Flowmeter PRAMER-525X
Appointment: measurement of volumetric flow and total volume of liquids in one or two filled pipelines, measurement of continuous operation period; data backup in non-volatile memory; indication of results and data transmission to external devices.
Application: industrial enterprises and municipal services, systems of hot and cold water supply, drinking water supply, objects of food industry.
Electromagnetic flow meters Pramer-52XX are registered in State Register of Measuring Instruments, № 43140-09. Pattern approval certificate No. RU.С.29.004.А № 38382.
Construction of PRAMER-52XX
- calculation device (CD) with LCD, a non-volatile memory for data backup and digital communication interface;
- one or two flow transducers connected to measuring channel(s) of CD.
The following flow transducers can be used as a part of PRAMER-52XX:
- vortex electromagnetic flow transducers VEPS , DN 20-300 mm;
- electromagnetic flow transducers EMIR-PRAMER-550, DN 15-150 mm, option of reverse flow measurement is available.
- Option D: one or two pressure transducers with output signal 4-20 mA.
- Option K: one or two relay discrete dial-up outputs for emergency control connected additional equipment
Table 1. Possible modifications of PRAMER-52XX depending on type and quantity of flow transducers (FT) and options.
| Mark ing | Modi fica tion | FT | Options | Power supply of CD | |
|---|---|---|---|---|---|
| Channel 1 | Channel 2 | ||||
| 51 | V | VEPS | -- | D, K | external |
| E | EMIR-PRAMER-550 | -- | D, K | external | |
| E/R | EMIR-PRAMER-550 | Reverse flow | D, K | external | |
| 52 | V/V | VEPS | VEPS | D, K | external |
| V/E | VEPS | EMIR-PRAMER-550 | D, K | external | |
| E/E | EMIR-PRAMER-550 | EMIR-PRAMER-550 | D, K | external | |
PRAMER-52XX provides measurement and indication of the following data for every measuring channel:
- Accumulative volume (as progressive total) of liquid in m3;
- Actual value of flow rate in m3/h;
- Date and time;
- Total time of continuous operation in hours and minutes;
- Signs of abnormal situations.
Backup of information for every measuring channel:
- Accumulated volume of passed liquid in m3:
- total value;
- for a specified time period (hour/day/month);
- Abnormal events log.
- Flow meters PRAMER-52XX –D (DD) additionally provide backup of average values of pressure (kgf/cm2) for a specified time period for each measuring channel.
Memory capacity:
- for hourly average values - 1024 records,
- for daily average values - 128 records,
- for monthly average values - 32 records,
- for abnormal events - 1024 records.
Flow meters provide transmission of information to data network RS-485.
In case of power supply switch off values of flow volume, total time of continuous operation and backup data keep saved during all period of flow meters' lifetime.
Controlled medium parameters:
- Temperature range: from +5 to +150 C;
- Gage pressure:
- for modifications with VEPS – max 1.6 MPa;
- for modifications with EMIR-PRAMER-550 – max 1.6 MPa or 2.5 MPa;
- Ionic conductivity:
- for modifications with VEPS – not less than 5x10-4sm/m;
- for modifications with EMIR-PRAMER-550 - not less than 10-3sm/m;
- Kinematic viscosity for modifications with VEPS – not more than 1,5x10-6 m2/sec.
Technical Characteristics
Table 2. PRAMER-52XX modifications with flow transducer(s) VEPS: minimal (Qmin), transit (Qt) and maximal (Qmax) values of flow depending on nominal diameter (DN).
| DN, mm | Flow rate, m3/h | ||
|---|---|---|---|
| Qmin | Qt | Qmax | |
| 20 | 0,3 | 0,5 | 8 |
| 25 | 0,4 | 0,63 | 10 |
| 32 | 0,5 | 1,0 | 16 |
| 40 | 0,8 | 1,6 | 25 |
| 50 | 1,0 | 2,0 | 32 |
| 80 | 2,5 | 5,0 | 80 |
| 100 | 5,0 | 10 | 160 |
| 150 | 12,5 | 25 | 400 |
| 200 | 25 | 40 | 630 |
| 250 | 32 | 63 | 1000 |
| 300 | 50 | 100 | |
Table 3. PRAMER-52XX modifications with flow transducer(s) EMIR-PRAMER-550: minimal (Qmin), transit (Qt) and maximal (Qmax) values of flow depending on nominal diameter (DN) and class of flow transducer (dynamic range).
