Version 1.7 (June 2017)
TSI Flowmeters Ltd.
GENERAL2.1
Weight  12.0 kg including battery pack 
& instantaneous adaptors
Dimensions  390 (L) x 240 (W)
  x 210 (H) mm
Power  Internal Battery Pack.  DC 
12V @ 250 mA
Case Material  Corrosion resistant LM25 
aluminium
Operating Temp.  -10°C ~ +50°C
Adaptors  2.5” BSPM or BS 
Instantaneous (4.0” BSPM for 
Flowmaster 400)
  2.5” NST for USA and other 
adaptors available on request
Colour  Firemen Red & anodised 
aluminium
Sensor Type Electromagnetic
Range  30 - 3,000 lpm carriage return
  By changing the sensor 
control pcb, range can be 
extended to 5,000 lpm
Resolution  50 ~ 750 l/min ± 15 l/min
  750 l/min ~  ±2%
Standard Functions  Flow reading
  Totaliser reading
Casing Material  Corrosion resistant ADC6-12 
(JIS) aluminium (anodised)
Pressure rating  49 bar
Digital LCD display gauge
                                    • 4 digits
                                    • 17.6mm high digits
                                    • Analog bar graph
                                    • Internal backlighting
Type  Bourdon Tube
Range  0 ~ 10 bar, ±1%.  (0-7, 0-15, 
0-20, 0-25 bar also supplied)
Dial  Analog type, 60 mm dial
 
 
Battery Type  Nickel-metal hydride, NiMH
Rated Capacity  2.2 Ah (10 hours continuous 
operation)
Recharging  Mains operated recharger is 
supplied
In-car charger  Available as separate item
SPECIFICATION
2
6
FLOWMETER2.2
PRESSURE GAUGE2.3
BATTERY PACK2.4
FLOWMASTER 4002.5
Weight  15.0 kg including battery pack 
and 100mm ttings
Dimensions  510 (L) x 240 (W)
  x 210 (H) mm
Streamlined  Pressure loss is minimal 
thanks to the use of tapered 
adaptors from 65mm bore to 
100mm adaptors
Adaptors  100mm French adaptors 
tted onto 100mm BSPM
  Other adaptors available on 
request
Other specications as per Flowmaster 250
Fig. 2.1 Flowmaster 400