Metal Tube Flow Meter BR250S — Spring Type
Technical Data
BR250S for high flows of gas, liquid, steam and oil
- Case material
- Aluminium alloy case with paint; SS316 available.
- Body wetted parts material
- SS316; others on request. Indication via magnetic coupling (no sealed).
- Lens material
- Safety glass.
- Scales calibrated
- L/h, m³/h, kg/h, %, etc.
- Flow rates
- Water: 30–120,000 L/h. Air: 0.8–1,200 Nm³/h. Special ranges on request.
- Connection type
- Thread, flange or others available.
- Connection size
- ¼–6 in.
- Mounting
- Vertical and horizontal available.
- Mounting length
- 250 mm standard for ¼–5 in; 300 mm standard for 6 in. Special lengths on request. See housing-specific dimensions below.
- Protection class
- Weatherproof IP66 or explosion-proof available.
- Accuracy
- ±2.5% F.S. (±2.0% F.S. option).
- Maximum pressure
- 40 kg/cm² standard; up to 100 kg/cm² optional.
- Working temperature
- −50 to +200°C standard; up to 400°C on request.
- Options
- Micro switch (5 A / 125 VAC, 5 A / 250 VAC, 2 A / 30 VDC); adjustable reed alarm (Form A bistable, normally open); adjustable inductive alarm; two-wire 4–20 mA analogue output.
- LCD display
- 10-digit totalizer (top), 8-digit flow rate (bottom). Two-wire 4–20 mA output; 24 VDC supply.
- HART communication
- Two-wire transmitter with HART protocol; galvanic isolation; suitable for SIL 2 installations.
Dimensions — mm
Alarm / Analog Output
BR250S / GS-M (Micro Switch)
Adjustable micro switch, BR250S/GS-M
1 adjustable alarm contact
Load: 5 A / 125 VAC, 5 A / 250 VAC, 2 A / 30 VDC.
Temperature: −25 to +70°C (ambient).
Hysteresis: ±10% F.S. (dead band).
BR250S / GS-R (Reed Switch)
Alarm switch: One or two setting points; Form A bistable, normally open.
Hysteresis: ±10% F.S. (dead band).
Switch rating: AC 125 V 0.5 A / DC 100 W / max. DC 250 V <40 mA.
1 adjustable alarm
Contact setting point within 10–100% of F.S.
2 adjustable alarms
The second setting point requires a gap of 40% of F.S. from the first.
BR250S / GS-C (Inductive Switch)
Adjustable inductive alarm switch
Hysteresis: ±1% F.S. (dead band).
Slotted sensor: 3.5 mm slot switch.
Two-wire DC to DIN 19234 (NAMUR), for hazardous areas
Power supply: 8 VDC (Ri approximately 1 kΩ).
Current consumption: 3 mA / 1 mA.
Ambient temperature: −25 to +70°C.
Isolated barrier output relay for inductive sensor
Rail mounting; control circuit EEx ia IIC.
EMC to NAMUR NE21.
Contact loading: 250 VAC 2 A SPDT / 40 VDC 2 A.
1 adjustable alarm
Contact setting point within 10–100% of F.S.
24 VDC: KFD2-SR2-Ex1.W
115 VAC: KFA5-SR2-Ex1.W
230 VAC: KFA6-SR2-Ex1.W
2 adjustable alarms
The second setting point requires a gap of 65% of F.S. from the first.
24 VDC: KFD2-SR2-Ex2.W
115 VAC: KFA5-SR2-Ex2.W
230 VAC: KFA6-SR2-Ex2.W
BR250S / GT (Analog Output)
Electric transmitter BR250S/GT
Analogue output: Two-wire 4–20 mA.
No alarm switch available.
Power supply: 24 VDC.
Temperature: −25 to +70°C (ambient).
LCD Display / Totalizer
Note
For A1 housing only. For the explosion-proof type, refer to the D-1000 catalogue.
LCD display: 10-digit totalizer (top), 8-digit flow rate (bottom).
Analogue output: Two-wire 4–20 mA.
Power supply: 24 VDC.
Flow direction, damping and principle
Flow Direction Type
Damping Mechanical (Option Function)
Principle
Standard Scales
| Tube | L/h Water 20°C | Nm³/h Air 0°C, 1.013 bar | Pressure loss psig | Connection | Accuracy |
|---|---|---|---|---|---|
| BR250S01 | 30–300 | 0.8–8 | ≤3.5 | ½″ | ±2.5% FS |
| BR250S02 | 40–400 | 1–10 | ≤3.8 | ½″ | ±2.5% FS |
| BR250S03 | 50–500 | 1.2–12 | ≤3.7 | ½″ | ±2.5% FS |
| BR250S04 | 70–700 | 1.7–17 | ≤3.6 | ½″ | ±2.5% FS |
| BR250S05 | 80–800 | 2–20 | ≤3.8 | ½″ | ±2.5% FS |
| BR250S06 | 100–1000 | 2.7–27 | ≤4.0 | ½″ | ±2.5% FS |
| BR250S07 | 150–1500 | 4–40 | ≤4.2 | ½″ | ±2.5% FS |
| BR250S08 | 180–1800 | 5–50 | ≤4.5 | ½″ | ±2.5% FS |
| BR250S09 | 150–1500 | 4–40 | ≤3.8 | ¾″ | ±2.5% FS |
| BR250S10 | 200–2000 | 6–60 | ≤4.0 | ¾″ | ±2.5% FS |
| BR250S11 | 300–3000 | 9–90 | ≤3.4 | 1″ | ±2.5% FS |
| BR250S12 | 400–4000 | 12–120 | ≤3.6 | 1″ | ±2.5% FS |
| BR250S13 | 600–6000 | 15–150 | ≤3.9 | 1″ | ±2.5% FS |
| BR250S14 | 600–6000 | 15–150 | ≤3.6 | 1½″ | ±2.5% FS |
| BR250S15 | 800–8000 | 24–240 | ≤3.8 | 1½″ | ±2.5% FS |
| BR250S16 | 1000–10000 | 30–300 | ≤3.9 | 1½″ | ±2.5% FS |
| BR250S17 | 1200–12000 | 35–350 | ≤4.3 | 1½″ | ±2.5% FS |
| BR250S18 | 1200–12000 | 35–350 | ≤3.2 | 2″ | ±2.5% FS |
| BR250S19 | 1600–16000 | 50–500 | ≤3.4 | 2″ | ±2.5% FS |
| BR250S20 | 2000–20000 | 60–600 | ≤3.8 | 2″ | ±2.5% FS |
| BR250S21 | 2500–25000 | 70–700 | ≤4.1 | 2″ | ±2.5% FS |
| BR250S22 | 2000–20000 | 70–700 | ≤3.0 | 2½″ | ±2.5% FS |
| BR250S23 | 3000–30000 | 80–800 | ≤3.2 | 2½″ | ±2.5% FS |
| BR250S24 | 3000–30000 | 90–900 | ≤3.4 | 3″ | ±2.5% FS |
| BR250S25 | 4000–40000 | 120–1200 | ≤3.7 | 3″ | ±2.5% FS |
| BR250S26 | 5000–50000 | — | ≤3.6 | 4″ | ±2.5% FS |
| BR250S27 | 6000–60000 | — | ≤4.2 | 4″ | ±2.5% FS |
| BR250S28 | 10000–100000 | — | ≤3.8 | 5″ | ±2.5% FS |
| BR250S29 | 12000–120000 | — | ≤4.3 | 5″ | ±2.5% FS |
Technical data are effective at the date of issue and are subject to change without prior notice.
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