RTD
Thermometer
C-370
Instruction
Manual
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Table of Contents
Introduction .................................................................................................... 3
Product Quality ...............................................................................................3
Safety ............................................................................................................. 3
Features ..........................................................................................................3
Specications ..............................................................................................4-5
Range Specifications ................................................................................. 4
Temperature Coefficient ............................................................................ 5
RTD Probe Accuracy Specifications .......................................................... 5
Instrument Description ................................................................................... 6
Display Description ........................................................................................ 7
Operating Instructions ...............................................................................8-13
Connecting the Pt100 RTD Probe (TP-R01) .............................................. 8
Connector Configuration ........................................................................... 8
Powering the Meter ................................................................................... 8
Selecting Temperature Units ...................................................................... 9
Taking Measurements ................................................................................ 9
Data Hold ................................................................................................... 9
Backlight .................................................................................................... 9
Relative Function ..................................................................................... 10
MAX/MIN/AVG Function .......................................................................... 10
Auto Power Off ...................................................................................10-11
Pt Type Selection ..................................................................................... 11
0°C Calibration ......................................................................................... 12
Reset Calibration Value to Factory Settings .......................................12-13
Battery Replacement .................................................................................... 13
Applications .................................................................................................. 14
Accessories and Replacement Parts ........................................................... 14
Product Care ................................................................................................ 14
Product Warranty .........................................................................................14
Product Disposal and Recycling .................................................................. 15
Product Support ........................................................................................... 15
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2
Introduction
Thank you for purchasing your REED C-370 RTD Thermometer. Please
read the following instructions carefully before using your instrument. By
following the steps outlined in this manual your meter will provide years of
reliable service.
Product Quality
This product has been manufactured in an ISO9001 facility and has been
calibrated during the manufacturing process to meet the stated product
specications. If a certicate of calibration is required please contact the
nearest authorized REED distributor or authorized Service Center. Please
note an additional fee for this service will apply.
Safety
Never attempt to repair or modify your instrument. Dismantling your
product, other than for the purpose of replacing batteries, may cause
damage that will not be covered under the manufacturer's warranty.
Servicing should only be provided by an authorized service center.
Features
• Designed to meet food service standards
• Quick responding, high accuracy
• Large, easy-to-read backlit LCD display
• User selectable °C, °F
• Min/Max/Avg functions
• Relative mode and Data hold
• IP67 rated waterproof housing
• Low battery indicator and auto shut off
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Specifications
Measuring Range: -148 to 572°F (-100 to 300°C)
Resolution: 0.1°F/°C
Type: Single Input, RTD
Response Time: 2x/second
Stem Material: 316SS
Display: 3 1/2-digit LCD
Backlit Display: Yes
Data Hold: Yes
Min: Yes
Max: Yes
Average: Yes
Relative Mode: Yes
Auto Shut-off: Yes (after 30 minutes/off)
Low Battery Indicator: Yes
Power Supply: 3 x AAA Batteries
Battery Life: Approx 100 hours (Alkaline)
Product Certications: IP67, CE
Operating Temperature: 32 to 104°F (0 to 40°C)
Storage Temperature: 14 to 140°F (-10 to 60°C)
Operating Humidity Range: 10 to 90%
Dimensions: 5.9 x 2.6 x 1.2" (150 x 66 x 31mm)
Weight: 6.2oz (175g)
Range Specifications
Range Accuracy
-100 ~ 300°C ±(0.1% reading + 0.4°C)
-148 ~ 572°F ±(0.1% reading + 0.8°F)
Note: The basic accuracy specications does not include the error of
the RTD probe, refer to the RTD probe accuracy specications below for
additional details.
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4
Temperature Coefficient
For ambient temperatures from 0 to 18°C and 28 to 50°C, for each
temperature reading below 18°C or above 28°C add the following
tolerance into the accuracy specication:
0.01% of reading + 0.03°C (0.01% of reading + 0.06°F)
RTD Probe Accuracy Specifications (TP-R01)
Sensor Type Platinum resistance thermometer sensor Pt 100
(4 wires)
Accuracy IEC, class A
±0.27°F (±0.15°C) ±0.002 measurement temp.
