Sangamo RPTS S250, RPTS Q550 Installation & User's Instructions

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 specic 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 qualied 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 xed wiring only. Provision
must be made in the xed 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 rmly on the dial.

11. Clear plastic from three xing holes

provided, removing debris.
a.Use no8 wood screws or 2BA countersunk

screws for xing.
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. Ret 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 ret 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 , xed

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. Ret dial onto mechanism ensuring dial hub
engages cross-pin on centre shaft. Ret 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 tted 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

Unscrew & Transfer the Operating pin (N) from
operating arm (A) onto the midnight bridge (S),
to enable a xed off to be set as an alternative

to sunrise.
Note orientation of Operating pin prior to
transfer & ensure when re-positioned it is

securely xed using screw and will operate

the outer lever mechanism.

5. Midnight bridge (S) is calibrated in 15
minute intervals. Set Operating Pin at any time

between 20.30 & 01.00, however see point 6.

6. For correct unadjusted all year operation of
the Sunset operating arm (K) and the xed off
on the midnight bridge (S), the xed off should
be set after 22.30. Fixed off’s set prior to this
will interfere with sunset operating arm (K)

during April – September and cause the switch
to operate for a short period when not re­quired.

7. Ret dial onto mechanism ensuring dial hub
engages cross-pin on centre shaft. Ret dial
screw (B) . Turn dial in direction of the arrow
until pointer (P) indicates WINTERTIME(GMT).

8. All xed times need to be adjusted for the
winter/summer clock changes to be uniform

during the year.
March – Move time setting back, ie 24:00 to
23:00
October – Move time setting forward, ie 23:00
to 24:00

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

Q553.14 (DEFAULT 05:00)

1. The adjustment is made to the rear of the

solar dial. Remove dial screw (B) and pull dial

free from the mechanism to gain access.

2. DO NOT LOOSEN SERRATED CENTRE

NUT

3. Slacken 8BA nut on underside of sector
bridge and move spring tensioned lever 2,
along sector bridge 1, until slot 4 coincides
with time required. The Sector bridge is
calibrated in 15 minutes intervals. Tighten
8BA nut.

4. Ret dial onto mechanism ensuring dial hub
engages cross-pin on centre shaft. Ret dial
screw (B) . Turn dial in the direction of the
arrow until pointer (P) indicates

WINTERTIME(GMT).

5. Fixed operation will be obtained at the time
set except in summer where the sunrise
operating arm (A) operates earlier.

6. All xed times need to be adjusted for the
winter/summer clock changes to be uniform

during the year.
March – Move time setting back, ie 05:00 to
04:00
October – Move time setting forward, ie 04:00
to 05:00

Model: Q550.13

1. Day omitting device (D) prevents ‘On’

operation occurring on a chosen day or days
of the week.

2. To OMIT operations on a given day, turn
insert 1 clockwise on a given day , with a

screwdriver, until ARROWHEAD POINTS

OUTWARDS.

4. Ensure dial is showing the correct time.

Note the position of the operating arm (K)
which operates the day omitting device (D)

once every 24 hours. If this operating arm has

PASSED the Day omitting device (D)

– turn black disc so the CURRENT day is set.

If this operating arm (K) has NOT REACHED
the Day omitting device (D) – turn black disc to
the PRECEDING current day.

SERVICE AND WARRANTY

Guarantee : As shown on product identication label. Any tampering or misuse will invalidate this

guarantee.

This product must meet Waste Electronic and Electrical Equipment Regulations (WEEE) for suitable

environmental recycling, recovery and/or disposal. End of life products should be handled in line with local
regulations. Alternatively return End of life product to Sangamo for correct disposal.

CUSTOMER CARE POLICY

As part of Sangamo’s continuous improvement program, the Company operates a Customer Care
Policy. This means that we welcome your comments and complaints, as it can help us to improve our
services to you, our customer.

Due to our policy of continuous product improvement and development, the specications in this
guide may be subject to change without prior notice.

Sangamo Limited

Industrial Estate, Port Glasgow,

Renfrewshire, PA14 5XG

Tel: [phone] Fax: [phone]

Email: [e-mail]

Web: www.sangamo.co.uk

143700_A

WEE/JH0069TY

MODEL DIAL TEXT BATTERY OMIT BASE PINS SWITCH TYPE SPECIFICS MAX OPS

S251 SOLAR BLACK NO 3 SPST

FIXED ON & OFF

2
4

S253 SOLAR BLACK NO 4 SPST

FIXED ON & OFF

2
4

Q550 SOLAR RED YES ON 3 SPST 2

Q551 SOLAR RED YES 3 SPST

FIXED ON & OFF

2
4

Q553 SOLAR RED YES 4 SPST

FIXED ON & OFF

2
4

Quick Reference Chart

Current, Voltage, Frequency As shown on product identication label

Ambient Temperature 0-50 deg C

Live Parts Enclosed

Shock Protection Class 1

Dirt & Moisture Protection IP20

Contacts Micro-Disconnection

Battery Reserve

(Q550 series only)

100 hours (fully charged). NiMH rechargeable cell.
The battery is soldered into a PCB. After the battery’s
expectancy life of 10 years the timeswitch will cease to operate

or run slow, depending on the environment.
A battery replacement kit is available to order.

Cycle/Channel

24 hour/1 channel

Summer/Winter Time Change

Not required set dial always to wintertime. (Note: any xed times

must however be adjusted to be uniform throughout the year)

Clock Accuracy

+/- 5mins per year @ 23 degC (Quartz)

Max Cable Size

6.0mm sqr

Power Consumpton

0.6W

Noise

A perpetual ticking noise is produced as internally a stepper
motor drives the gear train.

Specication

Setting Day Omit Device

when fitted

Solar Dial: Fixed Early

Morning ON operation
between 03:15 & 08:30