CDTX-90-1 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:
uS >
Select from the following options: ∝S, mS, kΩ, MΩ, PPM
PPM Factor:
2.00>
If the Units selection is PPM, you can set the ratio of Total Dissolved Solids to ∝S. See page 15 for additional information. The TDS factor can only be set in PPM.
Set:
Temperature >
Adjust the temperature of the system based on an accurate external reference.
Set: |
| For use with STANDARD sensors: Perform this |
Conductivity | > | results. Not required for CUSTOM sensors except for periodic system accuracy confirmation. |
Enter all zeroes to restore factory calibration to TEMP and COND settings. | ||
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Loop Source: |
| Select the input source to be associated with the current loop output: Conductivity or |
Cond | > | Temperature. |
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Loop Range: uS |
| 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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Output Source: |
| Select the source for the Open Collector output: Conductivity or Temperature |
Cond | > |
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Output Mode: |
| Select the mode of operation for the Open Collector output. |
Low | > | Options available are High, Low or proportional Pulse. |
The signal may be disabled (Off) if not in use. | ||
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Output Setpnt: |
| In Low or High Mode, this Open Collector output will be activated when the process reaches |
10.0000 uS | > | this value. Be sure to modify this setting if you change the Cond. Units. |
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Output Hys: |
| The Open Collector output will be deactivated at Setpoint ± Hysteresis, depending on High or |
0.5000 uS | > | Low Setpoint selection. (See details in section 3.3.) |
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Output Rng: uS |
| In Pulse mode, set the process values where the proportional pulse will start and where it will |
10.0000 → 40.0000 | > | reach the maximum rate. Be sure to modify this setting if you change the Cond. Units. |
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Output PlsRate: |
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120 Pulses/Min | > |
In Pulse mode, set the maximum rate for the proportional Pulse output. The
Last CAL:
06-30-01 >
Use this “note pad” to record important dates, such as annual recertification or scheduled maintenance.
page 10
