Kessler-Ellis Products 532K Manual de usuario

http://www

.kep.com

532K

Process Display

Temperature display for

J, K and N thermocouples

99906 11/05/03

KESSLER-ELLIS PRODUCTS

10 Industrial Way East

Eatontown, NJ 07724

800-631-2165 • 732-649-7100

Installation and Operating Manual

1Short description ............................................................... 2

2Safety instructions and warnings .....................................2

2.1 Use according to the intended purpose .....................2

3Mounting..............................................................................3

3.1 Installation .................................................................. 3

3.2 Electrical connection .................................................. 3

4Start-up................................................................................3

5Programming.......................................................................3

5.1 Switching to programming ........................................ 3

5.2 Changing the parameter setting ............................... 4

5.3 Saving the parameter setting ..................................... 4

5.4 Programming ............................................................ 4

5.5 End of programming ................................................. 5

6Operation.............................................................................7

6.1 Switching the display during operation .....................7

6.2 Saving the momentary value ..................................... 7

7Error and alarm messages .............................................. 7

8General technical features ............................................... 8

8.1 Electrical features ..................................................... 8

8.2 Mechanical features .................................................. 8

8.3 Environmental conditions .......................................... 9

9Scope of delivery.................................................................9

10 Order code..........................................................................9

11 Dimensions..........................................................................10

Note :

The fields with a grey background contain the

factory-set default values.

Summary

– Subject to change without prior notice –

2 Safety instructions and warnings

Only use this display

– in a way according to its

intended purpose

– if its technical condition is

perfect

– adhering to the operating

instructions and the general

safety instructions.

1. Before carrying out any installation or maintenance

work, make sure that the power supply of the digital

display is switched off.

2. Only use this digital display in a way according to

its intended purpose.

3. If its technical condition is perfect.

4. Adhering to the operating instructions and the

general safety instructions.

5. Adhere to country or user specific regulations.

6. The digital display is not intended for use in areas

with risks of explosion and in the branches exclu-

ded by the standard EN 61010 Part 1.

7. The digital display shall only operate if it has been

correctly mounted in a panel, in accordance with

the chapter “Main technical features”.

1 Short description

The digital display only may be used as a panel-moun-

ted device. Applications of this product may be found in

industrial processes and controls, in the branch of the

manufacturing lines for the metal, wood, plastics,

paper, glass, textile, etc., processing industries.

Overvoltages at the terminals of the digital display must

be limited to the values of overvoltage category II.

If the digital display is used to monitor machines or pro-

cesses in which, in case of a failure of the device or an

error made by the operator, there might be risks of

damaging the machine or causing accidents to the ope-

rators, it is up to you to take appropriate safety measu-

res.

2.1 Use according to the intended purpose

This digital display is an easy-to-use, microprocessor-

controlled device for the display (and the acquisition) of

measured temperature values. The temperatures are

measured by means of J, K and N thermoelectric cou-

ple sensors. They can display either the current mea-

sured value, the maximum value or the minimum value.

In case of power switch-off, the maximum and mini-

mum values are stored in an EEPROM. The values are

restored as soon as the display is powered again. The

Latch input is isolated electrically from the signal input

by means of an optocoupler. It allows storing the cur-

rent measured value.

The supply voltage (10 .. 30 V DC) is isolated electri-

cally from the signal input by means of a DC/DC con-

verter.

3.2 Electrical connection

1234567

n.c

3.2.2 Supply voltage and Latch input

connection

1234567

4. Start-up

After switching on the supply voltage:

1. a display test is carried out

(Duration: 2 seconds)

2. Device type and software

version are displayed

(Duration: 2 seconds)

3. the selected probe is

displayed

(Duration: 2 seconds).

4. the display is ready to

operate and the measured

value is displayed.

5. Programming

5.1 Switching to programming

To switch to the programming mode:

1. switch the power supply of the device off, press

simultaneously both keys on the front side, and then

switch the power supply on again.

⇑⇑

2. The display shows the following message.

3. release both keys. The first parameter to be set

appears on the display. The display switches every

second between the following messages

1 s

4. press the left key to stop the display from

switching. The last programmed parameter setting

is displayed.

