Instructions

Table Of Contents

even with th password. When using Hart Scientific’s LogWare III Software,

COMMAND must be ON for full functionality. With applications where extra

security is important and settings need not be changed, COMMAND should be

OFF.

PAGE, when ON, allows the instrument to serve an HTML web page. In appli

cations where extra security is important, PAGE can be set to OFF disabling the

HTML server.

When the parameter window is exited, there might be a delay of several sec

onds as the LAN port device is updated with the new settings.

The instrument does not implement dynamic DNS hostname registration.

When PAGE is enabled, the instrument serves a simple HTML web page that

displays basic product information, allows readings to be observed, and pro

vides a terminal screen where commands can be entered. The web page of the

1620A can be accessed with an internet browser using the instrument's IP ad-

dress (see ADDRESS above) for the URL, e.g. http://192.168.1.1.

The main page shows product information, including the model and serial num-

bers of the instrument and its sensors and the ID (name) and calibration dates

of the sensors. If a sensor's ALERT option is enabled, it also shows its calibra-

tion expiration date.

The READINGS button on the main page links to the Readings page which

shows current temperature and relative humidity readings and alarm indica-

tions. The Update button refreshes the screen with new readings.

The TERMINAL button links to the Terminal page which allows any of the

communication commands (see Section 8) to be entered and responses dis-

played. This page requires entering the instrument's password (see Section

7.5.4) before access is allowed. If the COMMAND option (see above) is OFF,

commands can only be used to read settings but not change them. Groups of

settings may also be password protected depending on PASSWORD parameter

settings. The Terminal page opens a persistent TCP connection to the instru

ment, during which time no other access to the instrument through the LAN in

terface by any other computer is possible. The connection is closed when the

Terminal page is exited.

7.5.4 Password

The PASSWORD function is used for changing the password required for ac

cess to password-protected parameters and for determining whether or not to

password-protect those given parameters. When this function is selected, the

PASS parameter is displayed.

The password must be entered correctly to access the password settings. Press

the lr buttons to highlight the digit you want to change. Use the ud but

tons to scroll through the numbers 0-9 to set each digit of the password. Press

7 Menu Functions

System Menu