Gill MetPak II, User Manual

Page: 31 / 39

Operation
MetPak II User Manual
Last Change
©
Gill Instruments Ltd
20 August, 2010 Page 27
Command Parameters Description and examples
SERIAL Used to report the MetPak II serial number.
e.g. 00000008
SWVER
Returns the MetPak II Firmware version e.g. SWVER = 2436 V1.00
UNITS WIND
PRESS
TEMP
DEWPOINT
RH
Valid values are dependent on sensor type. A UNITS command with no
parameter shall display a line of test showing the selected units of the
current output string. Changes the output units for an individual sensor.
UNITS <no parameter> - returns the current value, e.g.
e.g. UNITS = -,DEG,MS,HPA,%,C,C,V,-,-
UNITS WIND MS - selects metres/second for the wind reading.
UNITS PRESS HPA - Selects hectoPascals for the pressure reading.
UNITS TEMP C - selects centigrade for temperature reading.
UNITS DEWPOINT C - selects centigrade for dewpoint reading.
UNITS RH % - selects percentage for relative humidity
See Table 10 for a list of unit abbreviations.
Table 10 Abbreviations used in UNIT configuration command
UNITS
measurement
parameter Unit Abbreviation
Metres per Second MS
Nautical Miles per Hour KNOTS
Miles per Hour MPH
Kilometres per Hour KPH
WIND
Feet per Minute FPM
Celsius C
Fahrenheight F
TEMP and
DEWPOINT
Kelvin K
HectoPascals HPA
MilliBars MB
Inches of Mercury INHG
PRESS
Millimetres of Mercury MMHG
RH
Relative Humidity %
3.2.2 Configuring MetPak II for SDI-12
To configure a MetPak II unit for SDI-12:
1. Place the MetPak II into SETUP MODE as described on page 24.
2. Type COMMS SDI12 and press Enter. Until the unit is restarted, the
COMMS setting will remain unchanged.
3. Shut down the MetPak II unit.
4. Change the hardware connections for SDI-12.
5. Restart the unit and restart the MetPak unit.