1. The digital display shall not be installed near to con-

tactors or motor starters.

2. We recommend the use of wire end ferrules in order

to avoid short-circuits between adjacent terminals.

3. In order to keep the interferences at the measuring

input as low as possible, the signal and power sup-

ply wires must be routed separately.

4. Use shieded cables for all signal/probe wirings and

avoid routing the signal/probe wirings parallel to

each other. The shield shall only be grounded at one

point in order to avoid ground loops.

3.1 Installation Important note:

Before carrying out any installation or maintenance

work, make sure that the power supply of the digital

display is switched off.

3 Mounting

3.2.1 Thermoelectric couple sensor

3 Latch input

2 0 V DC (GND)

1 10 ... 30 V DC

Note :

The fields with a grey background

contain the factory-set default

values.

5.2 Changing the parameter setting

1. press the right-hand/grey key to change the

parameter setting by one value at a time

⇑

2. to input numerical values, select first the decade with

the left-hand/red key

⇑

3. the decade blinks

4. set now the numerical value using the right-

hand/grey key

⇑

5. to reach the following decade, press the left-

hand/red key

⇑

6. if negative numerical values are required, set the left

decade to “–” or “–1”.

5.3 Saving the parameter setting and

switching to the following parameter

⇑⇑

2. and press simultaneously the right/grey key.

1. keep the left/red key pressed

5.4 Programmng the adjustable parameters

5.4.1 Input signal type

Range

Selection in the menu

Thermoelectric couple J

Thermoelectric couple K

Thermoelectric couple N

5.4.2 Reference point compensation

A thermoelectric temperature measurement measures

a (thermoelectric) voltage generated by a thermoelec-

tric couple. The value of the thermoelectric voltage

depends on the temperture difference between the

measured point and the reference point.

In order to define accurately the temperature at the

measured point, the temperature of the reference point

must be constant and/or known. To do so, the internal

and external reference points are differentiated.

For the internal reference point compensation, the devi-

ce is fitted with an internal temperature sensor that

measures the current temperature of the terminal. This

temperature is used to compensate the measured

thermoelectric voltage. This measuring method requires

to connect the sensor with the terminal of the display

by means of appropriate compensation lines. These

terminals are the internal compensation point.

When using the external reference point compensation,

the temperature of the reference point is maintained at

a constant and known value by means of appropriate

measures. The temperature sensor ist connected with

the device, which is set to the constant temperature of

the reference point, by means of a simple copper wire.

Reference point compensation

......

5.4.3 Decimal point

Decimal point

Resolution 0,1 °C/0,1 °F

Resolution 1 °C/1 °F

5.4.4 Temperature unit

Selection in the menu

Display in °C

Display in °F

Selection in the menu

Unit

......

5.4.5 Correction value

Setting the correction value

Inputting a correction value allows acting upon the

displayed result. These correction values may be positive or negative. The input is always made with one

decimal place.

Correction value in 0,1 °C/0,1 °F,

depending on the unit selected

Selection in the menu

5.4.2 Reference point compensation (Continued)

Selection in the menu

Internal reference point

compensation

External reference point

compensation

Adhere to point 5.4.2.1

5.4.2.1 External reference point temperature

External reference point

temperature

Selection in the menu

Input of the known value of the external reference

point temperature in 0,1 °C/0,1 °F, according to the

temperature unit set

5.5 End of programming

When programming is finished, end the prorgamming

routine as follows:

Programming restarts.

The set values can be

checked and modified.

5.4.6 Maximum value acquisition

The maximum value may be saved and consulted

during operation (see 6.1)

Maximum value

acquisition on

Maximum value

acquisition off

5.4.6.1 Resetting the maximum value

This allows defining whether the maximum value can

be reset during operation or not. However, the maxi-

mum value can only be reset if the maximum value

display is the active function (see 6.1). If the maximum

value is reset, the current measured value becomes

the new maximum value.

The maximum value can

be reset using the red

key

The maximum value

cannot be reset

5.4.7 Minimum value acquisition

The minimum value may be saved and consulted

during operation (see 6.1)

Minimum value

acquisition on

Minimum value

acquisition off

5.4.7.1 Resetting the minimum value

This allows defining whether the minimum value can be

reset during operation or not. However, the minimum

value can only be reset if the minimum value display is

the active function (see 6.1). If the minimum value is

reset, the current measured value becomes the new

minimum value.

