Dynisco MDT 420 Bedienungsanleitung
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MDA / LDA / TDA Series
Pressure transducers for high temperatures and high
pressures
Operang Manual
From lab to production,
providing a window into the process
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Rev: 1117P/N: n/a ECO: n/a
Table of Contents
Content Chapter Page Icon
General
Notes on safety
Technical data
Funcon
Transport/delivery
Installaon
Commissioning
Maintenance
Accessories
Troubleshoong
- Declaraon
of conformity
1
2
3
4
5
6
7
8
9
10
11
3
5
6
13
14
16
24
26
28
29
30
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1. General
1.1 Important informaon
1.2 Copyright
1.3 Explanaon of icons
1.4 Abbreviaons
1.5 Correct use
1.6 User’s obligaons
1.1 Important information
This manual applies to the MDT 420/460/435/467 and PT 420/460, TDA 432/463 and
LDA 415 series only. It must be kept near the equipment in a readily and immediately
accessible locaon at all mes.
The content of this manual must be read, understood and
followed in all points by all relevant people. This applies in parcular to the notes on
safety. Following the safety instrucons will help to prevent accidents, defects and
malfuncons.
DYNISCO will not be held liable for any injury, loss or damage resulng from failure to
follow the instrucons in this manual.
If malfuncons occur in spite of having followed the operang instrucons, please
contact the DYNISCO customer service department (see chapter 8,
Maintenance).
This applies in parcular during the warranty period.
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1.2 Copyright
Copyright law requires that this manual be used for inhouse purposes only.
All reproducon, even parally and for in-house purposes, requires the approval of
DYNISCO. This manual may not be forwarded to third pares.
1.3 Explanation of icons
The manual uses icons to indicate informaon pertaining to safety:
Risk of destrucon or damage to equipment, machines or installaons
General danger to life or limb
Specic danger to life or limb
You MUST do this
The safety instrucons are provided again in the individual chapters of the manual.
1.4 Abbreviations
The following abbreviaons are used:
OM Operang manual
PT pressure transmier
f.s. of full scale
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1.5 Correct use
The purpose of the pressure transducer is to measure pressure in plasc melt as part
of a larger overall system. The PT can be used in media temperatures up to 400°C.
If the PT is used in other applicaons, the safety and accident prevenon regulaons
specic to that applicaon must be followed.
When using the PT as a safety component in accordance with the EC Machine
Direcve, Annex IIc, the equipment manufacturer must take any necessary
precauons to ensure that malfuncons of the PT cannot cause damage or injury.
1.6 User’s obligations
The operator or owner of the larger overall system, e.g. a machine, is responsible for
following the safety and accident prevenon regulaons that apply to the specic
applicaon.
2. Notes on safety
The operator or owner of the larger overall system is responsible for
following the safety and accident prevenon regulaons that apply
to the specic applicaon.
Toxic hazard!
The PT contains a small amount (7 mm³) of mercury (Hg) as its transmis-
sion medium. If the diaphragm is damaged, mercury may escape.
Never transport or store the PT without the protecve shell bolted in
place. Remove the shell shortly before installaon.
If mercury is inhaled or swallowed, seek medical aenon immediately!
Mercury is hazardous waste and must be disposed of in accordance with
applicable laws. DYNISCO will accept defecve PTs. If mercury escapes,
use airght packaging!
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When planning machinery and using the PT, follow the safety and
accident prevenon regulaons that apply to your applicaon,
e.g.:
● EN 60204, Electrical equipment in
machines.
● EN 292, Machine safety, general design
guidelines.
● DIN 57 100 Part 410, Protecon against
electric shock.
Mounng and electrical connecon of the PT must be done by specialists
with EMC training, following all applicable regulaons, and in
pressureless, voltage-free condion with the machine switched o.
The machine must be secured against being switched back on!
Burn hazard!
The PT must be removed with the melt in molten condion. The PT can
be very hot when removed.
Wear protecve gloves!
3. Technical Data
3.1 Ordering guide
3.2 Ordering example
3.3 Performance characteriscs
3.3.1 Accuracy
3.3.2 Repeatability
3.3.3 Resoluon
3.4 Mechanical conguraons
3.5 Pressure side connecon
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3.6 Pressure ranges
3.6.1 Pressure ranges in bar
3.6.2 Max. Overload
3.6.3 Burst pressure
3.6.4 Limit frequency
3.7 Rigid stem/exible stem
3.8 Electrical Data
3.9 Temperature inuence
3.10 EMC requirements
3.11 Materials
3.12 Mounng torque
3.13 Environmental Protecon
3.14 Weight
3.15 Dimensions
3.1 Ordering guide
3.2 Ordering example
xDT4xx x- xx - xxx - x - Opon
Rigid stem/exible stem
Pressure range
Pressure side connecon
Amplier
Perf. characteriscs
Mechanical conguraon
The exact meanings of the leer/digit combinaons are given in the corresponding
secons of chapter 3.
