Kessler-Ellis Products 532K User manual

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

1
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
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
3.2 Electrical connection
1234567
+
n.c
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.
4
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
......
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

6
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
Selection in the menu
Selection in the menu
Selection in the menu
Programming is finis-
hed. The set values are
used in operation.
Selection in the menu

7
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
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