Table of Contents
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Microprocessor-Based Temperature
H35 T2
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°C
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CT485B-1 10V-G-AL,
CT485B-220V-G-AL,
CT485B-1 10V-W-AL,
CT485B-220V-W-AL
and Humidity Recorder
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High Performance
User' s Guide
Shop online at
www.omega.com
e-mail: info@omega.com
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Table of Contents
Related Manuals for Omega CT485B-110V-G-AL
Summary of Contents for Omega CT485B-110V-G-AL
- Page 1 User’ s Guide H35 T2 °C °F H O TO Shop online at www.omega.com e-mail: info@omega.com CT485B-1 10V-G-AL, CT485B-220V-G-AL, CT485B-1 10V-W-AL, CT485B-220V-W-AL High Performance Microprocessor-Based Temperature and Humidity Recorder...
- Page 2 Toll Free in United Kingdom: 0800-488-488 e-mail: sales@omega.co.uk It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that apply. OMEGA is constantly pursuing certification of its products to the European New Approach Directives. OMEGA will add the CE mark to every appropriate device upon certification.
- Page 3 Department will issue an Authorized Return (AR) number immediately upon phone or written request. Upon examination by OMEGA, if the unit is found to be defective, it will be repaired or replaced at no charge. OMEGA’s WARRANTY does not apply to defects resulting from any action of the purchaser, including but not limited to mishandling, improper interfacing, operation outside of design limits, improper repair, or unauthorized modification.
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Page 4: Table Of Contents
High Performance Microprocessor-Based TABLE OF Temperature/Humidity Recorder with Remote Sensor CONTENTS Page Chapter 1 Introduction ............... 1-1 Parts of the Recorder - Front and Side Views ........1-2 Parts of the Recorder - Rear View ............1-4 Chapter 2 Setting Up the Recorder ............. 2-1 Placing the Recorder on the Bench Top .......... - Page 5 High Performance Microprocessor-Based TABLE OF Temperature/Humidity Recorder with Remote Sensor CONTENTS Page Chapter 6 Using the Cal-Lock Kit ............6-1 Chapter 7 Using the Voltage Input Adapter (Optional) ......7-1 Chapter 8 Maintaining the Recorder ..........8-1 General Considerations ............... 8-1 Light Bulb, Display Backlighting and Push Button Information ..
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Page 6: Chapter 1 Introduction
Introduction This Electronic Temperature and Humidity Chart Recorder with Remote Sensor is an advanced micro computer controlled measuring and recording instrument. The recorder affords precision rapid response, memory and display of peak readings, remote sensing, recording flexibility and simplicity of operation. This compact, portable instrument offers advanced features previously unavailable in its price range. -
Page 7: Parts Of The Recorder - Front And Side Views
Introduction 1.1 Parts of the Recorder - Front and Side Views H35 T2 HIGH SET LOW °C °C °F °F ALARM CHART TYPE FRONT VIEW SIDE VIEW Figure 1-1. Front and Side Views of the Recorder Item Description Function Chart Paper Knob (magnetic) Holds chart paper in place. - Page 8 Introduction Item Description Function ac Power Jack Allows the unit to be powered from ac power using the ac adaptor (110Vac stepped down to 9Vdc) supplied. Power Switch Turns unit ON (|) or OFF (O). °C/°F Mode Switch Selects °C or °F chart operation. Note the following : When switching from °C to °F, ONLY the humidity pen will move.
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Page 9: Parts Of The Recorder - Rear View
Introduction 1.2 Parts of the Recorder - Rear View H35 T2 Foot Cover Removed Figure 1-2. Rear View Item Description Function “Keyhole” Slot Mounting Holes Allows the recorder to be mounted on the wall. Carrying Slot Allows the user to carry the recorder conveniently. Product Label Product information label. -
Page 10: Chapter 2 Setting Up The Recorder
Setting Up the Recorder Now that you have learned about the different parts of the recorder, you can set it up. Determine whether you want the recorder wall mounted or sitting on a bench top. 2.1 Placing the Recorder on the Bench Top Figure 2-1 shows the removal of the decorative foot cover. - Page 11 Setting Up the Recorder Swing out the stabilizing arm and extend it towards you. Figure 2-2 shows how to swing out the stabilizing arm. Make sure the slot in the stabilizing arm extends out the rear of the recorder. Swing Figure 2-2.
