
Positive DisPlacement
Flow meter For
corrosive liquiDs
FPD3100 Series
U PPS Body
U Temperatures up to
80ºC (176ºF)
U NPT or BSP Threads
The FPD3100 Series positive
displacement flow meters are
affordable and accurate. One
primary feature is the ability to
maintain consistent accuracy
despite changing viscosity
conditions. The meter’s solid
construction and excellent dynamic
response are well suited to the
measurement of many corrosives
as well as other non-abrasive fluids.
Since there is no need for straight
run piping upstream or downstream
of the flow meter, the FPD3100
flow meters are simple to use and
to install. The meter has good
resolution and high accuracy at
low flow rates.
smaller than actual size.
FPD3105D-A
Both models shown
F
SPECIFICATIONS
Accuracy: ±0.5% of reading
Repeatability: ±0.03%
Fitting Type:
NPT: Female
BSP: “-BSP” option
Hall-Effect Sensor Power: 4.5 to
24 Vdc (7.5 mA)
Reed Sensor Power: 30 Vdc (500 mA)
Output Options:
Pulse Output: Standard NPN
4 to 20 mA Transmitter:
“-D-A” option; no output on battery
powered “-D” model
Display: 7-digit/12 mm (0.47") upper,
7-digit/7 mm (0.28") lower all
“-D” options
Rate: User defined
Total: Resettable
Accumulated-Total: Non-resettable
FPD3105
Minimum Viscosity: 1cPs
Maximum Viscosity: 1000 cPs standard
Maximum Pressure: See chart
on next page
Strainer Size: See ordering chart on
next page
Mounting: Shafts must be in a
horizontal plane
Electrical Connections: 2 x 12 mm
(0.08 x 0.47"), fittings included
“-D-A” option
Cable Length: 1 m (3') stripped ends,
non-display models
Mounting: Pipe
F-1
Power: 4 to 20 mA, “-D-A” models
18 to 30 Vdc display, “-D” models
3 Vdc lithium battery (included)
Liquid Temperature: -40 to 80°C
(-40 to 176°F), -20 to 60ºC (-4 to 140ºF)
for display models
Materials
Body and Rotors: PPS
Seals: FKM, FEP (FPD3105)
Fasteners: Stainless steel
Cable Insulation: PVC
Shaft: Hastelloy C
Enclosure: NEMA 6 (IP67)

Dimensions:
mm (inch)
Displa
y Module (-D or -D-
FPD3102 and FPD3103
64
(2.52)
A)
43 (1.7)
100 (3.9)
(-D or -D-A)
119 (4.7)
141 (5.6)
(-D or -D-A)
FPD3105
109
(4.3)
Pressure Dr
op vs. Viscosity
F
100%
50%
To Order
Model No.
FPD3102
FPD3103
FPD3105
Comes complete with lithium batter
For units with a battery powered digital display add “-D” to the model number, for an additional charge.
For units with a DC powered digital display and 4 to 20 mA output add “-D-A” to the model number, for an additional charge.
For units with BSP connections add “-BSP” to the model number, no additional charge.
Port
Size
1
⁄4" 2 to 100 LPH (0.5 to 26 GPH) 0.5 to 100 LPH (0.13 to 26 GPH) 75 (500)
1
⁄4" 25 to 500 LPH (6.6 to 132 GPH) 15 to 500 LPH (4 to 132 GPH) 75 (500)
1"
3 to 25 LPM (2.6 to 26 GPM) 2 to 30 LPM (1.6 to 36 GPM)
< 5 cPs > 5 cPs
y (-D) and operator’s manual.
Flow Range
F-2
Maximum
Pressure
psi (Kpa)
150 (1000)