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

Password Commands - commands for enabling and disabling the password,
for setting the password, and for checking the password protection state.
Status Commands - commands to report the status and condition of the
instrument.
Each section provides the command structure (long and short format), a de
-
scription of the command purpose, a command example, an example of what
the command returns (as applicable to query commands), and notes specific to
the command. The following apply to each group of commands:
•
Upper case letters designate syntax that is required when issuing the com
-
mand. Lower case letters are optional and may be omitted.
•
<> indicates a required parameter.
•
[] indicates an optional parameter.
•
() indicates a group of parameters that must be used together.
• ‘|’ indicates alternate parameter values.
• <str> indicates a string of ASCII characters is required.
• <chn> indicates a channel number is required.
• <num> indicates an integer value is required.
• <bool> indicates a boolean value (0 or 1) is required. The mnemonics
OFF and ON are also accepted for 0 and 1, respectively.
• <unit> indicates a temperature unit (C or F) is required.
• <float> indicates a floating point value is required.
• <pass> indicates a four digit numeric password is required.
• <year> indicates a four digit number for the year is required.
•
<month> indicates a one or two digit number for the month is required.
• <day> indicates a one or two digit number for the day is required.
•
<hour> indicates a one or two digit number for the hour (0 to 23) is re
-
quired.
•
<minute> indicates a one or two digit number for the minute is required.
•
<second> indicates a one or two digit number for the second is required.
•
<baud> indicates a valid baud rate setting is required.
•
<addr> indicates an IP address is required.
•
For query commands, specifying the MIN, MAX, or DEF parameter
causes the instrument to respond with the minimum, maximum, or default
setting respectively.
•
For set commands, specifying the MIN, MAX, or DEF parameters causes
the instrument to use the minimum, maximum, or default setting respec
-
tively.
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8 Digital Communications Interface
Commands










