GF Signet 2507 Mini Flow Sensor

Compact PVDF mini-flow rotor sensor with interchangeable flow inserts covering 100…12,000 ml/min and open-collector square-wave output.

Key advantages

Insert-based ranges — five insert families from 100…2,000 ml/min up to 3,200…12,000 ml/min.
±2% of reading — repeatability ±0.25% of full range; viscosity 0.2…20.0 cSt.
G ¼ / ¼ NPT adapters — detachable signal connector; 7.6 m cable standard.
PVDF wetted path — opaque or transparent fluids.

Typical applications

Fluid dispensing, lab/clinical wet benches, chemical dosing, batch processes.
Compact skids needing ml/min resolution rather than pipe-insertion sensors.

Selection guide

Ranges by insert — -1V 100…2,000; -2V 400…2,800; -3V 700…4,200; -4V 1,300…6,000; -6V 3,200…12,000 ml/min.
Accuracy — ±2% of reading; repeatability ±0.25% of full range.
Connections — G ¼ in. ports; ¼ in. NPT adapters included (2).
Wetted materials — PVDF housing/rotor/adapters; PTFE flow insert; FKM quad ring.
Electrical — 5…24 VDC ±10%, 10 mA max; open-collector sinking 10 mA max; cable to 300 m.
Pressure / temp — 5.5 bar @ −18…24 °C; 3 bar @ 120 °C (see datasheet diagram).
Approvals — CE, UKCA, FCC; RoHS.

Common mistakes

Ordering without specifying the insert/range code for the dosing window.
Using outside 0.2…20 cSt viscosity without OEM review.
Ignoring pressure derate at elevated temperature.
Flow instruments · Flow buying guide

When to RFQ / what to tell us

Target ml/min (or gpm) min/max and fluid viscosity.
Chemistry compatibility with PVDF/PTFE/FKM.
Host input type; T/P; quantity; ship-to.

Request a Quote · Get selection help

Specs

Spec	Value
SKU	20197
Brand	Georg Fischer / GF Signet
Model	2507
Product type	mini-flow sensor
Measuring range	100 to 12,000 ml/min overall (insert-dependent)
Accuracy	±2% of reading; repeatability ±0.25% of full range
Output signal	Open-collector square-wave, sinking, 10 mA max
Supply voltage	5 to 24 VDC ±10%, 10 mA max
Process connection	G ¼ in. ports; ¼ in. NPT adapters (2 included)
Wetted materials	PVDF; PTFE insert; FKM quad ring
Viscosity range	0.2 to 20.0 centistokes
Approvals	CE, UKCA, FCC; RoHS
Notes	Values aligned with GF datasheet 3-2507.099 Rev I 06/2026-A.

Documents

GF Signet 2507 datasheet (PDF)

FAQ

Q: How do I pick the insert? A: Match your min/max ml/min to the -1V…-6V windows. Share the flow window in the RFQ if unsure.

Q: 2507 vs 2000? A: 2507 is PVDF mini-flow with interchangeable inserts up to 12 L/min class; 2000 is PPS micro-flow with two fixed range families and ¼ in. male threads.

Q: What should I send for a quote? A: Flow window, viscosity, chemistry, T/P, host, quantity. Compatible with systems using GF Signet 2507 if you need a drop-in check — we do not claim authorized-dealer status.