CDTX-90-2 Calibrate Menu
Display |
| Description | |
(Factory settings shown) | |||
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Cell Constant: |
| Select CUSTOM only if you are connecting a certified conductivity sensor. Select | |
Standard | > | STANDARD for all other systems. | |
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Cell: Standard
1 >
For STANDARD sensors: Select from these options: 0.01, 0.1, 1.0, 10.0 or 20.0.
Cell: Custom
1.0000 >
For CUSTOM sensors: Enter the precise cell constant from the certificate provided with your sensor, or from the information label on the sensor.
Cond Units:
∝S >
Select from these options: ∝S, mS, kΩ, MΩ, PPM
PPM Factor:
2.00>
If the Units selection is PPM, set the ratio of Total Dissolved Solids to ∝S. The maximum allowable is 3 ∝S = 1 PPM. The TDS factor can only be set in PPM.
Set:
Temperature >
Adjust the temperature of the system based on an accurate external reference.
Set: |
| When using a h STANDARD sensor perform this |
Conductivity | > | accuracy. Not required for CUSTOM sensors except for periodic calibration checks. |
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Loop Source: |
| Select the input (Conductivity or Temperature) source to be associated with the current |
Cond | > | loop output: |
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Loop Range: ∝S |
| Select the minimum and maximum values for the current loop output. |
0.0000 → 100.000 | > | Be sure to modify this setting if you change the Cond. Units. |
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Relay1 Source: |
| Select the source (Conductivity or Temperature) for this relay output: |
Cond | > |
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Relay1 Mode: |
| Select the mode of operation for the relay. |
Low | > | Options available are High, Low or proportional Pulse. |
The relay may be disabled (Off) if not in use. | ||
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Relay1 Setpnt: |
| In Low or High Mode, the relay will be activated when the process reaches this value. Be |
10.0000 ∝S | > | sure to modify this setting if you change the Cond. Units. |
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Relay1 Hys: ∝S |
| The relay will be deactivated at Setpoint ± Hysteresis, depending on High or Low Setpoint |
0.5000 | > | selection. |
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Relay1 Rng: ∝S |
| In Pulse mode, set the process values where the proportional pulse will start and where it |
10.0000 → 40.0000 | > | will reach the maximum rate. Be sure to modify this setting if you change the Cond. Units. |
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Relay1 PlsRate: |
| In Pulse mode, set the maximum rate for the proportional Pulse. The transmitter will |
120 Pulses/Min | > | accept any value from 0 to 400. |
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Last CAL: |
| Use this “note pad” to record important dates, such as annual recertification or scheduled |
> | maintenance. | |
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page 12
