Particle Measuring Systems LASAIR II 550L User Manual

Lasair II Particle Counter Operations Manual Page J-1
Appendix J
4-20 mA Input and Output
4-20 mA Input
Up to four optional sensors can be connected to Lasair II particle counter’s 4–20
mA connector (type DB15F) on the rear of the case. Use this appendix to find the
following information:
Cable Pin-outs
Standard PMS Cable Pin Number Pin Use
Temperature 1 Analog signal 1 input
2 Analog signal 1 GND
3 12–24 VDC
Relative Humidity 4 Analog signal 2 input
5 Analog signal 2 GND
6 12–24VDC
Differential Air Pressure 7 Analog signal 3 input
8 Analog signal 3 GND
9 12–24 VDC
Air Velocity 10 Analog signal 4 input
11 Analog signal 4 GND
12 12–24VDC
13 GND
14 GND
15 GND

Particle Measuring Systems LASAIR II 550L Specifications

General

Brand	Particle Measuring Systems
Model	LASAIR II 550L
Category	Measuring Instruments
Language	English