Deltabar S
Endress+Hauser 19
Performance characteristics – general
Reference operating
conditions
• As per IEC 60770
• Ambient temperature T
U
= constant, in the range of: +21...+33°C (+69.8...+91.4°F)
• Humidity = constant, in the range of: 5...80 % r.H
• Ambient pressure p
U
= constant, in the range of: 860...1060 mbar
• Position of the measuring cell: constant, in the range of: 1°
• Input of LOW SENSOR TRIM and HIGH SENSOR TRIM for lower range value and upper range value
• Zero based span
• Material of the process isolating diaphragm
– PMD75: AISI 316L/1.4435, Alloy C276, Gold-Rhodium coated, Monel
– FMD77, FMD78: AISI 316L/1.4435
– PMD70, FMD76: Al
2
O
3
(Aluminium-oxide-ceramic)
• Filling oil: silicone oil
• Side flanges material PMD75: AISI 316L/1.4435
• Supply voltage: 24 V DC ± 3 V DC
• Load with HART: 250
Long-term stability
Influence of the installation
position
• PMD70, FMD76: 3 mbar
1, 3
• PMD75: 4 mbar
1, 3
• FMD77: 32 mbar
2, 3
Note!
Position-dependent zero shift can be corrected. ä 23, section "General installation instructions" and
ä 62 ff, section "Response time".
Vibration effects
1 year 5 years 10 year
Measuring range [mbar] % of URL
10 ±0.150 -- --
100 ±0.180 -- --
500 ±0.025 ±0.050 ±0.075
3000 ±0.038 ±0.075 ±0.150
16000 ±0.025 ±0.110 ±0.210
1) Device is rotated vertically to the axis of the process isolating diaphragm.
2) Device rotated vertically to the process isolating diaphragm of the flange .
3) The value is doubled for devices with inert oil.
Device Housing Test standard Vibration effects
PMD70/
FMD76
optional on-site display on
the side (T14)
GL reference accuracy to
10...18 Hz: ±4 mm;
18...500 Hz: 5 g
PMD75 optional on-site display on
the side (T14)
IEC 61298-3
reference accuracy to
10...38 Hz: ±0.35 mm;
38...2000 Hz: 2 g
PMD75 optional on-site display on
the top (T15)
reference accuracy to
10...60 Hz: ±0.35 mm;
60...2000 Hz: 5 g
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