TESTO 0554 6440 User manual
0554 6440 · Flow direction switch
Instruction manual
2
1 Contents
3
1Contents
1Contents .............................................................................................3
2Safety and the environment ..............................................................4
2.1. About this document ..................................................................4
2.2. Ensure safety .............................................................................5
2.3. Protecting the environment ........................................................5
3Specifications.....................................................................................5
3.1. Use ............................................................................................5
3.2. Technical data............................................................................6
4Product description ...........................................................................8
5Using the product ..............................................................................8
6Maintaining the product ..................................................................10
2 Safety and the environment
4
2Safety and the environment
2.1. About this document
Use
> Please read this documentation through carefully and
familiarize yourself with the product before putting it to use.
Pay particular attention to the safety instructions and
warning advice in order to prevent injuries and damage to
the products.
> Keep this document to hand so that you can refer to it when
necessary.
> Hand this documentation on to any subsequent users of the
product.
Symbols and writing standards
Representation Explanation
Warning advice, risk level according to the
signal word:
Warning! Serious physical injury may occur.
Caution! Slight physical injury or damage to
the equipment may occur.
> Implement the specified precautionary
measures.
Note: Basic or further information.
1....
2....
Action: more steps, the sequence must be
followed.
> ... Action: a step or an optional step.
- ... Result of an action.
3 Specifications
5
2.2. Ensure safety
> Do not operate the instrument if there are signs of damage
at the housing, mains unit or feed lines.
> Only operate the product properly, for its intended purpose
and within the parameters specified in the technical data. Do
not use any force.
> The objects to be measured or the measurement
environment may also pose risks: Note the safety
regulations valid in your area when performing the
measurements.
> Do not store the product together with solvents. Do not use
any desiccants.
> Carry out only the maintenance and repair work on this
instrument that is described in the documentation. Follow
the prescribed steps exactly. Use only original spare parts
from Testo.
2.3. Protecting the environment
> At the end of its useful life, send the product to the separate
collection for electric and electronic devices (observe local
regulations) or return the product to Testo for disposal.
3Specifications
3.1. Use
The compact flow direction switch is ideal for controlling the flow
with smaller pipe sizes and higher system pressures. The
patented setting of the switch allows a prompt changeover
between the normally open and normally closed contact
position.
The vane has a detachable, coated shortening template. This
shows where to shorten for pipe sizes from 1/2" to 2". An index
arrow on the hexagon shows the correct direction of flow.
3 Specifications
6
3.2. Technical data
Characteristic Values
Temperature limit
for application
maximum 90 °C
Maximum pressure 70 bar
Pipe connection 1/2" NPT external thread
Switch type Hermetically shielded single-pin reed
switch
Can be set to normally open or normally
closed contact position in application
range
Electrical data 1.5 A at 24 VDC, resistive load,
1 A at voltage < 60 VDC
0.5 A at 25 VAC
Connection via terminal block in housing
Switch body Brass
Reed switch
housing
Polypropylene
Vane 301 stainless steel, 11 x 0.51 mm (W x H)
Parts that make
contact with medium
301, 302 and 316 stainless steel, ceramic
8 magnet, body made of brass
Weight 28 g without housing
Table of ranges Nm3/h
N.O.
(normally open)
N.C.
(normally closed)
ø of
pipe
Mark-
ing
activated deactivated activated deactivated
1/2“ L 17.5 15 17.3 15.6
3/4“ J 22.1 19.7 21.9 19.7
1“ H 32.6 29.9 32.1 29.9
1 1/4“ E 42.1 37.7 41.6 38.2
1 1/2“ C 56.8 53 56.1 52
2“ Full 85.3 82.2 85.3 81.1
3 Specifications
7
Table of ranges l/min
N.O.
(normally open)
N.C.
(normally closed)
ø of
pipe
Mark-
ing
activated deactivated activated deactivated
1/2“ L 291.7 250 288 260
3/4“ J 368.3 328 365 328
1“ H 543.3 498 535 498
1 1/4“ E 701.7 628 693 637
1 1/2“ C 946.7 883 935 867
2“ Full 1422 1370 1422 1352
Table of ranges SCFM (standard cubic feet/minute)
N.O.
(normally open)
N.C.
(normally closed)
ø of
pipe
Mark-
ing
activated deactivated activated deactivated
1/2“ L 10.3 8.8 10.2 9.2
3/4“ J 13 11.6 12.9 11.6
1“ H 19.2 17.6 18.9 17.6
1 1/4“ E 24.8 22.2 24.5 22.5
1 1/2“ C 33.4 31.2 33 30.6
2“ Full 50.2 48.4 50.2 47.7
Dimensions
4 Using the product
8
4Product description
Overview
1Paddle
21/2" NPT connecting thread
37/8" hexagon
4 Connecting housing
5Cable coupling
6 Reed switch
7 Shortening template
5Using the product
Installation
Caution! Mechanical shock or vibration may lead to
permanent damage of the reed switch.
> Handle the instrument carefully.
1.Open packaging and remove the packing material from the
flow direction switch.
2.Shorten the paddle at the marked positions according to the
diameter of the pipeline, see Technical data, Page 6.
3.Seal off NPT connecting thread using PTFE tape and install
the flow direction switch in the pipe system.
The arrow on the hexagon must point in the flow direction.
5 Maintaining the product
9
4.Perform electrical connection via the terminal block in the
housing.
Caution! Inductive or capacitive loads or loads due to
lamps may lead to permanent damage to the reed
switch.
• Inductive loads may be generated by
electromagenetic relays, electromagnetic valves and
other components.
• Capacitive loads may be generated by capacitors
that are connected in series or in parallel with the
reed switch. Capacities may be generated by this in
a closed loop with a cable length of 50 m or more.
• Loads due to lamps are produced by activating lamp
components that have a low cold resistance.
• Exceeding the maximum switching capacity may
lead to damages. This includes voltages that are
larger than the given maximum switching voltages.
Setting the switching mechanism
1NC: closed without flow (normally closed contact)
2NO: open without flow (normally open contact)
The NC setting opens the contact and the NO setting closes it if
the increasing flow activates the reed switch.
1.Loosen both screws on the upper cap of the reed switch. Do
not remove screws!
2.Move the reed switch so that the selected switching
mechanism is visible (NO or NC).
3.Retighten screws on the upper cap.
6 Maintaining the product
10
6Maintaining the product
Check function of relay
It is recommended that you check the function of the relay on a
regular basis:
1.Loosen both screws on the upper cap of the reed switch. Do
not remove screws!
2.Move reed switch.
- The relay must report a switch process.
3.Slide reed switch to starting position.
4.Retighten screws on the upper cap.
testo AG
Postfach 1140, 79849 Lenzkirch
Testo-Strasse 1, 79853 Lenzkirch
GERMANY
Phone: +49 (0) 7653 681-0
Fax: +49 (0) 7653 681-100
Internet: www.testo.com
0971 0639 en 02
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