Measurement Range -100 to 400°C
Temp. Sensor Dim. Approximately Ø3.2mm (Ø0.125")
Temp. Sensor Length Approximately 120mm (4.72")
Cable Length Approximately 1100mm (43.3")
Water-Resistant EN60529:1991, IP67
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Instrument Description
C-370
9
1. PT00 Input Jack
2. LCD Display
3. Power Button
4. HOLD Button
5. MAX/MIN/AVG Button
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6. Backlight Button
7. Relative Function Button
8. °C/°F Button
9. Battery Cover
6
Display Description
10
11
1
2
3
4
1. Battery Power Indicator
2. Temperature Reading
3. Platinum Type Indicator
4. Minimum Value Indicator
5. MIN/MAX/AVG Temperature
Reading
6. Maximum Value Indicator
9
8
7
6
5
7. Average Value Indicator
8. Temperature Unit of Measure
Indicator
9. Relative Mode Indicator
10. Data Hold Indicator
11. Auto Power Off Indicator
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Operating Instructions
Source - Source +
NC
Connecting the Pt100 RTD Probe (TP-R01)
Connect the Pt100 probe to the input jacks located at the top of the meter
as indicated below.
C
3
7
0
Connector Configuration
Sense + Sense -
Powering the Meter
To turn the meter on or off, press the POWER button.
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8
Selecting Temperature Unit of Measure
1. When the meter is rst powered on the default scale setting is set to
Celsius (°C).
2. Press the °C/°F button to toggle between Celsius and Fahrenheit.
Note: The meter will automatically save the selected unit when turned off
as the new default.
Taking Measurements
Once the meter has been setup
and the Pt100 probe has been
connected, place the temperature
probe in the area being tested.
Give the meter several seconds
to stabilize. Read the temperature
measurement on the LCD. If "- - - -"
appears on the display, either the
reading is out of range or the Pt100
probe is not connected or it may
be defective.
Note: The temperature sensor is
located at the tip of the Pt100
probe. To accurately test internal
temperatures, make sure the probe is inserted at a distance of at least 15
times the diameter of the metal sheath as indicated in the diagram.
Data Hold
1. Press the HOLD button to freeze the current reading on the display.
2. Press the button again to resume normal operation.
Note: When Data Hold is active the MAX/MIN/AVG, °C/°F and
buttons are disabled.
REL
Backlight
Press the BACKLIGHT button to turn the LCD Backlight on and off.
Note: The backlight will automatically turn off after 10 seconds.
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Relative Function
1. Press the REL button to store the current measurement.
2. Under this mode, the meter will display the difference between any
new measurement and the stored measurement.
3. Press the REL button again to exit Relative function.
MAX/MIN/AVG Function
When the button is pressed, the meter will enter the MAX/MIN/
AVG function. Under this function, the maximum value, minimum value
and average values taken during the measurement process will appear on
the lower part of the display when selected.
Note: The average value is calculated using the last 8 readings in memory
and will update with every new reading.
1. The rst value to appear on the display in this function is the
Maximum value as indicated by the "MAX" symbol and is updated
when a new maximum data value has been taken.
2. Press the
appear on the display as indicated by the "MIN" symbol and is
updated when a new minimum data value has been taken.
3. Press the
appear on the display as indicated by the "AVG" symbol.
4. Press the button a fourth time and the "MIN", "MAX", "AVG"
symbols will blink simultaneously while continuing to update the
readings in memory and can be viewed by returning to the appropriate
function. While in this function, the meter is displaying the current
measurement value only.
5. To exit the MAX/MIN/AVG function, press and hold the button
for two seconds.
Note: When the meter is in MAX/MIN/AVG function, the REL and °C/°F
buttons are disabled.
button again and the Minimum value will now
button a third time and the Average value will now
Auto Power Off
1. To preserve battery life, the meter is programmed to turn off after
30 minutes of inactivity.
continued...
10
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2. To turn this function off, press and hold the HOLD button while
powering on the meter.
3. Release both buttons simultaneously.
4. There will be successive beeps emitted from the meter at start up
while the Auto Power Off indicator will not appear on the display,
conrming this feature is now disabled.
