Time Electronics 1070 User Manual

Time Electronics

1070 Decade Capacitance Box

Technical Manual

V1.1 08/04/11 Time Electronics Ltd

Botany Industrial Estate, Tonbridge, Kent, TN9 1RH

Tel: [phone] Fax: [phone]

Email: [e-mail]

Web Site: www.TimeElectronic s .com

2

Contents

1. S pecification ..................................................................................................... 2

2. Opera tion .......................................................................................................... 3

3. Guarantee & S ervicing ..................................................................................... 4

All Time Electronics' instruments are subject to continuous development and improvement and in

consequence may incorporate minor detail changes from the information contained herein.

1. Specification

Capacitance Range:

Accuracy:

Residual Capacitance:

Maximum Operation Voltage:

Power Factor:

Operating Temperature Range:

Stability:

Dimensions:

100ρF to 10µF in 100ρF steps

± 1%, ±5 ρF, measured at 1 kHz

38ρF ±5 ρF (2 terminal measurement)

63V A.C. (50 Hz, RMS). 100V D.C.

Better than 0.007 (at 1 kHz)

-10°C to + 50°C

1% per year maximum

215 x 100 x 120mm (incl. protective boot)
200 x 75 x 110mm (without)

Weight:

Optional Extras:

1kg (incl. protective boot), 0.64kg (without)

A carrying case is available for field and
industrial applications. (Code 9026)

If voltages above 70V DC or 30V AC (RMS) are present the optional terminal shroud
kit (Part No. 9722) must be fitted.

V1.1 Page | 2 1070 Technical Manual

3

2. Operation

The 1070 (model 9000) is a portable decade capacitance box, housed in a robust metal
case and designed for industrial, laboratory and education requirements.

The unit incorporates a colour coding system which divides the setting into three groups:

µF = Red ηF = White ρF = Yellow

The high accuracy obtained in the 1070 is achieved by the use of accurate, stable
capacitors. A thumbwheel switch provides precision selection of output capacitance.

A multiple gold contact switch arrangement ensures that should a contact fail, there is
always a back-up contact available.

To select a value simply dial up with the digit switches.
For example - to set 2.746µF

• 2 on the 1µF bank

• 7 on the 100ηF bank

• 4 on the 10ηF bank

• 6 on the 1ηF bank

Connection to the box can be made via 4mm shrouded plugs, as well as
standard plugs, bare wires, and spade terminals
black connect to the capacitance and the grey terminal connects to the case
for screening purposes. (new model safety terminals shown).

. Two connections red and

Note: Remember that all capacitance boxes have a residual capacitance, i.e. even when
the dials are set to zero there is still a capacitance value across the output. If you are
making precision measurements or recalibrating the instrument this residual value must be
subtracted from all measurements.

V1.1 Page | 3 1070 Technical Manual

4

3. Guarantee & Servicing

Guarantee Period
This unit is guaranteed against defects in materials and workmanship for a period of one
year from its delivery to the customer.

We maintain comprehensive after sales facilities and the unit can, if necessary be returned
to us for servicing. During this period, Time Electronics Ltd will, at its discretion, repair or
replace the defective items. For servicing under guarantee, the instrument type and serial
number must always be quoted, together with details of any fault and the service required.
The purchaser of the instrument must prepay all shipping charges. Time Electronics Ltd will
pay return shipping charges.

This guarantee is void if servicing has been attempted by an unauthorised person or agent.
If, during the guarantee period, failure is due to misuse or abuse of the unit, the repair will
be put in hand without delay and charged unless other instructions are received.

Please note that if you require a new UKAS Certificate during the warranty period, this will
be charged at the current rate on our price list.

Service After Guarantee Period

Even after the guarantee period has expired, Time Electronics Ltd., can still service your
instrument. As the manufacturer, we have the specialised knowledge needed to keep your
instrument in peak condition and we also maintain a comprehensive spare parts service.

Please enclose details of the service required and your full company details including a
contact name when returning for servicing.

Returning Instruments

When returning instruments, please ensure that they have been adequately packed,
preferably in the original packing supplied. Time Electronics Ltd will not accept
responsibility for units returned damaged. Please ensure that all units have details of
the service required and all relevant paperwork.

Send the instrument, shipping charges paid to:-

Time Electronics Ltd

Botany Industrial Estate, Tonbridge, Kent, TN9 1RH

Tel: [phone] Fax: [phone]

Email:

Web Site:

[e-mail]

www.TimeElectronics.com

V1.1 Page | 4 1070 Technical Manual

Disposal of your old equipment

1. When this crossed-out wheeled bin symbol is attached to a product it means the
product is covered by the European Directive 2002/96/EC.

2. All electrical and electronic products should be disposed of separately from the
municipal waste stream via designated collection facilities appointed by the
government or the local authorities.

3. The correct disposal of your old appliance will help prevent potential negative
consequences for the environment and human health.

4. For more detailed information about disposal of your old appliance, please contact

your city office, waste disposal service or return to Time Electronics.