Optex SC-U1 Operation Manual
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Optex SC-U1 Operation Manual

Optex SC-U1 Operation Manual

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Universal Transmitter
SC-U1(E)
Thank you very much for purchasing the Universal Transmitter SC-U1.
All of this instruction manual must be read before operation of the Universal
Transmitter SC-U1 for safe and proper operation.
This instruction manual should be kept for future reference such as maintenance.
The instruction manual is also available on the following website.
Operation Manual
https://navi.optex.net/manual/05324

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Summary of Contents for Optex SC-U1

  • Page 1 Universal Transmitter SC-U1(E) Operation Manual Thank you very much for purchasing the Universal Transmitter SC-U1. All of this instruction manual must be read before operation of the Universal Transmitter SC-U1 for safe and proper operation. This instruction manual should be kept for future reference such as maintenance.
  • Page 2 Features (what this product can do) This Universal Transmitter SC-U1 is a signal converter that displays the measurement value of the sensor, converts the sensor signal into an analog signal and outputs it to an external recorder, or outputs a relay contact signal to an external control panel when the sensor signal exceeds the alarm trigger.
  • Page 3 Up to 4 more channels can Up to 2 more sensors can be installed. be installed. Configuration Sensor 4-20 mA output Relay output SC-U1 only 2 channels 2 channels 4 channels SC-U1 and 4 channels 4 channels 8 channels SC-U-EB The number of channels shown in the table is the maximum number that can be installed.
  • Page 4 WATER it  SC-U1(E) Operation Manual Thank you for purchasing Universal Transmitter SC-U1. All of this instruction manual must be read before operation of the Universal Transmitter SC-U1 for safe and proper operation. This instruction manual should be kept for future reference such as maintenance.

  • Page 5: Table Of Contents

    3 Operations on first boot/starting a task ............16 Startup flow ....................16 ◆ On first boot .................... 16 ◆ Unlock passcode ................... 18 4 Available Operations for SC-U1 ..............19 5 Setting Menu ..................20 5.1 Sensor Setting ................... 20 Sensor setting ....................
  • Page 6 5.4 Relay Setting....................38 Relay setting ....................40 ◆ Alarm output setting ................40 ● Trigger ....................42 ● Active Level ..................42 ● Hysteresis .................... 43 ● On Delay (alarm timer) ................ 44 ● Off Delay (cancel timer)............... 45 ◆...
  • Page 7 8 Maintenance Setting ................66 Maintenance ....................66 ◆ Measurement value hold ................ 67 ● Performing measurement value hold ..........67 ● Canceling measurement value hold ............ 68 ◆ Hold Timer ....................69 ◆ Maintenance Timer ................. 70 ● Setting maintenance timer ..............70 ●...

  • Page 8: For Safe Use

    Be sure to read this instruction manual in order to use the Universal Transmitter SC-U1 properly. • Please thoroughly read the "For Safe Use" before using the Universal Transmitter SC-U1 properly. • Because these precautions are related to failure or malfunction, observe the precautions for use without fail.
  • Page 9 Do not apply strong shock or To clean the Transmitter, excessive force to the Transmitter. gently wipe it with a clean, soft cloth containing diluted neutral detergent, and then wipe off moisture Paint thinner with a dry clean soft cloth. Do not wipe with an organic solvent.

  • Page 10: Component Name

    Component Name Front view Display Lock lever Operation panel (cover) Cover fixing screw hole / key hook Cable gland...

  • Page 11: Inside The Cover

    Inside the cover Terminal block for gateway connection Connector for SC-U-EB Power supply switch Terminal block (shown below) Power supply (shown below) Do not touch the terminal blocks and cables connected to the terminal blocks. Caution A cable may come off, resulting in abnormal operation. Terminal block Power supply Breaker...

  • Page 12: How To Open/Close Cover

    uHow to open/close cover To open the cover Slide up the lock lever. Pull the cover to open. To close the cover Slide up the lock lever while holding the Push and hold the cover, and make cover, and close the cover tightly without sure to slide down the lock lever to the a gap.

