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Table 9 Diagnostic codes (continued)
Code
Display
23
Test results are shown.
24
Test results are shown.
Delete calibration data
To delete any calibration data entered by the user:
1. Turn off the instrument.
2. Push and hold CAL/Zero.
3. Turn on the instrument.
The CAL? light flashes. The instrument starts in Calibration mode.
4. Calibrate the instrument before use.
Flashing 9s
When manual ranging is selected, the display will flash all 9s when the
sample being measured is greater than the selected range.
When automatic ranging is selected, the display will flash 9s when the
sample is greater than the maximum range of the instrument. The
display will also flash 9s if Ratio is off and the measurement is greater
than 40 NTUs (268 nephelos or 9.8 EBCs). Turn Ratio on. Refer to
Measure over-range samples
on page 25.
Flashing 0s
When manual ranging is selected, the display will flash all 0s when the
sample measured is less than the selected range.
When automatic ranging is selected, the display will flash all 0s when the
measurement is less than the range of the instrument or a negative
value. Calibrate the instrument.
• When measuring color, absorbance or transmittance, set the zero
reference point again.
• When measuring absorbance, make sure that the reading is positive.
To measure samples with negative absorbance, set the analytical
zero using the sample with the greatest absorbance and read the
sample with the least absorbance. Record the reading as negative
Description
absorbance.
Keyboard test
Replacement parts and accessories
Memory test
Note: Product and Article numbers may vary for some selling regions. Contact the
appropriate distributor or refer to the company website for contact information.
Replacement parts
Description
Calibration kit, StablCal
cells (<0.1, 20, 200, 1000, 4000 and
7500 NTU)
Cover, sample cell compartment
Cover, lamp access
Cover, printer
Dust cover
Filter assembly, USEPA
Filter assembly, 455 nm
Fuse for 115 V operation, time-delay,
250 V, 1.6 A, UL/CSA approved
Fuse for 230 V operation, time-delay,
250 V, 1.6 A, IEC type, VDE approved
Gelex
kit
(stray light standard and 0–2, 0–20, 0–200,
200-4000, and 4,000–10,000 NTU)
Lamp replacement kit
Oiling cloth
Power cord, North America, 115 VAC,
UL/CSA approved
®
, sealed sample
®
secondary turbidity standardization
Quantity
Item no.
1
2659505
1
4702500
1
4703200
1
4705400
1
4703000
1
3031200
1
1999800
1
3030700
1
3030600
1
2589200
1
4708900
1
4707600
1
1801000
English 55
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