GHM Delta OHM HVAC40 Series, Руководство по эксплуатации

Страница: 13 / 26

HVAC40…
- 13 -
V1.1
Measurement
Command Description
F0 Disable filtering of measurements (the last instantaneous measurement is pro-
vided)
F1 Enable filtering of measurements (default, a weighted average of the last meas-
urements is provided)
P0 Sets relative humidity as humidity measurement (default). Only HVAC40S17…
P1 Sets dew point as humidity measurement. Only HVAC40S17…
GP Reads the type of measurement set for humidity: relative humidity (0) or dew
point (1). Only HVAC40S17…
U3 Displays the temperature measurement on LCD
U4 Displays the humidity measurement on LCD (relative humidity or dew point de-
pending on the setting)
U5 Alternates the temperature and humidity measurements on LCD
UC Sets °C as temperature unit of measurement (default)
UF Sets °F as temperature unit of measurement
GU Reads the temperature unit of measurement
GM Reads the current measurement (not available in HVAC40S17… models)
The measurements are provided without the decimal point and in the sequence
temperature, relative humidity and dew point
Example of reply: 00230;C; 264;00032;Td C; (23.0 °C; 26.4 %UR; 3.2 °C Td)
Analog output (only HVAC4017…, HVAC40A17… and HVAC40V17… models)
Command Description
U0 Sets 0…20 mA as current analog output
U1 Sets 4…20 mA as current analog output (default)
AIsnnn Associates the initial scale of temperature analog output with snnn (“s” is the
sign of the value)
(*)
Default: -200 (=-20.0 °C)
ASsnnn Associates the full scale of temperature analog output with snnn (“s” is the sign
of the value)
(*)
Default: +800 (=+80.0 °C)
AG Reads the temperature range associated with the analog output
Example of reply:
User Analog Scale: -200 / +800 C (-20.0…+80.0 °C)
KU Enables the temperature range set with the AIsnnn and ASsnnn commands
(*)
The value must be written without the decimal point, even if it is not an integer value
(e.g., to associate 50.0 °C with the full scale of analog output, write AS+500). The value
is considered in the unit of measurement set in the instrument.
The temperature range set with the AIsnnn and ASsnnn commands is active only if it is
enabled with the KU command and the dip switch 1 is set to OFF.