  • Page 13: Operation Button

    Operation button Name Description of Functions (1) HOME The indication returns from menu to measurement value display. Selection button UP/DOWN/ • UP/DOWN: LEFT/RIGHT Used to select an item in the setting menu. Or, used to increase/decrease a value of the selected digit in the numerical input.

  • Page 14: Display

    Display The display shows information of SC-U1 and installed sensors. If more than one sensor is installed, the display is divided to display a respective measurement value in each pane. (1) Status bar (6) Sensor (2) Sensor status channel number...

  • Page 15: Status Bar Details

    uStatus bar details (1) Date/time (2) Button lock status (3) Connection status (4) Information status (5) Relay output status Name Description of Functions Date/time Shows the current date and time when the gateway is connected. Button lock status Shows the passcode lock status of the operation buttons (“Passcode lock”...

  • Page 16: Operations On First Boot/Starting A Task

    Operations on first boot/starting a task Startup flow uOn first boot Refer to the "Universal Transmitter SC-U1 Installation Manual" to install the unit and perform wiring. Make sure that wiring has been properly Power switch done and turn on the power switch.
  • Page 17 After "WATER it" is displayed, the measurement value display is displayed. WATER it Secure the cover by attaching the supplied cover fixing screw to the hole in the cover as needed.

  • Page 18: Unlock Passcode

    uUnlock passcode If passcode lock is set, normal button operations are disabled after a certain period of no operation ("Passcode lock" P.52). The factory default setting is OFF for passcode lock. Pressing any button under the locked status shows the passcode input display. To unlock, use the following steps and enter the passcode.

  • Page 19: Available Operations For Sc-U1

    Available Operations for SC-U1 Sensor Setting Configure the sensor information and settings. Setting Reference: "5.1 Sensor Setting" P.20 GW setting Configure the basic settings of the gateway (optional) and the items you want to output to the gateway. Reference: "5.2 GW (Gateway) Setting"...

  • Page 20: Setting Menu

    Setting Menu 5.1 Sensor Setting Sensor setting Configure the sensor information and settings. Caution Pressing automatically retains the measurement value. Press The setting menu is displayed. Select [Sensor Setting] using , and press The sensor selection display is displayed. Select a sensor to set using and press Measurement Sensor...
  • Page 21 Item Description Refer to Display Item Set the measurement items to be displayed in the main, P.22 the second, and the third display fields ("Display" P.14). Main display 2nd display 3rd display Available display items depend on a sensor. Response Set the signal output response time to calculate the P.25 Time...

  • Page 22: Display Item

    uDisplay Item The measurement items can be set to display in the main, second, and third display fields ("Display" P.14). Available display items differ for a sensor. Refer to each sensor's instruction manual. When the display item is changed, the values set on “Send channel setting” P.28, “4-20 mA setting (4-20 mA output item setting)”...
  • Page 23 Select an item to display as the main display using , and press The display returns to the display item selection display. Select [2nd Dis.] using and press Available setting items for the 2nd display are displayed. Current setting item The 2nd display item is displayed on the lower left of the main display item.
  • Page 24 Select [3rd Dis.] using and press Available setting items for the 3rd display are displayed. Current setting item The 3rd display item is displayed on the lower right of the main display item. 3rd display Select an item to display as the 3rd display using , and press If [OFF] is selected, nothing is displayed.

  • Page 25: Response Time

    uResponse Time Set a signal output response time. A measurement value is calculated using moving average of the time period configured by the signal output response time. For example, if the sensor measures values every 5 seconds and the signal output response time is set to 50 seconds, which is 5 seconds × 10 times, the moving average of 10 times measurement is calculated and used as the measurement value.

  • Page 26: Gw (Gateway) Setting

    5.2 GW (Gateway) Setting When an optional gateway is connected, the basic gateway settings and send channel settings can be made from SC-U1. For detailed gateway settings, refer to gateway's instruction manual. Caution Pressing automatically retains the measurement value. Press The setting menu is displayed.

