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Titrators

Model 270 Multi-Mode Meter and Titration Controller

In addition to titration control, Model 270 MultiMode Controller offers other measurement modes:
  • Conductivity Mode that covers 0 to 3 x 105 in 5 sub-ranges, readout in mS/cm or µS/cm, and measurement of salinity, resistivity and TDS.
  • Ion Mode with a range of 9.99 x 109 to 1.00 x 10-9 and direct readout in any units, plus 8 indirect modes.
  • pH Mode with selectable resolution to 0.001pH; mV Mode with a range of ±1800.0 mV, absolute or relative, and even direct temperature readout in °C, °F or °K.

Denver Model 275KF Coulometric KF Titration Module
Microprocessor-controlled by Denver Model 270 Titration Controller

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Titration Mode
Range 10µg to 20mg H2O
Accuracy ±2µg or ±0.5%
Resolution 0.1µg
Rate 3500µg H2O/min. (maximum)
Endpoint Control 0 to 99 sec. persistence time and 0 to 9.9 µg/sec. slope (programmable)
Capacity 1000mg H2O (for single charge reagents)

Controller Specifications
Displays 4.8"W x 3.6"H Backlit VGA resolution
Titration Full-screen display of titration progress
Measurement 3/4"H single channel, 5/16"H dual channel
Information 1/8"H for date, time, temperature, standards
Menus Guide user through all modes and procedures
Help Screens Context-sensitive aid for keys and procedures
Keypad Controls Sealed; audible entry
Data Memory Points 620
Power-on Self-test Yes
Error Messages Yes
Data Output On demand; when stable; at selected intervals at titration completion
I/O RS-232-C to computer or printer;
serial net work to
titrator modules
Alarm High/low set points for all modes

Model 270 Additional Modes
Conductivity Range 0 to 3 x 105, ±0.5% µS/cm
Salinity Ranges 0 to 70ppt NaCI equiv. salinity; ±0.5%,
0 to 42 ppt Practical Salinity; ±0.5%
Resistivity 30 to 100 megohmocm; ±0.5%
pH -2.000 to 20.000; ±0.002
Ion 1.00 x 10-9 to 9.99 x 109; ±0.17n%
mV ±1800.0; ±0.1
Temperature -5.0° to +105.0°C; ±0.3°C,
Inputs RS-232-C to computer;
two BNC/pin (for pH/ISE/mV);
two ATC; conductivity/ATC