| DN, mm | Flow rate, m3/h | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Class A | Class B | Class C | Class D, E | ||||||||||
| Qmi | Qma | Qmin | Qt1 | Qmax | Qmin | Qt2 | Qt1 | Qmax | Qmin | Qt2 | Qt1 | Qmax | |
| 15 | 0,0 | 6 | 0,0 | 0,0 | 6 | 0,0 | 0,0 | 0,0 | 6 | 0,0 | 0,02 | 0,0 | 6 |
| 25 | 0,16 | 16 | 0,0 | 0,1 | 16 | 0,0 | 0,0 | 0,1 | 16 | 0,0 | 0,064 | 0,16 | 16 |
| 32 | 0,25 | 25 | 0,1 | 0,2 | 25 | 0,0 | 0,1 | 0,2 | 25 | 0,0 | 1,00 | 0,25 | 25 |
| 40 | 0,4 | 40 | 0,1 | 0,4 | 40 | 0,0 | 0,1 | 0,4 | 40 | 0,0 | 0,160 | 0,40 | 40 |
| 50 | 0,6 | 60 | 0,2 | 0,6 | 60 | 0,1 | 0,2 | 0,6 | 60 | 0,0 | 0,240 | 0,60 | 60 |
| 65 | 1,0 | 100 | 0,4 | 1,0 | 100 | 0,2 | 0,4 | 1,0 | 100 | 0,1 | 0,400 | 1,00 | 100 |
| 80 | 1,6 | 160 | 0,6 | 1,6 | 160 | 0,3 | 0,6 | 1,6 | 160 | 0,1 | 0,640 | 1,60 | 160 |
| 100 | 2,5 | 250 | 1,0 | 2,5 | 250 | 0,5 | 1,0 | 2,5 | 250 | 0,2 | 1,000 | 2,50 | 250 |
| 150 | 6,0 | 600 | 2,4 | 6,0 | 600 | 1,2 | 2,4 | 6,0 | 600 | 0,6 | 2,400 | 6,00 | 600 |
Table 4. Metrological characteristics of calculation device (CD).
| Value (parameter) | Range | Accuracy |
|---|---|---|
| Time of continuous operation, sec | from 1 to 100000000 | +/- 0,03 % |
| Frequency of CD, Hz | 0,1 ... 1000 | +/- 0,03 % |
| Pulse counting | - | +/- 0,03 % |
Table 5. Accuracy
| Value | Flow range | Accuracy, % |
|---|---|---|
| Volume flow and total volume | Modifications with VEPS | |
| Qmin...Qt | ± 1,5 | |
| Qt...Qmax | ± 1,0 | |
| Modifications with EMIR-PRAMER-550 for transducers class A (1:100): |
||
| Qmax...Qmin | ± 1,0 | |
| for transducers class B (1:250): | ||
| Qmax...Qt1 | ± 1,0 | |
| Qt1...Qmin | ± 2,0 | |
| for transducers class C (1:500): | ||
| Qmax...Qt1 | ± 1,0 | |
| Qt1...Qt2 | ± 2,0 | |
| Qt2...Qmin | ± 5,0 | |
| for transducers class D (1:1000): | ||
| Qmax...Qt1 | ± 1,0 | |
| Qt1...Qt2 | ± 2,0 | |
| Qt2...Qmin | ± 5,0 | |
| for transducers class E (1:1000): | ||
| Qmax...Qmin | ± 1,0 | |
Operation conditions:
- Relative humidity: up to 95% (at temperature max +35 C, without condensation);
- Atmospheric pressure: 84,0...106,7 kPa;
- Ambient temperature:
- for calculation device (CD): +10... +50 C;
- for flow transducer VEPS: -30...+50 C;
- for flow transducer EMIR-PRAMER-550: -10...+55 C;
- Intensity on constant magnetic field: not more than 400 A/m;
- Intensity of variable magnetic field with frequency 50 Hz: not more than 40 A/m.
Power supply of calculation device: 187-242 V AC, (50±1) Hz;
Power supply for flow transducers and pressure transducers: please, check technical specifications of corresponding devices.
Total power consumption, not more than: 12 W.
Protection degree (IP) according to GOST 1425:
Calculation device - IP54;
Flow and pressure transducers - IP65.
Average time to failure: not less than 75000 hours.
Average lifetime: not less than 15 years.
Recalibration interval: 4 years.
Warranty period: 8 years.
Design, frame size and mounting dimensions of the calculation device
Length x width x height (not more than), mm: 204x100x60.
Weight, not more than: 0.5 kg.