  • Page 27: Basic Setting

    Basic setting uTime Zone Set the time zone of the gateway. Select a time difference from UTC (Universal Time Coordinated). In the GW setting menu, select [Basic Setting] using , and press The basic GW setting menu is displayed. Select [Time Zone] using and press The current setting value is displayed.

  • Page 28: Send Channel Setting

    Send channel setting Set the Send Item and Send Interval to the Send Channel. Up to 12 channels can be configured. The Send Item is OFF at the factory default setting. When the item on “Display Item” P.22 is changed, the value of the send channel setting for which the display item has been set turns OFF.
  • Page 29 to select [Send Interval Setting] and press Enter the send interval. Select a digit by and value by and press The configured send item and interval for the channel are updated. Pressing returns to the send channel setting display. Setting range Factory default setting Send interval 1 to 1440 minutes 15 minutes...

  • Page 30: Ma Setting

    5.3 4-20 mA Setting Set the 4-20 mA signal output settings. The factory default setting is OFF for 4-20 mA signal output. Caution Pressing automatically retains the measurement value. Press The setting menu is displayed. Select [4-20 mA Setting] using and press The channel selection display is displayed.
  • Page 31 Item Description Refer to 4-20 mA 4-20 mA The following settings are available. Setting output item Output item selection: P.32 setting Select an item to output by 4-20 mA signal. The measurement item set on "Display Item" P.22 can be selected as the output item. Signal output range lower limit/signal output range P.33, upper limit:...

  • Page 32: Ma Setting (4-20 Ma Output Item Setting)

    4-20 mA setting (4-20 mA output item setting) uOutput Item Select Select an item to output by 4-20 mA signal. When the item on “Display Item” P.22 is changed, the output item of the 4-20 mA Caution setting channel for which the display item has been set turns OFF. Set again if necessary.

  • Page 33: Signal Output Range Lower Limit

    uSignal output range lower limit For the item selected in the "Output Item Select", set measurement value to output at lower limit (Lo, 4 mA). On the channel selection display, switch between pages using , select a channel to set using , and press The setting item selection menu is displayed and the Output item...

  • Page 34: Signal Output Range Upper Limit

    uSignal output range upper limit For the item selected in the "Output Item Select", set the measurement value to output at upper limit (Hi, 20 mA). On the channel selection display, switch between pages using , select a channel to set using , and press The setting item selection menu is displayed and the current setting of the selected channel is displayed.

  • Page 35: Ma Output Setting (Fine Adjustment For 4-20 Ma Output)

    4-20 mA output setting (fine adjustment for 4-20 mA output) Although this product is delivered after strict in-house inspection, the output value of this product may differ from the displayed value of the connected devices such as a recorder (data logger). In such a case, you can fine-adjust the lower limit 4 mA and upper limit 20 mA for the signal output (4-20 mA).

  • Page 36: Ma Fine Adjustment

    u20 mA Fine adjustment The upper limit of signal output, 20 mA, can be fine-tuned when there is a discrepancy between the output value of the product and the displayed value of a connected device such as a recorder (data logger). On the channel selection display, switch between pages using , select a...

  • Page 37: Ma Test Mode

    4-20 mA test mode A test output of 4, 12, and 20 mA can be performed to check the signal output status to a recorder (data logger). On the channel selection display, press to switch between pages. Output item Sensor channel to select [4-20 mA Test mode] and press The 4-20 mA test mode menu is displayed.

  • Page 38: Relay Setting

    5.4 Relay Setting Configure the relay output settings. The factory default setting is OFF for relay output. Caution Pressing automatically retains the measurement value. Press The setting menu is displayed. Select [Relay Setting] using and press The channel selection display is displayed. For each relay output channel, the current sensor channel, output item, trigger setting, and active level are displayed.
  • Page 39 Item Description Refer to Relay Setting The following settings are available. Alarm output setting: P.40 Configure various settings to output an alarm when the measurement value exceeds a fixed value. The measurement item set on "Display Item" P.22 can be selected as the output item of alarm output.

