Portable Universal Circular
Chart Recorder
5 Models Available
Choice of White
or Gray to Meet
Your Needs!
5 Models Available!
1 Temperature/Humidity
with Wired Probe
2 Temperature/Humidity
with Remote
Wireless Probe
3 Dual Process-Voltage
or Current
4 Dual Thermocouple
5 pH/Temperature
PATENTS PENDING
Large 200 mm
(8") 2-Sided
Chart
CTXL Series
†
Optional
U Large, 200 mm (8") Scale
U 1, 7 or 32 Day Recording
U Easy to Read Dual
Channel Backlit LCD
Readout
U Convenient Front Panel
Programming/Operation
U Monitors Min/Max/Avg
Values
U High/Low Audible/
Visual Alarms
U Dual High Alarm Relays,
Dual Low Alarm Voltage
Outputs
U Double Sided Charts with
Magnetic Mount Hub
U Benchtop or Wall Mount
with Built-In Chart Lights
U Powered by 4 D Batteries
or Universal AC Adaptor
U Data Logging PC
Software Included
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. Depending on your
application, the CTXL is available to
measure ambient temperature and
humidity (with an available wireless
option capable of up to 90 m (300')
(line of sight), dual thermocouple,
dual process (1 V, 5 V, 10 V, or
0/4 to 20 mA), or pH/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
S-37
CTXL-TRH recorder
shown smaller than
actual size.
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, 4 “D” cell alkaline batteries,
RS232 cable and adaptor, software
CD, wall mounting kit, and operator’s
manual. CTXL-TRH models are
also supplied with sensor probe and
clip, and 1.8 m (6') probe extension
cable.
† Refer to accessories chart for NIST
calibration ordering information.
Temperature/Relative
Humidity Recorder
Large 200 mm
(8") 2-Sided
Chart
MODEL #1
CTXL-TRH
†
Optional
PATENTS PENDING
U -17 to 49°C (2 to 120°F)
and 2 to 98% RH Ranges
U Detachable Sensor Probe
for Direct Attachment or
Remote Mounting
U Available Wireless
Sensor Model
U Windows-Based PC
Data Logging Software
Included
U Specialty Chart
Papers Available for
Custom Applications
U Benchtop or Wall Mount
with Built-In Chart Lights
The CTXL–TRH recorder is
designed for both local and remote
monitoring of temperature and
relative humidity. The standard
sensor probe clips to the side of
the unit, or may be detached and
mounted up to 12 m (40') away,
using available extension cables. For
even longer distances, the recorder
is available with a wireless probe,
which can be placed up to 90 m
(300') line of sight, or 33 m (110')
indoors away from the recorder.
Simply plug-in the wireless receiver
in place of the probe into the
recorder, and you’re ready to go.
The CTXL-TRH is available with
specialty paper charts, with optimal
ranges marked right on the chart, so
you can easily see from a distance
that the temperature and humidity
readings are within range.
The CTXL-TRH comes with
a Windows-based application
program that allows the user to
monitor the temperature and relative
humidity using their PC. You can
log the data to a file, as well as
display the information on a custom
on-screen chart; set the alarms
on the recorder, and display their
status on-screen. You can also
re-scale the recorder chart paper,
setting temperature and %RH limits
anywhere within the range of the
unit. This allows you to use the 8"
chart to display narrow temperature
and humidity bands, for greater
resolution.
Specifications
(See Common Specifications on
Page S-44)
Temperature:
Range: -17.7 to 49°C (0 to 120°F)
Display Accuracy: ±1°C (2°F)
Chart Accuracy: ±1.5°C (3°F)
Display Resolution: 0.1° (F or C)
S-38
Choice of White
or Gray to Meet
Your Needs!
CTXL-TRH recorder, shown
smaller than actual size.
Relative Humidity:
Range: 0 to 98% RH
Display Accuracy: ±3% RH, 15 to 90%
RH @ room temperature; ±5% RH, <15
or > 90% RH @ room temperature
Chart Accuracy: ±4% RH, 15 to 90%
RH, ±6% RH, <15 or >90% RH
Display Resolution: 1% RH
Remote Probe:
12.2 m (40') max distance
Temperature/Humidity Sensor:
Digital sensor
Probe Disconnect: Pens will go to the
Home position; Display will show “Prb
Err”. Chart motor will continue to run
Alarm Set Point Resolution:
Temperature: 0.5°C or °F
Humidity: 1%RH
Alarm Deadband:
Temperature: 0.5°C or °F
Humidity: 3% RH
† Refer to accessories chart for NIST calibration
ordering information.
