Bacharach H25-IR PRO, User Manual

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Wiring H25-IR PRO Instruction Manual
32 P/N: 3015-5678 Rev 6
The default current-to-ppm factor is set to 0.016 mA = 1 ppm, providing a measurement range of 0 ppm (4 mA) to 1,000 ppm
(20 mA). Note that the current-to-ppm factor can be changed using the instrument’s Loop Factor function. Refer to Loop
Factor on page 68.
NOTE: Be sure to configure/verify the Loop Factor setting (see Loop Factor on page 68).
4.4. RS-232 Communications Connection
Leak rate data can be output as ASCII text via the 9-pin RS-232 connector on the back panel of the H25-IR PRO. Using a
standard RS-232 cable, connect the H25-IR PRO to a computer. To export ASCII formatted live data to a computer, you need:
•
Serial communications software package (e.g., HyperTerminal
ä
)
•
Personal computer with an available COM port and running Windows ® 95/98/2000/NT/XP/Vista/7 or later
•
9-pin-female to 9-pin-male serial cable (for example, P/N 104-4027)
NOTE: Be sure to configure your H25-IR PRO to send the ASCII data in the appropriate format (text packet or text
only). Also, be sure that the communications settings on your computer match those listed below.
Table 4-1. RS-232 Communications Settings
Setting Value
Baud Rate 19200
Parity None
Stop Bit(s) 1
Flow Control None
NOTE: USB-to-Serial adapters may work, but are unsupported.
4.5. Standard Versus Smart Probe Wiring
When the H25-IR PRO is shipped from the factory, it has been configured to use the probe & hose assembly that was supplied
with the instrument.
If a different probe style is used, then the ribbon cable from the front panel PROBE connector must be reconnected to either
J2 or J7 of the LCD printed circuit board, located behind the front panel, as follows.
WARNING: SHOCK HAZARD. When performing this procedure, turn OFF the instrument and disconnect its
AC power cord.