Vaisala Humicap HMW60U Guía de usuario descargar pdf (Pagina 42)

User's Guide ______________________________________________________________________

40 __________________________________________________________________ M210297EN-E

Figure 7 Connectors for connection cables

Calibration and Adjustment of HMD/W 60/70,

HMD/W 20/30 and HMP130 Series Transmitters

For checking and adjusting HM60/70 series and HM20/30/130 series

transmitters you need a MI70 and a HMP70 calibrated reference probe

and a connection cable. Only relative humidity channel of these

transmitters can be checked.

1. Connect the end of the HMA6070 (connection cable for

HM60/70-series) or HMA2030 (connection cable for HM20/30-

series) cable to either of the HM70's connector port located on

the bottom of the indicator, see Figure 7 on page 40.

2. Connect the other end of the HMA6070 or HM20/30/130-cable

to the

RH TEST connector (or TEST connector) of the transmitter's

motherboard.

3. Turn on MI70 indicator.

4. This concerns ONLY calibration of HM60/70-series: If a

transmitter has voltage output, select the RH input scale setting

0... 20 mA. If a transmitter has current output, set the indicator's

default setting to correspond the transmitter's signal (0... 20

mA/4...20 mA) as follows:

− Open the

MENU: press OPEN.

Connector ports

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Vaisala Humicap HMW60U Guía de usuario Pagina 42