Elitech RC-51H User Manual

Product Overview

The Elitech RC-51H is a multi-use temperature and humidity data logger designed for applications in medicine, food, life science, flowers, breeding industry, ice chests, containers, shady cabinets, medical cabinets, refrigerators, laboratories, and greenhouses. It features plug-and-play functionality, allowing direct data report generation without requiring separate data management software. Data remains accessible even if the battery is depleted.

Structure Description

The RC-51H data logger features an LCD screen for displaying readings and status. The device body houses the sensor and a button with a bi-color indicator (red and green). A transparent cap protects the USB port, and a seal ring ensures device integrity. The product label, containing model, firmware version, certification information, barcode, and serial number, is also present.

LCD Screen Indicators:

• A: Battery indicator or Progress percentage
• B: Mean kinetic temperature
• C: Start recording indicator
• D: Stop recording indicator
• E: Cyclic recording indicator
• F: Computer connection indicator
• G: Temperature unit (°C/°F)
• H: Humidity unit
• I: Timing indicator
• J: Average value indicator
• K: Number of records
• L: Combined indicator

Product Label Details:

• a: Model
• b: Firmware version
• c: Certification information
• d: Barcode
• e: Serial number

Parameter Instruction

Users can reconfigure parameters via data management software. This process will clear original parameters and 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 beyond the alarm threshold.
• Alarm type:
  • Single: Records the duration of continuous over-temperature events.
  • Cumulative: Records the total time of all over-temperature events.
• Alarm delay: The logger waits for a specified delay time before alarming when the temperature exceeds the alarm zone.
• MRT (Mean kinetic temperature): An evaluation method assessing the impact of temperature fluctuations on stored goods.

Operating Instructions

The data logger can be stopped using the data management software. Users can also stop the logger via the device button.

Startup Modes:

• Instant-on: Disconnect to USB. LCD Indicator: 'REC' (Green indicator flashes 5 times).
• Timing start: Disconnect to USB. LCD Indicator: 'SEC' (Green indicator flashes 5 times).
• Manual start: Press and hold button for 5s. LCD Indicator: 'SEC' (Green indicator flashes 5 times).
• Manual start (delayed): Press and hold button for 5s. LCD Indicator: 'SEC' (Green indicator flashes 5 times).

Stop Modes:

• Manual stop: Press and hold button for 5s. LCD Indicator: 'REC' (Red indicator flashes 5 times).
• Stop (disable manual stop): Reaches Maximum record capacity. LCD Indicator: 'REC' (Red indicator flashes 5 times).
• Stop (Enable manual stop): Reaches Maximum record capacity or press and hold the button for 5s. LCD Indicator: 'REC' (Red indicator flashes 5 times).

Viewing Data:

Press and release the button to view data. Refer to the menu and status indicator for details.

Menu and Status Indicator

Indicator Flashing Status:

• Not started: Red and green indicators flash 2 times simultaneously.
• Start delay: Red and green indicators flash once simultaneously.
• Timing: Green indicator flashes once.
• Started-normal: Green indicator flashes once per minute automatically.
• Started-alarm: Red indicator flashes once.
• Stopped-normal: Green indicator flashes 2 times.
• Stopped-alarm: Red indicator flashes 2 times.

Menu Descriptions:

Combined Indicators and Other Status:

• Display: No alarm (group) -> Description: ✔️
• Display: Already alarmed (group) -> Description: ?
• Display: Minimum value (group) -> Description: ⬇️
• Display: Maximum value (group) -> Description: ⬆️
• Display: Clear data -> Description: 056
• Display: In USB communication -> Description: ? (Indicator should be blinking)

Technical Specifications

Report Generation

Upon connecting the data logger to a computer's USB port, a data report is automatically generated. During creation, the red and green indicators flash alternately, and the LCD screen displays the progress. Once creation is complete, both indicators light up simultaneously, allowing users to access the data report. Document creation typically takes no more than 4 minutes.

Report Content Description:

• Data Log: A graphical representation showing temperature (black line) and humidity (deep green line) over time, with alarm zones indicated by threshold lines.
• Device Information: Includes serial number, probe type, and trip information.
• Configuration Information: Displays startup mode, log interval, alarm zone, allow time, alarm type, total time, and violations.

Report Legend (A-P):

• A: File Created At
• B: Data Log
• C: Device Information
• D: Configuration Information
• E: Alarm threshold line (corresponding to item L)
• F: Total times of exceeding the temperature alarm threshold
• G: Alarm delay and alarm type
• H: Alarm threshold and temperature alarm zones
• I: Vertical coordinate unit of the data graph
• J: Description of the combined indicators and other status
• K: Alarm status of the temperature alarm zone
• L: Alarm threshold
• M: Record data curve (black indicates temperature, deep green indicates humidity)
• N: Document name (serial number & description of usage ID)
• O: Record time range in the current page (group)
• P: Records when date changes (date & temperature and humidity)
• Q: Records when the date is not changed (time & temperature and humidity)

What's Included

• 1 x Temperature and humidity data logger
• 1 x ER14250 battery
• 1 x User manual

Replace Battery

Follow these steps to replace the battery:

1. Rotate the transparent cap in the direction of the arrow ➡️ and remove the battery cover.
2. Place a new battery.
3. Install the battery cover in the direction of the arrow ➡️.