RC-51H User Manual

Product Overview

This temperature and humidity data logger is primarily used in fields such as medicine, food, life science, flowers, breeding industry, ice chests, containers, shady cabinets, medical cabinets, refrigerators, laboratories, and greenhouses. The RC-51H is plug-and-play, allowing users to generate a data report directly without needing to install data management software. The data can still be accessed even if the battery runs out.

Structure Description

The RC-51H data logger consists of the following components:

• LCD Screen: Displays information such as battery status (A), Mean Kinetic Temperature (B), recording start indicator (C), stop recording indicator (D), cyclic recording indicator (E), computer connection indicator (F), temperature unit (°C/°F) (G), humidity unit (H), progress percentage or timing indicator (I), average value indicator (J), number of records (K), and combined indicator (L).
• Sensor: The integrated sensor for temperature and humidity readings.
• USB Port: Located at the top for connecting to a computer.
• Transparent Cap: Protects the USB port and needs to be removed for connection.
• Seal Ring: Ensures proper sealing.
• Button & Bi-color indicator: A button for interaction and a bi-color LED indicator (red and green) for status feedback.

Product Label Information: Typically includes Model (RC-51H), Version (e.g., 1.0), Serial Number (S/N), Barcode, Firmware Version, and Certification information (e.g., EN 12830-S, T, C, D, I, CE, RoHS).

Parameter Instruction

Users can reconfigure parameters using the data management software. Note that reconfiguring will clear existing data.

• Alarm Threshold: Supports 3 upper temperature limits, 2 lower temperature limits, 1 upper humidity limit, and 1 lower humidity limit.
• Alarm Zone: The range outside the defined alarm threshold.
• Alarm Type: Can be set to 'Single' (records the first instance of an over-temperature event) or 'Cumulative' (records the total time spent outside the threshold).
• Alarm Delay: The logger will not alarm immediately when within the alarm zone; it waits for the specified delay time to elapse before triggering an alarm.
• MRT (Mean Kinetic Temperature): An evaluation method for temperature fluctuation effects on stored goods.

Operating Instructions

The data logger can be started and stopped via button press or software. For detailed operations, refer to the menu and status indicators.

Logger Status Indicators:

Starting and Stopping the Logger:

Viewing Data: When the data logger is connected to a computer's USB port, a data report is automatically generated. The red and green indicators flash alternately during report creation. The LCD shows the PDF report creation progress. Once created, both indicators light up simultaneously, and the data report can be viewed. Document creation takes up to 4 minutes.

Steps to View Data:

1. Rotate the transparent cap in the direction of the arrow [arrow-right] and remove it.
2. Insert the data logger into the computer's USB port.
3. View the data report (e.g., XXX.pdf).

Technical Specifications

¹ Depending on optimal storage conditions (±15°C to +23°C / 45% to 75% rH).

Report Description

The data logger generates an automatic PDF report upon connection to a computer. The report includes various sections detailing the logged data and device configuration.

Report Sections:

• File Created At: Timestamp of report generation.
• Data Log: Contains device information, trip information, and configuration details.
• Device Information: Serial Number, Probe Type, Version.
• Trip Information: Description of usage.
• Configuration Information: Mode, Log Interval, UTC offset, Alarm Zone settings (Allow Time, Alarm Type, Total Time, Violations, Ideal Region).
• Record Data Curve: A graph showing temperature (black line) and humidity (deep green line) over time.
• Data Details: A table listing menu items (e.g., Countdown start, Current temperature, Current humidity, Points of records, Average temperature, Average humidity, Max temperature, Max humidity, Min temperature, Min humidity) with their corresponding values.

Indicator Status Descriptions in Report:

• A (File Created At): Timestamp.
• B (Data Log): Overall data log section.
• C (Stop mode that has been set): Indicates the configured stop mode.
• D (Configuration Information): Details of logger settings.
• E (Alarm status of the temperature alarm zone): Shows if the temperature is within or outside the alarm zone.
• F (Total times of exceeding the temperature alarm threshold): Count of temperature alarm events.
• G (Alarm delay and alarm type): Configuration of alarm delay and type.
• H (Alarm threshold and temperature alarm zones): Defined alarm limits.
• I (Basic information): General device information.
• J (Vertical coordinate unit of the data graph): Unit for the Y-axis of the graph.
• K (Alarm threshold line): Visual representation of the alarm limit on the graph.
• L (Alarm threshold): The specific value for the alarm threshold.
• M (Record data curve): The graphical representation of logged data.
• N (Document name): The name of the generated report file.
• O (Record time range in the current page): Time span covered by the current view of the data.
• P (Records when date changes): Data points logged at date changes.
• Q (Records when the date is not changed): Data points logged within the same date.

Combined Indicators and Other Status:

• Display:
• Rate of progress (record stop time): Shows the progress of data logging or report generation.
• Document creation time: Time taken for report creation.
• Actual stop mode: The mode in which the logger was stopped.
• Status:
• No alarm: Indicates no alarm condition is active.
• Already alarmed: Indicates a past or current alarm condition.
• Minimum value: Displays the minimum recorded value.
• Maximum value: Displays the maximum recorded value.
• Clear data: Indicates data has been cleared.
• In USB communication: Shows the logger is communicating via USB. The '2' indicator should be in a state of blinking.

Note: The data shown in the report is for explanation purposes; refer to the actual document for specific information.

Menu and Status Indicator

Description of the indicator flashing status:

Description of the menus:

Description of the combined indicators and other status:

Note: The data shown in the report is for explanation purposes; refer to the actual document for specific information.

What's Included

• 1 temperature and humidity data logger
• 1 ER14250 battery
• 1 user manual

Replace Battery

Follow these steps to replace the battery:

1. Press the bayonet in the direction of the arrow [arrow-right] and remove the battery cover.
2. Place a new battery.
3. Install the battery cover in the direction of the arrow [arrow-left].