The minimum value can

be reset using the red

key

The minimum value

cannot be reset

Selection in the menu

Programming is finis-

hed. The set values are

used in operation.

Selection in the menu

In case of a High Signal at the Latch input, the current

measured value is frozen on the display. The minimum

6.2 Saving the momentary value

(Display-Latch)

and maximum value acquisition continues operating in

the background.

7 Troubleshooting and alarm messages

Measuring range overflow

Ranges see 8.1

Measuring range underflow

Ranges see 8.1

Probe broken or input

signal exceeds the

allowable range

If the display does not light up, check the supply vol-

tage or the power supply cables. Do not open the hou-

sing by force.

6. Operation

press the right-hand/grey key to select among the follo-

wing functions:

–current measured value

–minimum value

–maximum value.

Press the key once to display the designation of the

active display function for 2 seconds. If, during this

time, the right-hand grey key is pressed a second

6.1 Switching the display during operation time, the display switches to the following display func-

tion. This is confirmed by a 2-second display of the

designation of the new function. After these 2 seconds,

the display shows, depending on the selection, the

maximum value, the minimum value or the current

measured value.

⇑

1. Current measured value, press once the

right-hand/grey key

for 2 s:

after 2 s

⇑

2. Minimum value (when active), press once the

right-hand/grey key

for 2 s:

after 2 s

⇑

3. Maximum value (when active), press once the

right-hand/grey key

for 2 s:

after 2 s

⇑

4. Current measured value, press once the

right-hand/grey key

for 2 s:

after 2 s

7.1 Display does not light up

7.2 Measuring rang overflow or underflow

7.3 Input problems

8 Main technical features

Operation:

by means of two front panel keys

DIsplay:

5-digit display, red 7-segment LED’s,

Height of the figures 8 mm

Display range:

(see temperature range), with leading zeros

suppression Measuring range overflow, indica-

ted by ooooo on the display.

Measuring range underflow, indicated by uuuuu

on the display.

8.1 Electrical features

Input: Thermoelement-sensor

J (Fe-CuNi)

K (Ni-CrNi)

N (NiCrSi-NiSi)

Temperature ranges:

after DIN IEC 548

J (Fe-CuNi) -210,0 °C ... +1200,0 °C

-346,0 °F ... +2192,0 °F

K (Ni-CrNi)

-200,0 °C

... +1372,0 °C

-328,0 °F ... +2501,6 °F

N (NiCrSi-NiSi)

-200,0 °C

... +1372,0 °C

-328,0 °F ... +2372,0 °F

Resolution:

0,1°C (0,1°F) or 1°C (1°F)

Reference point compensation:

internal or external (programmable)

Reference point error:

+/–1,0 °C typ.

+/–3,0 °C max.

Linearity error:

< 0,4 % for the whole measuring range at an

ambient temperature of 20°C

Temperature drift:

0,1 K/Kambient

Measuring rate:

5 measurements/second, fixed

Display refresh:

1 ... 2 times per second

Display Latch input:

DIsplay stop for the current measured value,

active for log. 1

Switching log. 0: 0 ... 2 VDC

level log. 1: 4 ... 30 VDC

Supply voltage:

10 ... 30 V DC, electrically separated,

with Verpolschutz

Current consumption:

max. 40 mA

Test voltage:

500 Veff; 50/60 Hz; 1 min

Data backup:

EEPROM

8.2 Mechanical features

Housing:

Housing for control panel 48 x 24 mm

according to DIN 43 700, RAL 7021

Dimensions (W x H x D):

48 x 24 x 66 mm

Panel cut-out (W x H):

45+0,6 x 22,2+0,3 mm

Mounting depth:

approximately 59 mm

Weight:

approximately 50 g

Protection level:

IP 65 (on the front side)

Connection:

Screw terminal, RM 5.08, 7 poles

Connection diameter:

single-wire 0,14 .. 1,5 mm2

thin wire 0,14 .. 1,5 mm2

wire dimensions AWG 26-16

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