5. If the meter is turned off then back on, the "Auto Power Off" feature
will be enabled again.
Turn the power "OFF" before attempting the following SETUP procedures.
The setup mode will be cancelled if during the following procedures the
POWER button is pressed.
Pt Type Selection
While the meter is off, press and hold the POWER and BACKLIGHT
buttons for 2 seconds to enter the setup function. Press the HOLD
button to enter the Pt selection function. Press the MAX button to toggle
between Pt probe type as indicated by Pt100, Pt500 and Pt100. Press
the °C/°F button to conrm the selection.
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0°C Calibration
Insert temperature probe into a 0°C standard calibrator unit
before calibration. Hold the probe until condition is stabilized
before starting calibration.
While the meter is off, press and hold the POWER and BACKLIGHT
buttons for 2 seconds to enter the setup function. Press the REL button
to enter the calibration function. Enter the Pt selection rst. Press the
°C/°F button to conrm the Pt selection. Press the REL button to enter
the calibration function. Press the REL button to conrm the current
calibration value. Press the °C/°F button to conrm the selection and
resume normal operation.
Reset Calibration Value to Factory Settings
While the meter is off, press and hold the POWER and BACKLIGHT
buttons for 2 seconds to enter setup function. Press the
to enter calibration mode. Enter Pt selection rst by pressing the MAX
button to toggle between Pt probe types. Press the °C/°F button to
conrm the Pt selection. Press the BACKLIGHT button to enter the reset
function. Press the °C/°F button to reset the calibration value to factory
settings. Press the °C/°F button to conrm the selection and resume
normal operation.
REL button
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Battery Replacement
When the low battery symbol,
,appears on the
display, the batteries need to
be replaced.
1. Remove all of the screws
located on the back of
the unit and remove the
cover as shown below.
2. Replace the three (3)
"AAA" batteries.
3. Properly secure the cover
and tighten the screws.
The unit's back cover is tted with rubber rings. After
replacing the batteries, check that the rubber rings are
properly placed before reinstalling the back cover. Improper
placement of the rubber rings will compromise the unit's
water-resistant structure, and possibly result in damage to
the meter.
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Applications
• Medical
• Pharmaceutical
• Industrial and Commercial Temperature Applications
• R&D and Educational Establishments
• Food Service
Accessories and Replacement Parts
CA-05A Soft Carrying Case
TP-R01 Replacement Pt100 RTD Probe for REED C-370
Don't see your part listed here? For a complete list of all accessories and
replacement parts visit your product page on www.reedinstruments.com.
Product Care
To keep your instrument in good working order we recommend the following:
• Store your product in a clean, dry place.
• Change the battery as needed.
• If your instrument isn't being used for a period of one month or longer
please remove the battery.
• Clean your product and accessories with biodegradable cleaner. Do not
spray the cleaner directly on the instrument. Use on external parts only.
Product Warranty
REED Instruments guarantees this instrument to be free of defects in
material or workmanship for a period of one (1) year from date of shipment.
During the warranty period, REED Instruments will repair or replace, at no
charge, products or parts of a product that proves to be defective because
of improper material or workmanship, under normal use and maintenance.
REED Instruments total liability is limited to repair or replacement of the
product. REED Instruments shall not be liable for damages to goods,
property, or persons due to improper use or through attempts to utilize the
instrument under conditions which exceed the designed capabilities. In
order to begin the warranty service process, please contact us by phone at
1-877-849-2127 or by email at info@reedinstruments.com to discuss the
claim and determine the appropriate steps to process the warranty.
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Product Disposal and Recycling
Please follow local laws and regulations when disposing or recycling your
instrument. Your product contains electronic components and must be
disposed of separately from standard waste products.
Product Support
If you have any questions on your product, please contact your authorized
REED distributor or REED Instruments Customer Service by phone at
1-877-849-2127 or by email at info@reedinstruments.com.
Please visit www.REEDINSTRUMENTS.com for the most
up-to-date manuals, datasheets, product guides and software.
Product specifications subject to change without notice.
All rights reserved. Any unauthorized copying or reproduction of
this manual is strictly prohibited without prior written permission
from REED Instruments.
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