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LM7 Installation, Operation Manual

Tel: 1-800-WINTERS / www.winters.com

WINTERS INSTRUMENTS

6

!

A minimum static bending radius has to be complied with. For static installation use the 10-fold cable diameter, 

for dynamic applications use the 20-fold diameter.

!

Prevent the damage or removal of the PTFE filter which is fixed over the end of the air tube on devices with 

cable outlet and integrated air tube. 

For the electrical connection a shielded and twisted multicore cable is recommended.

If a transition is desired from a probe cable with gauge tube to a cable without gauge tube, we recommend our 

terminal box KL 1 or KL 2.

Usually, the required cable is included in the scope of delivery. If it is although necessary to connect an existing

or special cable, the total resistance will increase. For applications, where this additional resistance of the 

connecting cable could cause problems, this cable has to be checked with the following calculation.

with RL: resistance of connecting cable in ohm

p:

specific resistance in ohm mm²/m

l:

cable length in m

A:

cross section of conductor in mm²

with Vtot:

total voltage drop

Rload: load resistance (to be taken out of the current data sheet)

the following condition must be fulfilled:

with VS:

planned supply voltage

VS min: minimal supply voltage (to be taken out of the current data sheet)

Characteristic

Disassembly

-

Hold the probe on the sensor section (2) with one hand and turn the nut (4) carefully to the left with the other 

hand. Prevent torsion of the cable section (3) against the housing!

-

While screwing and pulling off the sensor section (2) from the cable section (3), hold it straight to prevent 

damages on the plugs.

Assembly

-

Check the o-rings (5, 6) and exchange damaged o-rings if necessary.

A

l

R

L

=

2

ρ

 

(

)

A

0.02

R

...

R

R

V

load

L2

L1

tot

+

+

+

=

min

S

tot

S

V

V

V

+

>

Pin Configuration

Electrical Connection

Cable Colours (DIN 47100)


Supply-
(only 3-wire)

White
Brown
Green

Shield

Yellow/green

Wiring Diagram

Summary of Contents for LM7 Series

Page 1: ...www winters com WINTERS INSTRUMENTS MANUFACTURER OF INDUSTRIAL INSTRUMENTATION LM7 SUBMERSIBLE TRANSMITTER INSTALLATION AND OPERATING MANUAL...

Page 2: ...pply 0 05 FSO 10 V Load 0 05 FSO kOhm Response Time 10 msec Thermal Error 0 2 FSO 10K Permissible Temperatures Medium 14 F to 158 F 10 C to 70 C Storage 13 F to 158 F 25 C to 70 C Short Circuit Protec...

Page 3: ...entially dangerous situation which may result in minor injuries CAUTION potentially dangerous situation which may result in physical damage NOTE tips and information to ensure a failure free operation...

Page 4: ...Handle this high sensitive electronic precision measuring device with care both in packed and unpacked condition There are no modifications changes to be made on the device Do not throw the package de...

Page 5: ...sor section 1 Remove the protection cap 2 with the other hand Removal with a tool recommended Hold the probe in a way that the protection cap points upwards Slide a small tool such as a screwdriver 8...

Page 6: ...ould cause problems this cable has to be checked with the following calculation with RL resistance of connecting cable in ohm p specific resistance in ohm mm m l cable length in m A cross section of c...

Page 7: ...who have read and understood the operating manual Y WARNING The device has to be used within the technical specifications only compare the data in the data sheet Placing out of service Y WARNING When...

Page 8: ...indicating the RMA Disposal The device must be disposed according to the European Directives 2002 96 EG and 2003 108 EG on waste electrical and electronic equipment Waste of electrical and electronic...

Page 9: ...WINTERS INSTRUMENTS Tel 1 800 WINTERS www winters com 9...

Page 10: ...NTERS Fax 403 723 6647 calgary winters com USA Houston Winters Instruments 5400 W Sam Houston Pkwy N Houston Texas 77041 Tel 281 880 8607 1 800 WINTERS Fax 281 880 8614 usasales winters com Asia Shang...

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