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High Precision Handheld Meter, Calibrator/Thermometer
CL20 Series

high precision temperature calibrator
0.5°F Accuracy Over the Range of 18°C to 28°C (64°F to 82°F)
NIST Traceable Certificate of Calibration
Simulates and Measures Thermocouples, RTDs, Thermistors and Ohms
0.1°F/0.1°C Resolution
10 Memory Locations for Saving Meter Readings and/or Calibrator Outputs
Step Calibrator, Meter Hold, Thermometer Functions
Ramp Function (Models CL25 and CL27)
Review PDF File (Link Below) for Full Specifications & Features


1 Year Warranty Electromagnetic Compatibility

Scroll Below to Order Specs Manuals

The NEWPORT CL20 series calibrator/ thermometers simulate, measure and record RTD, ohm, thermocouple and thermistor signals–all in one meter. They outperform the competition in the lab and on the factory floor with 0.3°C (0.5°F) accuracy and in ambient temperatures from 18 to 28°C (64 to 82°F).

This powerful handheld meter allows the user to calibrate in the field as well as in the lab and offers many additional functions that translate into costeffectiveness, increased productivity and long-lasting versatility and reliability.

The 5-digit LCD display indicates all active functions and allows users to have 0.1° resolution in both Celsius and Fahrenheit. This convenient display takes the guesswork out of which sensor has been selected, displaying °C or °F and operating mode.

Programming a CL20 series calibrator is a snap. The keypad allows direct entry of calibrator setpoints. Setpoints can also be entered from an outside source by inputting temperatures or voltages through the thermometer mode. There are no reprogramming hassles. The program won’t be lost when the meter is shut off. All values are retained and can be retrieved for fast repeat use.

These calibrators feature 10 memory locations that can instantly recall any programmed value, and the step function lets the user run through the test points at the push of a button. This efficient feature saves time by allowing the user to simply enter the output value and calibrate.

The ramp function of Models CL25 and CL27 makes calibrating switch and alarm setpoints quick and easy. By entering the upper limit, lower limit and step size, the meter automatically ramps between the limits. There is also a manual ramp function.

No matter what thermocouple type is used, one of these meters can handle it. Features to choose from include 100 ohm and 1000 ohm RTD and 2252 ohm thermistor capabilities.
CL20
Need to comply with ISO-9000 reporting specifications? These meters can help! All conform to the temperature/voltage tables of the National Institute of Standards and Technology (N.I.S.T.). OMEGA provides a free NIST Traceable Certificate of Calibration for your records. Since ISO-9000 requires that calibration be done at the equipment site, these meters are a perfect choice. With 0.3°C (0.5F°) accuracy in an ambient temperature range of 18 to 28°C (64 to 82°F), you’re not confined to the lab. Take it everywhere. The ABS plastic case protects it from dust and dirt.
SPECIFICATIONS
Display: 5-digit LCD custom indicators for calibration type, units hold, recall, store, operating mode, bal, loaded memory locations (up to 10) Keypad: Momentary switches with tactile feedback, select power, thermocouple type, units, resolution, hold, store/recall, stop/clear, operating mode
Configuration Retention: selected operating mode, thermocouple type, units, resolution and memory contents retained on power off
Diagnostics: low battery, open input, invalid keypad entry, out of range, internal hardware fault
Accuracy: see ordering matrix for details
Ambient Temperature: 0 to 50°C (32 to 122°F), 0 to 90% RH
Reading Rate: 1 per second
Input Current: 50 nA typical(meter mode)
Output Load: 100 ohms, min. (calibrator mode)
Max. Common Mode Voltage: 42 V peak to earth ground
Power: 9 Vdc battery, alkaline, included
Battery Life: 16 hrs alkaline
Dimensions: 178 H x 74 W x 28 mm D (7.0 x 2.9 x 1.1")
Weight: 340 g (12 oz)
CL20 Series Temperature Measurement and Calibration Range
Input Type
Range
Resolution
K
200 to 1371°C
-328 to 2502°F
0.1°
J
-210 to 760°C
-346 to 1400°F
0.1°
T
-200 to 399°C
-328 to 752°F
0.1°
E
-230 to 999°C
-382 to 1832°F
0.1°
N
200 to 1299°C
-328 to 2372°F
0.1°
B
499 to 1815°C
932 to 3308°F
0.1°
R
0 to 1768°C
32 to 3214°F
0.1°
S
0 to 1768°C
32 to 3214°F
0.1°
G
299 to 2315°C
572 to 4201°F
0.1°
C
0 to 2315°C
32 to 4201°F
0.1°
D
0 to 2315°C
32 to 4201°F
0.1°
RTD
-200 to 849°C
-328 to 1562°F
0.1°
Series 400 Thermistor 22520 Ohm
-40 to 150°C
-40 to 302°F
0.1°