S
Large 200 mm
(8") 2-Sided
Chart
MODEL #2
CTXL-TRH-W
U Record Temperature/
Humidity with Remote
Wireless Probe
U RF Range 90 m (295')
Line of Sight and 33 m
(108') Indoors
U 1, 7 or 32 Day Recording
U
Easy to Read Dual Channel
Backlit LCD Readout
U Convenient Front Panel
Programming/Operation
U Monitor Min/Max/Avg
Values
U High/Low Audible/
Visual Alarms
U Dual High Alarm Relays,
Dual Low Alarm Voltage
Outputs
U Double Sided Charts with
Magnetic Mount Hub
U Benchtop or Wall Mount
with Built-In Chart Lights
U Powered by 4 “D”
Batteries or Universal
AC Adaptor
Specifications
(See Common Specifications on
Page S-44)
Transmitter
Transmit Sample Rate:
2 sec up to 2 min
Radio Frequency: ISM 915 MHz or
ISM 868 MHz
Approvals:
CTXL-TRH-(*)-W9: FCC, Class A
CTXL-TRH-(*)-W8: CE
RF Link Range:
Outdoor Line of Sight: Up to 90 m (300')
Indoor/Urban: Up to 33.5 m (110')
Computer Interface:
USB, to change transmit interval,
frequency and channel ID
Operating Ambient: -18 to 49°C
(0 to 120°F), 2 to 98% RH
LED Indicators: Red LED for Low
Battery and other communication error
indications; Green LED for transmit
indication
Power: One 3.6 Vdc “AA” Lithium
Battery, 2400 mAH capacity, or optional
ac adaptor, UNI-AC-100/240-5V
PATENTS
PENDING
†
Optional
Choice of White
or Gray to Meet
Your Needs!
Wireless
Transmitter—Up
to 90 m (300') from
Recorder
Remote wireless
temperature/humidity
transmitter, included,
shown smaller than
actual size.
CTXL-TRH-W-W9 temperature/
humidity recorder with remote
wireless transmitter, shown
smaller than actual size.
Operating Ambient: -18 to 49°C
(0 to 120°F), 2 to 98% RH
Battery Life: 1 year typical, at 1 minute
transmission rate
Receiver
Computer Interface:
USB, to change receive interval,
frequency and channel ID
LED indicators: Red LED for comm.
error indications, Green LED for receive
indication
Power: From the CTXL recorder
through the round DIN connector
† Refer to accessories chart for NIST
calibration ordering information.
Application Software Included!
• Monitors Temperature and Humidity
• Line Graph and Store of Readings in
Real Time and Download of Recorded Data
• Set the Line Graph Scales to Auto, Logarithmic,
or Manual
• Re-Scale the Recorder Chart Paper
• Print Line Graphs
to a Printer
S-39
Application
Software
Included
Custom Charts
Available!
To Order Visit omega.com/ctxl for Pricing and Details
Model No. Description Color Wireless
CTXL-TRH-W Temperature/RH recorder White —
CTXL-TRH-G Temperature/RH recorder Gray —
CTXL-TRH-W-(*) Temperature/RH recorder White Y
CTXL-TRH-G-(*) Temperature/RH recorder Gray Y
Specify wireless type: “W9” for USA/Canada (915 MHz) or “W8” for Europe (868 MHz)
Double-sided
chart paper provides
twice the graphical
information. See below for
additional chart information.
*
Double-Sided Charts†
Model No. Description
CT485-CDF 100 charts, 1 day (am/pm), °F
CT485-CDC 100 charts, 1 day (am/pm), °C
CT485-C24F 100 charts, 1 day (24 hr), °F
CTXL-TRH Units Include
120 Double-Sided Charts FREE!
(20 each of 1-day, °F; 1-day, °C;
7-day, °F; 7-day, °C; 32-day, °F;
32-day °C).
Additional charts can be ordered as
1 pack of 100 or 6 packs of 100
(see “Charts” table below left).
CT485-C24C 100 charts, 1 day (24 hr), °C
CT485-CWF 100 charts, 7 day, °F
CT485-CWC 100 charts, 7 day, °C
CT485-CMF 100 charts, 32 day, °F
CT485-CMC 100 charts, 32 day, °C
CT485-CSP 120 charts, 20 each, 1 day (am/pm), 7 day, 32 day,
°F and °C (one included with unit)
†† To order a package of 600 double sided charts, add suffix “-6” to model number for
additional cost.
