Teledyne 6712SR - Manual (Page 124)

6712SR Refrigerated Sampler
Section 5 Extended Programming
5-36
When asked if you have a rain gauge connected, select YES to
record the rain gauge readings and add RAIN as a sampler
enable option. Select the appropriate tip for the rain gauge. The
sampler will then create a rain memory partition and update the
available sampler enable conditions.
Select NO to disable the readings and the sampler enable option.
When you select NO, the sampler removes the rain memory par-
tition, leaving the memory space available for other reading
types.
5.19.3 I/O Pin Programming Pins C, H, and I on the Rain Gauge Connector are user-con-
figured as I/O1, I/O2, and I/O3 (Input/Output pins) respectively.
Each pin can be either an input for sampler enabling, or an
output for alarms.
Note
The state of the I/O lines is not defined when the sampler is
OFF.
The enable input requires a pulse signal of 5 to 15 volts. Teledyne
Isco offers optional interface modules for converting from a 4-20
mA analog or pulse duration signal.
The alarm output can be set for any RUNNING PROGRAM or
RUN ERROR state. In addition, the CONDITIONS output can
report alarm conditions using the parameters the 6712 is con-
figured to measure. You can set thresholds for one or two condi-
tions and the CONDITIONS output can then trigger alarms
when the measured parameters exceed the threshold.
The alarm output requires an alarm interface module. Teledyne
Isco offers a module designed to provide one, two, or three
contact closures. The alarm module can interface the sampler
with a large number of non-Teledyne Isco devices. For more infor-
mation about the alarm module, contact your Teledyne Isco sales
representative.
5.19.4 Refrigerator
Temperature
Teledyne Isco offers a temperature sensor intended for use with
the 6712FR Refrigerated Sampler. The optional sensor connects
to the Rain Gauge port and uses I/O3 to transmit its temperature
readings to the 6712.
Note
If alarms are being used, the temperature sensor is simply
plugged into the panel mount on the one- or two-alarm output
module. Because the temperature sensor uses I/O3, it cannot
be used with a three-alarm output module.
DO YOU HAVE A
RAIN GAuGE CONNECTED?
YES NO
• Select YES.
RAIN GAUGE:
0.01 inch TIP
0.1 mm TIP
• The rain gauges are set up to
tip on either .01 inch or .1 mm.
Select the desired tip.