Benefits
- Simple and low cost installation - maintenance free
- Solid State Circuitry
- No mechanical parts - providing high reliability
- Robust VRP Transducer
- Increased sensitivity - ideal for flue-gas
draught measurement
- Self Contained Transmitter/Controller
- Weatherproof aluminium enclosure
- CE Certification
Specifications
Electrical
Supply voltage: 230Vac ± 10% 50/60 Hz
Analogue output: 4-20mA 0-1mA switch selectable.
Max insertion 600ohm or 0-10V dc.
Max current 5.0 mA
Damping filter time constant: 0.5 to 5 seconds, switch selectable
Control Board (where fitted)
Control switching output: Solid-state relays,
12-80Vac or 80-240Vac (option)
2 ampere, resistive.
Damping filter time constant: 0.5 to 5 seconds, switch selectable.
Pressure Ranges: 5 to 1000 mm water gauge.
Gauge or differential: (50 Pa - 10 KPa)
Pressure Media: Typically air or similar non-conducting gases.
Transducer: Capacitance principle with stainless steel body,
diaphragm &electrode. Ceramic insulator.
Internal temp. compensation.
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Performance
Accuracy1: ±1.2% of full-scale, at constant temperature
Non-linearity(BFSL): ±1% of full-scale
Hysteresis: 0.2% of full-scale
Non-repeatability: 0.2% of full-scale
Max. line pressure: 70 KPa (0.7 bar) in positive or negative direction
Thermal effects: Zero/span shift: 0.1% per °C
Compensated range: -18 to +65°C
Warm up shift2 : 0.5% of full-scale total
Environmental
Enclosure : Diecast aluminium AlSI 12, DIN 1725.
Weatherproof to IP 65 wall mounting.
LxWxH 180x140x71 (excl. fittings)
Pressure connection: 6mm OD compression fittings
Cable entries : 3 off drilled 20.6mm Dia.
for M20 x 1.5 pitch or pq 13.5
Operating temperature: -18°C to 65°C
Weight : 1.5 kg net
1. Accuracy expressed ad the root sum squares of non-linearity,
hysteresis and non-repeatability.
2. While internal temperature compensation becomes effective
Description
BPR2000 is a 3-point UP/DOWN Draught regulator especially designed
for incinerator, cremator and boiler use. BPR2000 contains a
capacitive sensor cell where all parts are made of stainless steel
or ceramic. The internal part of this type of cell is temperature
compensated. BPR2000 is typically used to control a damper in the
flue channel ahead of an extractor.
This way the underpressure in the combustion chamber is stabilised
independent of stack-draft, pressure drop past the heat exchange
section and burner behaviour.