  • Page 40: Relay Setting

    Relay setting uAlarm output setting Set the alarm to be output when the measurement value exceeds a certain value. The measurement item set on "Display Item" P.22 can be selected as the output item of alarm output. When the item on “Display Item” P.22 is changed, the output item of the relay Caution setting channel for which the display item has been set turns OFF.
  • Page 41 If you selected an item for alarm output, set the following items additionally. Item Description Refer to Trigger For alarm output, set High Alarm (upper limit trigger) or P.42 Low Alarm (lower limit trigger). • High Alarm (upper limit trigger) Alarm condition is met when a measurement value exceeds the active level •...

  • Page 42: Trigger

    ●Trigger For alarm output, set High Alarm (upper limit trigger) or Low Alarm (lower limit trigger). In the setting item selection menu, select [Trigger] using , and press Select [High Alarm] or [Low Alarm] using , and press • High Alarm (upper limit trigger) Alarm condition is met when a measurement value exceeds the active level •...

  • Page 43: Hysteresis

    ●Hysteresis Set the hysteresis to cancel the alarm output. In the setting item selection menu, select [Hysteresis] using , and press Select a digit by and value by , and press • If the alarm trigger is set as High Alarm, set a value lower than the active level.

  • Page 44: On Delay (Alarm Timer)

    ●On Delay (alarm timer) Set a time period to output alarm after a measurement value exceeds the active level. Setting range Factory default setting On Delay 1 to 120 minutes In the setting item selection menu, select [On Delay] using and press Select a digit by and value by...

  • Page 45: Off Delay (Cancel Timer)

    ●Off Delay (cancel timer) Set a time period to cancel alarm output after a measurement value falls under (or exceeds) the alarm hysteresis. Setting range Factory default setting Off Delay 1 to 120 minutes In the setting item selection menu, select [Off Delay] using , and press Select a digit by...

  • Page 46: Maintenance Output Setting

    uMaintenance output setting Set a maintenance timer for any cycle ("Maintenance Timer" P.70) to notify the user when the set cycle has elapsed. This is used for notification of sensor maintenance, replacement of consumables, and overhaul timing. Notifications can be checked by the relay output and the cloud server (when connected to the GW). For more information about checking notifications on the cloud server, refer to the cloud server's help.

  • Page 47: Cleaning Output Setting

    uCleaning output setting Set the cleaning device to operate with relay output. To select the cleaning output as a relay output item, refer to the following sections before configuring the setting. • “Cleaning Interval (Relay)” P.76 Caution • “Cleaning Activation” P.77 •...

  • Page 48: Self Checking Output Setting

    uSelf Checking output setting Set an output when an error such as sensor failure and disconnection occurs. On the channel selection display, switch between pages using , select a channel to set using , and press The setting item selection menu is displayed and the current setting of the selected channel is displayed.

  • Page 49: Relay Test Mode

    Relay test mode Switch the relay ON/OFF and check the output status to the control panel. On the channel selection display, press to switch between pages. Select [Relay Test Mode], and press The relay test mode menu is displayed. Select a channel to set using and output ON/OFF using While [ON] is selected, relay output will continue from the selected channel.

  • Page 50: Main Unit Setting

    5.5 Main Unit Setting Set the SC-U1 main unit settings. Caution Pressing automatically retains the measurement value. Press The setting menu is displayed. Select [Main Unit Setting] using and press The main unit setting menu is displayed. Item Description Refer to...

  • Page 51: Date Setting

    Date setting Set the date and time (display type) displayed on the status bar when the gateway is connected. In the Main Unit Setting menu, select [Data Setting] using and press Select a date display type using and press There are three display types: •...

