OHAUS Guardian 7000 Series Instruction Manual
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OHAUS Guardian 7000 Series Instruction Manual

Hotplate-stirrer
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OHAUS
Guardian 7000 Series
Hotplate-Stirrer, e-G71 HSRDM
Hotplate-Stirrer, e-G71 HS07C
Hotplate-Stirrer, e-G71 HS1 0C
Instruction Manual
Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com

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  • Page 1 OHAUS Guardian 7000 Series Hotplate-Stirrer, e-G71 HSRDM Hotplate-Stirrer, e-G71 HS07C Hotplate-Stirrer, e-G71 HS1 0C Instruction Manual Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com...

  • Page 3: Table Of Contents

    Guardian 7000 Series EN-1 Table of Contents INTRODUCTION ..............................2 1.1. Safety Information ............................2 1.2. Intended Use ............................. 2 1.3. Package Contents ............................. 3 1.4. Installation ..............................3 1.5. Overview ..............................4 1.5.1 Dimensions ............................4 1.5.2 Device Setup ............................7 1.5.3...

  • Page 4: Introduction

    Alternating Current � 1.2. Intended Use The Ohaus Hotplate-Stirrers are intended for general laboratory use. Safety cannot be guaranteed if used outside of the intended use. Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com...

  • Page 5: Package Contents

    In-Use Cover 1.4. Installation Upon receiving the Ohaus Hotplate-Stirrer check to ensure that no damage has occurred during shipment. It is important that any damage that occurred in transport is detected at the time of unpacking. If you do find such damage, the carrier must be notified immediately.

  • Page 6: Overview

    EN-4 Guardian 7000 Series 1.5. Overview 1.5.1 Dimensions Round Top Hotplate-Stirrer 26.7 x 17.3 x 12.7 cm Overall dimensions (L x W x H) (10.5 x 6.8 x 5”) Top plate dimensions: Ø 13.5 cm (5.3”) Top plate material: Aluminum 120 volts ±10%: 8.3 amps...
  • Page 7 Guardian 7000 Series EN-5 7×7 Hotplate-Stirrer 30.7 x 22.4 x 12.2 cm Overall dimensions (L x W x H) (12.1 x 8.8 x 4.8”) Top plate dimensions: 17.8 x 17.8 cm (7 x 7”) Top plate material: Ceramic 120 volts ±10%: 10.0 amps Electrical (50/60 Hz): 230 volts ±10%: 6.0 amps...
  • Page 8 EN-6 Guardian 7000 Series 10×10 Hotplate-Stirrer 42.2 x 28.6 x 12.2 cm Overall dimensions (L x W x H) (16.6 x 11.25 x 4.8”) Top plate dimensions: 25.4 x 25.4 cm (10 x 10”) Top plate material: Ceramic 120 volts ±10%: 11.2 amps Electrical (50/60 Hz): 230 volts ±10%: 7.0 amps...

  • Page 9: Device Setup

    Guardian 7000 Series EN-7 1.5.2 Device Setup Round Top, 7×7, 10×10-230V A. Display Screen G. Fuse B. Standby Indicator H. Power Entry Module (PEM) C. Left Knob: Controls temperature and settings I. Threaded Knob for Accessory Rod menu J. Standby Switch D.
  • Page 10 EN-8 Guardian 7000 Series 10×10-120V A. Display Screen H. Power Cord B. Standby Indicator I. Threaded Knob for Accessory Rod C. Left Knob: Controls temperature and settings menu J. Standby Switch D. Right Knob: Controls speed and timer K. Feet: Not adjustable E.

  • Page 11: Display (All Units)

    • Rabbit –faster ramp rate U. Program Icon: Illuminates when a program is running. V. SmartPresence™ Icon * The Bluetooth ® word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such marks by OHAUS is under license.

  • Page 12: Operation

    EN-10 Guardian 7000 Series 2 OPERATION 2.1 Getting Ready To get ready: 1. Plug the female end of the provided power cord into PEM (H) on the rear side of the unit. Note: For the 10x10-120V unit, this end of the power cord is fixed to the rear side of the unit.

  • Page 13: Controlling The Stirrer

    Guardian 7000 Series EN-11 2.3 Controlling the Stirrer 1. Rotate the right knob (D) to control the speed setting (R). Clockwise rotation will increase the speed setting (R). Counterclockwise rotation will decrease the speed setting (R). 2. To turn on the stirrer, press and hold the right knob (D) until the unit beeps and the stirrer indicator (Q) illuminates.

  • Page 14: Controlling The Top Plate Heater

    EN-12 Guardian 7000 Series 2.4 Controlling the Top Plate Heater 1. Rotate the left knob (C) to control the heat setting (O). Clockwise rotation will increase the heat setting (O). Counterclockwise rotation will decrease the heat setting (O). 2. To turn on the heater, press and hold the left knob (C) until the unit beeps and the heater indicator (N) illuminates.
  • Page 15 The vessel’s contents being heated may be at a lower temperature depending on the size and thermal conductivity of the vessel. It may be beneficial to monitor the temperature of the vessel’s contents and adjust the setpoint temperature accordingly. If you need precise control, use the Ohaus External Temperature Probe. Typical Time to Boil Water The chart below is an example of an approximate time to boil for the specified amount of water in a specific vessel.

