Orion Research Log R Compensator 611 Digital Meter

About This Item
Acquired from the US Government. Actual item is shown. Only what is shown is included. Guaranteed functional. Serials are 66438

FULL Manual for the Log R Compensator - HERE


Front Panel Controls
Mode Switch
pH Calibration Control (approx. ± 100 mV)
Slope Control (80 - 105% theoretical)

pH Range
0.00 to 14.00 with pH 7 isopotential point
Relative pH Accuracy
± 0.01 pH over any 3 pH units span between buffer points

Millivolt Range
± 1999 mV

Milllvolt Relative Accuracy
± 1.0 mV or 0.2% of reading, whichever is greater

Temperature Measuring Range
- 10.0 to + 110 °C

Temperature Accuracy
± 1 °C between 0 and 100 °C ± 0.5 °C between 10 and 60 °C (typical accuracy using commercially available laboratory type combination and half cell pH electrodes standardized at room temperature)

Dissolved Oxygen Range
0.00 to 19.99 ppm

Dissolved Oxygen Accuracy
Determined by oxygen electrodes (see Model 97-08 Dissolved Oxygen Electrode Instruction Manual for specifications)

Rear Panel Outputs
- 10μA polarizing current for Karl Fischer titrations; strip chart recorder output 0 - 100 mV
( ± 2000 mV) span for full scale reading

Rear Panel Controls
Test Switch: Allows correct meter performance to be assessed and pH electrode resistance
to be estimated
Temperature Calibration: For standardizing meter with respect to temperature

pH Electrodes Accepted
Most glass types with pH 7 isopotential and BNC input connectors having room temperature resistance in the range of 50 - 1500 megohms

pH Temperature Compensation
Automatic at all times without the use of a thermocompensator when meter is in the pH operating mode

Display
1.5 cm high LED

Power Requirement
100/115/220/240 V ( ± 10%), 50/60 Hz, 16 watts

Case
9 cm high x 33 cm wide x 18 cm deep, 5 kg; steel painted with scratch and chemical resistant paint

Accessories
Electrode holder, electrode support rod, BNC shorting cap, instruction manual, meter support rod