  • Page 52: Passcode Lock

    Passcode lock Disable normal button operations and set passcode lock to prevent unintended operations. To use passcode lock, configure the following three setting items. Item Description Refer to Passcode Set ON/OFF of the passcode lock. P.52 Lock The factory default setting is OFF for passcode lock. Passcode Set a passcode to unlock.

  • Page 53: Passcode

    uPasscode Set a passcode to unlock. The factory default setting of the passcode is "0000". In the Main Unit Setting menu, select [Passcode Lock] using and press Select [Passcode] using and press When passcode lock is OFF, the display is displayed as shown on the right, and passcode cannot be set.

  • Page 54: Auto Lock

    uAuto lock Set the time to automatically lock the button operations. After unlocking, the lock will be turned ON after the time set here has elapsed and the display returns to the measurement value display. Setting range Factory default setting Auto Lock 1 to 120 minutes 1 minute...

  • Page 55: Lcd Setting

    LCD setting Adjust display contrast and set the backlight setting. Item Description Refer to Contrast Set the contrast for the display unit. P.55 Backlight Set ON or OFF of the display backlight and the brightness when P.56 it is ON. Backlight Set the backlight ON time after button operations.

  • Page 56: Backlight Setting

    uBacklight setting Set ON or OFF of the display backlight and the brightness when it is ON. In the Main Unit Setting menu, select [LCD Setting] using and press Select [Backlight] using and press Select a setting using , and press The backlight dims in order of [High], [Mid], and [Low].

  • Page 57: Backlight Timer

    uBacklight Timer Set the backlight ON time. If no operation continues for the time set by the backlight timer, the backlight will be turned off automatically. Press any button while the backlight is off to turn on the backlight. Setting range Factory default setting Backlight Timer 1 to 60 minutes 1 minute...

  • Page 58: Language

    Select a display language using and press The display returns to the main unit setting menu. Information Display the information of the installed sensor, gateway and SC-U1. In the Main Unit Setting menu, select [Information] using , and press The information of the installed sensor, gateway and SC-U1 is displayed.

  • Page 59: Initialization (Restore To Factory Default Setting)

    • Selecting [NO] cancels initialization and returns to the main unit setting menu. During initialization a progress bar is displayed. When complete, SC-U1 restarts. Buzzer Setting Set the buzzer sound ON/OFF. In the Main Unit Setting menu, press to switch between pages, select [Buzzer...

  • Page 60: Calibration

    Calibration Calibration The sensor should be calibrated before use or after cleaning. • Pressing automatically retains the measurement value. Caution • Depending on the sensor to use, the displayed calibration items and operations may vary. For details, refer to the instruction manual for each sensor. Item Description Refer to...
  • Page 61 Select a sensor to calibrate using and press In this example, a channel connected to the turbidity checker is selected. The calibration menu is displayed. Measurement Sensor item model Sensor channel Select a calibration type using and press In this example, [ZERO Cal.] is selected. The calibration starts.

  • Page 62: Initialize Calibration Value

    uInitialize Calibration Value Initialize the calibration value. Press The sensor selection display is displayed. Select a sensor to initialize using and press The calibration menu is displayed. Measurement Sensor item model Sensor channel Select [Initialize Calibration Value] using , and press The calibration initialization menu is displayed.

  • Page 63: Adjustment

    Adjustment Adjustment The measurement values can be adjusted and displayed according to usage. In addition, the measurement values can be adjusted and displayed according to the environment where used. The following adjustment items can be used. • Pressing automatically retains the measurement value. •...
  • Page 64 Item Description Refer to 2-Point Current values of the two points can be displayed as any adjustment Sensor's Adjustment values, respectively. instruction Performing 2-point adjustment changes the offset and span based manual on the adjusted values. 1st point 2nd point Adjusted value Display value after 2-point...

  • Page 65: Example: Offset Adjustment Using Turbidity Checker

    uExample: Offset adjustment using turbidity checker Press The measurement item selection display is displayed. to select the item for offset adjustment and press The pages can be switched The adjustment menu is displayed. Measurement Sensor item model Sensor channel Select [Offset Adjustment] using , and press The correction items to display depends on a sensor.

