Configuring Pressure Settings - Vaisala DRYCAP DM70 Kurzanleitung

2. With the MI70 indicator power switched off, connect the probe cable to either of the
connector ports of MI70.
Rotate the metal ring around the cable connector clockwise until it tightens up.
3. Switch MI70 on by pressing the Power On/Off button.
4. Install the probe in the measurement environment.
5. The basic display opens. Let the measurement reading stabilize.
6. For options on recording measurement data or examining the data as a graph, see
interface (page 19).
CAUTION!
probe.
If you need to disconnect the probe from the indicator, first press the Power
On/Off button to switch the indicator off. This ensures that all the settings and
data are saved properly.
When disconnecting the cable, first loosen the metal ring by turning it
counterclockwise and then pull out the connector.
When measuring low dew points, the stabilization times can be long, for example,
1 ... 2 hours. Therefore, turn off the automatic power-off function, turn on the
automatic autocalibration, and turn on the automatic sensor purge.
This allows monitoring the stabilization, the autocalibration ensures an accurate
measurement, and the purge ensures the shortest possible response times.
3.2.1 Configuring pressure settings
In pressurized environments, the actual process pressure value must be set for DM70. The
pressure can be given in the following units:
• P : Gauge pressure is given in the unit of bar. It indicates the pressure difference
barg
between the normal atmospheric pressure and the actual process pressure.
• P : Absolute process pressure is given in the unit of bar.
bara
• P : Gauge pressure is given in the unit of psi. It indicates the pressure difference
psig
between the normal atmospheric pressure and the actual process pressure.
• P : Absolute pressure is given in the unit of psi.
psia
To set the pressure values:
1. Open the menu by pressing
Handle the probe carefully. Strong impact or falling can damage the
Open.
Chapter – Taking measurements
User
13