CL26 and CL27 Resistance Measurement and Calibration Outputs
Ohms Range
Resolution
Models
0-100Ω
0.01Ω
CL26 & CL27
0-1000Ω
0.1Ω
CL27
0-100,000Ω
1.0Ω
CL26
Model Number
Features
TC
Types
Platinum
RTDs
Thermistor
Resistance
0 to:
Resistance
Resolution
Accuracy Calibrator & Thermometer
Ramp
Feature
CL23A
K, J, T
---
---
---
---
±0.3°C from -46 to 677°C
0.04% over 677°C
±0.5°C under -46°C
No
CL24
K, J, T, E
---
---
---
---
0.04% over 677°C
±0.5°C under -46°C
No
CL25
K,J,T,E,N,R,S,B,G,C,D
---
---
---
---
±0.3°C full scale
K,J,T,E,N
0.8°C full scale
B,R,S,G,C,D
Yes
CL26
K, J, T, E
100Ω
400 Series
2252Ω
100 kΩ
100Ω

0.01Ω
±0.3°C from -46
to 677°C 0.04% over 677°C
±0.5°C under -46°C
Ωs: 0.04% of range
±0.3°C RTD & thermistor
No
CL27
K,J,T,E,N,R,S,B,G,C,D
100Ω
1000Ω
---
1kΩ
100Ω
0.1Ω
0.01Ω
±0.3°C full scale
K,J,T,E,N
0.8°C full scale
B,R,S,G,C,D
Ωs: 0.02% of range
0.1°C full scale RTD
Yes


Product Selection (Specify Model Number)
 Part Number   Availability   Price    Description   
 CL23A in-stock    $630.00     Handheld Meter, K, J, T  
 CL24 in-stock    $665.00     Handheld Meter, K, J, T, E  
 CL25 4 Weeks    $875.00     Handheld Meter, K,J,T,E,N,R, S,B,G,C,D  
 CL26 in-stock    $1,035.00     Handheld Meter, K,J, T ,E, RTD & thermistor  
 CL27 in-stock    $1,165.00     Handheld Meter, K,J,T,E,N,R, S,B,G,C,D & Platinum RTD's 100 Ohm & 1000 Ohm  
 [divider]     Consult sales   Accessories  
 HH22-AC in-stock    $102.00     NiMH battery and adaptor, 115 V  
 CL-300-CABLE-K-2 1 Week    $10.60     Spare calibration cable for K thermocouple, 2', 24AWG, SMP to spade lug  
 CL-300-CABLE-K-10 1 Week    $21.25     Spare calibration cable for K thermocouple, 10', 24AWG, SMP to spade lug  
 CL-300-RSC-K-2 1 Week    $21.25     Spare calibration cable for K thermocouple, 2' retractable, expands to 10', SMP to spade lug  
 TA4F in-stock    $10.25     Spare calibration connector for use in making calibration cable for RTD or Thermistor signals  
 
All dollar amounts on this site are shown in US currency.

 Note: Each CL20 handheld meter is supplied as a complete kit with 4 beaded wire thermocouples (J, K, T, or E), 4 TAS standard to mini thermocouple adaptors (J,K,T,E), 4 calibration cables (J, K, T, or E), shock resistant holster, belt clip, integral tilt stand/handle, wrist strap, rugged carrying case, and certificate of calibration. The CL26 and CL27 handheld meter also includes one 3-wire RTD calibration cable, one 2-wire resistance cable and one TA4F RTD adaptor. The CL23A handheld meter does not include type E thermocouple, adaptor or cable. To order additional spare thermocouple calibration cables of different type, change "K" in part number to desired type, e.g. CL-300-CABLE-T-2.
 Ordering Example: (1) CL24 Handheld Meter, J/K/T/E calibration/thermometer kit = $665

   
Keywords: High Precision Handheld Meter, Calibrator / Thermometer, Thermocouples, RTD's and Thermistors, Models CL23A, CL23EC, CL24, CL25, CL25EC, CL26, CL27, CL27EC, CL28MA, CL466, CL6503

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