Omega Engineering manual DPG10L Output Options, Analog Output Signal Option, Alarms Option

M3367/0606 DPG10L

• DPG10L Output Options

Several output signals are available on the circular 6 pin connector located on the rear of the unit. Depending on the option selected the signals are present on pins as follows.

DPG10L Pin Out Table

	4-20 mA			0-2 VDC			0-5 VDC
	with Alarm	4-20 mA	0-5 VDC	with Alarm	0-2 VDC	Ex Pwr	with Alarm
A	+ Excitation	+ Excitation	+ Excitation	N/C	N/C	+ Pwr	+ Excitation
B	– Excitation	– Excitation	+ Output	+ Output	+ Output	– Pwr (Com)	+ Output
C	Dig Gnd	N/C	– Output	– Output	– Output	N/C	– Out/– Ex
D	Alarm 2	N/C	– Excitation	Alarm 2	N/C	N/C	Alarm 2
E	Alarm 1	N/C	N/C	Alarm 1	N/C	N/C	Alarm 1
F	Gnd	N/C	Gnd	Gnd	N/C	N/C	Dig Gnd

N/C indicates no connection.

1. 0-2 V Analog Output Signal Option

The analog output signal is available on pins B and C of the circular 6 pin connector located on the rear of the unit. The signal is short circuit protected and capable of driving low impedance external loads with fixed gain to a specified output level, with 10K Ohm and above loads. Frequency response is a function of the pressure range, generally 1 to 3 KHZ. Loading of the analog output will result in a reduction of the battery life expectancy due to the additional current through the external load.

2. Alarm(s) Option

The two open drain alarm output signals are present on pin D (alarm 2) and pin E (alarm 1) of the output connector. The alarm trip-points are software selected by using the unit’s front key-pad (see section 3.0 in the instructions section of this manual). When active, they are capable of sinking 500 mA at 60 VDC Max with 7.5 ohms typical ON resistance to the digital ground as if they were two independent SPST normally closed switches with one end connected to the digital ground and the other end presented as an output. The typical configuration will require an external power supply and a 1 to 10K Ohm pull up resistor connected between the positive terminal of the power source and each alarm output. Inductive load switching such as small solenoids or relays is also possible utilizing the alarm output as a “low side switch”. The use of a diode or a capacitor across the load terminals is required to reduce “kick-backs”.