Samson 5024-1 Series, 5024-1002, 5024-1001, 5024-1003 Mounting And Operating Instructions

Power Supply and Indicator Unit
Type 5024-1

Fig. 1 ⋅Type 5024-1

Mounting and
Operating Instructions

EB 9539 EN

Edition October 2003

Application

1 Application

In addition to displaying current data on the

LC display, two floating contacts indicate
The Type 5024-1 Power Supply and Indica­tor Unit is used to supply power to two-wire
transmitters (4 to 20 mA) such as Media 6
devices (Type 5006), Type 6051 Electrical
Transmitters for Pressure or CTMd pressure
sensors from the AB company and other de­vices.

when adjustable minimum and maximum

values are reached.

The direction of action of the alarm contacts

over relays that open or close when the

minimum or maximum value is reached

together with the corresponding illumination

of an LED is selectable over switches.

Technical data

Power Supply and Indicator Unit

Power supply 230 V, 45 to 60 Hz 115 V, 45 to 60 Hz 24 V, 45 to 60 Hz

Power consumption Approx. 1.8 VA

Measuring circuit 4 to 20 mA

Transmitter power supply 24 V at 20 mA

Output 2 floating contact alarms, max. 250 V AC/3 A

Contact rating

Perm. ambient temperature 0 to 50 °C

Degree of protection IP 54

The device may only be mounted, started up or serviced by fully trained and



qualified personnel, observing the accepted industry codes and practices.
In these mounting and operating instructions, the term experienced personnel
refers to individuals who are able to evaluate the responsibilities assigned to
them as well as recognize potential hazards due to their specialized training,
knowledge, and experience as well as their special knowledge of the relevant
standards.

Proper shipping and appropriate storage are assumed.



Type 5024-1001 5024-1002 5024-1003

$

≥

10

with AC voltage and max. 300 Ω re si sti ve lo ad

2

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Note:

The device with a CE marking fulfills the requirements of the European Press­ure Equipment Directive 97/23/EC as well as the Directive 89/336/EEC.
The declaration of conformity can be viewed and downloaded on the Internet
at http://www.samson.de.

Installation

2Installation

Mount the device directly in the control
room or to a wall using the supplied mount­ing clips, nuts and bolts.
Refer to the dimensional diagram on
page 5 for the distances between holes.

2.1 Electrical connections

For electrical installation, you are re­quired to observe the relevant elec­trotechnical regulations and the acci­dent prevention regulations that
apply in the country of use.
In Germany, these are the VDE regu­lations and the accident prevention
regulations of the employers lia­bility insurance.

Connect wires to terminals over the cable
glands as illustrated in Fig. 2.

2.1.1 Determining the direction of
action for the contact alarms

When connecting the relay contacts c,
and no for A1 and A2 (see Fig. 2 for switch­ing function), the direction of action must be
set at the selector switches A1 and A2 (lo­cated at the top right-hand corner of the
lower board) as follows:

Point on switch is visible:

minimum alarm

When

is reached, the relay

is energized and the LED is illuminated.

Point on switch is not visible:

When the

maximum alarm

is reached, the
relay is energized and the LED is illumi­nated.

nc

_

+

Transmitter supply

LNPE

c nc no c nc no

A1 A2

Network

Fig. 2 ⋅Terminal assignment and switching function

Relay contacts

Switching function:

no

c

nc

c common connection

nc normally closed
Contact opens when the relay
is energized

no normally open
Contact closes when the relay
is energized

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3

Operation

3Operation

3.1 Positioning the decimal point
and selecting label with enginee­ring units

A jumper located on the top right-hand cor­ner of the display board can be installed at
four different positions, depending on
where the decimal point should be posi­tioned.
Refer to Fig. 3 for the setting.

Select the required multiplication factor and
the appropriate engineering units from the
supplied adhesive label and stick them on
the front cover below the display.

Decimal point

4...20mA

Test

Δ

( )p

3.2 Setting the display

The display can be set in combination with
a rheostat of R = 10 kΩ and an ammeter
or, alternatively, a pressure transmitter or
differential pressure transmitter that has al­ready been adjusted.
An ammeter can be connected to the TEST
terminals for the transmitters.

3.2.1 Adjusting zero

Required for this adjustment:
2-wire signal from, for example, the trans­mitter must be 4 mA

Turn potentiometer N on the display



board until the required initial value ap­pears on the LC display.

I . X . X . X

Without decimal point

Direction of action
Relay

A2

A1 A2

A1

LED

mA

mA

Fig. 3 ⋅Display board

4

EB 9539

R = 10 kΩ

_

A1 A2

+

Switches and potentiome­ter for switching point of
max./min. alarm

NSP

Zero

Initial
Fine

Span

Operation

3.2.2 Adjusting span:

Required for this adjustment:
2-wire signal from, for example, the trans­mitter must be 20 mA

First adjust the rotary switch SP (initial



adjuster), then the potentiometer SP (fine
adjuster) until the required final value ap­pears on the LC display.

Dimensions in mm

122.5
110

3.3 Setting the contact alarms

Set the contact alarms A1 and A2 over the
selector switch and potentiometer located at
the bottom of the display board (Fig. 3).
To set the required switching point, adjust
the corresponding selector switch for A1 or

point not visible

A2 to
justed limit value then appears on the LC dis­play.
Set the associated potentiometer until the re­quired limit value appears on the display.
Reset the selector switch to
display value supplied by the transmitter.

. The currently ad-

point visible

to

70

90

M20x1.5

128

22

56

120.5

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5

SAMSON AG ⋅ MESS- UND REGELTECHNIK
Wei smül lers tra ße 3 ⋅ 60314 Frankfurt am Main ⋅ Germany
Phone: [phone] ⋅ Fax: [phone]
Internet: http://www.samson.de

EB 9539 EN

S/Z 2007-08