Xylem RH 520 PAPERLESS HUMIDITY/TEMPERATURE CHART RECORDERS - Manual (Page 13)

Model RH520 Version 2.7 7/05 13
SAMPLE RATE DISPLAY
1. Press the VIEW and the TIME buttons simultaneously from the Standard View mode
2. Both numerical displays will switch off so that the LCD can show only the sample rate
in minutes (the MIN display icon will switch on)
3. The projected TIME-DAYS that the internal memory will be full (based on the current
sample rate) is displayed in the TIME and DATE display areas
4. To change the sample rate, refer to the programming section of this manual.
5. Press the VIEW button to return to the Standard View
Transfer logged readings using the PC Interface
The DATA jack on the right side of the meter is used to connect the RH520 to a PC. The
supplied communication cable connects to the DATA jack on the meter and a serial (9-pin)
jack on the PC.
When the communication cable is connected to the meter, the meter begins sending the
contents of its internal memory out through the cable. For this reason, connecting the
meter is the last step as described in the communication procedure below:
1. Store readings in the RH520 as described elsewhere in this manual. Up to 49,152
readings can be stored. However, for the first test, try only a few readings in order to
confirm the operation of the data transfer process.
2. Open a Windows-based data capture program (see Appendix in rear of manual for
recommended programs).
3. Set the data capture program options to BAUD RATE: 57,600; DATA BITS: 8;
PARITY: NONE; STOP BITS: 1; and use XON/XOFF MODE
4. Connect the 9-pin serial connector side of the supplied communications cable to the
PC serial port
5. Connect the other end of the communications cable to the RH520 data jack.
6. The stored readings will automatically appear in the data capture program screen.
Sample rate
in minutes
MINUTES
indicator
Displays how
long it will take
to finish recording
in hours:minutes
months/days/years.
Not the actual date.
12 Hrs 38 minutes 10 months 28 days 3 years