  • Page 66: Maintenance Setting

    Maintenance Setting Maintenance Set the sensor maintenance settings. Pressing automatically retains the measurement value. Caution Press The sensor selection display is displayed. Select a sensor to set using and press By selecting [ALL], all of the installed sensors can be selected. Output Sensor item...

  • Page 67: Measurement Value Hold

    uMeasurement value hold ●Performing measurement value hold The last measurement value is retained (held). This is used for sensor maintenance and cleaning. On the sensor selection display, select a sensor to set using , and press By selecting [ALL], all of the connected sensors can be selected.

  • Page 68: Canceling Measurement Value Hold

    ●Canceling measurement value hold Cancel the measurement value hold of the sensor that is holding the measurement. On the sensor selection display, use to select the sensor for which you want to cancel measurement value hold, then press By selecting [ALL], all of the connected sensors can Output Sensor be selected.

  • Page 69: Hold Timer

    uHold Timer Set the time period to hold the measurement value. The setting range is shown below. Output Item Setting range Factory default setting HOLD Timer OFF 60 minutes 10 to 1440 minutes (by 10 minutes) On the sensor selection display, select a sensor to set using , and press Hold timer setting must be set for each sensor.

  • Page 70: Maintenance Timer

    uMaintenance Timer A maintenance timer can be set to an arbitrary cycle and notified when the set cycle has elapsed. This is used for notification of sensor maintenance, replacement of consumables, and overhaul timing. When the maintenance timer has expired, "MAINT" is displayed on the measurement value display of the sensor.
  • Page 71 Select [Timer Setting] using and press The cursor moves to the setting of days. Select a digit by and value by , and press • The factory default setting is [OFF]. Press display the maintenance timer input display. • When the value is 7, press to select [OFF].

  • Page 72: Canceling Maintenance Notification

    ●Canceling maintenance notification Cancel the maintenance notification. On the sensor selection display, select a sensor to set using , and press Maintenance timer setting must be set for each sensor. If [ALL] is selected, the setting is not available. Output Sensor item model...

  • Page 73: Cleaning

    Cleaning Cleaning Set the sensor cleaning settings. Pressing automatically retains the measurement value. Caution Press The sensor selection display is displayed. Select a sensor to set using and press The cleaning menu is displayed. By selecting [ALL], all of the installed sensors can be selected.

  • Page 74: Manual Cleaning

    Item Description Refer to Shown below are the settings to activate the cleaning device using a relay output ("Cleaning output setting" P.47). Cleaning Set the time interval between cleaning actions. P.76 Interval (Relay) Cleaning Set the time period for cleaning. P.77 Activation The last measurement value is retained (held) during cleaning.

  • Page 75: Cleaning Interval

    uCleaning Interval Set a time interval to activate the wiper. The setting range is shown below. Item Setting range Factory default setting Cleaning OFF (No cleaning) 30 minutes Interval 10 to 1440 minutes (by 10 minutes) On the sensor selection display, select a sensor to set using , and press The cleaning menu is displayed.

  • Page 76: Cleaning Interval (Relay)

    uCleaning Interval (Relay) Set the time interval between cleaning actions. The settings are to activate the cleaning device using a relay output ("Cleaning output setting" P.47). The setting range is shown below. Output Item Setting range Factory default setting Cleaning Interval (Relay) OFF (No cleaning) 30 minutes [Cleaning Interval-RLY]...

  • Page 77: Cleaning Activation

    Refer to "Cleaning output setting" P.47 to set [Cleaning] of the sensor for which cleaning interval is set in the output item of relay output. uCleaning Activation Set the time period for cleaning. The settings are to activate the cleaning device using a relay output ("Cleaning output setting" P.47).

  • Page 78: Post-Cleaning Standby

    uPost-cleaning Standby Set the standby time after cleaning. The settings are to activate the cleaning device using a relay output ("Cleaning output setting" P.47). The measurement value is retained (held) during post-cleaning standby. The setting range is shown below. Item Setting range Factory default setting Post-cleaning Standby...