MDT462 F - ½ - 5C - 15/46
Melt PT
Perf. char. ± 1,0 % full scale
Amplier: 2-wire 4-20mA
Thread: ½ = ½" - 20 UNF
Pressure range: 0 - 500 bar
Stem length:15 = 152 mm
Flex. stem:46 = 457 mm
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3.3 Performance characteristics (xDT4Xx x-xx-xxx-xx)
3.3.1 Accuracy
(Linearity and hysteresis at T = constant)
xDT42x x ± 0,5 % of full scale
(35 bar and 50 bar ± 1 % of full scale)
xDT46x x ± 1 % of full scale
3.3.2 Repeatability
xDT42x x ± 0,1 % of full scale
(35 bar and 50 bar ± 0,2 % of full scale)
xDT46x x ± 0,2 % of full scale
3.3.3 Resolution innite
3.4 Mechanical configurations (XDT4xX x-xx-xxx-xx)
MDT4x0, LDA 415 stem version
MDT4x2 rigid stem and exible stem
TDT432/463 combined pressure and
temperature measurement
MDT435/467 transducer for limited
installaon space
3.5 Pressure side connection (xDT4xx x-XX-xxx-xx)
½ = ½” 20 UNF 2A
M18 = M18 x 1,5
3.6 Pressure ranges (xDT4xx x-xx-XXX-xx)
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3.6.1 Pressure ranges in bar
Model number Permitted pressure range in bar
xDT4xx x-xx-17-xx 0 - 17 series 42x/43x x only
xDT4xx x-xx-35-xx 0 - 35 series 42x/43x x only
xDT4xx x-xx-50-xx 0 - 50 series 42x/43x x only
xDT4xx x-xx-1C-xx 0 - 100
xDT4xx x-xx-2C-xx 0 - 200
xDT4xx x-xx-3,5C-xx 0 - 350
xDT4xx x-xx-5C-xx 0 - 500
xDT4xx x-xx-7C-xx 0 - 700
xDT4xx x-xx-1M-xx 0 - 1000
xDT4xx x-xx-1,4M-xx 0 - 1400
xDT4xx x-xx-2M-xx 0 - 2000
Other pressure ranges on request
3.6.2 Max. Overload (without influencing operating data)
2 x full scale pressure up to 700 bar (for 1000 bar and 1400 bar range: max. 1750 bar,
and 2450 bar for the 2000 bar range)
3.6.3 Burst pressure 6 x nominal value,
max. 3000 bar
3.6.4 Limit frequency 50 Hz [-3db]
3.7 Rigid stem/flexible stem (xDT4xx x-xx-xxx-XX)
15 = 152 mm standard length for rigid version
15/46 = 152 mm stem length / 457 mm exible stem
Other lengths on request
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3.8 Electrical data (xDT4xx X-xx-xxx-xx)
Conguraon 4-arm Wheatstone bridge
strain gauge with int. amplier
Output signal 3,33 mV/V ± 2 %
Supply voltage 10 VDC (recommended)
min.6 VDC, max.12 VDC
Calibraon funcon 80 % ± 0,5 % of full scale
(room temperature) output by externally connecng contacts E and F
Leakage resistance > 1000 MΩ at 50 V
3.9 Temperature influence
Housing
Max. housing temperature ± 120 °C
Zero shi due to temperature change on the housing
xDA420 series ±0,2% full scale /10°C typ.
xDA460 series ±1,0% full scale /10°C typ.
Sensivity shi due to temperature change on the housing
xDA420 series < 0,1 % f. s. / 10 °C typ.
(35 and 50 bar < 0,2 % f. s. / 10 °C) typ.
xDA460 series < 0,4 % f. s. / 10 °C typ.
Diaphragm (in contact with media)
Maximum temperature at the diaphragm
400 °C
Zero shi due to temperature change on the diaphragm
xDT 420 series <0,2 bar / 10 °C typ.
xDT 460 series < 0,4 bar / 10 °C typ.
Dieses Handbuch passt für folgende Modelle
8
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