Purge with clean air if needed. Temperature Sensor Fault Temperature sensor is out of range Return to factory. Wrong Sensor Type Wrong sensor type is installed Sensor type must match configuration.
Change sensor or configuration. Lamp Fault Open or shorted lamp Replace lamp. Alignment Fault Open path alignment problem Align the device as specified in the instruction manual.
Blocked Optic Fault Optical path is blocked Locate and remove obstruction from the optical path. Cal Line Active Cal line is active at start-up Ensure that the Cal line wiring is not shorted and the switch is open. Low Cal Line Cal line is shorted.
Check wiring. Sensor Fault Self-detected fault with the sensor Check sensor wiring. General Fault Unspecified fault Verify correct power wiring and supply voltage. Consult the factory. High Fault Detector output is higher than specified limit Verify correct sensor type and calibration.
Low Fault Detector output is lower than specified limit Verify correct sensor type and calibration. Dirty Optics Detector optics are dirty Perform the cleaning procedure as described in the detector manual, then perform calibration. Start Cal Fault Calibration fault Verify correct sensor type and calibrate. Recycle power. Low Voltage Power supply voltage outside of limits Check power supply voltage.
Temp Fault Temperature sensor fault Return to factory. Software Fault Internal software fault Return to factory. Gas Under Range Sensor signal has drifted negative Device may have been calibrated with background gas present. Sensor Mismatch Wrong sensor type is installed Sensor type must match configuration.
Comm Fault Communication fault Check detector wiring and power supply. Ripple cannot exceed 0. Heater on: 4 watts additional. Lon communication — Digital communication, transformer isolated Apply calibration gas to the sensor. The actual effect of the K-Factor can be observed as the span portion of the calibration is completed. For example, suppose a K-Factor of 0.
It will then apply the K-Factor, and the displayed value will change to The UDDCU automatically exits the Calibrate mode and returns to normal operating mode upon completion of a successful calibration. This value can be used for determining the approximate sensor life remaining.
For additional information regarding K-Factors, including a list of K-Factors for many common gases, refer to Technical Bulletin number A typical new sensor reads between 45 and 55 mV. Menu Help Status menus only allow the user to view the data. The Setup menus allow the user to both view and edit the data. XX MA X. XX XX. Calibration is performed at the Model using the following procedure.
LED turns on. Connect a digital voltmeter to the transmitter test jacks. Set the meter range to 2 Vdc. Adjust the ZERO potentiometer to read 0. See Note 3 below. Adjust the 4 mA potentiometer to read 0. When the output has stabilized, adjust the SPAN potentiometer for a reading of 0. Sensitivity test. The meter must read greater than 0. See Note 4 below.
Remove the calibration gas. When the meter reads 0. The LED turns off. The calibration is complete. Replace the junction box cover. The voltmeter must be suitable for use in a hazardous location. If the possibility of background gases exists, purge the sensor with clean air prior to the zero adjustment to assure accurate calibration.
Sensor replacement is recommended when the sensitivity reading is less than 15 millivolts. See Figure 1. Figure 2—Transient Suppression for inductive Loads During normal operation, the LCD continuously displays the detected gas level, gas type, and units of measurement. Installation must be done by a properly trained person. Page 8: Installation Table 2. If the UD10 faceplate is not correctly oriented, it can be rotated at 90 degree increments by pulling the electronic module from the four mounting posts that secure it to the junction box and repositioning it as desired.
Page 9: Wiring Appendix for additional information. Maximum cable length from UD10 to sensor internal connection to terminals P and P Isolated Sourcing Output. Page 12 Notes: Resistor may be external if voltage input card is used. Page 13 Notes: Resistor may be external if voltage input card is used.
Once the chosen input is selected, use the PIR The UD10 then commands the detector to output 20 mA and subsequently calibrates its own input. Page 16 HART enabled time and date stamp. Supply Voltage Verify proper wiring to the device and correct 24 volt power supply voltage too low Fault voltage output from the power supply.
