8
Installation
K0394 Issue 3 - [EN] English
Pressure connections
CAUTION: Do not use the body of the DPI 104 to tighten the
pressure connection, this can cause damage. Use the flat faces
on the pressure connector to hold the body and tighten the
pressure union.
Use an applicable method to seal the pressure connections, and
then tighten to the applicable torque (Figure 1 and Table 5).
Figure 1:
Connection methods
Table 5: Key to figure 1
Electrical connections
The DPI 104 includes an 8-pin electrical connector (A1: item 1).
Table 6 shows the pin connections.
Table 6: Connections for the 8-Pin connector
Item
Description
1.
Applicable DPI 104 pressure connector.
Maximum torque:
1/4 NPT: 68 Nm (50 lbf.ft)
G1/4: 20 Nm (15 lbf.ft)
9/16 x 18 UNF cone: 34 Nm (25 lbf.ft).
2.
(1/4 NPT only) Thread with an applicable sealant.
3.
(G1/4 only) Applicable bonded seal.
1
3
1
2
1
c) 9/16 x 18 UNF cone:
Pressure
≥
1000 bar (15000 psi)
a) 1/4 NPT:
Pressure
<
1000 bar (15000 psi)
b) G1/4:
Pressure
<
1000 bar (15000 psi)
Connector
Pin
Input/
Output
Description
1.
Input
12-24 Vdc power supply (+)
2.
Input
Signal ground (GND)
3.
Output
RS232 transmit (Tx)
4.
Input
RS232 receive (Rx)
5.
Output
Voltage output (Vo)
6.
Output
Alarm output
7.
Input
Pressure switch input
8.
Output
No connection
