Type 8325

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Performance data

Compensated ambient temperature

range (Tamb)

0…+ 80 °C (+ 32…+ 176 °F)

Temperature coefficient (Tc)

In compensated T° range

Average Tc of zero

• Standard variant < 0.4 bar: ≤ ± 0.4 % of measuring span / 10K

• Standard variant ≥ 0.4 bar: ≤ ± 0.2 % of measuring span / 10K

• Flush diaphragm variant (standard + hygienic):

– ≤ ± 0.2 % of measuring span / 10K (measuring range > 0.25 bar)

– < ± 0.4 % of measuring span / 10K (measuring range ≤ 0.25 bar)

Average Tc of measuring span

• Standard variant < 0.4 bar: ≤ ± 0.2 % of measuring span / 10K

• Standard variant ≥ 0.4 bar: ≤ ± 0.2 % of measuring span / 10K

• Flush diaphragm variant (standard + hygienic): ≤ ± 0.2 % of measuring span / 10K

Adjustability: Zero / span

± 5 %

Measurement deviation

• ≤ 0.5 % of measuring span (2-point calibration)1.)

• ≤ 0.25 % of measuring span (Best Fit Straight Line, BFSL)1.)

Hysteresis

≤ 0.1 % of measuring span

Repeatability

≤ 0.1 % of measuring span

Response time

• Standard variant < 0.4 bar: ≤ 1 ms

• Standard variant ≥ 0.4 bar: ≤ 3 ms

• Flush diaphragm variant (standard + hygienic): ≤ 2 ms

Stability

Over 1 year

• Standard variant < 0.4 bar: ≤ ± 0.2 % of measuring span (at reference conditions)

• Standard variant ≥ 0.4 bar:

– ≤ ± 0.1 % of measuring span

– ≤ ± 0.2 % of measuring span (with special measuring ranges and measuring

ranges < 1 bar (15 psi))

• Flush diaphragm variant (standard + hygienic): ≤ ± 0.2 % of measuring span (at refer-

ence conditions)

Electrical data

Operating voltage [U]

• Standard variant < 0.4 bar: 10…30 V DC

• Standard variant ≥ 0.4 bar: 8…36 V DC

• Flush diaphragm variant (standard + hygienic): 10…30 V DC

• Filtered and regulated

• Connection to main supply: permanent (through external SELV (Safety Extra Low

Voltage) and LPS (Limited Power Source) power supply)

Power source (not supplied)

Limited power source according to UL/EN 60950-1 standards or limited energy circuit

according to UL/EN 61010-1 §9.4

DC reverse polarity protection

Yes

Overvoltage protection

Yes

Short circuit protection

Yes

Load

• Standard variant < 0.4 bar: ≤ (U [V] - 10 [V]) / 0.02 [A] (in Ω)

• Standard variant ≥ 0.4 bar: ≤ (U [V] - 7.5 [V]) / 0.023 [A] (in Ω)

• Flush diaphragm variant (standard + hygienic): ≤ (U [V] - 10 [V]) / 0.02 [A] (in Ω)

Output

Standard 4…20 mA, 2 wires

Media data

Fluid temperature

• Standard variant: - 30…+ 100 °C (- 22…+ 212 °F)

• Standard flush diaphragm variant: - 30…+ 100 °C (- 22…+ 212 °F)

• Hygienic flush diaphragm variant: - 20…+ 150 °C (- 4…+ 302 °F)