3b-scientific Protective Adapter, 3-Pole User Manual download pdf

3B SCIENTIFIC

PHYSICS

Protective Adapter, 2-pole 1009961

Protective Adapter, 3-pole 1009960

Instruction Sheet

06/12 NF/ALF

1 Connector socket: cathode

1 / 2 Connector sockets: heater filament

3 / 5 Connector sockets: heater filament

4 Connector socket cathode

1. Safety instructions

The protective adapter conforms to safety regu-

lations for electrical measuring, control and labo-

ratory equipment as specified in DIN EN 61010

Part 1. It is to be operated in dry rooms as ap-

propriate for the use of electrical equipment.

Safe operation of the adapter is guaranteed as

long as it is used as stipulated. However, there

is no guarantee of safety if the adapter is used

incorrectly or carelessly.

If there is any suspicion that the adapter can no

longer be operated without risk (e.g. if visible

damage is detected), the adapter must immedi-

ately be withdrawn from use and secured in

such a way as to prevent its inadvertent opera-

tion.

• Do not subject the adapter to high humidity,

extreme temperatures or heavy shocks.

• Only use safety experiment leads for con-

necting circuits.

2. Description

The 2-pole or 3-pole protective adapters are for

connecting the heater voltage for the D-series

electron tubes via safety experiments leads and

also provide protective circuitry to prevent ex-

cess voltage across the cathode heating ele-

ment causing damage to the fragile filament.

A built-in relay cuts out when the heater voltage

reaches approximately 10.5 V DC or 8.5 V AC

and turns back on when the heater voltage has

fallen back into range again.

The pin marked with a minus sign is connected

to the brown socket. On the 3-pole, the red

socket is connected to a 2-mm pin.

2-pole or 3-pole adapters should be chosen

depending on the tube in use (for a list of which

tubes match which adapter, see section 4).

1 2

3B SCIENTIFIC 1
PHYSICS 1

Summary of Contents

Page 1 - PHYSICS

3B SCIENTIFIC® PHYSICS 1 Protective Adapter, 2-pole 1009961 Protective Adapter, 3-pole 1009960 Instruction Sheet 06/12 NF/ALF 1 Co

Page 2

Elwe Didactic GmbH ▪ Steinfelsstr. 5 ▪ 08248 Klingenthal ▪ Germany ▪ www.elwedidactic.com 3B Scientific GmbH ▪ Rudorffweg 8 ▪ 21031 Hamburg ▪ Germany

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3b-scientific Protective Adapter, 3-Pole User Manual

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