Timeguard MEU11 Handbuch

Installation & Operating Instructions

Timer Modules

MEU11 – 24 Hour Module,

MEU17 – 7 Day Module

(Without Housing)

EMU11 – 24 Hour Module,

EMU17 – 7 Day Module

(With Housing – Giving panel mounting facility)

1. General Information

These instructions should be read carefully

and retained for further reference and maintenance.

2. Safety

• Before installation or maintenance, ensure the

3V DC supply to the timer module is switched off.

• It is recommended that a qualified electrician is

consulted or used for the installation of this timer

module and install in accordance with the current

IEE wiring and Building Regulations.

• Check that the total load on the circuit before

attempting to use the time module for your

OEM application.

3. Technical Specifications

General

• Requires an external diode, resistor and relay

to switch mains voltage.

• Manual Override – ON/OFF until next programme.

• Operating Temperature – 0°C to +55°C.

• Power Reserve – Non replaceable rechargeable

factory fitted battery, Metal Hydride, 1000 hours.

• CE Compliant.

MEU11 & EMU11 24 Hour Modules

• 24 Hour Time Period – 4 ON/OFF programmes.

MEU17 & MEU17 7 Day Modules

• 7 Day Time Period – 6 ON/OFF programmes,

daily, weekly, weekend or weekday options.

4. Contents

• 1x Timer module.

• 1x Panel mount bezel.

• 1x Tamper proof cover.

• 4x Surface mount stand offs (length 10mm).

• 2x Panel mount bolts.

• 2x Self-tapping screws (No. 4 x 5/8in)

for panel mount bolts.

• 2x Self-tapping screws (No. 6 x 3/8in)

for attaching bezel to EMU11.

5. Installation

3Panel Mounting

• For panel mounting (in panels up to 7.0mm

thick with the cut-out as shown in figure 2)

the EMU11/17 should be snapped into the bezel

supplied and secured in place by the use of the

2x No. 6 x 3/8 in self-tapping screws provided

(as shown in figure 3).

• When selecting a position for the unit, bear in

mind that a clearance behind the front panel

surface of 26.0mm is required over the full

area of the panel cut-out.

• The unit is designed to be mounted from the

front of the panel by the following procedure;

5.1 Insert the 2 bolts provided in the locations as

shown in figure 4.

5.2 Then insert the 2x No.4 x 5/8 in self-tapping

screws into the bolts and engage thread.

5.3 Make connections to the unit by wires

terminated in a Molex 4 way 7720 or similar

connector from behind the panel.

5.4 Insert the EMU11/17 complete with bezel into

the panel and tighten up the 2x No.4 self-

tapping screws. The ears on the bolts will rotate

as you tighten to clamp the unit to the panel.

Surface Mounting

• The EMU11/17 without bezel can be surface

mounted using the 4 securing holes as shown

in figure 5.

• The unit can be stood off from the mounting

surface by 10mm using the 4 spacers if required.

• Screws are not provided and it must be

remembered that if used in this way the

EMU11/17 must be installed within a housing

or cubicle to prevent access to the mains

terminations.

6. Connection (All models)

Single Resistor PSU (MEU11 & MEU17 only)

Two Resistor PSU – gives Optimum

EMC Performance (MEU11 & MEU17 only)

All Types Connections

Pin 1: Common.

Pin 2: Positive battery charge plus relay current.

Min 0.50 mA (No relay).

Pin 3: Relay connection.

Pin 4: Output & relay connection. NPN open

connector. Max 10 mA, 47 V A Molex 7720

4 way connector or similar is recommended.

MEU11 and MEU17 – Typical Usage

The examples in figs 6, 7 and 8 show the module

driving a Shrack 48V relay with power derived

from the mains. Type RP330048 or RP331048

(Changeover contracts). In these configurations the

relay pulls in at 47V and is held at above 24V with

mains voltages down to 200V.

EMU11 and EMU17 – Typical Usage

In this case the circuit in fig 6 can be used with a

10K, 3W resistor in place of the 15K, 2W resistor

shown and a 1.3W zener must be connected

between pins 1 and 2 of the module. The circuit

in fig 7 can be used with two 5K1, 1.5W resistors in

place of the 7K5, 1W resistors shown and a 1.3W

zener must be connected between pins 1 and 2

of the module. The circuit in fig 8 can be used

with a 330nF, X 250V AC capacitor instead of the

220nf capacitor shown and a 1.3W zener must be

connected between pins 1 and 2 of the module.

In all cases the zener is 47V and its cathode is

connected to module pin 2.

Capacitor PSU (MEU11 & MEU17 only)

7. Programming Instructions

Easy view 24 hour

digital clock/timer

display

Easy view 24 hour

digital clock/timer

display

Day indicator

1 = Monday

7 = Sunday

Programme

Button used

to select the

clock time and

the 4 ON/OFF

programme

times and to

review them

once set

Output Status

showing unit either

ON or OFF

Output Status

showing unit either

ON or OFF

Change

Button

sets Hours

and Minute

times and

self cancelling

override

Change

Button

sets Hours

and Minute

times and

self cancelling

override

Programme

Button used

to select the

clock time

and the

6 ON/OFF

programme

times and to

review them

once set

24 Hour Model

7 Day Model

67-057-97 (Issue 4)

or email helpline@timeguard.com

7.1 Programming Overview

To enter the programming mode, press and hold the

‘Program’ button for 2 to 3 seconds and then release

the button. Only two setting buttons are required

during the programming process. The ‘Change’ button

is used to set the hours and minutes, the ‘Program’

button is used to move to the next stage of the

programming process. Each time the ‘Program’ button

is pressed the display will flash either the hours or the

minutes in turn, starting with the clock then the first

ON time, first OFF time, second ON time and so on.

Note: Button pauses greater than 1 minute

during programming will result in an

automatic return to operating mode.

7.2 Normal Operating Mode

In normal operation the unit will display the correct

time with the colon flashing. The output status will

be shown by either ON or OFF on the display.

24 Hour Version 7 Day Version

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