FEATURES
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  • pH, Conductivity, TDS, DO Salinity, mV & Temp. Measurements
  • Turbidity Measurement (Model - 191)
  • Colorimetric Measurement (Model - 171)
  • Both Turbidity & Colorimetric Measurement (Model - 172)
  • Mains cum Battery Operated
  • Available in ABS Plastic Briefcase

SPECIFICATIONS

Model 161 191 171 172
Display 3½ Digit LCD
 3½ Digit LCD
 3½ Digit LCD
 3½ Digit LCD
pH



Range 0 - 14 pH 0 - 14 pH 0 - 14 pH 0 - 14 pH
Resolution 0.01 pH 0.01 pH 0.01 pH 0.01 pH
Accuracy 0.01, ± 1 Digit 0.01, ± 1 Digit 0.01, ± 1 Digit 0.01, ± 1 Digit
Temp. Comp. 0 - 100 °C (Manual) 0 - 100 °C (Manual) 0 - 100 °C (Manual) 0 - 100 °C (Manual)
Conductivity



Range 0 - 200 μS
0 - 2, 0 - 20,
0 - 200 mS		 0 - 20 mS 0 - 20 mS 0 - 20 mS
Resolution 0.1 μS 0.01 mS
(10 μS)		 0.01 mS
(10 μS)		 0.01 mS
(10 μS)
Range Select Manual - - -
Accuracy ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit
Cell Constant Adjustable
(0.4 - 1.5)		 Pre-Adjusted Pre-Adjusted Pre-Adjusted
Temp. Coeff. 2% 2% 2% 2%
Temp. Comp. Adjustable
from Table		 Adjustable
from Table		 Adjustable
from Table		 Adjustable
from Table
Ref. Temp. 25 °C 25 °C 25 °C 25 °C
Temperature



Range 0 - 100 °C 0 - 100 °C 0 - 100 °C 0 - 100 °C
Resolution 0.1 °C 0.1 °C 0.1 °C 0.1 °C
Accuracy ± 0.1 °C
± 1 Digit		 ± 0.1 °C
± 1 Digit		 ± 0.1 °C
± 1 Digit		 ± 0.1 °C
± 1 Digit
Sensor Semiconductor Semiconductor Semiconductor Semiconductor
TDS



Range 0 - 200 ppm
0 - 2, 0 - 20,
0 - 200 ppt		 0 - 20 ppt 0 - 20 ppt 0 - 20 ppt
Range Select Manual - - -
Resolution 0.1 ppm 0.1 ppt 0.1 ppt 0.1 ppt
Accuracy ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit
Cell Constant On Display
(0.4 - 1.5)		 Pre-Adjusted Pre-Adjusted Pre-Adjusted
DO



Range 0 - 20 ppm 0 - 20 ppm 0 - 20 ppm 0 - 20 ppm
Resolution 0.1 ppm 0.1 ppt 0.1 ppt 0.1 ppt
Accuracy 0.5 ppm,
± 1 Digit		 0.5 ppm,
± 1 Digit		 0.5 ppm,
± 1 Digit		 0.5 ppm,
± 1 Digit
Temp. Comp. 5 - 55 °C
(Manual)		 5 - 55 °C
(Manual)		 5 - 55 °C
(Manual)		 5 - 55 °C
(Manual)
Sensor Gold/Silver
Amperometric		 Gold/Silver
Amperometric		 Gold/Silver
Amperometric		 Gold/Silver
Amperometric
mV (ORP)



Range 0 - ± 1999 mV - - -
Resolution 1 mV - - -
Accuracy 1 mV, ± 1 Digit - - -
Turbidity



Range - 0 - 1000 NTU -
 0 - 1000 NTU
Resolution - 1 NTU -
 1 NTU
Accuracy -
 ± 3% FS,
± 1 Digit		 -
 ± 3% FS,
± 1 Digit
Sample System -
 30 mm clear Glass Tube -
 30 mm clear Glass Tube
Salinity



Range 0 - 50 ppt 0 - 50 ppt 0 - 50 ppt 0 - 50 ppt
Resolution 0.1 ppt 0.1 ppt 0.1 ppt 0.1 ppt
Accuracy ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit		 ± 0.5% FS,
± 1 Digit
Colorimeter



Abs - - 0 - 1.99 0 - 1.99
Filters
 -
 - 5 5
Resolution
 - - 0.01 A 0.01 A
POWER SUPPLY 1.5V x 6
Dry Cells/
230 V ± 10% AC, 50 Hz.		 In-built Chargeable Battery
230 V ± 10% AC, 50 Hz.		 In-built Chargeable Battery
230 V ± 10% AC, 50 Hz.		 In-built Chargeable Battery
230 V ± 10% AC, 50 Hz.
ACCESSORIES pH Electrode, Cond/TDS/Salinity cell, DO Probe, Temperature Probe, pH Bottles, pH Tablets, Turbidity Test Tubes (Model - 161 & 191), Colorimeter Test Tube (Model - 171 & 172), Dry Cell Container - (Model - 161), Mains Lead, Operation Manual
Note : Specifications are subject to change due to continuous improvements.