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4.3.2 Retrieve the
Temperature Log
Table 4-1 4700 Errors
Message
Description
The sampler was unable to detect liquid.
NO LIQUID DETECTED
After the sampler detected liquid and while the
NO MORE LIQUID
sample was being taken, the liquid detector
stopped detecting liquid.
NOT ENOUGH FLOW
Not enough flow was measured to produce the
minimum sample volume while collecting flow-pro-
portional sample volumes (CTVV).
The power was interrupted at the sample event
POWER FAILED!
time.
USER STOPPED PUMP
The Stop button was pressed during the sample
event.
The program was paused at the time of the sam-
PROGRAM PAUSED
ple event.
The pump did not operate correctly. The sampler
PUMP FAILURE
reports this error when some obstruction has
stopped the pump rotor from turning, or when the
pump band is open.
The program was halted.
PROGRAM HALTED
The sampler did not deliver the sample because it
PROBABLE OVERFLOW
would have over-filled the bottle.
The log presents a summary that lists the average, minimum
and maximum temperatures from the last program. Should more
complete temperature data be required, the sampler can provide
a detailed report containing temperature readings at one-minute
intervals. This report requires a connection to a personal com-
puter.
To connect the sampler to a computer, use the optional 3.8 m
(12.5 ft) RS-232 serial communication cable, 69-4704-042 (Figure
4-1). This cable connects to the DB9-pin serial port connection on
a computer. Connections to a computer without the DB9-pin
serial port will require a user-supplied USB to serial port
adapter.
To collect the detailed temperature data:
1. Connect the computer to the sampler's external device con-
nector with cable 69-4704-042.
2. Configure your communications software (HyperTerminal,
for example) for:
· a baud rate no higher than 38,400
· 8 data bits
· no parity
· 1 stop bit
· No flow control
· Auto Detect or VT100 terminal emulation.
Isco 4700 Refrigerated Sampler
Section 4 Operation
4-5
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