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Page 12: Mounting The Recorder On The Wall
Setting Up the Recorder 2.2 Mounting the Recorder on the Wall To mount the recorder on the wall, first locate the wall mounting holes using the template provided in the wall mounting kit. Leave the decorative foot cover (Figure 1-1, item #18) in place*. After drilling the holes, insert the wall anchors and put in the screws, leaving ⁄... -
Page 13: Using Batteries
Setting Up the Recorder 2.3 Using Batteries The recorder operates on either four “D” size batteries or on ac power. 110Vac and 220Vac adaptors are available. NOTE In the event of ac power failure, the unit will switch over to battery power automatically. -
Page 14: Connecting Ac Power
Setting Up the Recorder Open the control panel door. Turn the power switch to the OFF or “O” position. Place the recorder on a soft surface front face down. Locate the battery compartment at the bottom. Open the battery compartment door by pressing down firmly on the tabs located along the top edge. -
Page 15: Installing The Chart Paper
Setting Up the Recorder 2.4 Installing the Chart Paper The recorder accepts six different types of chart paper. Charts are available for 1, 7 and 32 day recording times in both Fahrenheit or Celsius versions. Although chart paper replacing is very simple, you must take care to set the appropriate front panel switches for the paper being used. - Page 16 Setting Up the Recorder To change the chart paper: 1a. Table Mounted Recorder: To balance the recorder, fully extend the stabilizing arm at the bottom of the recorder. Refer to Figure 2-8. Continue to Step 2. Figure 2-8. Stabilizing Arm Fully Extended 1b.
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Page 17: Installing And Removing Pens
Setting Up the Recorder H35 T2 HIGH SET LOW °C °C °F °F ALARM CHART TYPE 7:00 PM NOTE: ROTATE CHART PAPER UNTIL PRESENT TIME LINES UP WITH ARROW. Figure 2-9. Changing Chart Paper and Setting the Time 2.5 Installing and Removing Pens 2.5.1 Installing the Pens The recorder uses two different colored pens to record information. - Page 18 Setting Up the Recorder If the pen arms are vertically aligned as shown in Figure 2-11, do the following and then proceed to Step 3. Temperature Humidity Figure 2-11. Vertical Alignment of Pens (pens can’t be inserted) (The pen arms must be offset sufficiently to allow for clearance before insertion or removal is attempted.
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Page 19: Removing The Pens
Setting Up the Recorder Insert the blue pen fully into the lower (humidity) holder and the red pen fully into the upper (temperature) holder. If you installed the pens correctly, you will hear a click as they position themselves in the holders. Figure 2-13 shows how to insert the pens. Close the recorder door. -
Page 20: Installing The Temperature/Humidity Sensor
Setting Up the Recorder At the same time, slide the pen out from the pen holder. Install new pens following Section 2.5.1, Steps 3 through 6. 2.6 Installing the Temperature/Humidity Sensor The temperature/humidity sensor can either be directly attached to the recorder using its own attached short cable or be extended by using the 6 ft remote sensor cable. -
Page 21: Using The Remote Sensor Cable
Setting Up the Recorder 2.6.2 Using the Remote Sensor Cable Connect the end of the cable with the arrow to the short cable on the sensor. Line up the two arrows as shown in Figure 2-16 before mating the two cables. Connect the other end of the remote sensor cable (without the arrow) to the socket at the side of the recorder. -
Page 22: Using The Sensor Clip
Setting Up the Recorder 2.6.3 Using the Sensor Clip An extra sensor clip is provided in the shipping box, so you can hang the sensor in a remote location. Two self-tapping screws are provided for mounting to wood, sheet rock or plastic surfaces. When mounting to wood or sheet rock surfaces, drill two ⁄... - Page 23 Setting Up the Recorder Notes 2-14...
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Page 24: Chapter 3 Powering Up The Recorder
Powering Up the Recorder 3.1 Turning on the Recorder Open the control panel door by gently gripping the recessed area at the right side of the door and slowly pulling down. Turn the recorder on by moving the power switch located on the control panel to the “|”... -
Page 25: Comparing Code Numbers
Powering Up the Recorder 3.3 Comparing Code Numbers The recorder will continue with its initialization process for about another 30 seconds. Locate the code numbers on the sensor calibration label. Refer to Figures 3-5 and 3-6. The two-character Humidity Code you wrote down should match the two-character code following the letter “H “on the label. -
Page 26: Final Display Mode
Powering Up the Recorder 3.4 Final Display Mode After the relative humidity and temperature codes appear, the LCD displays the current relative humidity in %RH or temperature in °F or °C, depending on the position of the display selection switch (refer to Figure 3-8). HIGH SET LOW °C °C... - Page 27 Powering Up the Recorder Notes...
