YSI 6500 Environmental Process Monitor - Manual (Page 8)

Item #065979 - Web DRW# A065979C October 1998
MENU FLOW DIAGRAM
BASIC TROUBLESHOOTING
This section is designed to help identify and solve a few basic
problems that may occur in your 6500 system. See the Trouble-
shooting section in the Sondes manual for additional information.
Display is completely blank. (1) Check contrast adjustment. Press
and hold Cal while pressing the up or down arrow key to adjust.
(2) No AC power to 6500 unit. Check switches, breaker box,
ground fault protection devices and surge protection devices. If
protection device failure, determine cause before repowering.
Display reads ‘No sonde on line’. (1) Check MS-8 sonde con-
nector to 6500 connector and insure proper connection. The con-
nector should be screwed on tight. (2) If a breakout box or other
junction box is employed, check for good connections. (3) Attempt
reset by turning AC power off, then back on. (4) Sonde baud rate
or Autosleep functions may be improperly set.
Display reads ‘Out of range’. This indicates that the sensor out-
put during calibration does not conform to normal values. (1) Ver-
ify that you are using the correct cal standard solution and that it is
not contaminated. (2) Verify that you have entered the correct cal
value. (3) Check to insure that all sensors are fully submersed in
cal solution. (4) Check for fouled sensors.
Display reads ‘High DO charge’. Indicates a malfunction of the
DO sensor, usually deposits on the electrode surface. (1) Repeat
calibration procedure to verify the problem. (2) If message is a
warning and you override, performance of the sensor measurement
may be compromised. See the Sondes Operation Manual for more
information.
Sensor Report Calibration Display Relays
Temp
ISE1 pH
DOSat
Cond
6500 MAIN MENU FLOW CHART
4-20 mA
Date
Time
Temp C
Cond mS/cm
SpCond mS/cm
more...
Cals enabled
Advanced setup
Relay status
Configure relays
Contrast
Test relays
Sp Conductivity
Conductivity
Salinity
DO % by inch Hg
DO % by mm Hg
DO mg/L
more...
Version x.xx mdy
Wiper interval = 1
Channel [ 4 ] [ 20 ]
1 Temp C 0.000 30.00
2 DO mg/L 0.000 16.00
3 ------------- 0.000 0.000
more...
4 ------------- 0.000 0.000
5 ------------- 0.000 0.000
Lines/display
Test 4-20 mA
Configure 4-20mA
Modbus Address System
Old Address
New Address
Enable Modbus
Base Address
Hardware
more...
1725 Brannum Lane
Yellow Springs, Ohio 45387 USA
(800) 897 4151 " (937) 767 7241
Fax: (937) 767 9353
www.ysi.com
Email: [email protected]