2.2 Compensation of the atmospheric pressure ................... 16
Contents
Safety information
Please read this manual carefully, and also take
note of country-specific installation standards
(e.g. the VDE regulations in Germany) as well
as all prevailing safety regulations and accident prevention rules.
For safety and warranty reasons, any internal
work on the instruments, apart from that involved in normal installation and electrical connection, must be carried out only by qualified
VEGA personnel.
2Pressure transmitters D86/D87
Note Ex area
Please note the attached safety instructions
containing important information on installation
and operation in Ex areas.
These safety instructions are part of the
operating instructions and come with the Ex
approved instruments.
7.1 Retrofitting the adjustment insert ...................................... 39
Pressure transmitters D86/D873
1 Product description
1.1 Function and configuration
Pressure transmitters D86 and D87 are instruments for hydrostatic level measurement.
Pressure transmitter D86
Measuring cell: dry, ceramic-capacitive
Diaphragm: flush, sapphire-ceramic
Series: suspension version
Standard application: Level and gauge
measurements in water/sewage water,
flumes, basins, deep wells, vessels and
tanks
Pressure transmitter D87
Measuring cell: dry, metallic-capacitive
Diaphragm: Duratherm 600
Series: suspension version
Standard application: Level and gauge
measurements in water/sewage water,
flumes, basins, deep wells, vessels and
tanks
®
Product description
Output signal
The output signal is transferred as a digital or
analogue signal from the pressure transmitter
to the signal conditioning instrument:
• analogue output signal
- unstandardised (in conjunction with
VEGA signal conditioning instrument)
- 4 … 20 mA standardised
• digital output signal (VBUS) for connection
to a digital VEGA signal conditioning instrument (VEGAMET 514V, 515V or VEGALOG
571)
The pressure effects a capacitance change
on the measuring cell. This capacitance
change is detected by an ASIC (Application
Specific Integrated Circuit) and converted
into a pressure-proportional signal by the
integrated electronic module with
microcontroller. Precise, high-resolution digital processing of measurement data ensures
excellent technical data.
To improve reliability, the functionality of important electronic components is continuously checked, and internal parameters such
as sensor value, temperature and operating
voltage are closely monitored.
4Pressure transmitters D86/D87
Product description
1.2 Electronics version without adjustment
Electronics version A:
Pressure transmitter for connection to VEGA signal conditioning instruments
e.g. IP 66
e.g. IP 67
VEGABOX 01
Zum Anschluss an
For connection to
Druckmessumformer mit
pressure transmitters with
analogem Ausgangssignal
analog output
12310
1112
-
+
-
TRANSMITTER
+
VEGABOX 01
VEGAMET
VEGAMET
VEGALOG
VEGALOG
Electronics version B:
Pressure transmitter for connection to VEGA signal conditioning instruments (digital
transmission VBUS)
Nominal measuring range (gauge pr.)Gauge pr. resistanceLow pr. resistance
0…0.1 bar / 0…10 kPa15 bar / 1 500 kPa-0.2 bar / -20 kPa
0…0.2 bar / 0…20 kPa20 bar / 2 000 kPa-0.4 bar / -40 kPa
0…0.4 bar / 0…40 kPa30 bar / 3 000 kPa-0.8 bar / -80 kPa
0…1.0 bar / 0…100 kPa35 bar / 3 500 kPa-1.0 bar / -100 kPa
0…2.5 bar / 0…250 kPa50 bar / 5 000 kPa-1.0 bar / -100 kPa
0…5.0 bar / 0…500 kPa65 bar / 6 500 kPa-1.0 bar / -100 kPa
0…10.0 bar / 0…1 000 kPa90 bar / 9 000 kPa-1.0 bar / -100 kPa
0…20.0 bar / 0…2 000 kPa130 bar / 13 000 kPa-1.0 bar / -100 kPa
Measuring range Pressure transmitter D87
Nominal measuring range (gauge pr.)Gauge pr. resistanceLow pr. resistance
0…0.1 bar / 0…10 kPa2.5 bar / 250 kPa-0.1 bar / - 10 kPa
0…0.2 bar / 0…20 kPa5 bar / 500 kPa-0.2 bar / -20 kPa
0…0.4 bar / 0…40 kPa10 bar / 1 000 kPa-0.4 bar / -40 kPa
0…1.0 bar / 0…100 kPa25 bar / 2 500 kPa-1.0 bar / -100 kPa
0…2.5 bar / 0…250 kPa25 bar / 2 500 kPa-1.0 bar / -100 kPa
0…5.0 bar / 0…500 kPa25 bar / 2 500 kPa-1.0 bar / -100 kPa
0…10.0 bar / 0…1 000 kPa25 bar / 2 500 kPa-1.0 bar / -100 kPa
0…20.0 bar / 0…2 000 kPa25 bar / 2 500 kPa-1.0 bar / -100 kPa
Mechanical data
Materials, wetted parts
Process connectionstainless steel 1.4571, 1.4435
DiaphragmDuratherm 600
Materials, non-wetted parts
