GF 2280 Instruction Manual

GF Piping Systems
Instruction manual
2280 Swing Fork
with relay output
Observe instruction manual
The instruction manual is part of the product and an important element within the safety
concept.
Read and observe the instruction manual.

Always have the instruction manual available at the product.

Pass on the instruction manual to all subsequent users of the product.

1

Intended use

The tuning fork switch is used for level measuring and for detecting the limit level of liquids.
2

About this document

This document contains all necessary information for the installation, operation and
maintenance of the product.
3

Safety and responsibility

 Only use the product as intended, see intended use.
 Do not use the product if it is damaged or faulty. Throw out the product immediately
if it is damaged.
 Make sure that the piping system has been installed professionally and that it is
inspected regularly.
 The product must only be installed by persons who have the required training,
knowledge and experience.
 Regularly train personnel on all questions pertaining to the locally accepted
regulations on occupational safety and environmental protection, especially on
pressure-retaining pipelines.
The personnel is responsible for the following measures:
Know, understand and follow the instruction manual and the advices therein.

4

Scope of delivery

2280 Tuning fork switch with relay output

 Instruction manual
 1 x gasket, 2 mm thick, made of KLINGER OILIT (for G1
 2 x 3-pole connector plugs (3 x 3-pole connector plugs when 2 output relays)
 2 x M20 x 1.5 cable entry
5

Transport and storage

Protect the product against external force during transport (impact, stroke,

vibrations, etc.).
 Transport and/or store the product in unopened, undamaged original packaging.
 Protect the product from dust, dirt and moisture, as well as heat and ultraviolet
radiation.
 Make sure that the product has not been damaged by either mechanical or thermal
influences.
 Check the product for transport damage before assembly.
6

Function

The tuning fork switch is used for level measuring and for detecting
the limit level of liquids. Example: overfill prevention, no-load
protection, pump control.
The product can be installed in several ways.
 When mounting laterally the position of the fork needs to be
taken into account!
Can be used for the following liquids:
 Low viscosity: Mounting in any position (horizontal, vertical,
diagonal).
 High viscosity: Vertical mounting exclusively (from the top), as
otherwise the tuning fork frees up only with difficulty.
7

Technical specifications

Data
Model
Wetted parts
Georg Fischer Piping Systems Ltd CH-8201 Schaffhausen
Phone +41 (0)52 631 30 26 / info.ps@georgfischer.com /
www.gfps.com
GFDO 6382_4 (08.14)
© Georg Fischer Rohrleitungssysteme AG
CH-8201 Schaffhausen / Switzerland,
2014 Printed in Switzerland
"
process connection only)
Values
2280-S-xxxT-X
stainless steel 1,4571 (X6 CrNiMoTi 17122)
Data
Housing material
Medium temperature
Ambient temperature
Max. operating pressure
Installation length
Medium density
Medium viscosity
upon covering
Delay time
upon freeing up
Switching status display
Setting min./max. safety
Output
Electr. connection/wire cross-section 2 x M20 x 1.5, wire
Supply voltage
Power input
Protection against accidental contact Class I
Protection rating
Weight
Storage conditions
8

Dimensions

Short version
1 2 x M20 x 1.5 (gland)
2 2 x NPT ½" (gland)
3 Hexagonal collar SW41
9

Graphs

Temperature – Pressure
Delay time – Viscosity
Delay time upon freeing up depending on the viscosity of the medium:
1 Fully immersed 2 Semi-immersed
Switching point, switching hysteresis
The switching point and the witching hysteresis are subject to the density of the medium
and the mounting position.
D ~14 mm
1
D ~3 mm
2
Values
Plastic: PBT fiberglass-reinforced, hardly
inflammable (DuPont®)
-40 to +130 °C
-30 to +70 °C
40 bar
short version 69 mm
standard version 125 mm
≥ 0.7 kg/dm 3
≤ 10.000 mm 2 /s (cSt)
≤ 0.5 s
≤ 1 s (see Delay time – Viscosity)
two-color LED
with switch selectable
SPDT relay, 250 VAC, 8 A, AC 1
6 – 12 mm / 0.75 – 2.5 mm
Ø
20 – 255 VAC and 20 – 60 VDC
; < 3 W
1.2 – 17 VA
AC DC
IP67 (NEMA 6)
0.95 kg + 1.2 kg/m
Ambient temperature -25 to +60 °C
Relative humidity max. 98 %
Standard version
L 89 mm L 125 mm
1 4
L 111 mm d
BSP 1" / NPT 1"
2 1
L 69 mm d Ø 28 mm
3 2
3 Only tip immersed
D ~13 mm
3
D ~4 mm
4
2