Download Digital Temperature Transmitter

Digital Temperature Transmitter
Head mounting, universally programmable for resistance thermometers,
thermocouples, resistance sensors and mV sensors
Characteristics
•
Input for 2-, 3- or 4-wire resistance thermometers;
thermocouples of type T, E, J, L, K, N, U, R,
S, B, W3 or W5; or mV sensors up to 800 mV
•
Configurable for PC, MS - Windows from 3.11
operating surface "DTM - Control"
•
Analog output 4 ... 20 mA, reversible,
2-wire technics
•
Temperature linear output for input signals for
resistance thermometers and thermocouples
•
Galvanic insulation
•
Optional
- protection, intrinsically safe
EEx ia IIC T4 / T5 / T6 or EEx ib IIC T4 / T5 / T6
Description
-
The configuration is done with the help of a PC and the configuration
set. The desired configuration is defined in the programme surface
"DTM-Control". A communication interface (programming unit)
conveys the data to the digital temperature transmitter. The
bidirectional communication also enables the presentation of the
measurement values on the PC.
.
Temperature transmitters installed in ex-areas are also configurable,
as the communication interface is designed as a protection barrier
between the ex- and the non-ex-area. Furthermore the PC is protected
from damage by a galvanic insulation. The configuration set is available
as supporting appliance.
.
The transmitters are delivered either with a standard configuration or
configured according to the specifications of the customer when this is
p o s s i b l e .
. .
+
+
3
2
4
22 mm
-
1
By means of configuration 16 input signals can be chosen among.
Temperatures from -200 °C to +2300 °C can be measured.
.
mA
6
mm
33 mm
49,5 mm
28,5 mm
Digital temperature transmitters are designed for universal use in
industrial installations. These measurement value transmitters
are characterized by the extensive possibilities for configuration,
for example for sensor type, measure span and error indication,
suitable and stable accuracy, galvanic insulation and immunity
to interference from electro magnetic influence (EMI-protection).
The compactly designed head mounting case can be fitted in
almost all DIN connecting heads.
.
TM-DIG1E.CDR
Technical data
Input
Measurement range (configurable):
Resistance thermometers 2-, 3- or 4-wire
-200 ... + 850 °C (Measure span min. 25K)
- 60 ... + 500 °C (Measure span min. 25K)
Thermocouples
-200 ... + 400 °C (Measure span min. 50K)
-100 ... +1000 °C (Measure span min. 50K)
-100 ... +1200 °C (Measure span min. 50K)
-100 ... + 900 °C (Measure span min. 50K)
-180 ... +1372 °C (Measure span min. 50K)
-180 ... +1300 °C (Measure span min. 100K)
-200 ... + 600 °C (Measure span min. 75K)
- 50 ... +1760 °C (Measure span min. 200K)
- 50 ... +1760 °C (Measure span min. 200K)
+400 ... +1820 °C (Measure span min. 200K)
Resistance sensors
0 ... 5 kOhm (Measure span 30 Ohm)
mV sensors
-10 ... 800 mV (Measure span 5 mV)
(Pt100)
(Ni100)
(type T)
(type E)
(type J)
(type L)
(type K)
(type N)
(type U)
(type R)
(type S)
(type B)
Configuration:
By means of PC and configuration set (available as supp.)
Software:
DTM - Control
Analog output (configurable):
4 - 20 mA, 20 - 4 mA programmable, 2-wire technics
Output signal:
Temperature linear
Output limit (configurable):
3,8 mA ... 21,5 mA (specification of use)
min. 3,8 mA ... max. 20,5 mA (NAMUR)
min. 3,6 mA ... max. 21,5 mA (not active)
Load:
RA < (UB - 9V)
0,021 A
Span drift:
< ± 0,05 % of measure span
Temperature effect:
< ± 0,01 % of measure span / K
Load effect:
< ± 0,01 % of measure span / 100 Ohm
Power supply effect:
< 0,005 % of measure span / V
Attenuation (configurable):
min. 0,5 s, 1 s ... 60 s
Measurement value updating:
approx. 2 / s
Indication signal
in case of sensor failure and
internal transmitter failure:
3,5 mA ... 23,0 mA (configurable substitute value)
> 21,0 mA (saturated signal)
< 3,6 mA (cut-off signal)
Power supply
Supply voltage:
9 - 36 VDC (no EEx-protection); 9 - 30 VDC (with EEx-prot.)
Insulation voltage:
1500 VAC, 60 s
Design
EEx-protection (optional):
EEx ia IIC T4 / T5 / T6 or EEx ib IIC T4 / T5 / T6
Ambient conditions
Operating- / storing temperature:
-40 ... +85 °C
optionally -50 ... +105 °C
Dimensions
Case:
Ø 49,5 mm x 28,5 mm
Fixing:
2 threads for M 4 (at 33 mm distance)
Material of case:
synthetic
Colour:
blue
Weight:
approx. 0,07 kg
Terminals:
Screw terminal on the top panel for max. 1,5 mm².
Screws captive.
Output
Accuracy
TM-DIG2E.CDR
Operating, adjustment instructions
Load diagram
Load RA
in Ohm
The allowable load is dependent on
the voltage of the loop supply.
1286
1000
714
0
0
9
24
30
(Ex)
36
UB in Volt
Configuration of terminals
Input
mV sensor
+
=
-
2
3
4 - 20 mA loop
Resistance thermometer /
Resistance sensor
in
4-wire
3-wire
2-wire
1
1
1
2
3
4
Thermocouple
1
+
-
3
4
2
2
*
2
1
-
mA
mA
3
3
3
4
4
+
* If the cold junction
compensation is done
with the help of an
external resistance
thermometer
(2-wire-switch):
Terminal 1 +
Terminal 4 -
+
4
+
*
Terminal connecting plan
Pay careful attention to the terminal connecting plan, especially when the digital temperature transmitter is installed in an EEx area.
Ex-Barrier
Input
Interrupt
connection
+
-
yellow *
green *
Transmitter
+ red / rot
- black / schwarz
Safe area
EEx area
+
red
black
+
+
+ +
4
43
3
mA
-
-
- -
2 2
1111
1
Supply
+ yellow / gelb
- green / grün
COM
DTM - System
Programmiereinheit
Digitales Temperaturmess - System
!
D
Müller Industrie - Elektronik GmbH Am kurzen Wege 2 a 31535 Neustadt
Telefon 05032/64003 Telefax 05032/64004
RS 232-C
Attention : " yellow * " and " green * " should be connected only if
the digital temperature transmitter is to be configured during running operation.
TM-DIG3E.CDR
Ordering code
W
D
X
X
X
X
No.
Configuration
Configuration Configuration Output
0
0
0
0
1
Basic
configuration
Thermocouple
type T
2
Pt100
2-wire
3
X
X
XXX
protection Error
output
Measurement
range
none
none
please
specify
Thermocouple 20 - 4 mA
type B
EEx ia IIC
T4 / T5 / T6
saturated
signal
e.g.
0...600 °C
Thermocouple
type E
Thermocouple
type W3
EEx ib IIC
T4 / T5 / T6
cut-off
signal
Pt100
3-wire
Thermocouple
type J
Thermocouple
type W5
4
Pt100
4-wire
Thermocouple
type L
5
Ni100
2-wire
Thermocouple
type K
6
Ni100
3-wire
Thermocouple
type N
7
Ni100
4-wire
Thermocouple
type U
8
Resistance
sensor
Thermocouple
type R
9
mV sensor
Thermocouple
type S
TM-DIG4E.CDR
4 - 20 mA
Subject to change, as of 09/99