Double-Sided Specialty Charts (pkg of 20)
To Order Visit omega.com/ctxl for Pricing and Details
Model No. Description Optimal Band Range
CT485-MW(*) Museum/art gallery, 7 day 18.3 to 22.2°C (65 to 72°F), 40 to 50% RH
CT485-MM(*) Museum/art gallery, 32 day 18.3 to 22.2°C (65 to 72°F), 40 to 50% RH
CT485-HW(*) Hospital, 7 day 20 to 23.3°C (68 to 74°F), 40 to 50% RH
CT485-HM(*) Hospital, 32 day 20 to 23.3°C (68 to 74°F), 40 to 50% RH
CT485-LW(*) Lab/clean room, 7 day 20 to 23.9°C (68 to 75°F), 40 to 55% RH
CT485-LM(*) Lab/clean room, 32 day 20 to 23.9°C (68 to 75°F), 40 to 55% RH
CT485-PW(*) Computer room/office, 7 day 18.3 to 23.9°C (65 to 75°F), 45 to 60% RH
CT485-PM(*) Computer room/office, 32 day 18.3 to 23.9°C (65 to 75°F), 45 to 60% RH
Specify temperature units, “C” for °C or “F” for °F.
*
Accessories
Model No. Description
CTXL-PT-(*) Wireless Temperature/Humidity probe transmitter, to retrofit a CTXL-TRH unit
CTXL-PR-(*) Wireless Temperature/Humidity receiver, to retrofit a CTXL-TRH unit
UNIV-AC-100/240-5V Universal (110/240 Vac, 50/60 Hz) 5 Vdc adaptor, to power CTXL-PT externally
UNIV-AC-100/240 Universal (110/240 Vac, 50/60 Hz) 9 Vdc adaptor
CTXL-CABLE-6 1.8 m (6') sensor extension cable (replacement)
CTXL-CABLE-10 3 m (10') sensor extension cable
CTXL-CABLE-25 7.6 m (25') sensor extension cable
CTXL-CABLE-6-S 3 m (10') sensor extension cable
CT485B-CAL-KIT RH calibration kit, 33 and 75% RH salt solutions
CAL-3-CTXL† NIST-traceable calibration
CT485B-MAG Chart magnetic hub
CT485-PS Pen set, one each red and blue pens
CT485-PS-6 Six pen sets, six each red and blue pens
CTXL-RP-W-CAL-3 Temperature/humidity sensor probe (white) with CAL-3 certificate
CTXL-RP-G-CAL-3 Temperature/humidity sensor probe (gray) with CAL-3 certificate
CTXL-RP-W Temperature/Humidity sensor probe (white)
CTXL-RP-G Temperature/Humidity sensor probe (gray)
CT485B-CLIP-KIT Sensor clip kit
OM-NOMAD-BATT 3.6V “AA” lithium replacement battery for CTXL-PT wireless transmitter
* Specify wireless type: “W9” for USA/Canada (915 MHz) or “W8” for Europe (868 MHz). To retrofit a CTXL-TRH recorder with wireless
capability, one transmitter (CTXL-PT) and one receiver (CTXL-PR) are required.
Each unit comes complete with sensor probe and clip, 120 assorted double-sided charts, 2 pen sets, 1.8 m (6') remote sensor cable, wall mount
kit, 4 “D” cell batteries, RS232 cable and adaptor, software CD, universal (110/240 Vac, 50/60 Hz) 9 Vdc adaptor, and operator’s manual.
Ordering Example: CTXL-TRH-W-W9, white temperature/relative humidity recorder with remote/wireless probe, CT485-CWF, chart paper
(100 double sided sheets, 7 day, °F), and OCW-3, OMEGACARESM extends standard 2-year warranty to a total of 5 years.
S-40
S
Dual Input Process Recorder
Large 200 mm
(8") 2-Sided
Chart
MODEL #3
CTXL-DPR
†
Optional
U Models Available for
Voltage or Current Input
U Voltage Models Selectable
for 1, 5 or 10V Inputs
U Current Models
Selectable for 0 to 20 or
4 to 20 mA Inputs
U ±1% FS Display Accuracy
U Windows® Based PC
Data Logging
Software Included
U Benchtop or Wall Mount
with Built-In Chart Lights
U Data Logging PC
Software Included
The CTXL-DPR is a dual input
process recorder, available with
either voltage or current inputs. Both
input channels are set to the same
input range; the voltage input model
has selectable ranges of 0 to 1,
0 to 5 and 0 to 10V, while the
current model is selectable between
0 to 20 and 4 to 20 mA ranges.
