Vaisala Drycap DMT142, Руководство пользователя

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Chapter 4 ________________________________________________________________ Installation
VAISALA________________________________________________________________________ 11
0510-036
Figure 6 Snap-On Type Cable
0510-037
Figure 7 Screw Fitting Type Cable
Power Supply Requirements
The DMT142 transmitters are designed to operate with a supply
voltage of 12 ... 28 VDC (voltage output version) or 18 ... 28 VDC
(current output version).
When measuring in pressures 20 ... 50 bar
a
(290 ... 725 psi
a
) or
temperatures -40 ... 0 °C (-40 ... 32 °F), a supply voltage of
24 ... 28 VDC is required.
The power supply should maintain the voltage for all load conditions.
Current consumption during normal operation is 10 mA. The
consumption increases during the sensor self-diagnostics (auto-
calibration and sensor purge). The maximum current consumption is
220 mA pulsed current (see the pictures on page 4).