PTH-200 Pressure-Temp-Humidity Box

In airborne surveys, air pressure, temperature and humidity are parameters that need to be taken into account for correction of elevation effects.

Our PTH-200 box contains the sensors needed to do just that: a pressure, temperature and humidity sensor. The unit is smart; it contains a processor that translates the outputs from the sensors into a "gps-like" data string that can be read over any serial or serial-to-USB port.

Part number

PTH-200 Version 1.0

Specifications

Sensor	Property	Min	Typ	Max	Accuracy	Unit
Pressure	Pressure Range	15	—	115	1.5%FS	kPa
	Operating Temp	-40		125		^oC
Temperature	Temp Range	-55	—	125	0.5	^oC
Humidity	Relative Humidity range	0	—	100	0.5	%
	Operating Temp	-40		85		^oC

Connector type and pinout

The connector is a Lumberg 0322 05-1 connector.

Pin out:

Pin#	Color	Function	Type	Range
1	Red	Vs	Supply voltage	9-36V
2	Yellow	TX	Transmit data TTL	5V
3	White	RX	Receive data TTL	5V
4	N/C
5	Black	GND	Ground

Data I/O

The sensor box outputs an NMEA-like string that is structured as follows:

For example

$MSPTH,2017T039 PTH-200.012,1018.2,23.5,33.0*46

Fields description:

ITEM	VALUE	DATA	UNIT
MNEMONIC	$MSPTH	TEXT
ID	2017T039 PTH-200.012	TEXT
PRES	1018.2	FLOAT	mBar
TEMP	23.5	FLOAT	^oC
HUM	33.0	FLOAT	%
CHECKSUM	46	INT

Note

Decimal separator is a "." (a dot, not a comma)