Standard charts are scaled for 0 to
100%; the user can also scale the
chart paper to show a portion of the
full range.
Specifications
(See Common Specifications
on Page S-44)
Input Types: Process voltage
(DPR-V) or current (DPR-I)
Input Connection: mini DIN connector
Input Ranges: Both input channels
configured to same input range
CTXL-DPR-V: 0 to 1V, 0 to 5V or
0 to 10V
CTXL-DPR-I: 4 to 20 mA or
0 to 20 mA
Display Accuracy: ±1.0%FS
Standard Chart Scale: 0 to 100%
Out of Range Input: Display will flash.
Chart motor will continue to run
Alarm set point Resolution: 1%
Alarm Deadband: 3%
Excitation Voltage: 15Vdc @ 50 mA
Choice of White
or Gray to Meet
Your Needs!
PATENTS
PENDING
For the Complete
Selection of OMEGA
CTXL-DPR recorder, shown
smaller than actual size.
Pressure Transducers
Visit omega.com/
px309
To Order Visit omega.com/ctxl for Pricing and Details
Model No. Description Color Input
CTXL-DPR-W-V Dual input process recorder White Voltage
CTXL-DPR-G-V Dual input process recorder Gray Voltage
CTXL-DPR-W-I Dual input process recorder White Current
CTXL-DPR-G-I Dual input process recorder Gray Current
Double-Sided Charts
Model No. Description
CTXL-DPR-CD 100 charts, 1 day (am/pm), 0 to 100%
CTXL-DPR-CW 100 charts, 7 day, 0 to 100%
CTXL-DPR-CM 100 charts, 32 day, 0 to 100%
CTXL-CSP-P 120 charts, sample pack (one included with unit)
Accessories
Model No. Description
CAL-3-CTXL
UNIV-AC-100/240 Universal 9 Vdc adaptor
CTXL-CABLE-6-S 1.8 m (6') analog input extension cable,
stripped leads termination
CT485-PS Pen set, one each red and blue pens
CT485-PS-6 Six pen sets, six each red and blue pens
Each unit comes complete with 120 assorted double-sided charts, 2 pen sets, 1.8 m (6') input
cable, wall mount kit, 4 “D” cell batteries, RS232 cable and adaptor, software CD, universal ac
adaptor, and operator’s manual.
Ordering Example: CTXL-DPR-W-V, white dual voltage input recorder, CTXL-DPR-CW,
chart paper (100 double-sided sheets, 7 day, 0 to 100%).
†
NIST-traceable calibration
S-41
Dual Input Thermocouple Recorder
MODEL #4
CTXL-DTC
†
Optional
U User Selectable for
J, K or T Type
Thermocouple Input
U Universal Thermocouple
Connector Compatible
with Standard and
Miniature Connectors
U Up to ±1.5°C (2.7°F)
Display Accuracy
U Benchtop or Wall Mount
with Built-In Chart Lights
U Data Logging PC
Software Included
The CTXL-DTC is a dual input
thermocouple recorder, both input
channels are set to the same
calibration; the user can select
either J, K or T type thermocouple
calibration. Input connections
are via UST type universal
thermocouple connector that is
compatible with both standard (type
OST) and miniature (type SMP)
thermocouple connectors.
The recorder comes with standard
chart papers for J, K, and T Type
thermocouple inputs. The blank
chart paper can be used to re-scale
the chart paper within the operating
chart scale.
Specifications
(See Common Specifications
on Page S-44)
Input Types: Dual J, K, or T
thermocouple; user programmable
from PC
Input Connection: Universal connector,
compatible with both standard (type
OST) and miniature size (type SMP)
thermocouple connectors
Display Range:
Type J: -100 to 700°C
(-148 to 1292°F)
Type K: -100 to 1000°C
(-148 to1832°F)
Type T: -100 to 300°C
(-148 to 572°F)
PATENTS
PENDING
Choice of White
or Gray to Meet
Your Needs!
CTXL-DTC
recorder,
shown smaller
than actual size.