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Page 28: Chapter 4 Alarm Operation
Alarm Operation 4.1 Alarm Description The chart recorder is equipped with an alarm system which is activated when the sensor conditions exceed user-set limits. The system consists of a built-in audible piezo-electric beeper and a set of normally open dry relay contacts for activating an external alarm. -
Page 29: Unlocking/Locking The Control Panel Door
Alarm Operation 4.3 Unlocking/Locking the Control Panel Door To access the Alarm Display Buttons (Figure 1-1, item #10) under the control panel door, you may have to unlock the door. You’ll find the control panel door lock to the left of the control panel. Refer to Figure 4-2. HIGH SET LOW °C °C... -
Page 30: Setting/Changing Alarm Limits
Alarm Operation 4.4 Setting/Changing Alarm Limits To set the alarm limits on the alarm recorder: Set the display selection switch (Figure 1-1, item #12) to %RH, °C, or °F depending on the parameter for which you would like to set the alarm limits. Refer to Figure 3-8 for the location of the switch. -
Page 31: Turning The Alarm Off
Alarm Operation 5b. To change the low alarm limit: • Press and hold the “LOW” button for 4 seconds, then release. ‘lo’ is displayed and then the current low alarm limit is displayed. • Press the “HIGH” or “LOW” button to respectively increase or decrease the value. -
Page 32: Disabling The Alarm
Alarm Operation Unlock the control panel door if necessary. After the alarm becomes activated, the “SET” button must be pressed to disable it. The message “AO” appears in the display. The alarm is disabled for 10 seconds. After 10 seconds, the alarm may activate again, but only if an alarm condition is present. - Page 33 Alarm Operation Notes...
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Page 34: Chapter 5 Calibrating The Recorder
Calibrating the Recorder 5.1 Factory Calibration Information The recorder is factory calibrated during final assembly by calibrating the sensor (shipped with the recorder) to known temperature and humidity standards in an environmental chamber. This technique avoids tracking and positioning errors due to temperature changes and mechanical shock. - Page 35 Calibrating the Recorder A 2-character humidity calibration code should now appear in the display with the first character blinking. Refer to Figure 5-2. Remember, this calibration code must match the code on the sensor probe. °C °F Figure 5-2. Humidity Code - First Character Blinking 5a.
- Page 36 Calibrating the Recorder 8. A single character temperature calibration code should be blinking in the display. Refer to Figure 5-4. If it is not, press the “SET” button again. °C °F Figure 5-4. Blinking Temperature Code 9a. If the temperature code is correct, press the “SET”...
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Page 37: Calibrating Humidity Readings
Calibrating the Recorder 5.3 Calibrating Humidity Readings If you have access to accurate temperature and humidity calibration equipment, you may want to calibrate the instrument on your own as described in this section. Figure 5-5 shows how to set up the calibration equipment. The following flowchart shows the basic path that you should take to calibrate the sensor. - Page 38 Calibrating the Recorder Sensor O-Ring Sealing HIGH SET LOW °C °C °F °F ALARM Remote Saturated CHART TYPE Sensor Solution Cable Note: Do not immerse the tip of the sensor into the saturated solution. Figure 5-5. Calibration Setup Section 5.3.1 discusses how to change the first half of the humidity code which corrects the 33% humidity reading if your recorder does not show 33%.
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Page 39: Humidity Calibration At 33% Humidity
Calibrating the Recorder 5.3.1 Humidity Calibration at 33% Humidity Set up the recorder with the temperature/humidity sensor in a sealed jar (33% RH) using saturated magnesium chloride as shown in Figure 5-5. If you are not experienced with saturated salt solutions, you may not obtain good results. If you are experiencing difficulty, contact our Engineering Department. -
Page 40: Humidity Calibration At 75% Humidity
Calibrating the Recorder 5.3.2 Humidity Calibration at 75% Humidity CASE 1 The 75% reading is too low by n counts, so DECREASE the humidity code by n counts. EXAMPLE 1: you obtain a reading of 72%. The error is -3 since 72 is 3 counts lower than 75%. -
Page 41: Calibrating Temperature Readings
Calibrating the Recorder 5.4 Calibrating Temperature Readings To calibrate temperature, set the instrument to °F (DO NOT USE °C) and place the sensor probe in a known, stable environment between 60°F and 90°F. Read the display after allowing the probe to reach equilibrium after a 15 minute warm-up period. -
Page 42: Chapter 6 Using The Cal-Lock Kit
Using the Cal-Lock Kit The CT485B-CAL-LOCK kit that comes with the CT485B is used to preserve and protect the settings that were entered into the CT485B during the calibration process. The CT485B-CAL-LOCK cover shields the HIGH, SET and LOW calibration buttons to prevent any additional button pressing. This method is more “permanent”... - Page 43 Using the Cal-Lock Kit Notes...
