background image

IM-P402-62  AB Issue 5

2

1. General safety information

Fig. 1

LT2010

>100%

>0%

Power on

Span

Span adjust

Zero adjust

Zero

Clamping screw

Clamping screw

Your attention is drawn to Safety Information Leaflet IM-GCM-10 as well as to any
National or local regulations.

Safe operation of the product depends on it being properly installed, commissioned
and maintained by a qualified person in compliance with the operating instructions.

It is essential to comply with  general installation and safety instructions for pipeline
and plant construction, as well as to make proper use of tools and safety equipment.

The product is designed and constructed to withstand the forces encountered
during normal use. Use of the product for any other purpose, or failure to install the
product in accordance with these Installation and Maintenance Instructions, could cause
damage to the product, will invalidate the        marking, and may cause injury or fatality
to personnel.

Warning

Isolate the mains supply before unplugging the transmitter since hazardous voltages will
be exposed on the transmitter base. This product complies with the requirements
of Electromagnetic Compatibility Directive 89 / 336 / EEC by meeting the standards of:

-

BS EN 50081-1 (Emissions) and

-

BS EN 61000-6-2 (Immunity).

The following conditions should be avoided as they may create interference above
the limits specified in BS EN 61000-6-2 if:

-

The product or its wiring is located near a radio transmitter.

-

Excessive electrical noise occurs on the mains supply. Power line protectors (ac)
should be installed if mains supply noise is likely. Protectors can combine filtering,
suppression, surge and spike arrestors.

-

Cellular telephones and mobile radios may cause interference if used within
approximately 1 metre (39") of the product or its wiring. The actual separation distance
necessary will vary according to the surroundings of the installation and the power
of the transmitter.

If this product is not used in the manner specified by this IMI, then the protection
provided may be impaired.

Summary of Contents for LT2010

Page 1: ... Maintenance Instructions IM P402 62 AB Issue 5 4025351 5 1 General safety information 2 General product information 3 Installation 4 Settingupthetransmitter 5 Wiring diagrams 6 Commissioning 7 Maintenance 8 Fault finding LT2010 100 0 Printed in the UK Copyright 2003 ...

Page 2: ...e injury or fatality to personnel Warning Isolate the mains supply before unplugging the transmitter since hazardous voltages will be exposed on the transmitter base This product complies with the requirements of Electromagnetic Compatibility Directive 89 336 EEC by meeting the standards of BS EN 50081 1 Emissions and BS EN 61000 6 2 Immunity The following conditions should be avoided as they may ...

Page 3: ...e very different turbulence conditions found in tanks and high output boilers The LT2010 is set up before installation to suit the mains supply voltage and to provide the required functions using internal switches See Setting up the transmitter Section 4 Calibration can be altered without removing or dismantling the unit using the zero point and full scale span potentiometers on the front panel Ma...

Page 4: ...screwed directly to a chassis plate Caution Allow 15 mm spacing between multiple units for air circulation The transmitter is for installation Category II Overvoltage category and must be installed in accordance with IEC 60364 or equivalent The transmitter and all connected circuits must have a common isolation system which meets the relevant requirements of IEC 60947 1 and IEC 60947 3 or equivale...

Page 5: ...e with a temperature transmitter for example set switch 1 and 2 to ON 4 5 Inverse output Switch 3 The transmitter is supplied set so that a rising level at the probe will give a rising output from the transmitter If a falling transmitter output is required with a rising input as when using a differential pressure transmitter for level monitoring set Switch 3 to OFF 4 6 Wave filter Switch 8 This fe...

Page 6: ... from electric shock under a single fault condition This product has double insulation and therefore does not require a protective earth A functional earth is used in order for the product to operate In this application the earth tank boiler shell is used as the common of the probe preamplifier It also provides a sink drain for any electrical interference Ensure that the screen is connected to the...

Page 7: ...itter powered from the LT2010 Additional unit Multiple transmitters Several transmitters can be connected to a single probe if required Connect wiring as shown in the diagram Ensure resistance from probe body to pipework boiler shell is less than 1 W Links on preamplifier provide sensitivity selection see preamplifier IMI The earth pin is internally connected to the PA20 body and earthed by the LP...

Page 8: ...ing and inspection General guidance is given in Health and Safety Executive Guidance Note PM5 For specific instructions for the Spirax Sarco system please see separate literature Available spares Spare fuses Stock No 4033380 Set of 3 Most faults which occur on commissioning are due to incorrect wiring or setting up In the case of problems the following checklist may be helpful Mains on LED not lit...

Reviews: