Delta OHM HD45 17A, Manual

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interval, the instrument directly accesses configuration mode without asking the
access code. The access code condition is shown by an “M” displayed on left top of the
screen.
To disable the access code before the 5-minute interval has elapsed, press and hold
the MENU key for at least 2 seconds, until the message “Press MENU to edit
parameters” is displayed, then access configuration mode as an operator by pressing
MENU and exit by pressing ESC.
Configuration parameters list
The table below shows the complete list of the instrument parameters, along with
settable values and default values (“DEFAULT” column).
Tab. 5.A: Configuration parameters
P# DESCRIPTION VALUE DEFAULT NOTE
000 User code Alphanumeric code
Max 34 digits.
(1)
001 User calibration date (2)
002 Number of samples to be averaged
for measure printing on serial port
MIN: 1
MAX: 20
1
003 CO
2
calibration point (ppm) MIN: 200
MAX: 600 400
004 Atmospheric pressure (hPa) MIN: 0
MAX: 3000
1013
005 Logging interval 0: 30 seconds
1: 1 minute
2: 5 minutes
2
006 Temperature measuring unit 0: °C
1: °F
0
007 Humidity measuring type 0: RH%
1: Dewpoint T
d
in °C
2: T
ambient
-T
d
in °C
0
008 CO
2
output configuration 00: standard
(0…10V or 4…20mA)
01: remove offset
(0…10V or 0…20mA)
02: add offset
(2…10V or 4…20mA)
04: invert standard
(10…0V or 20…4mA)
05: invert and remove offset
(10…0V or 20…0mA)
06: invert and add offset
(10…2V or 20…4mA)
00
009 Temperature output configuration As P#008 00
010 Humidity output configuration As P#008 00
(1) Can be changed only through serial connection.
(2) Automatically updated by PC application software following to calibration.