7
Power and Signal Connections
Power can be supplied to your gauge or controller through either the AC/DC adapter jack or through the
8 pin Mini-DIN connector as shown in Figure 1.
A 2.1mm, positive center, 7-30 Vdc AC/DC adapter rated for at least 100 mA is required to use the
adapter jack in a
P Series pressure gauge
.
A 2.1mm, positive center, 12-30 Vdc AC/DC adapter rated for at least 250 mA is required to use the
adapter jack in a
PC
or
PCD Series pressure controller. Note:
4-20mA output requires at least 15
Vdc.
A 2.1mm, positive center, 24-30 Vdc AC/DC adapter rated for at least 500 mA is required to use the
adapter jack in a
PCR Series pressure controller.
Cables can be purchased from the manufacturer (see Accessories on page 41)
or they are available
from electronics suppliers. Alternatively, power can be supplied through the Mini-DIN connector as
shown below:
7
8
1
2
3
4
5
AC/DC Adapter Jack
6
1
3
2
4
5
6
7
8
Pin
Function
Mini-DIN cable
color
1
Inactive or 4-20mA Primary Output Signal
Black
2
Static 5.12 Vdc or Secondary Analog Output (4-20mA, 5Vdc, 10Vdc)
or Basic Alarm
Brown
3
RS-232 Input Signal
Red
4
Analog Input Signal = Remote Tare (Gauges - see Figure 7)
= Set-Point In (Controllers - see Figure 2)
Orange
5
RS-232 Output Signal
Yellow
6
0-5 Vdc (or 0-10 Vdc) Output Signal
Green
7
Power In (as descibed above)
Blue
8
Ground (common for power, communications and signals)
Purple
Note:
The above pin-out is applicable to all pressure gauges and controllers available with the Mini-DIN
connector. The availability of different output signals depends on the options ordered.
Underlined
Items
in the above table are optional configurations that are noted on the unit’s calibration
sheet.
Figure 1. 8 Pin Mini-DIN Connector
CAUTION:
Do not connect power to pins 1 through 6 as permanent damage can occur!
Note:
Upon initial review of the pin out diagram in Figure 1,
it is common to mistake Pin 2 (labeled
5.12 Vdc Output) as the standard 0-5 Vdc analog output signal!
In fact Pin 2 is normally a constant
5.12 Vdc that reflects the system bus voltage and can be used as a source for the input signal. This
allows the user in the field to run this output through a 50K ohm potentiometer and back into the analog
set-point pin to create a 0-5 Vdc set-point source (see Figure 2).
AC/DC Adapter Jack
Summary of Contents for 16 Series
Page 32: ...32 P Series All standard ranges P Series Differential Pressure All standard ranges 2 3 0 ...
Page 33: ...33 PC Series All standard ranges PC Series Differential Pressure All standard ranges 2 ...
Page 34: ...34 0 PC3 Series All standard ranges PCR3 Series All standard ranges ...
Page 35: ...35 5 7 6 8 7 8 PCR Series Differential Pressure 5inH2O PCR Series Most standard ranges ...
Page 36: ...36 PCD Series All standard ranges PCD Series Differential Pressure All standard ranges ...
