Vaisala Calibration of Series HMDW6070 and HMP140 Transmitter with HMI41 - Manual (Page 8)

HMI41 Calibration Option
Operating Manual
19116ZZ-U218en-1.1
4 1996-08-29
Scale selection mode is entered when this text is on the display.
2.3 Scale selection modes
The HMI41 has four scale selection modes: voltage output (U) and current
output (I) selection modes are used for transmitters with standard settings.
Customized voltage output (cU) and customized current output (cI) selection
modes are meant for analogue transmitters with customized RH, T and/or
output range settings. All these selections are stored in the HMI41 memory;
therefore, if the transmitter settings or the selections in the HMI41 memory
have not been changed by the next calibration, you can calibrate the
transmitter directly. In the following, each selection mode is explained in its
own section.
2.3.1 Voltage output selection mode (U)
If the transmitter has voltage outputs, its temperature range is given to the
HMI41 with the voltage output selection mode (U). The humidity range is
always 0...100 %RH. Select the U selection mode with buttons ▲ or ▼ and
acknowledge the selection with ENTER. A text similar to the following is
displayed:
set Lo
T
T °C
°C
Numbers on the second line are blinking. They indicate the lower limit of the
transmitter’s temperature range currently stored in the HMI41 memory. Text
in the lower righthand corner is Lo. You can now set the lower limit with
buttons ▲ (number up) or ▼ (number down) to correspond to that of the
transmitter. Acknowledge the setting with ENTER: