Ranger 7000
®
Series Service Manual
11
Ohaus Corporation www.ohaus.com
2
DIAGNOSTIC GUIDE
This section of the manual contains troubleshooting information. Information is contained to isolate
specific problems using Table 2-1, Diagnostic Guide. Follow all directions step by step. Make certain
that the work area is clean. Handle scale components with care. Use appropriate electro-static
protection devices to prevent damage to the sensitive electronic components.
2.1
TROUBLESHOOTING
General procedures for Troubleshooting:
1. Do the most obvious, user-level remedies.
2. Visual Check:
- Check that the internal parts are clean and free from debris.
- Examine the scale for damage or signs of abuse, replace any damaged items.
3. Use the error code table for solutions for specific codes.
4. Use the Diagnostic Guide; locate the symptom then follow the suggested remedies in order.
Note: Allow equipment to warm up for 60 minutes on precision models for optimal weighing
performance. Allow 4 hours for analytical models to stabilize.
2.2
SOFTWARE
In most cases understanding the customer’s problem with the scale is easy. Physical damage,
displayed error code, failure to power up and obvious poor performance can usually be repaired by
following the instructions in the following sections.
Some scale issues may be software related. New releases of the software may correct these
issues. The Ranger 7000
®
Scale has upgradeable software in the Terminal and the Base modules.
The software revision in the scale can be seen when the scale is in standby mode or during the
power up sequence. The software version is displayed in the lower right hand corner of the screen.
The screen will show:
Model number
for example:
Ranger 7000
®
R71MD3
Capacity and readability
3000g x 0.05g
Software Revision “Terminal” / “Base”
Version 1.00 / 0.14
The scale software can also be retrieved by sending a “PV” command via the RS232 or other
interface.
Summary of Contents for Ranger 7000 R71MHD3
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