  • Page 16: Controlling The Timer

    EN-14 Guardian 7000 Series 2.5 Controlling the Timer 1. By default the timer (T) will be set to 00:00 and count upwards when the heating or stirring functions are turned on. The timer (T) begins in MM:SS mode. Once the timer reaches 59:59, it will automatically switch to HH:MM mode at 01:00.
  • Page 17 Guardian 7000 Series EN-15 5. Briefly press the right knob (D) to confirm the minutes setting and begin changing the hours setting. The minutes setting will stop blinking and the hours setting will begin to blink to indicate that it can be modified.

  • Page 18: Using The External Probe

    For Example: Water has a theoretical temperature limit of 100°C (boiling). A temperature setpoint greater than 100°C will cause an E7 error. 3. If the Ohaus External Temperature Probe is inserted into the external RTD probe port (F) while the heater is running: The heater will shut off.

  • Page 19: The Settings Menu

    Guardian 7000 Series EN-17 2.7 The Settings Menu 2.7.1 Accessing / Exiting 1. To access the settings menu, press and hold the left knob (C) until ‘MENU’ appears on the screen. Continue to hold the left knob (C) after the unit beeps and the heater indicator (N) illuminates.
  • Page 20 EN-18 Guardian 7000 Series “SAFE” – SmartPresence™ & SmartLink™ SmartPresence™ is an optional safety feature designed to automatically turn the heater off if the unit is unattended for a user-selected time limit. SmartLink™ is an optional safety feature designed to automatically turn the heater off if the user travels out of range of the unit for a user-selected time limit.

  • Page 21: Structure & Defaults

    Guardian 7000 Series EN-19 2.7.3 Structure & Defaults Factory Defaults TLIM 7x7 & 10x10 0-500°C 500°C 0-380°C 380°C PROG P1 - P5 (if loaded) BACK LOAD P1 - P5 (if loaded) BACK BACK RAMP RATE - °C -- (OFF) RATE - RPM...

  • Page 22: Using The Smartheat™ Feature

    EN-20 Guardian 7000 Series 2.8 Using the SmartHeat™ Feature SmartHeat™ allows the user to change the maximum temperature limit (TLIM) of the heater. 1. To control the SmartHeat™ Feature, the unit must first be in the top level of the Settings menu.

  • Page 23: Creating A User Program

    Guardian 7000 Series EN-21 2.9 Creating a User Program The User Programs feature allows the user to load, store, delete, and run a series of heating and stirring functions from a programmable text file from a USB storage device. 1. To create a User Program, the user will need access to a computer and a USB storage device.

  • Page 24: Loading A User Program

    EN-22 Guardian 7000 Series 2.10 Loading a User Program 1. Once the program is complete, save it to a USB storage device named “PROG.txt”. 2. Insert the USB storage device into the USB Port (E) on the rear panel of the unit.
  • Page 25 Guardian 7000 Series EN-23 10. Rotate the left knob (C) to the desired program. 11. Briefly press the left knob (C) to select the program to clear. 12. To confirm the program to clear, rotate the left knob (C) to the “YES” option.

  • Page 26: Using The Smartrate™ Feature

    EN-24 Guardian 7000 Series While the unit is running a program, the left knob (C) and the right knob (D) will be disabled. 19. To stop a program while it is running, flip the switch (J) on the side of the unit. Flip the switch (J) back to on and the unit will return to the main operating screen and be ready for normal use.
  • Page 27 Guardian 7000 Series EN-25 7. Briefly press the left knob (C) to confirm the SmartRate™ setting. 8. To change the SmartRate™ of the stirrer, use the left knob (C) to scroll to the ‘RPM’ setting. 9. Briefly press the left knob (C) to enter the stirrer’s SmartRate™...

  • Page 28: Using The Smartpresence™ Feature

    EN-26 Guardian 7000 Series 2.12 Using the SmartPresence™ Feature SmartPresence™ is an optional safety feature designed to automatically turn the heater off if the unit is unattended for a user-selected time limit. 1. Underneath the unit there is a sensor that can detect the presence of a user in front of the unit.
  • Page 29 Guardian 7000 Series EN-27 9. Briefly press the left knob (C) to change the time at which the unit will shut off the heater and sound an alarm (5 beeps). The minute setting will begin to blink to indicate that it can be modified.
  • Page 30 EN-28 Guardian 7000 Series 18. Rotate the left knob (C) to the desired time. 19. Briefly press the left knob (C) to confirm the desired hour setting. 20. Rotate the left knob (C) to the “BACK” icon. 21. Briefly press the left knob (C) to return to the top level of the settings menu.

