Vaisala DRYCAP DM70 User's Guide download pdf (Page 45)

Chapter 6 ____________________________________ Field Calibration Check of Fixed Transmitters

CHAPTER 6

FIELD CALIBRATION CHECK OF FIXED

TRANSMITTERS

To compare measurement readings or to read the output of a fixed

transmitter directly on the DM70 display, connect DM70 to a fixed

Vaisala transmitter using the connection cable accessories.

Vaisala DRYCAP

Dewpoint and Temperature Transmitter Series

DMT340 can be adjusted in laboratory conditions using DM70 as a

reference. Please refer to Chapter 9, Calibration, Adjustment, and

Maintenance on page 65 for more information.

Field Calibration Check of

DMT340/DMT242/DMT142

You can use DM70 to display the reading of DMT340, DMT242 or

DMT142 and to compare the readings of DM70 and

DMT340/DMT242/DMT142.

To connect DMT340 you need connection cable 211339. For

DMT242, you will need the 27160ZZ cable and for DMT142, you

will need the 211917ZZ cable (see section Accessories on page 89).

For field calibration check, follow the instructions below.

1. Turn off DM70.

2. Connect the cable between DMT340 (service port) or

DMT242/DMT142 (serial port) and DM70 (connector I or II).

Turn on both the devices.

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Vaisala DRYCAP DM70 User's Guide Page 45