Erma Electronic TM 2500 Manuel utilisateur
ERMA
Electronic GmbH
ERMA
Electronic GmbH
TM 2500
Digital Panel Meter
for Thermocouples and Pt100
Instruction Manual
Trademarks
All trademarks they are named ore portrayed in the text are registered trademarks of its
owner. The trademarks are recognized by ERMA-Electronic.
Warranty
For deliverd products our "Allgemeine Lieferungs- und Zahlungsbedingungen" are effective.
In no event ERMA-Electronic or its suppliers shall be liable for any other damages whatsoever
(including, without limitation, damages for loss of business profits, business interruption or
other pecuniary loss) arising out of or inability to use this product.
All products from ERMA-Electronic are warranted against defective material and workmanship
for a period of two (2) years from date of delivery. If it is necessary to return the product to ERMA,
the sender is responsible for shipping charges, freight, insurance and proper packaging to pre-
vent breakage in transit. ERMA's warranty does not apply to defects resulting from action of the
buyer, such mishandling, improper interfacing, operation outside of design limits, improper repair
or unauthorized modification.
Contents
1. Description ...........................4
2. Safety instructions .......................5
2.1. Explanation of symbols ..................5
3. Mounting ............................6
3.1. Place of operation .....................6
3.2. Panel mounting ......................6
3.2.1. Panel for switch board ...............6
3.2.2. Panel for mosaic raster ..............7
4. Electrical connections .....................8
4.1. General instructions ....................8
4.2. Hints against noisy environment ..............8
4.3. Connection and pin asssignment .............9
4.4. Connection of input signals ................9
4.4.1. Thermocouple ...................9
4.4.2. RTD (Pt100) 2-wire ................10
4.4.3. RTD (Pt100) 3-wire ................10
4.4.4. Input voltage 0 - 200 mV, 0 - 2 V .........10
4.5. Digital inputs ........................10
4.6. Connection of power supply voltage DC ..........11
5. Start-Up .............................11
6. Procedure of programming ..................12
6.1. Summary of the programming level ............13
6.2. Programming level for configuration P-00 .........14
6.2.1. Cold Junctiont ...................15
6.2.2. Scaling the display range .............16
6.3. Programming level for peak value memory P-02 .....17
6.4. Programming quick reference ...............18
7. Software functions .......................20
7.1. Filtering ..........................20
7.2. Peak value modes .....................20
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7.2.1. Peak value memory ................20
7.2.2. Peak value memory single ............20
7.2.3. Peak value memory double ............21
7.3. Display test ........................21
8. Technical Specifications ....................22
8.1. Electric Specifications ...................22
8.2. Mechanical Specifications .................22
8.3. Environmental conditions .................23
9. Ordering Information ......................24
10. Notices .............................25
Date : 03.02.99
TM2500A.PUB
Technical subjects to change
3 ERMA-Electronic GmbH
1. Description
The digital panel meter model TM 2500 is an universal temperature gauge for
connecting the following temperature-sensing head directly:
• Thermocouple type K, J, S, L, and R
• RTD (Pt100) 2-Wire / 3-Wire
In addition the digital panel meter is equipped with signal inputs for
• Voltages 0 - 200 mV DC, and 0 - 2 V DC
Standard hardware components
• Three digital inputs
Standard software functions
• Scaling of voltage inputs
• Rounding last digit
• Filtering
• differents peak value memories
• Displaytest
1. Description
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2. Safety instructions
This instrument is produced in accordance with Class II of IEC 348 and VDE 0411.
When delivered the instrument has been tested to meet all functions described.
Before installing the instrument please read the mounting and servicing instructions.
We have no liability or responsibility to customer or any other person or entity with
respect to any liability, loss or damage caused or alleged to be caused directly or
indirectly by equipment or software sold or furnished by us. Read the installation
instruction carefully. No liability will be assumed for any damage caused by improper
installation.
Inspect the instrument module carton for obvious damage. Be shure there are no
shippingandhandingdamagesonthemodulebeforeprocessing.Donotapplypower
to the instrument if it has been damaged.
ERMA’s warranty does not apply to defects resulting from action of the buyer, such
as mishandling, improper interfacing, operation outside of design limits, improper
repair or unauthorized modifications.
2.1. Explanation of symbols
Caution: Will be used at dangerous for life and health !
Attention: Will cause damage
Instruction: If not noticed, trouble may occur
Tip: Useful hints for better operation
Caution Attention Instruction Hint
2. Safety instructions
5 ERMA-Electronic GmbH
3. Mounting
3.1. Place of operation
Attention must be payed to the protection against humidity, dust and high tempera-
tures at the place of operation.
3.2. Panel mounting
3.2.1. Panel for switch board
• For mounting in switch boards, insert the case into the panel cutout (according to
DIN 43700: 45,0+0,6 x 22,2+0,3 mm) from the front, using a fresh gasket for sealing
as required. Click into and place at each side the two fastening clips (M2,5 x 50
mm).
• Tighten the screws alternately, using enough pressure to get good retention and
sealing at the panel.
45,0
57,2 5
48,0
+0,6
22,2 24,0
21,0
42,0
+0,3
panel cutout
DIN 43700
panel cutout
DIN 43700
11,0
3. Mounting
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3.2.2. Panel for mosaic raster
• Insert the case into one of the following mosaic-systems:
a) Mosaic-system 8RU (M50x25) from Siemens
b) Mosaic-system from SubklevGehäuse für Mosaikrastereinbau
57,2 5
11,0
48,0
24,0
21,0
42,0
mosaic-system:
Siemens 8RU (M50x25)
Subklev
3. Mounting
7 ERMA-Electronic GmbH
4. Electrical connections
4.1. General instructions
• It is forbidden to plug or unplug connectors with voltage applied
• Attach input and output wires to the connectors only without voltages
applied
• Cords must be provided with sleeves
• Attention must be paid that the power supply voltage applied will
agree with voltage noticed at the name plate.
• The instrument has no power-on switch, so it will be in operation as
soon as the power is connected.
4.2. Hints against noisy environment
All inputs and outputs are protected against noisy environment and high voltage
spikes. Nevertheless the location should be selected to ensure that no capacitive or
inductive interference can have an effect on the instrument or the connection lines.
It is advisable:
• To use shielded cables.
• The wiring of shields and ground (0V) should be star-shaped.
• The distance to interference sources should be as long as possible.
If necessary, protective screen or metal enclosures must be provi-
ded.
• Coils of relays must be supplied with filters.
• ParallelwiringofinputsignalsandACpowerlinesshouldbeavoided.
4. Electrical connections
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4.3. Connection and pin asssignment
All inputs and outputs are connectors designet as plug-in screws terminals.
.
Pin assignment:
01 digital input 1 / displaytest 05 signal input (+) / RTD (Pt100)
02 digital input 2 06 GND / RTD (Pt100)
03 digital input 3 / reset the peak value 07 supply voltage (-)
04 signal input (-) / RTD (Pt100) 08 supply voltage (+)
4.4. Connection of input signals
4.4.1. Thermocouple
12345678
12345
(-)
(+)
678
4. Electrical connections
9 ERMA-Electronic GmbH
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