  • Page 79: Firmware Update

    Firmware Update The firmware of the SC-U1 can be updated from a computer using the configuration software for Windows. The configuration software and firmware update files can be downloaded from the following. Also for instructions on updating the firmware, refer to the following website.

  • Page 80: Troubleshooting

    Troubleshooting Error Display This product has a display function to notify of operation errors and problems. The display depends on the error details. For details of error codes, refer to "Error codes" P.82. Error display position ● Example of display on main display The main display shows the error code.
  • Page 81 ● Example of display on calibration result display E4100 It shows an error code on the calibration result display after calibration is completed. It is displayed when sensor calibration failed. ● Example of display when information status is lit The information status on the status bar is lit. Error codes can be viewed as in “Information”...

  • Page 82: Error Codes

    E2000 SC-U1 was operated while The sensor is no longer accepting input Sensor pro- the sensor was being from the SC-U1. The display returns to the cessing/sensor processed. measurement value after a few seconds. failure The sensor cable is broken. Make sure that the cable is not damaged.

  • Page 83: M5Xx Error Code List

    uM5xx error code list M5xx error codes are a combination of error codes (1) and (2). 0 (Zero) if no error code is found. M5x x Error code (1) Error code (2) Error codes and their causes and actions are described below. Cause Maintenance Calibration...

  • Page 84: When In Trouble

    When in trouble Error details Cause Action Nothing is A power cable is not Check the internal wiring and be sure to wire displayed on wired. correctly. the display. The power is off. Open the cover and turn on the power switch. The breaker is engaged.
  • Page 85 Error details Cause Action Connector for SC-U-EB Turn off power, check the connector, and refer to measurement is not properly connected. "Sensor Input/Output Expansion Board SC-U-EB value is not Instruction Manual", "4. Installation" to wire the displayed. cable properly. A computer is connected. Measurement and output cannot be performed while the product is connected to a computer.
  • Page 86 Error details Cause Action Data cannot be The send channel Output to the gateway is not available unless sent from the setting is not complete. transmission item to the transmission channel as gateway. well as the transmission interval have been set. Refer to "Send channel setting"...
  • Page 87 Error details Cause Action Relay output is The relay setting is not Refer to "5.4 Relay Setting" P.38 to configure the not available. complete. setting. Connector for SC-U-EB Turn off power, check the connector, and refer to is not properly connected. "Sensor Input/Output Expansion Board SC-U-EB Instruction Manual", "4.
  • Page 88 Error details Cause Action The maintenance Maintenance output has The notification by the maintenance timer is timer output is not been assigned to available if the maintenance output has been set not made from the relay output. using relay output. Refer to "Maintenance output the relay.

  • Page 89: Maintenance

    • Terminal block screws are not rusted. Long-Term Storage If the SC-U1 is not used over a prolonged period, keep it as follows: 1. Turn OFF the power switch and disconnect the power cable. 2. Store the SC-U1 away from direct sunlight.

  • Page 90: Specifications

    Specifications Name Universal Transmitter Model SC-U1(E) Power supply 100-240 VAC ±10% 50/60 Hz voltage Power 1 sensor installed: 20 VA max. (normal), up to 35 VA consumption 2 sensors installed: 25 VA max. (normal), up to 40 VA 4 sensors installed (using SC-U-EB): 30 VA max. (normal),...

  • Page 91: External Dimensions

    External Dimensions Cover fixing screw hole / key hook: Ø7 (Unit: mm)
  • Page 92 Whole document of the DOC can be referenced in the following website ; www.optex.net OPTEX CO., LTD. 5-8-12, Ogoto, Otsu, Shiga, 520-0101 Japan T el.+81-77-579-8680 Fax.+81-77-579-8199 https://www.optex.co.jp/e/products/environmental-sensor/ 2022.08 59-2906-1...

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