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Version 1.5 August 2001 

SPECIFICATIONS 

 

Range (resolution) 

Accuracy 

Conductivity 

10 - 19,990µS (10

µ

S) 

± 0.5% 

Temperature (34145-A only) 

-30 to 105

o

C ± 

0.5

0

pH 

0.00 to 14.00pH (0.01pH) 

± 0.02pH 

TDS (34135-A only) 

10 - 19,990ppm (10ppm) 

± 0.5% 

Auto/Manual Temperature 
Compensation 

Manual for pH/Auto for conductivity/TDS; 0-100

o

C; 

Correction: 2% per 

o

Power 

 9V battery or optional AC adapter 

Display 

 3-1/2 Digit LCD (90 to 180

o

 adjustable viewing angle) 

Overrange Indication 

Automatic (1---) on all ranges 

Low Battery Indication 

Automatic 

Dimensions/Weight 

 3.75 x 4.25 x 2" (96 x 108 x 45mm) / 12 oz (340g) 

Accessories supplied 

9V battery,  plus: 

341350 kit  pH electrode, pH buffers, bottle, case, glass 

conductivity cell       

341350-P  pH electrode, pH buffers, bottle, case, polymer 

conductivity cell 

341450 kit  pH electrode, pH buffers, bottle, case, glass 

conductivity cell, stainless steel temperature probe    

341450-P  pH electrode, pH buffers, bottle, case, polymer 

conductivity cell, stainless steel temperature probe 

 

METER DESCRIPTION 

 
 

1. LCD 

display 

2. Battery 

compartment 

3. 

AC adapter input 

4. 

Electrode and Temperature 
probe input jacks 

5. Electrode 
6. Neck-strap 

fasteners 

7. Function 

keys 

 

 
 

 

1

2

5

6

3

7

4

Summary of Contents for 34135-A

Page 1: ...s pH Conductivity and TDS The A indicates meter only Models 341350 and 341350 P are kits which include the 34135A and all the necessary accessories The P indicates Polymer type electrode 341350 has glass electrode Model 34145 A measures pH Conductivity Temperature A indicates meter only Models 341450 and 341450 P are kits which include the 34145A and all the necessary accessories The P indicates P...

Page 2: ...anges Low Battery Indication Automatic Dimensions Weight 3 75 x 4 25 x 2 96 x 108 x 45mm 12 oz 340g Accessories supplied 9V battery plus 341350 kit pH electrode pH buffers bottle case glass conductivity cell 341350 P pH electrode pH buffers bottle case polymer conductivity cell 341450 kit pH electrode pH buffers bottle case glass conductivity cell stainless steel temperature probe 341450 P pH elec...

Page 3: ...l measurements have been taken unplug the electrode or cell and rinse in distilled water shake and store as described below Conductivity TDS Calibration The conductivity cell calibration should be performed frequently to ensure accuracy 1 Connect the conductivity cell to the input socket on the side of the meter 2 Prepare a conductivity solution of approximately the same value as the solution to b...

Page 4: ...ts bottle Use a pH 4 buffer solution or tap water as the storage medium 3 If bubbles are seen in the bulb area hold the electrode by its cap and shake downwards until bubbles are removed 4 To improve speed of response vigorously stir the electrode in the sample buffer or rinse solution 5 After exposure to a sample buffer or rinse solution shake the electrode with a snap motion to remove residual d...

Page 5: ...ratic LCD display Samples have low ionic strength lacks salt e g distilled de ionized boiled lake water high pressure For each 50 ml of sample add 1 drop 50uL of SAT KCL No alteration in pH will occur by inert KCL MAINTENANCE Conductivity Cell Simulator The meter is supplied with a cell simulator which can be used in place of the conductivity cell to provide a means to verify the operation of the ...

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