Large 200 mm
(8") 2-Sided
Chart
Display Accuracy:
Type K: ±2°C (4°F)
Types J and T: ±1.5°C (3°F)
Standard Chart Scales:
Type J: -40 to 260°C
(-40 to 500°F)
Type K: -40 to 560°C
(-40 to 1040°F)
Type T: -40 to 160°C
(-40 to 320°F)
Open Thermocouple Input: Pens
will go to the Home position; display
will show “Prb Err”. Chart motor will
continue to run
Out of Range Input:
Display flashes
Alarm Set Point Resolution:
1°C or °F
Alarm Deadband: 3°C or °F
To Order Visit omega.com/ctxl for Pricing and Details
Model No. Description Color
CTXL-DTC-W Dual input thermocouple recorder White
CTXL-DTC-G Dual input thermocouple recorder Gray
Double-Sided Charts
Model No. Description
CTXL-DTC-(*)-CD 100 charts, 1 day (am/pm)
CTXL- DTC-(*)-CW 100 charts, 7 day
CTXL- DTC-(*)-CM 100 charts, 32 day
CTXL-CSP-T
Accessories
Model No. Description
CAL-3-CTXL† NIST-traceable calibration
UNIV-AC-100/240 Universal 9 Vdc adaptor
CT485-PS Pen set, one each red and blue pens
CT485-PS-6 Six pen sets, six each red and blue pens
* Specify chart range: “R1” for -40 to 560°C (-40 to 1040°F), “R2” for -40 to 260°C
(-40 to 500°F), or “R3” for -40 to 160°C (-40 to 320°F)
Each unit comes complete with two SC-GG-K-30-36-PP thermocouples, 120 assorted
double-sided charts, 2 pen sets, wall mount kit, 4 “D” cell batteries, RS232 cable and adaptor,
software CD, universal ac adaptor, and operator’s manual.
Ordering Example: CTXL-DTC-G, gray dual thermocouple input recorder, CTXL-DTC-R1-CW,
chart paper [100 double-sided sheets, 7 day, -40 to 560°F (-40 to 1040°F) range].
150 charts, sample pack (one included with unit)
S
S-42
pH/Temperature Recorder
MODEL #5
CTXL-PH
†
Optional
U Record pH with
Automatic Temperature
Compensation
U Standard BNC pH
Electrode Connector
U Pt100 RTD Temperature
Sensor ATC
U Benchtop or Wall Mount
with Built-In Chart Lights
U Data Logging PC
Software Included
The CTXL-PH is a high accuracy
pH and temperature recorder,
compatible with any standard pH
electrode. The CTXL-PH also
measures temperature from a pH
electrode with built-in Pt100 RTD
sensor for automatic temperature
compensation for pH measurement.
Standard charts feature 0 to 12 pH
and 0 to 120°C ranges, while the
recorder can display 0 to 14 pH and
0 to 100°C on the digital readout.
The user can also scale the chart
paper to show a portion of the full
ranges, ie, from 6 to 8 pH and from
50 to 75°C, for greater resolution.
Specifications
(See Common Specifications on
Page S-44)
pH Input:
Connection: BNC connector
Display Range: 0 to 14 pH
Chart Scale: 0 to 12 pH
Accuracy: 0.1 pH, chart and display
Resolution:
Chart Paper: 0.1 pH
Display: 0.01 pH
Input Impedance: 10
Automatic Temperature:
Compensation: 0 to 100°C
(32 to 212°F)
Temperature Input
Input: Pt100 RTD, 0.00385 curve
Connection: Terminal block
Display Range: 0 to 100°C
(32 to 212°F), chart and display
Chart Scale: 0 to 120°C
Accuracy: 1°C, chart and display
Resolution:
Chart Paper: 1°
Display: 0.1
12
Ω, typical
PATENTS PENDING
To Order Visit omega.com/ctxl for Pricing and Details
Model No. Description Color
CTXL-PH-W pH/temperature recorder White
CTXL-PH-G pH/temperature recorder Gray
To form a complete system, add pH electrode (listed in accessories).
**
Double-Sided Chart
Model No. Description
CTPH-CDC 100 charts, 1 day (am/pm), 0 to 12 pH/0 to 120°C
CTPH-CWC 100 charts, 7 day, 0 to 12 pH/0 to 120°C
CTPH-CMC 100 charts, 32 day, 0 to 12 pH/0 to 120°C
CTPH-CSP 120 charts, sample pack (one included with unit)
Accessories
Model No. Description
PHE-7352-15-PT100
PHE-6510
PHE-6511
PHE-1311 General purpose pH electrode
PHA-4 4 pH buffer solution, 475 ml bottle
PHA-7 7 pH buffer solution, 475 ml bottle
PHA-10 10 pH buffer solution, 475 ml bottle
UNIV-AC-100/240 Universal 9 Vdc adaptor
CAL-3-CTXL
CT485-PS Pen set, one each red and blue pens
CT485-PS-6 Six pen sets, six each red and blue pens
Each unit comes complete with 120 assorted double-sided charts, 2 pen sets, wall mount kit,
4 “D” cell batteries, RS232 cable and adaptor, software CD, universal ac adaptor, temperature
compensation resistor and operator’s manual.
pH Electrode sold separately.