HousingAlu (seawater resistant) PE-powder coated,
External connection housinghigh resistance plastic PBT (Polyester)
Ground terminalstainless steel 1.4305
Window of the display modulesafety glass
Weights
Basic weight without housingapprox. 1.6 kg
External housingapprox. 400 g
Adjustment and display elements
Pressure transmitter
- terminal insertwithout adjustment elements
- adjustment insert2 keys, 1 rotary switch
Pressure transmitters D86/D879
stainless steel 1.4571
Product description
Electrical data
Adjustment ranges
Zeroadjustable from -20 … +95 % of nominal range
Spanadjustable from 3.3 … 120 % of nominal range
Supply and signal circuit (analogue transmission, 4 … 20 mA),
electronics version A, C, I and K
Supply voltage12 … 36 V DC
permissible residual rippleUSS £ 1 V
- adjustment insert4 … 20 mA (adjustable)
Current limitationapprox. 22 mA
Fault signal22 mA (3.6 mA)
Integration time0 … 10 s
Rise time70 ms (ti = 0 sec; 0 … 63 %)
Max. permissible loadsee load diagram:
-4 … 20 mA
Load in W
900
600
300
Supply voltage
12
18243036
in V
Supply and signal circuit (analogue transmission, 4 … 20 mA),
additional data for electronics version L
Supply voltage for pressure transmitters
in conjunction with VEGADIS 12
- without display12 … 36 V DC
- with display17 … 36 V DC
Max. input current150 mA
Current signal range3.5 … 22 mA
Max. permissible loadsee load diagram:
10Pressure transmitters D86/D87
Product description
Load diagram with display
Load in W
700
500
300
100
18
243036
Supply voltage
in V
Supply and signal circuit on VEGA signal conditioning instruments (digital signal
transmission VBUS), additional data for electronics version B
Supply voltage25 … 36 V DC, from VEGAMET (VBUS) or
from VEGALOG 571 with EV input card
Data transmissiondigital (VBUS)
Connection cable2-wire screened
Cable lengthmax. 1000 m
Integrated overvoltage protection (option)
Nominal response DC voltage
- protective diode40 V
- gas separator650 V
Nominal leakage current
- gas separator20 kA
Connection cables
Cable entry
- housing2 x M20x1.5 (for cable ø 5…9mm or 9…12mm)
- external connection housing2 x M20x1.5 (for cable ø 5…9mm or 9…12mm)
Screw terminals
- sensorfor wire cross-sections of up to 2.5 mm
- external connection housingfor wire cross-sections of up to 2.5 mm
Protective measures
1)
2
2
ProtectionIP 66, IP 67, IP 68
VEGABOX 01IP 66 and IP 67
Protection classIII
Overvoltage categoryIII
1)
Maintaining the housing protection IP 66 or IP 67 requires the use of a seal that correctly fits the cable in
the cable entry. If the supplied seal does not fit, a suitable seal must be provided by the customer.
Pressure transmitters D86/D8711
Product description
Accuracy (similar to DIN 16 086, DIN V 19 259 - 1 and IEC 770)
Deviation
Reference conditions (acc. to IEC 770)
- temperature15°C … 30°C
- humidity45 % … 75 %
- air pressure86 kPa … 106 kPa
Determination of characteristicslimit point adjustment acc. to DIN 16 086
Characteristicslinear
Deviation in characteristicsincl. hysteresis and repeatability
- Turn Down 1 : 1< 0.25 % with accuracy class 0.25
- Turn Down up to 1 : 5typ. < 0.3 % with accuracy class 0.25
- Turn Down up to 1 : 10typ. < 0.4 % with accuracy class 0.25
Influence of the ambient temperature
Average temperature coefficient
of the zero signal
1)
- Turn Down 1 : 1< 0.15 %/10 K with accuracy class 0.25
- Turn Down up to 1 : 5typ. < 0.225 %/10 K with accuracy class 0.25
- Turn Down up to 1 : 10typ. < 0.3 %/10 K with accuracy class 0.25
< 0.1 % with accuracy class 0.1
typ. < 0.1 % with accuracy class 0.1
typ. < 0.2 % with accuracy class 0.1
< 0.05 %/10 K with accuracy class 0.1
typ. < 0.075 %/10 K with accuracy class 0.1
typ. < 0.1 %/10 K with accuracy class 0.1
Long-term stability
Long-term stability of the zero signal
2)
< 0.25 % per 2 years
Other actuating variables
Calibration positionupright, diaphragm points downwards
Influence of the installation position
- D86< 0,2 mbar
- D87< 5 mbar
Vibration resistancemechanical vibrations with 4 g and
5 … 100 Hz, tested acc. to the regulations of
German Lloyd GL-characteristics 2
1)
In compensated temperature range of 0°C … +80°C, reference temperature 20°C.
2)
Acc. to IEC 770, item 6.3.2 relating to the nominal range.
12Pressure transmitters D86/D87
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