Instructions
Table Of Contents
- 1620A “DewK” Thermo-Hygrometer
- 1 Before You Start
- 2 Introduction
- 3 Specifications and EnvironmentalConditions
- 4 Quick Start
- 5 Parts and Controls
- 6 General Operation
- 7 Menu Functions
- 8 Digital Communications Interface
- 9 Calibration Procedure
- 10 Maintenance
- 11 Troubleshooting
- Index

An optional extension cable may be used to allow the sensor to be placed in a
remote location.
5.4 Left Side Panel
The left side panel consists of, from top to bottom, the RS-232 port, Ethernet
LAN port, alarm port, and DC power socket.
RS-232 Port - The RS-232 port can be used to connect the instrument to a com
-
puter and remotely control and retrieve data from the instrument using a serial
RS-232 interface (see Sections 7.5.3.1 and 8). The jack accepts a 3.5 mm min
-
iature stereo plug.
LAN Port - This RJ45 socket allows the instrument to be connected to an
Ethernet IP computer network to remotely control and retrieve data from the in
-
strument (see Sections 7.5.3.3 and 8). The port has two LED indicators. The
15
5 Parts and Controls
Left Side Panel
Figure 3 Right and Left Side View










