CẢM BIẾN ÁP SUẤT WIKA A-1200

Applications
Machine tools
Hydraulics and pneumatics
Automation engineering
Special-purpose machine building
Special features
Industry 4.0-ready IO-Link sensor improves connectivity and diagnostics
Designed for rough demands of up to 1,000 g shock and -40 ... +125 °C [-40 ... +257 °F]
Optimised design makes OEM machine integration easier
Multicolour 360° LED status display simplifies troubleshooting and localisation

The given measuring ranges are also available in kg/cm², kPa and MPa.

Special measuring ranges between 0 ... 0.4 and 0 ... 1,000 bar [0 ... 10 to 0 ... 15,000 psi] are available on request.

Special measuring ranges have a reduced long-term stability and higher temperature errors.

Overload safety

The overload safety is based on the sensor element used. Dependent on the selected process connection and the sealing, restrictions in overload safety can result.

Measuring range ≤ 600 bar [< 8,000 psi]: 2 times

Measuring range > 1.000 bar [≥ 8,000 psi]: 1.5 times

Increased overload safety (option)

With increased overload safety there are deviations in temperature error and long-term stability.

Vacuum-tight

Yes

LED status display (option)

Visibility: 360°

Green: Operation

Yellow: Warning

Red: Error

IO-Link

Revision: 1.1

Transmission rate: 38.4 kBaud (COM2)

Min. cycle time: 2.3 ms

Master port class: A

Adjustment of zero point offset

max. 3 % of span (via IO-Link)

Damping of switching outputs

0 ms ... 65 s (adjustable via IO-Link)

Switch-on time

1 s

Switching thresholds

Switch point 1 and switch point 2 are individually adjustable via IO-Link.

Switch point 1 can be set to the prevailing pressure value using the teach function.

Switching functions

Normally open, normally closed, window, hysteresis (adjustable via IO-Link)

The switching function of switch point 1 can be set to normally closed or normally open using the teach function.

Switching voltage

Power supply - 1 V

Switching current

max. 250 mA, see derating curves

Response time of switching output

≤ 5 ms

Service life

100 million switching cycles

Voltage supply

Power supply

DC 10 ... 32 V

Current consumption

≤ 25 mA

Total current consumption

≤ 0.3 A incl. switching current (with one switching output)

≤ 0.6 A incl. switching current (with two switching outputs)

Reference conditions (per IEC 61298-1)

Temperature: 15 ... 25 °C [59 ... 77 °F]

Atmospheric pressure: 860 ... 1,060 mbar [12.5 ... 15.4 psi]

Air humidity: 45 ... 75 % r. h.

Nominal position: Calibrated in vertical mounting position with process connection

facing downwards.

Power supply: DC 24 V

Accuracy, switching output

≤ ±1 % of span (option: ≤ ±0.5 % of span)

Long-term drift, switching output

≤ ±0.1 %

≤ ±0.2 % for measuring ranges ≤ 0.69 bar [10 psi]

≤ ±0.26 % for increased overload safety

Switching current dependency

With switching currents greater than 50 mA:

≤ ±0.05 % per 50 mA additional applied switching current

Versions without teach function, LED status display and

IO-Link 1.1:

≤ ±0.075 % per 50 mA additional applied switching current

Temperature error in rated temperature range

≤ ±1.5 % of span

≤ ±2.5 % of span for increased overload safety

Temperature coefficients in rated temperature range

Mean TC zero point: ≤ ±0.16 % of span/10 K

Mean TC span: ≤ ±0.16 % of span/10 K

Humidity

45 ... 75 % r. h.

Vibration resistance

25 g, 10 ... 2,000 Hz (IEC 60068-2-6, under resonance)

Shock resistance

100 g, 6 ms (IEC 60068-2-27, mechanical)

1,000 g, 1 ms (IEC 60068-2-27, mechanical) 1)

Service life

100 million load cycles

Ingress protection (per IEC 60529)

see “Electrical connections”

Mounting position

as required