background image

Before attempting to install the  

Sangamo Time Switch, please read  

these instructions carefully.

Introduction

These installation and user instructions cover 

ALL SOLAR VARIANTS in the S250 & Q550 

series – a range of reliable and highly accurate 

24-hour solar dial time switches which offer, 

according to the specific model, a range of 

features suited to individual applications. 

See Quick Reference Chart later.

1. The installation of this time switch should be 

carried out by a qualified electrician in 

accordance with current IEE wiring 

regulations.

2. Sangamo cannot be held responsible or 

liable for circuit connection other than those 

directly associated with our products.

3. To comply with safety requirements it is 

recommended that the time switch be installed 

with the base provided.

4. Terminals are for fixed wiring only. Provision 

must be made in the fixed wiring for a means 

of disconnection from the supply having a 

contact separation of at least 3mm on all 

poles. 

5. The time switch must be earthed. 

6. This product is suitable for ‘Ordinary’ 

conditions only. It is not protected against 

dripping or moisture and so should be housed 

in a suitable IP rated enclosure.

7. 

DO NOT REMOVE THE 2 SCREWS AT 

REAR OF SWITCH BASE

.

8. Rotate cover anticlockwise and lift clear.

9. Remove extended terminal cover (E) by 

unscrewing captive screw (F).

10. Withdraw plug-in mechanism from switch 

base, by grasping & pulling firmly on the dial.

11. Clear plastic from three fixing holes 

provided, removing debris.

a.Use no8 wood screws or 2BA countersunk 

screws for fixing.

b.Fix with suitable wall plugs for the surface 

intended.

c.When mounting the time switch on a 

metal surface, ensure the metal is adequately 

earthed to cover the 20A rating in accordance 

with IEE Regulations.

12. Strip back insulation by 6mm to ensure 

satisfactory connection with terminals. 

Connect switch to supply and load as in wiring 

diagrams above.

13. 

For S253 and Q553: 

– WHERE SEPARATE MOTOR & SWITCH 

CIRCUIT SUPPLIES ARE NOT AVAILABLE 

– FIT A LINK BETWEEN TERMINALS 1 & 3.

14. Connect earth lead to earth connection (T).

15. Plug mechanism into base.

16. Cut & trim breakouts in the extended 

terminal cover (E) as necessary if wiring 

routed on the surface. Refit extended terminal 

cover (E)  to base using captive screw (F). 

This will lock the mechanism inside the base.

17. Follow setting instructions for the time 

switch then refit cover.

It is important for accuracy the correct switch 

is installed for the latitude zone in the country. 

(see zone map later)

This type of dial automatically adjusts, once 

set, for seasonal changes in sunset and 

sunrise time during the year to suit lighting 

applications. Depending on the model , fixed 

operations can also be set.

1. Remove dial screw (B) and pull dial free 

from the mechanism. This makes adjustment 

easier.

2. 

DO NOT LOOSEN SERRATED CENTRE 

NUT.

3. Turn date wheel (D) in either direction, 

until correct calandar position is indicated in 

date aperture (C). Each month is subdivided 

into six equal divisions, representing 5 days. 

4. Sunset On & Sunrise Off operating arms 

(K) & (A) each have an operating pin at the 

centre point. This centre point equates to the 

Greenwich Meridan (or  0 deg Longitude) 

location in the country.

5. Adjustment for longitudinal variation can be 

made by moving the operating pins (N) along 

the slot on BOTH operating arms (K) & (A), up 

to a maximum of +/- 45mins from centre.  

To assist setting, each slot is marked with 15 

minute divisions. 

Locations EAST of Greenwich Meridian 

– move pins CLOCKWISE.

Locations WEST of Greenwich Meridian 

– move pins ANTI – CLOCKWISE.

(see zone map later)

6. Further adjustment  to advance the Sunset 

ON and delay the Sunrise OFF settings and 

increase the overall ON time to suit darker 

environment applications, ie Stairwells, may 

be possible.(Depending on the longitudinal 

variation used). Move operating pin (N) along 

each operating arm as follows.

ADVANCE – move pin ANTI -CLOCKWISE on 

the Sunset ON operating arm (K).

DELAY – move pin CLOCKWISE on the 

Sunrise OFF operating arm (A).

7. Refit dial onto mechanism ensuring dial hub 

engages cross-pin on centre shaft. Refit  dial 

screw (B) . Turn dial in direction of the arrow 

until pointer P indicates WINTERTIME(GMT).

8. 

DIAL SHOULD RUN SET TO 

WINTERTIME THROUGHOUT THE YEAR

.

1. Remove dial screw (B) and pull dial free 

from the mechanism. This makes adjustment 

easier.

2. 

DO NOT LOOSEN SERRATED CENTRE 

NUT.

3. Models : S251.14, S253.14, Q551.14 & 

Q553.14 – (DEFAULT  24:00) 

– Move Pin already fitted on Midnight Bridge 

(S) to required setting. 

4. Models : S251.13, S253.13, Q550.13, 

Q551.13 & Q553.13 – Transfer Pin  (N) to 

Midnight Bridge (S) 

Electromechanical Round Pattern Switch 

SOLAR

 Dial Installation & User Instructions

Q550, 

Q551 and Q553 

S251 and S253

 

Introduction

 

Installation

 

Setting a Solar Dial

 

Solar Dial : Fixed off operation   

 between 20:30 & 01:00

Отзывы: