Residual Chlorine Meter CR-200

Overview

This residual chlorine meter realizes simultaneous display of measured values and parameter settings as well as a simplified calibration procedure including a zero calibration omission function and span calibration using low-concentration samples. This makes the CR-200 optimal for measurement of residual chlorine requiring stability and accuracy.

Features

  • Span calibration using low-concentration measurement liquids
  • Automatic evaluation of sensor performance
  • Improved indicator stability
  • Simplified calibration procedure
  • Large, customized LCD
  • Simultaneous display of measured values and parameter settings

Manufactured by HORIBA Advanced Techno

Specifications

Model

CR-200

Measuring method

Galvanic battery method

Measuring range

0 - 2.0 mg / L

Indicator resolution

0.1 mg / L

Reproducibility

Within ± 3 % / FS (versus chemical analysis)

Conditions

Measured water temperature change within ± 5 °C

pH range

pH 6 - 8 (fixed)

Transmission output

DC 4 - 20 mA (isolated input / output type), max. load resistance: 500 Ω, linearity: 0.5 % FS

Adjustment function

1c contact output, 2 CH independent capacity: AC 250 V, 3 A max. (resistance load)

Control operation

On / off operation, upper limit (H) or lower limit (L) (selectable with internal DIP switch)

Calibration functions

Zero calibration (with zero adjustment omission function), span calibration (calibrated by matching with DPD tester)

Additional functions

Various error messages
1. Calibration error (zero point error, gain error)
2. Outside measuring range error (over full scale, under full scale)
3. System error (defective AD converter, memory error)

Transmission output
during calibration

Continuous, hold (holding of previous value, holding of arbitrary value) (selectable with internal DIP switch)

System interlock
contact input

1a contact input (ALM1: enable, disable, ALM2: enable, disable) (selectable with internal DIP switch)

Ambient temperature
and humidity

-5 to 50 °C, 85 % RH or less

Power supply

AC 100 - 115 V or AC 200 - 240 V, 50 / 60 Hz, 7 VA (as per user instructions)

Structure

Outdoor installation type: JIS C0920 protective grade: 3 (rain-proof type)
Installation method: 50 A pole or wall mounting
Case: Cast aluminum alloy (paint color: DIC G-262 or equivalent)
Full cover: Polycarbonate (resin color: DIC G-262 or equivalent)
Hood: SUS304 (paint color: DIC G-262 or equivalent and DIC PART2 2600 or equivalent)
Mounting brackets: SUS304

External dimensions

222 (W) x 180 (H) x 155 (D) (excluding mounting brackets and projections)

Weight

Approx. 4 kg

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