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Portable/Wireless Universal Circular Chart Recorder

Portable/Wireless Universal Chart Recorder

$1,983.95

Item# CTXL-TRH-W

Volume discounts available
Volume Discount Schedule
Quantity Price each
1-4 $1,983.95
5-9 $1,884.75
10-24 $1,845.07
25-49 $1,765.72
50-99 $1,726.04
100+ $1,686.36

In stock

Lead Time (If not in stock): 10 weeks
Portable/Wireless Universal Chart Recorder CTXL-TRH-W CTXL-TRH-W
  • CTXL-TRH: Temperature & Relative Humidity with Wired Probe
  • CTXL-TRH-W-W9: Temperature & Relative Humidity with Wireless Probe
  • CTXL-DPR: Dual Process Input (Voltage or Current)
  • CTXL-DTC: Dual Thermocouple Input, J, K or T type programmable from PC
  • CTXL-PH: pH & RTD Temperature
  • Available in Computer Room White or Charcoal Gray
  • Large, 200 mm (8") Scale
  • 1, 7 or 32 Day Recording
  • Easy to Read Dual Channel Backlit LCD Readout
  • Convenient Front Panel Programming/Operation
  • Monitors Min/Max/Avg Values
  • High/Low Audible/Visual Alarms
  • Dual High Alarm Relays, Dual Low Alarm Voltage Outputs
  • Double Sided Charts with Magnetic Mount Hub
  • Benchtop or Wall Mount with Built-in Chart Lights
  • Powered by 4 D Batteries or Universal AC Adaptor
  • CTXL-PR / CTXL-PT: optional wireless receiver and transmitter to retrofit a CTXL-TRH unit
  • Free Windows Based Data Logging Software Available Online

CTXL-TRH-W Model Options

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Edit these specs to order a different model. Not all combinations are valid. Options compatible with previous selections will be in bold.

*Highlighted options are not compatible. Please select a different combination.

Number of Channels
Measurement Type
Measurement Range
Chart Time
Number of Alarm Relays
Battery Back-up
Additional Features


Starting from May 1st 2018, CTXL-G Grey Color Models has been discontinued. As an identical functional and performance substitute, please check out the CTXL-W White Color Models for details.

The CTXL Series circular chart recorders from OMEGA combine form and function in an easy to use two-channel circular chart recorder with a large, 200 mm (8") diameter chart, and dual channel LCD readout. The CTXL recorder is offered in 5 models, Ambient Temperature and Relative Humidity, Wireless Temperature/ Relative Humidity with an RF range of 90m (300 ft) line of sight maximum, dual thermocouple (J,K,T), dual process (1 V, 5 V, 10 V, or 0/4 to 20 mA), or pH/ RTD temperature.

The CTXL has a custom LCD readout that displays the current values of both channels, and can indicate the min, max or average input values as well. The display also indicates the chart speed (1, 7 or 32 day), battery status, high and low alarm indication, keypad lockout status, and battery life.

Additional features of the CTXL include dual relays with contact closures for high alarms, and dual voltage outputs for low alarms to drive external relays. A built-in audible buzzer also informs the user of an alarm condition. A hidden key (White Box) can lockout unauthorized access to the front keypad, preventing changes to the recorder settings.

The CTXL features a rugged, ABS enclosure, suitable for industrial environments, but it’s also intended to fit right in to other environments, such as museums, art galleries, computer rooms, labs, clean rooms, even hospitals. The CTXL is designed for both benchtop and wall mount operation a convenient base rotates out of the way, and is hidden by a decorative foot cover for wall mount use.

Each unit comes complete with 120 assorted double-sided charts, 2 pen sets, extra chart light, universal ac adaptor (110 to 240 Vac, 50/60 Hz), 4 D cell alkaline batteries, RS232 cable and adaptor, wall mounting kit, and quick start manual. CTXL-TRH models are also supplied with sensor probe and clip, and 1.8 m (6') probe extension cable.

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Rated 5 out of 5 by from ED Awesome item and works as it should. Very happy with this purchase.
Date published: 2024-02-24
Rated 2 out of 5 by from Hit or Miss One works faultless and the other one constantly falls.
Date published: 2020-07-16
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Does this come with calibration certs?

Asked by: WillieH
Hi WillieH Thank you for the inquiry. NIST cert is optional. A certificate of conformance will be included with confirmation of order. Best regards OMEGA
Answered by: NorwalkAE
Date published: 2020-06-14

We have a CTXL-TRH-W model but we have problems selecting the correct paper chart. We have the paper charts CT485-CWC and the CT485-CDF. The main problem is that both charts start the humidity scale in different points. Which one is correct?

Asked by: Kevin320185
Hi Kevin, Thank you for the inquiry. CWC chart is weekly rotation degrees C. CDF chart is daily rotation degrees F. When you select matching temperature units in the set up menu the RH values will also match the chart range values. Refer to quick start manual to select the matching temperature units of your chart paper. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2024-04-22

We are trying to record Humidity and Temperatures in a Primer Booth. The operations will produce combustible vapors under normal operating conditions. Do the Model CTXL-TRH-W meet electrical requirements for class 1 division 1. If not? Recommendations?

Asked by: Fernando adhesive primer
Hi Fernando, Thank you for the inquiry. The CTXL does not meet Class 1 requirement. We currently do not offer a similar rated product. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-03-29

The pen of the chart recorder CTXL TRH W is not starting on the initial line, it starts two degrees off line of the grid. It was already calibrated.  Thanks for your input. 

Asked by: Bertelib
Thank you for the inquiry. Please forward this question to TEMP@DWYEROMEGA.COM. Best regards OMEGA
Answered by: Norwalk AE_RS
Date published: 2024-10-20

What is the warranty and life spam of this unit?

Asked by: Armando35
Hi Armando35 Thank you for the inquiry.Warranty is for 2 years. We do not have a published service life of this product. Best regards OMEGA
Answered by: AENwlk
Date published: 2020-07-21

Your manual states that temperature calibration is not necessary. How do I justify this in an audit? Also the humidity calibration is two point. Our requirement is a 3 point calibration is this possible?

Asked by: Mr Cook
Hi Mr Cook, Thank you for the inquiry. For temperature / RH certifications you can still verify accuracy at multiple points. If temperature reading is out of tolerance there is no adjustment. The RH adjustment is based on 2 points. Best regards OMEGA
Answered by: NorwalkAE_RS
Date published: 2022-03-18
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CTXL Extension Cable
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Accessories
6 ft. (2 meter) remote sensor cable
$37.52
0 In Stock
Universal 9 Vdc adaptor, 100 to 240 Vac
$45.06
116 In Stock
Calibration kit
$214.65
3 In Stock
General purpose pH laboratory electrode
$104.43
5 In Stock
Heavy duty pH Electrode with 100 ? RTD sensor
$279.76
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R232 Cable
$37.09
0 In Stock
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