Black & Decker DCM200C Guía de instalación descargar pdf (Pagina 20)

DCM 200 Installation

Page 20

Calibrations

3.1. Single Point Calibrations, One-Point or Standardization

The pH and Temperature inputs A and C, have single point (Offset only) calibrations.

Input B is the ORP input and should never need field calibration. Calibration of contact set inputs “E and

F” is blocked.

3.2. Two Point Calibration

Two point calibration is limited to pH sensors.

Sensor OFFSET is adjusted so the sensor value matches the user’s calibration value.

Sensor GAIN is adjusted so that the sensor value matches the user’s calibration value. This is the

measured response for each engineering unit, and normally does not change for pH and Temperature

sensors used in aquatic applications.

The value of a sensor = Measured Level (mV) x GAIN + OFFSET.

This value may be modified by sensor compensation.

Compensation (Temperature, Rate-Volume, Corrosion Rate…) is applied after GAIN & OFFSET.

During calibration, users have the option to Reset to Factory, which resets the sensor GAIN & OFFSET

to default values.

If the calibration OFFSET or GAIN is outside fault limits, users are offered the option to OVERRIDE.

OFFSET or GAIN outside of the fault limits (typically indicates a sensor, cabling or driver fault).

OVEWRRIDE consists of submitting or pressing enter an additional time.

Users also have the option to manually enter OFFSET and GAIN by selecting Sensor then Configure in

the Browser interface. See the DCM200 Browser Manual for more information.

WATER METER F:

When Input F is configured as a volume (flow) meter, the user calibration value is Volume/contact for

contact head meters and ‘K’ factor (Pulses per unit volume [gallon]) for turbine and paddlewheel meters.

Reset to Factory

Newly installed firmware & reconfigured water meters are Reset to Factory Default calibrations when

controller Power is first turned on after install.

User selected Reset to Factory loads the GAIN, OFFSET set from the following table.

Sensor Type

1.15.

Type

Factory

Gain

Factory

Offset

Fault

MAX

Fault

MIN

Calculated Value

100 0 None None

Manual Entry

1 0 0 0

ORP

0.017

-1

OFFSET

Temperature

Temp OFFSET OFFSET

1 2 ... 15 16 17 18 19 20 21 22 23 24 25 ... 33 34

Comentarios a estos manuales

Sin comentarios

Black & Decker DCM200C Guía de instalación Pagina 20

Comentarios a estos manuales

Relacionado con productos y manuales para Cafeteras Black & Decker DCM200C