USA Lab USA-RH-11L User manual

Version : 2020
RECIRCULATING
HEATER
USA-RH-11L

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TABLE OF CONTENTS
Keep this manual on-hand so it can be used by all operators of the unit. Use
the unit only in the way described in this manual.
Failure to follow the instruction in this manual may cause wrong operation.
1. General Description 3
2. Graphic Simbols 4
4. The Outward 6
3. Key Features 5
5. Installation 7
6. Setting and Operation 8
7. Specication 12
8. Troubleshooting 13

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1. GENERAL DESCRIPTION
Thank you for purchasing our product. We know that in today's
competitive marketplace, customers have many choices when purchasing
laboratory equipments.
We appreciate your choosing our quality product. Our stands behind our
products and wants to let you know we are here if you need us.
Before you use the unit, read this entire manual carefully to understand
how to install, operate and maintain the unit in a safe manner.
Your satisfaction with the unit will be maximized as you read this manual
thoroughly.
Our capable products will satisfy you by the best performance of with easy
operation.

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2. GRAPHIC SIMBOLS
BE SURE THAT YOU UNDERSTAND ALL OF THESE SYMBOLS
BEFORE OPERATING THE UNIT.
This symbol indicates items and procedures that are STRICTY
PROHIBITED with regards to the unit.
Important operating and / or maintenance instruction.
Read the accompanying text carefully.
Potential electrical hazards.
Explosive.
No disassemble.
Flammable.
Hot surface or steam.

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3. KEY FEATURES
• Digital display of temp and time
• Multi key-in (100Ω(DIN Pt100Ω),
KPt100Ω(JPt100Ω), K(CA))
• Precise temperature control
• Auto back up
• Over-temperature protection function • Excellent heat exchanging
⤵
⤵
IN OUT
KEY FEATURES
4
3. KEY FEATURES
• Digital display of temp and time
• Multi key-in (100Ω(DIN Pt100Ω),
KPt100Ω(JPt100Ω), K(CA))
• Precise temperature control
• Auto back up
• Over-temperature protection function • Excellent heat exchanging
⤵
⤵
IN OUT

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PUMP
4. THE OUTWARD
<USA-RH-11L>
ELB breaker
Temp controller
Drain
PUMP

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5. INSTALLATION
Serial label shows the electric power specication of the unit.
Connect power and turn on the main switch (E.L.B)
Dual application
⤵
⤵
⤵
IN INOUT OUT
In case of connecting with
other device.
In case of connecting itself.

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6. SETTING AND OPERATION
If you want a minute-second or day-hour time combination instead,
feel free to contact your supplier.
※The first 2 digits=hours
The last 2 digits=minutes
※Be aware that 00.00 means infinite value.
The unit will continue to run until the user manually turns it off.
(2) TIME mode
(1) TEMP mode
↓
↓
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
Step1. Click MODE button.
Step2. Click MODE button
once more and set
your target
temperature.
Step2. Click MODE button
once more and set
your desired time.
Step1. Click MODE button
after finishing
TEMP setting.
Time setting
99HR 59MIN(max)
00.00 set as
continuous run.
Step3. Click MODE button
once more to
complete setting.
Step3. Click MODE button
once more to
complete setting.
Value
shift/edit
Value
shift/edit

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↓
↓
(3) BEEP mode
The span of time set under beep mode is the duration of the beeping once the
set operating time has been finished.
1 buzzer sound/sec.
The BEEP timer will only operate once TIME mode is set.
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
Step1. Press MODE button
for 3 sec to move to
BEEP mode.
Step2. Click MODE button
once more.
Step3. Set yoyr desired span
of beeping time.
Press MODE button
for 3 sec to get out
of BEEP mode.

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(5) Auto Tuning(AT)
AT is recommended under 2 cases.
case1. When the change of current temp is fluctuating more than ±0.1℃.
case2. When the unit can not reach at the set temp.
Press
for 5 sec
during
operation
You can enter / quit AT mode by pressing for 5 sec when the unit runs.
AT will be finished automatically when it is done.
↓
(4) Start / Stop the unit
OUT1 lamp will be on or blinking during the unit runs.
TIMER lamp will be blinking and it will be on when the set temp is reached.
OUT2 is nothing to do with this product.
Press for 3 sec and the unit will start running with RUN lamp on.
Press for 3 sec and the unit will stop running with RUN lamp off.
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
RUN

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* 0.100=100%
0.60=60%
0.30=30%
Output of heater
Output of heater
Output of heater
➡You can check the output of heater by clicking button for 1 sec.
➡You can check the remaining operating time by clicking button one more time.
➡You can return to the original display by clicking button one more time.
(6) Checking the remaining operation time and the output of heater
⤵
⤵
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
RUN
OUT1
TIMER
OUT2
Click!
Click!
Click!
The output of heater
Remaining Time
shown on Display

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7. SPECIFICATIONS
RECIRCULATING HEATER - USA-RH-11L
Model USA-RH-11L
Temp Range Ambient +5℃ to 99℃ (Ambient + 9℉ to 210℉)
Temp Controller Digital PID Controller
Time Range 00.00 to 99HR 59MIN (MIN SEC) Selectable Digital Display
Capa 10.8 L
Heater Capa 4KW
Dimension Internal
(W×D×H )
240x300x150(mm)
9.45x11.81x5.91(inch)
Dimension External
(W×D×H )
290x390x470(mm)
11.41x15.35x18.50(inch)
Top Open
(W×D)
240x124(mm)
9.45x4.88(inch)
Net weight 7 Kg
Material Internal Stainless Steel
Material External Steel Plate With Powder Heating Coated
Electrical Requirements
230V,50/60Hz, 1Φ 17.4 A
PUMP
PUMP

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8. TROUBLESHOOTING
Symptom Passible Causes of Problem
Unit does not work
Check power is connected well.
Press button for 5 sec if lamp OUT is continuously
on.
Temperature does not rise
Press for 3 sec.
Press button for 5 sec.
Check OVER TEMP set value.
Operating Temp.fluctuates Press button for 5 sec.
Press button for 5 sec.
Alert of temperature sensor's short circuit.
RUN
OUT1
TIMER
OUT2

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Memo

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Memo

11730 Globe St.
Livonia MI 48150
Call us at 734-855-4890