2. INSTALLATION
Page 11
© 2007 DH Instruments, a Fluke Company
When external Q-RPTs are used with PPCH-G, the maximum set pressure is the
maximum pressure of the PPCH-G controller/calibrator. The maximum pressure of
the PPCH-G is determined by the PPCH-G controller model or the Hi Q-RPT if one is
installed (see Section 1.2.1).
Using a standard pin-to-pin DB-9M to DB-9F RS232 cable, connect COM2 of
the PPCH-G to COM1 of the RPM4 (see Section 4.2.1.3).
Turn ON the RPM4 and the PPCH-G.
Press
[RPT]
on the PPCH-G key pad. This causes PPCH-G to execute the
Q-RPT search function (see Section 3.3.5). Following the search, Q-RPTs
with whom communication is established are shown on the PPCH-G display,
identified by their position (see Table 4).
For PPCH-G to identify an external RPM4, the RPM4 COM port settings must be:
Baud rate: between 1200 and 19200
Parity:
Even
Data bits: 7
Stop bits: 1
If PPCH-G is not able to establish communications with an RPM4 and its Q-RPTs,
check that the RPM4 COM1 port settings conform to the requirements above. If the
COM1 port settings are correct, check that the correct communications cable is
being used (standard pin-to-pin DB-9M to DB-9F RS232) and is connected to the
correct communications ports.
See the RPM4 Operation and Maintenance Manual for additional information on
RPM4 RS232 communications and COM port settings.
1. PPCH-G
2.
2.75 in. (70 mm) DH500 nipple
3. DH500
tee
4.
12 in. (305 mm) DH500 nipple
5.
DH500 tee (RPM4) or union (PG7000)
6.
6 in. (152 mm) DH500 nipple
7.
DH500 union (RPM4) or tee (PG7000)
8.
5 in. (127 mm) DH500 x 1/8 in. tube
weld nipple (slightly flexible)
9a. RPM4 or RPM3
9b. PG7202
Figure 3.
Connecting PPCH-G to an RPM4 or PG7202
using the standard PPCH-G interconnection accessories
