What to do if the YOKOGAWA Transmitter measurement is out of range?
If the measurement is out of range (-2 to 16 pH) on your YOKOGAWA Transmitter, the issue might be due to disconnected or wrongly connected sensors, or the sensor(s) might be defective. You should check the cabling and replace the sensor(s).
Why is the asymmetry potential too high on my YOKOGAWA PH202G (S)?
If the asymmetry potential is too high on your YOKOGAWA Transmitter, and it exceeds the limits set in service code 22, it could be due to aged or polluted sensors or a mistake during calibration. You should check the buffer solution, recalibrate at pH7, or replace the sensor.
How to fix slope outside limits on YOKOGAWA Transmitter?
If the slope (sensitivity) is outside the limits on your YOKOGAWA Transmitter, as defined in service code 23, it could be due to an aged measuring sensor or poor insulation at the connector. Replace the measuring sensor, or replace or dry the cables.
What causes low impedance of input 1 on YOKOGAWA Transmitter?
If the impedance of input 1 is too low on your YOKOGAWA Transmitter, as defined in service code 03, it could be caused by a broken measuring sensor or damaged or damp connections. Replace the measuring sensor, or replace or dry the cable.
Why is the impedance of input 2 too low on my YOKOGAWA PH202G (S)?
If the impedance of input 2 is too low on your YOKOGAWA Transmitter, as defined in service code 04, it may be due to a broken reference sensor or damaged connections. Replace the reference sensor or the cables.
What to do if zeropoint is outside limits in YOKOGAWA Transmitter?
If the zeropoint is outside the limits on your YOKOGAWA Transmitter, it may be due to aged or polluted sensors, or a mistake in calibration. Check the buffer solution, recalibrate at pH7, or replace the sensor.
Why measurement failed to stabilize during calibration of YOKOGAWA PH202G (S) Transmitter?
If the measurement failed to stabilize during the calibration of your YOKOGAWA Transmitter, it may be because the sensors are fouled or too slow (aged sensor). Clean the sensors or replace them.
How to troubleshoot high impedance of input 1 on YOKOGAWA PH202G (S) Transmitter?
If the impedance of input 1 is too high on your YOKOGAWA Transmitter, as defined in service code 03, it could be due to a disconnected measuring sensor, sensors not immersed in the process liquid, or a disconnected liquid earth. Check the connections and the process.
What causes high impedance of input 2 on YOKOGAWA Transmitter?
If the impedance of input 2 is too high on your YOKOGAWA Transmitter, as defined in service code 04, it could be caused by a fouled reference sensor, disconnected liquid earth, or insufficient electrolyte. Clean or replace the sensor, check the sensor immersion, and check the electrolyte reservoir.
Why is the temperature sensor open on my YOKOGAWA PH202G (S) Transmitter?
If the temperature sensor is open and reads > 1400C (or
General| Brand | YOKOGAWA |
|---|---|
| Model | PH202G (S) |
| Category | Transmitter |
| Language | English |
Details on general specs, input ranges, span, and output signal characteristics.
Specs for temp compensation, calibration, serial communication, and display.
Linearity, accuracy, ambient temperature, humidity, and housing details.
Data protection, watchdog timer, operation protection, and communication specs.
Details on regulatory compliance and various safety certifications (ATEX, CSA, FM).
Table listing model codes and their corresponding options and descriptions.
Diagrams and data for intrinsically safe installations in hazardous areas per CENELEC.
Diagrams and electrical data for FM intrinsic safety (FISCO concept).
Diagrams and electrical data for CSA intrinsic safety compliance.
Diagrams and electrical data for CSA intrinsic safety (entity concept).
Diagrams and electrical data for FM intrinsic safety compliance.
Diagrams and electrical data for FM non-incendive installations.
Diagrams and electrical data for FM intrinsic safety (FISCO concept).
Diagrams and electrical data for FM intrinsic safety (Entity concept).
Diagrams and electrical data for FM non-incendive (Entity concept).
Criteria for choosing an installation location and available mounting options.
Details on cable types, terminal specifications, and gland usage for wiring.
Precautions for sensor wiring, including general and hazardous environment guidelines.
Steps for wiring the power supply, including safety precautions.
Detailed steps for connecting power and turning on the instrument.
To Next Page