Troubleshooting
Select output channel interface U by using the command ´
A1
´,
Address the device with its device number ´
Gxy
´ (s. man. 6.2.1),
if the computer is in XOFF state, enter <Strg Q> for XON,
query the programming through ´
P15
´ (s. man. 6.2.3),
Only check the sending line by cycle input via command ´
Z123456´
and control in the display
Test the receiving line with the key
<PRINT>
and by monitor control.
Error:
Data transmission within the network does not function.
Remedy:
Check that all devices are set to different addresses, address all de-
vices individually via terminal and command ´
Gxy
´.
Addressed device is OK when the feedback is at least ´
y CR
LF
´.
If data transmission is still not possible, disconnect networked devi-
ces, check all devices separately using the data cable of the compu-
ter (see above),
check the wiring regarding short circuit or twisting.
Are all network distributors supplied with power?
Network and check the devices successively again (see above).
If the device is, after the above inspections, still not performing as specified in
the operating instructions, it must be sent to the factory in Holzkirchen, Germa-
ny, including a short report and, possibly, control printouts. Additionally, the
software AMR-Control allows to print the monitor pages including the program-
ming and also to save an extensive ´function test´ in the device list or the termi-
nal operation and to print it out.
12. ELECTROMAGNETIC COMPATIBILITY
The data logger ALMEMO 2690-8 meets the essential electromagnetic com-
pability safety requirements issued in the relevant CE directive 89/336/EWG.
The following standards have been applied for the evaluation of the product:
IEC 61326:1997+A1:1998+A2:2000
IEC 61000-6-1:1997
IEC 61000-4-2: 1995+A1:1998+A2:2000 8kV
IEC 61000-6-3:1996
IEC 61000-4-4: 1995+A1:2000 2kV
IEC 61000-4-3: 1995+A1:1998+A2:2000 3V/m
The following notes must be observed when operating the instrument:
1. If the standard sensor cables (1.5m) are extended it must be considered that the
measuring lines are not guided together with power mains and that they are appro-
priately shielded to protect against any coupling of disturbance signals.
2. If the instrument is operated within strong electromagnetic fields an additio-
nal measuring error must be expected (<50µV at 3V/m and 1.5m thermo-
couple transducers). After the irradiation the device operates again within
the specified technical data.
ALMEMO
®
2690-8
71