Recycle power. K-1 Installation Notes. K-1 Orientation. K-4 Calibration. K-4 Menu Structure. Important Notes. N-1 Wiring. N-1 Installation. N-2 Orientation. N-2 Calibration. N-3 Menu Structure. O-1 Menu Structure.
This product can be used with a variety of Det-Tronics gas detectors to provide early warning of the presence of a toxic or explosive gas mixture. Proper device installation, operation, and maintenance is required to ensure safe and effective operation. If this equipment is used in a manner not specified in this manual, safety protection may be impaired.
When furnished with the CGS interface board, the device can be used only with a CGS sensor for detection of combustible gas. Gas concentration and unit of measurement are displayed on a digital display. All electronics are enclosed in an explosion-proof aluminum or stainless steel housing. The display unit is used with a single detector that may be either coupled directly to the UD10, or remotely located using a sensor termination box.
The UD10 features non-intrusive calibration. The unit provides display, output and control capabilities for the gas detector. Low alarm must be less than or equal to the high alarm. Changing the Measurement Range will reset all alarm and Cal Gas values to the default settings for the selected range.
Alarm relays are selectable for either normally energized or normally de-energized coils, with selectable latching or non-latching contacts. Fault relay is normally energized with no faults.
Caution Handle magnets with care! Modern magnet materials are extremely strong magnetically and somewhat weak mechanically. Injury is possible to personnel, and magnets themselves can easily get damaged if allowed to snap towards each other, or if nearby metal objects are allowed to be attracted to the magnets.
See Figure 1 for switch locations. This will display the Main Menu. These switches are used for device configuration, checking status and event logs, and performing calibration.
The switches are labeled as follows: The actual menu structure varies depending upon the device that is connected to the UD Menus for the various devices can be found in the corresponding Appendix in this manual. Relays The display unit has 4 output relays — high alarm, low alarm, auxiliary alarm, and fault. During normal operation, the fault relay is energized. If the application requires that AC powered equipment be controlled by the transmitter, the use of externally located relays is recommended.
See Addendum number for details. External relays, solenoids, motors, or other devices that can cause inductive transients should be transient suppressed. Place a diode across the coil for DC devices.
See Figure 2. See Figure 1. B Figure 2—Transient Suppression for Inductive Loads During normal operation, the LCD continuously displays the detected gas level, gas type, and units of measurement. The real time clock can also be displayed if desired.
This mode ensures that the current level is always high enough to support HART communication and must be selected when using HART communication for fault diagnostics. This mode can be used with 4. However, because of the many variations in wiring codes and regulations, total compliance to these ordinances cannot be guaranteed. Be certain that all wiring complies with the NEC as well as all local codes.
If in doubt, consult the authority having jurisdiction before wiring the system. Installation must be done by a properly trained person. However, it must be properly installed and used only under the conditions specified within this manual and the specific approval certificates. Any device modification, improper installation, or use in a faulty or incomplete configuration will render warranty and product certifications invalid. See Figure 3.
Service or repair should never be attempted by the user. Device repair should be performed only by the manufacturer. The UD10 can display the detector event and calibration logs if available.
Detector calibration and event logs can also be read from the detector HART interface where available. A dedicated earth ground terminal is provided on the UD Identification of the most likely leak sources and leak accumulation areas is typically the first step in identifying the best detector mounting locations.
This information should be used to identify optimum detector installation points. If the vapor of interest is lighter than air, place the detector above the potential gas leak. Place the detector close to the floor for gases that are heavier than air.
Note that air currents may cause a gas that is slightly heavier than air to rise under some conditions. Be the first to write your review! IndustrialZone is a supplier of industrial equipment and parts and is not associated with any of the original equipment manufacturer listed on this website. We are fully operational and here to serve you! Due to inflation, supply chain disruptions and changes in the global business environment, please be advised that price and delivery is subject to change at the time you place your order.
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