Rev. 2-300
Accu4™ Low-range Turbidimeter System
5
CONDENSED OPERATING INSTRUCTIONS
This manual contains details for all operating aspects of the Accu4™ Low-range Turbidimeter System.
The following condensed instructions are provided to assist you in getting the system started up and op-
erating as quickly as possible.
These condensed instructions only pertain to basic turbidity
measurement operation.
To use specific analyzer features, refer to the appropriate sections in this
manual for instructions.
1. CONNECTING SENSOR
After the T53 analyzer is properly mounted (Part Two, Section 2.5), connect the GLI Model 8320 low-
range turbidity sensor, matching wire colors to terminals as indicated:
Sensor Wire
Colors
Analyzers with
“B” Prefix Serial No.
Analyzers with
No Letter Prefix Serial No.
Inner Shield
Grounding strip lug
Terminal #11 on TB1
Red
Terminal #12 on TB1
Terminal #12 on TB1
Violet
Terminal #13 on TB1
Terminal #13 on TB1
Green
Terminal #14 on TB1
Terminal #14 on TB1
White
Terminal #15 on TB1
Terminal #15 on TB1
Yellow
Terminal #16 on TB1
Terminal #16 on TB1
Inner Shield
Grounding strip lug
Terminal #17 on TB1
Brown
Terminal #18 on TB1
Terminal #18 on TB1
Gray
Terminal #19 on TB1
Terminal #19 on TB1
Blue
Terminal #20 on TB1
Terminal #20 on TB1
Black
Terminal #21 on TB1
Terminal #21 on TB1
Orange
Terminal #22 on TB1
Terminal #22 on TB1
2. CONNECTING LINE POWER
Important:
Follow the instructions in Part Two, Section 3.5 to connect line power to the analyzer.
3. ADJUSTING DISPLAY CONTRAST
Ambient lighting conditions may make it necessary to adjust display contrast to improve visibility.
With the MEASURE screen displayed, press and hold the
ENTER key
and simultaneously press the
×
×
or
Ø
Ø
key
until attaining the desired contrast.
4. CALIBRATING SYSTEM
Always initially calibrate
the Accu4™ Low-range Turbidimeter System to ensure accurate meas-
urement. Any time thereafter, you can conveniently check system calibration using an optional
accessory Cal-Cube
TM
assembly.
•
When you need to calibrate with a
primary standard
, use the “PRIMARY CAL” calibration
method. GLI only guarantees measurement accuracy when a 40 NTU formazin suspension is used
as the primary standard.
•
When calibration need not conform to USEPA requirements
, use the “CUBE CAL” calibration
method (requires optional GLI CAL-CUBE™ assembly) or the “SAMPLE CAL” method.
Refer to Part Three, Section 5 for instructions on all calibration methods.
5. COMPLETING ANALYZER CONFIGURATION
To further configure the analyzer to your application requirements, use the appropriate CONFIGURE
screens to make selections and “key in” values. Refer to Part Three, Section 4 for complete configu-
ration details.
