product and
Содержание BUF
Страница 1: ...BATTERY POWERED ULTRASONIC FLOW METER AFLOWT BUF VERSION BUF 311 OPERATION MANUAL ISO 9001 2008 ...
Страница 2: ...2 Manufacturer quality management system is certified to ISO 9001 2008 URL http www aflowt com ...
Страница 31: ...31 APPENDIX B Wiring diagrams Fig B 1 BUF Flow meter wiring diagram ...