MGP Instruments DOSISYS LDM 210 User Manual

Operation LDM 210 - LDM 220
4.5 Troubleshooting Guide
Symptoms Analysis Remedy
The green POWER LED
does not lit after
applying power.
Verify proper configuration of the
jumpers. Continue use.
See § 3.1, page 12
On the LDM 210, verify the power
supply polarity on the connector
JACK.
On the LDM 210, check the power
supply voltage (7-9 VDC) Correct the polarity.
Start the "VARIOUS TESTS" mode.
If the fault persists, return the reader to
MGP Instruments.
For a battery operated unit:
- Check the status of the 2 1.5 V
batteries. Replace batteries with new ones with the
same characteristics, see §8.3, page 37.
No communication with
the PC
Verify that the reader is powered.
Verify good connection with the
RS232 or USB cable.
Start the "VARIOUS TESTS" mode.. See
§6.2.2.1, page 31.
Verify the proper configuration of
the PC port.
Configure the port.
If the fault persists, return the reader to
MGP Instruments.
No data exchange with
the dosimeter.
Eliminate all sources of
electromagnetic emissions.
Verify that the reader is powered.
Verify communication with the PC Start the self diagnostic and configure the
reader in "Autonomous Mode", see
§6.2.2.3, page 31 and execute procedure
§6.2.3 page 32
If the fault persists, return the reader to
MGP Instruments.
Defective range Start the self diagnostic and configure the
reader in "Autonomous Mode", see
§6.2.2.3, page 31 and execute procedure
§6.2.3 page 32.
Verify the position of port jumpers; see §
2.3.1.2, page 10.
If the fault persists, return the reader to
MGP Instruments.
One of the LED’s does
not light
Configure the reader in
"VARIOUS TESTS” mode ", see
§6.2.2.1, page 31.
Verify that the LED’s are lit.
If the fault persists, return the reader to
MGP Instruments..
Digital Input/output
Problem
Configure the reader in
"VARIOUS TESTS” mode ", see
§6.2.2.1, page 31.
Verify that the status of the DIO
output corresponds to the
inverse of the status of the input.
DI1=0 -> DO1=1
If the fault persists, return the reader to
MGP Instruments..
128569B 25
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MGP Instruments DOSISYS LDM 210 Specifications

General

Brand	MGP Instruments
Model	DOSISYS LDM 210
Category	Measuring Instruments
Language	English