LCI LT3500 Handbook

Handbook for the LT3500

Current Sensing Coin Operated Timer

Part Number 918-000-917 July 2011 Issue 3 (Version 50.0 )

Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Operational Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Service Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Programming Current Sense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Programming Credit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Audit Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Other Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Operating Meter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Money Counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Error Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Appendix I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Appendix II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Contact Details:

Leisure Controls International Ltd

Clump Farm Industrial Estate, Higher Shaftesbury Road,

BLANDFORD FORUM, Dorset. DT11 7TD. United Kingdom

Telephone General Enquiries: [phone]/455393
Telephone Technical Support: [phone]

Fax: [phone]/456410

E-mail General Enquires: [e-mail]
E-mail Technical support: [e-mail]

Web Site: www.lcigb.com

LT3500 Installation and Operating Instructions 1

Introduction

Operational Features

The LT3500 incorporates a programmable current sense facility which stops the timer

counting down when the connected appliance is turned off. This is particularly useful
with applications such as air conditioning and heaters in apartments and community
halls where the user may turn off the heating or cooling when vacating the premises.

Coin Entry (2)

Display (1)

Hidden
programming
buttons (6)

Optional key

over-ride (3)

Cash box (5)

Cover Lock (4)

(1) The 4 digit 7 segment display, in conjunction with the hidden programming
buttons, is used to program the LT3500, as well as showing time remaining and
mode of operation (see Figure 4).

(2) The coin entry accepts tokens or 20p, £1, €½, €1 coins.

(3) The optional key over-ride switch turns the timer output on permanently.

(4) Access for installation is via the cover lock.

(5) Cash box holding 100 coins.

(6) Hidden programming buttons (page 3).

Figure 1 Main Features

2 LT3500 Installation and Operating Instructions

Installation

1) Unlock the front cover of the meter and lift
upwards slightly and away from the wall bracket
(see Figure 2). Unplug the cover flying lead from
the wall bracket and remove front cover.

2) The LT3500 should be mounted on a smooth

vertical wall making sure access to the side coin
entry is not obstructed. Take care to mount the case
level in both the vertical and horizontal axes;
failure to do so may prevent the coin mechanism
from operating correctly. Mark positions of the

mounting holes using the wall bracket as a
template and drill suitable holes in the wall. For
solid masonry use a 7 mm masonry drill bit and
plug holes with wall plugs sufficient for 38 mm
long screws. For wooden surfaces use a 3.5 mm
drill bit and screws of a minimum length of 15
mm; longer screws are advised for very soft

surfaces. Fit the top two screws to the wall leaving the head of the screw
approximately 7 mm from the surface. Hang the wall bracket on the wall, check that
the bracket is level and tighten the screws. Fix the bottom of the wall bracket to the
wall using the two remaining screws.

3) The timer will require a fused double

pole switch for the mains input. Wire the
unit as shown in Figure 3 using
appropriately rated and approved cable
conforming to the relevant regional
standards. The meter can either be

connected to the supply via a cable fed
through the hole at the bottom left hand
side of the wall bracket or through the
back of the meter. Ensure the cables are
secured underneath the cable clamps.

L N E

MAINS

Front
cover

Wall Bracket

Figure 2 Removing Cover

E N L

LOAD

4) Plug the flying lead from the cover to

the connector located in the wall bracket and fit the front cover onto the wall bracket,
drop down slightly and lock into place.

5) Apply power and the meter will briefly show ‘Pxx.x’ then any credit remaining

where xx.x is the version number of the firmware and should be quoted if requesting
technical assistance.

IMPORTANT: PROTECT THE INPUT BY A FUSE RELEVANT TO THE LOAD

Figure 3 Wiring Diagram