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VEGA D91 Profibus PA User Manual

Page 8

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8

Pressure transmitter D91 (Profibus PA)

Product description

1)

The use of a properly fitting cable seal in the cable connection is necessary for maintaining the housing
protection. If the seal used does not fit the cable, it should be replaced by a suitable one.

Connection cable, processing unit – Profibus PA

Cable entry

M20 x 1.5 (for cable ø 5 … 9 mm)

Screw terminals

for conductor cross-sections of up to 2.5 mm

2

Recommended bus cable types

- SINEC 6XV 830-5AH10 (Siemens AG)

- SINEC L2 6XV1 830-35H10 (Siemens AG)
- 3079 A (Belden)

Connection cable, processing unit – Transmitter

Cable entry

M20 x 1.5 (for cable ø 5 … 9 mm)

Screw terminals

for conductor cross-sections of up to 2.5 mm

2

Transmitter
- with fixed cable outlet

3-wire screened with breather capillaries

- with cable connection terminals

3-wire screened

Protective measures

1)

Protection
- transmitter with fixed cable outlet

IP 68

- transmitter with terminal housing

IP 66/IP 67

- transmitter with plug connection

IP 66/IP 67

- processing unit

IP 66/IP 67

Protection class

III

Overvoltage category

III

Accuracy (similar to DIN 16 086, DIN V 19 259 - 1 and IEC 770)

Deviation

Reference conditions (acc. to IEC 770)
- temperature

15°C … 35°C

- rel. humidity

45 % … 75 %

- air pressure

860 mbar … 1060 mbar/86 kPa … 106 kPa

Determination of characteristics

limit point adjustment acc. to DIN 16 086

Characteristics

linear

Deviation in characteristics

incl. hysteresis and repeatability

- Turn Down 1 : 1

< 0.25 % with accuracy class 0.25
< 0.1 % with accuracy class 0.1

- Turn Down up to 1 : 5

typ. < 0.3 % with accuracy class 0.25
typ. < 0.1 % with accuracy class 0.1

- Turn Down up to 1 : 10

typ. < 0.4 % with accuracy class 0.25
typ. < 0.2 % with accuracy class 0.1