17
7.0 Diagnostic/Troubleshooting
Chart
8.0 Error/Alarm Messages and
Suggested Actions
9.0 Technical and Customer
Assistance
If for any reason assistance is needed regarding this instrument please
do not hesitate to contact either the HF scientific Technical Service
Department or the HF scientific Customer Service Department:
Symptom
Cause
Cure
Display shows MA
4 - 20 mA loop open
Check wiring
Display shows FAIL
Major system fault
Contact HF scientific Technical
Support
Readings are erratic (1) Bubbles in solution
(2) Debris in water sample
(1) Check for air leaks
(2) Clean T-strainer at inlet
Readings are lower
than expected
(1) Leaky measurement
cuvette
(2) Measurement cuvette dirty
(3) Reagents bad or expired
(4) Buffer reagent not
(1) Check seating of cuvette on the
O-rings
(2) Replace or clean cuvette
(3) Replace reagents
(4) Attempt a prime procedure, check
the status of reagent pump(s)
Display flashes
Sample Over-Range
Check sample. Sample may be too
high to read.
Display shows none
while attempting to
calibrate
No current reading displayed
Wait for SSR-Ex to post a reading
No display on
SSR-Ex
Air Sentinel II issue with air
supply
Troubleshoot air supply system and
Air Sentinel II
ERROR DISPLAYED Definition
Suggested Action
Solenoid 1
Reagent solenoid 1 problem
Test solenoid, try factory reset
Solenoid 2
Reagent solenoid 2 problem
Test solenoid, try factory reset
Drain Valve Error
Problem with the drain valve
(1) Flush the SSR-Ex
(2) Clean the drain solenoid
(3) Clean the optical assembly drain
orifice
4 - 20 mA Output
Error
Analog output problem
Check for open loop
12 V Monitor Error
Power supply Issue
On board power supply problem, try
factory reset
Optical Sensor Error Measurement error
Wait for SSR-Ex to post a reading, try
factory reset
EEPROM Error
Non-volatile error
Try factory reset
Main Board Lost
Internal communication loss
Check cable connections, try factory
reset
Low Setpoint Alarm
Reading below set point
Check source water oxidant level
High Setpoint Alarm Reading above set point
Check source water oxidant level
10.0 Spare Parts Listing
Part/Kit Name
Description
Frequency of part or kit
change
Calibration Kit - 28144S
Description - Includes 125 ml
solution #1, 125 ml solution #2,
and a spare cuvette
Frequency – As required by
regulatory authority
Air/Filter Dryer Assembly
- 28139
Description - Includes air prep
assembly and appropriate fittings
Annual or when red indicator
is shown. See kit below.
Air Filter/Dryer Element
Replacement Kit -
28140S
Description - Qty. 1 AMG-EL150,
Qty. 1 AF20P-060S, and Qty. 1
AMH-EL150
As needed
TOTAL Chlorine SSR-Ex
DRY REAGENT KIT (30
Day Supply) - 110186
Description - Includes DPD
tube, Indicator, Buffer in reagent
bottles, MSDS documents
As needed
TOTAL Chlorine SSR-Ex
Liquid REAGENT KIT (30
Day Supply) - 110187
Description - Includes DPD
tube, Indicator, Buffer in reagent
bottles, MSDS documents
As needed
T-Strainer/ Pressure
Regulator Assy - 28143S
Description - Includes both the
T-strainer and pressure regulator
assembly.
As needed
Replacement T-Strainer
Screen - 28145S
Description - Includes Qty. of 1,
replacement T-strainer screen
As needed
Replacement Peristaltic
Pump Head - 28141S
Description - Includes
replacement pump head
As needed
Reagent Tubing Kit -
28142S
Description - Includes Injectors,
O-rings, Idex nuts, Ferrules,
Coupling nuts and C-Flex tubing.
As needed
Pressure Regulator (Inlet
Water) - 24320S
Description - Includes Qty. of 1,
Watts
®
Pressure Regulator
As needed
To order any accessory or replacement part, please contact the HF
scientific Customer Service Department. If for any reason technical
assistance is needed regarding this instrument, please do not hesitate
to contact the HF scientific Technical Services Department. Each spare
part will include appropriate instructions of proper use.