  • Page 31: Using The Smartlink™ Feature

    The SmartLink™ feature requires the use of the Ohaus Wireless Dongle (30412537). To purchase the Ohaus  Wireless Dongle contact your Ohaus representative. The SmartLink™ feature also requires the use of a smartphone and the OHAUS SmartLink™ app. This can be  downloaded from the iOS App Store and on Google Play.
  • Page 32 9. Rotate the left knob (C) to the “BLE ID” setting. 10. Briefly press the left knob (C) to change the ID number that the unit will broadcast to the OHAUS SmartLink™ app. 11. Rotate the left knob (C) to change the ID number.
  • Page 33 USB port (F), then the unit will display an error message ("ERR") during Bluetooth connection. 21. Open the OHAUS SmartLink™ app on the smartphone. The app will automatically scan for nearby Bluetooth signals from Guardian 7000 units.

  • Page 34: Using The Single Point Calibration Feature

    Bluetooth connection with the OHAUS SmartLink™ app. Once the SmartLink™ feature is turned on and the OHAUS SmartLink™ app is connected to the unit via Bluetooth , the Bluetooth icon (W) will be illuminated on the main operating screen.
  • Page 35 Guardian 7000 Series EN-33 4. Briefly press the left knob (C) to enter SPC settings menu. 5. Briefly press the left knob (C) again to change the temperature of the SPC. The heat setting (O) will begin to blink to indicate that it can be modified.
  • Page 36 EN-34 Guardian 7000 Series 12. The unit will begin to regulate temperature with compensated error. When this is complete, the ‘SAVE’ icon will appear at the heat setting (O). 13. Measure the temperature at the same location as step 9.
  • Page 37 Guardian 7000 Series EN-35 19. Repeat steps 8-15. 20. To clear a calibrated temperature point, return to the Calibration settings menu. (Steps 1-3) 21. Rotate the left knob (C) to scroll to the ‘CLR’ feature. 22. Briefly press the left knob (C) to enter the Clear SPC menu.
  • Page 38 EN-36 Guardian 7000 Series 29. Press and hold the left knob (C) until the unit beeps and the heater indicator (N) illuminates. The unit will heat to the adjusted temperature as set by the SPC. Test Equipment Depot - 800.517.8431 - 99 Washington Street Melrose, MA 02176 - TestEquipmentDepot.com...

  • Page 39: Enabling / Disabling The Beeper

    Guardian 7000 Series EN-37 2.15 Enabling / Disabling the Beeper Disabling the Beeper Setting will prevent beeps in the following scenarios: • Starting and Stopping the Heater • Starting and Stopping the Stirrer • When the heater reaches the set temperature •...

  • Page 40: Changing The Timer Start Setting

    EN-38 Guardian 7000 Series 8. Briefly press the left knob (C) to return to the top level of the settings menu. 9. Rotate the left knob (C) to scroll to the ‘EXIT’ icon. 10. Briefly press the left knob (C) to return to the main operating screen.

  • Page 41: Changing The Power Recovery Setting

    Guardian 7000 Series EN-39 7. Briefly press the left knob (C) to confirm the Timer Start setting. 8. Rotate the left knob (C) to the “BACK” icon. 9. Briefly press the left knob (C) to return to the top level of the settings menu.
  • Page 42 EN-40 Guardian 7000 Series 4. Rotate the left knob (C) to the “PWRR” (Power Recovery) setting. 5. Briefly press the left knob (C) to change the Power Recovery settings. The current Power Recovery setting will begin to blink. 6. Rotate the left knob (C) to scroll to the desired Power Recovery setting.

  • Page 43: Reset To Factory Default Settings

    Guardian 7000 Series EN-41 2.18 Reset to Factory Default Settings Resetting the unit to Factory Default Settings will do the following: • Clear all programs and single point calibration (SPC) temperatures. • Return SmartHeat™ to the unit’s maximum allowable temperature.
  • Page 44 EN-42 Guardian 7000 Series 9. Briefly press the left knob (C) to return to the top level of the settings menu. 10. Rotate the left knob (C) to scroll to ‘EXIT’. 11. Briefly press the left knob (C) to return to the main operating screen.

  • Page 45: Maintenance

    Always ensure the power is disconnected from the unit prior to any cleaning. If the unit ever requires service, contact your Ohaus representative. The user is responsible for carrying out appropriate decontamination if hazardous material is spilled onto or into the equipment.

  • Page 46: Service Information

    For service assistance or technical support in the United States call toll-free 1-800-672-7722 ext. 7852 between 8:00 AM and 5:00 PM EST. An OHAUS product service specialist will be available to provide assistance. Outside the USA, please visit our website, www.ohaus.com to locate the Ohaus office nearest you.

  • Page 47: Compliance

    Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. Changes or modifications not expressly approved by Ohaus Corporation could void the user’s authority to operate the equipment.
  • Page 48 OHAUS products are warranted against defects in materials and workmanship from the date of delivery through the duration of the warranty period. During the warranty period OHAUS will repair, or, at its option, replace any component(s) that proves to be defective at no charge, provided that the product is returned, freight prepaid, to OHAUS.

This manual is also suitable for:

E-g71hsrdmE-g71hs07cE-g71hs10cGuardian 7000 e-g71hsrdmGuardian 7000 e-g71hs07cGuardian 7000 e-g71hs10c

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