rossmax ThermoCal Professional Testing Device for Thermometer Instruction Manual
- June 3, 2024
- RossMax
Table of Contents
rossmax ThermoCal Professional Testing Device for Thermometer product
Introduction
Accuracy is always the biggest concern of a thermometer user. Rossmax Thermo Cal is a portable and convenient device that allows the user to easily check the accuracy of a thermometer in just a few seconds. The innovative design of the adjustable blackbody cavity applies to all three types of Rossmax thermometer products – pen type, ear and temple thermometer.
Parts name/location
Control panel
Back view
Instructions for installation
- Install the device on a solid surface.
- Make sure the power is off before plugging in the device.
- Keep the device away from the environment with direct sunlight, high temperature, high humidity or severe change in temperature.
- Make sure the AC power and its grounding plug are properly connected.
- Do not use power extension cords.
- Use pure water or distilled water only for the water bath to avoid contamination or water heater breakdown.
- Pay attention to the water level to avoid overspill.
- The water bath is to remain 90% full at all times to reach water temperature stability.
Operation procedures
Check the accuracy
- Check water level of the bath.
- Turn on the device.
- Select a testing temperature on the control panel (default at 37°C).
- Wait for the water to reach the desired temperature.
- Choose the blackbody cavity corresponding to the thermometer types.
- Set the thermometer into the calibration mode.
- Insert the probe/tip into the cavity.
- Start the measurement.
- Thermometer will beep when the measurement is completed.
- Compare the reading given by the thermometer to the calibration temperature.
The acceptable allowance is within ±0.2°C.
Drain the water bath
- Make sure the device is off.
- Remove the tube from the upper end.
- Empty the water bath by lowering the upper end of the tube. Step 4: Plug the tube back in after the draining is completed.
Cautions and maintenance
- Make sure the device, AC power and its grounding plug, is plugged in properly.
- Change water periodically, once a month is suggested.
- Use pure water or distilled water only for the water bath. Other water sources might increase the chance of calcium carbonate formation on the outside of the water heater.
- Make sure there is enough water in the water bath every time before using the device. Please constantly pay attention to the water level and hygiene when/if the device runs for over 6 hours or the water temperature exceeds 40°C.
- Keep the device away from physical impact.
- Unplug the device and empty the water bath if the device is going to be inactive for a long time.
- Unplug the device before moving it or draining the water bath.
- Clean the water bath with a 3M scrub sponge if any signs of iron oxidization appear.
- Pay attention to the water temperature to avoid scald.
Specifications
| Power source | AC 220-240V 50/60 Hz |
|---|---|
| Power of water heater | 255W |
| Testing temperature | Ambient temperature + 5°C to maximum 45°C |
| Ambient temperature | 16 ~ 30°C |
| Stability of water bath temperature | ± 0.02°C |
| Diameter of blackbody cavity | Pen type |
| Ear | 12.5 mm |
| Temple | 55 mm |
| Capacity | 5.39 Liters |
| Weight | 9.69 kgs |
| Dimension | 180(W) x 350(H) x 320(D) mm |
Trouble shooting
- Power is switched on but the power indicator does not light up
Possible causes| Actions to take
---|---
No power input| Check the power source
Loose plug| Insert the plug into the socket securely
Device is powered and running but the power indicator does not light up| Replace the power switch
Power wire broke or loose connection| Replace the power wire(s)
Tripped fuse| Check the fuse and replace it if needed - Heating indicator of the water bath does not light up after the calibration temperature is set
Possible causes| Actions to take
---|---
Water temperature is higher than the set temperature| Cool down the water in the bath
Defective heating indicator| Contact Rossmax for service
Defective temperature controller| Contact Rossmax for service
Set temperature is too low| Set temperature should be at least 5°C higher than operating temperature - Heating indicator of water bath lights up, whereas the water temperature remains low
Possible causes| Actions to take
---|---
Defective heater circuit| Contact Rossmax for service
Defective temperature controller| Contact Rossmax for service - Water temperature continues to rise and exceed the set temperature
Possible causes| Actions to take
---|---
Defective temperature controller| Contact Rossmax for service - Large fluctuation in water temperature
Possible causes| Actions to take
---|---
Water temperature is not stable yet| Wait for temperature to stabilize
Set temperature is too close to ambient temperature| Lower the ambient temperature
Defective temperature controller| Contact Rossmax for service
Defective water heater| Contact Rossmax for service - Power and power indicator are both on, whereas the water circulating pump does not start
Possible causes| Actions to take
---|---
Foreign object clogs inside the pump| Remove the foreign object
Loose screw used to secure the propeller| Tighten the screw
Defective motor| Contact Rossmax for service - Noise generated by the stirrer motor
Possible causes| Actions to take
---|---
Bearing ball oxidation| Replace bearing
Bearing aging| Replace bearing
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>