Ordering Examples: CTXL-PH-W, white pH/temperature recorder, PHE-6510, submersible pH
electrode (CPVC) and PHEH-65-10-PT100, mounting assembly with 100 Ω Pt RTD automatic
temperature compensation. For more information visit omega.com/phe-6510
Heavy-duty pH electrode with Pt100 RTD
temperature sensor
Submersion pH electrode, CPVC (mounting assembly
required), visit omega.com/phe-6510
Submersion pH electrode, PVDF (mounting assembly
required), visit omega.com/phe-6510
†
NIST-traceable calibration
pH electrode and
CTXL-PH, pH/
temperature
recorder, shown
smaller than
actual size.
buffer solution
sold separately.
Large 200 mm
(8") 2-Sided
Chart
Choice of White
or Gray to Meet
Your Needs!
S-43
Keypad Buttons
Clock – Display Time & Date for
3 seconds
▼
▼
°C °F – Toggle Temperature Units
(Temp units)
Scale – Sets the Chart Scale for
°C or °F (Temp units)
Speed – Sets Chart Speed for 1, 7 or
32 Day Operation
Config – Enter Configuration Menu
Set – Enable/Disable Alarms
▲ Yes – Increase Set Value
▼ No – Decrease Set Value
Mode – Display Min, Max, Average;
also T1-T2 (thermocouple model)
Light – Chart Light and Display
Backlight Switch
White Box – User Lockout
Common Specifications
Display: Custom, 4-digit, dual LCD
with backlight
Display Sampling Rate: 2 sec
Display Modes: Max, min, avg, T1 – T2
Chart Response Time: 0.5, 3.5, 16 min
for 1, 7, and 32 days, respectively
Keypad Response: 350 ms
Chart Paper: 203 mm (8") circular,
linear radial divisions, double sided
Chart Drive:
Type: Stepper motor
Accuracy: 1% rotation
Chart Hold-Down: Magnetic hub
Pen Drive:
Type: Stepper motor, linear screw drive
Deadband: 0.5°C or °F and 3% RH
Pen Lift: Automatic on door opening—
pens are door mounted and swing
clear of the chart when door opens
Clock: Time (24 hr clock) and date
Clock Battery Backup: Holds clock
information for 14 days when main
power is removed
Audible Alarm: Piezoelectric beeper
Alarm Outputs:
Relay Contacts: Two, rated 2 A @
30 Vdc (high alarm)
Voltage Output: Two, rated 100 mA
to drive an external relay (low alarm)
Operating Ambient: 0 to 49°C
(32 to 120°F); 2 to 98% RH
Power: 4 “D” alkaline batteries and
ac adaptor (included)
Battery Life: 3 months under
normal conditions
AC Adaptor: 100 to 240 Vac input,
9 Vdc @ 1.7 A output
Battery Status: Indicator on LCD;
shows 100, 75%
CTXL-DPR PC Application
CTXL-PH PC Application
CTXL-DTC PC Application
Serial PC Communications: RS232,
2-way, 9600 baud
Memory: 256K EEPROM (2.8 chart
revolutions worth of data)
Lock/Unlock (White Box) Key:
Press and hold for 3 seconds to enable/
disable; when in lock mode, all keys
are inactive except for the power, light,
mode, clock and lock/unlock keys
CTXL-TRH–Temperature/Humidity
Local Display
CTXL-DPR–Dual Process
Local Display
CTXL-PH–pH & RTD
Local Display
CTXL-DTC–Dual
Thermocouple
Local Display
Mounting: Keyhole slots for wall
mounting; foot cover for bench top use
Case: ABS plastic
Dimensions: 33.5 H x 27.1 W x 6.7 cm D
3
11
(13
⁄
16 x 10
⁄
16 x 2
5
⁄
8")
Weight: Approx. 3.2 kg (7 lb) with
batteries
S
S-44
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