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Page 44: Chapter 7 Using The Voltage Input Adapter (Optional)
Using the Voltage Input Adapter (Optional) Use the optional voltage input adapter to record an external 20mV to 1200mV signal with the temperature pen. When using the Fahrenheit scale chart paper, values between 2° and 120°F correspond to adaptor inputs of 20mV dc to 1200mV dc. - Page 45 Using the Voltage Input Adapter (Optional) Notes...
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Page 46: Chapter 8 Maintaining The Recorder
Maintaining the Recorder 8.1 General Considerations Do not expose the recorder to temperatures Keep the recorder in a dry place. If it other than those stated in the specifications gets wet, wipe the case as soon as (Chapter 11). The recorder can operate in possible to get rid of any moisture. -
Page 47: Light Bulb, Display Backlighting And Push Button Information
Maintaining the Recorder 8.2 Light Bulb, Display Backlighting and Push Button Information You may notice that the light bulbs flicker slightly while the pens are moving. The flickering stops once the pens are stationary. The light bulbs on the chart base of the recorder are long-life specialty bulbs. Even though they last a very long time, they will burn out eventually. -
Page 48: Case Care
Maintaining the Recorder 8.3 Case Care The case, front window and pen arms of the recorder should be cleaned with a mild soap solution. Under no circumstances should you use an alcohol or solvent based cleaner anywhere on this recorder. 8.4 Storage of Chart Paper For optimum performance, store the chart paper in the plastic bag provided. - Page 49 Maintaining the Recorder Notes...
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Page 50: Chapter 9 Troubleshooting The Recorder
Troubleshooting the Recorder Table 9-1 contains a brief troubleshooting guide. Table 9-1. Troubleshooting Guide If this occurs Perform these steps Make sure POWER switch is in the “|” Recorder appears not to (ON) position. function at all. Make sure the ac adaptor is securely plugged into the wall and into the power jack on the recorder. - Page 51 Troubleshooting the Recorder Table 9-1. Troubleshooting Guide (Cont’d) If this occurs Perform these steps Make sure the pens are fresh. Remove a The pens do not appear to pen and test it on a piece of chart p aper. be leaving traces on the Insert new pens if necessary.
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Page 52: Chapter 10 Technical Details
Technical Details 10.1 Sensors and Measurement The recorder has an external plug-in temperature/humidity sensor. A six-foot remote sensor cable is provided to allow remote sensing of both temperature and humidity. Unlike many circular hygrothermographs, this recorder utilizes electronic sensors to measure both ambient temperature and relative humidity. The temperature sensor is a low-power, semiconductor type, with a linear voltage output proportional to temperature. -
Page 53: Chart Paper Drive Mechanism
Technical Details From this point, a count wheel mounted on the lead screw provides positional information relative to the zero position. There are 32 counts for each division on the chart paper. As with all positioning mechanisms, an error may appear in the tracking over a period of time. -
Page 54: Chapter 11 Specifications
Specifications General Measurement Input: Temperature and humidity, with plug-in external sensor Removable for remote location (up to six feet) Temperature Range: 2° to 120°F, –17° to 49°C Accuracy: ±1°C Sensor: Solid State Response Time: 5 minutes for 63% step change Display Resolution: 1°F/1°C Humidity... - Page 55 Specifications Chart Drive Type: Stepper Motor Ranges: 1, 7, 32 day; switchable Accuracy: 1% of rotation Chart Paper Hold Down: Magnetic hub lock Recording Pens Type: Disposable fiber-tip; red for temperature, blue for humidity Pen Drive Type: Motorized linear screw drive Deadband: 1°F, 1% RH Zero:...
- Page 56 Specifications Power (Recorder) Four (4) “D” size alkaline batteries; greater than 1 month continuous operation in 32 day mode; bulbs will not light on battery power. Recommended battery type: Duracell Type MN1300 “D” size batteries for best performance at low temperatures. 110Vac or 220Vac 50/60 Hz stepped down to nominal 9Vdc using ac adaptor provided Power...
- Page 57 Specifications Notes Notes 11-4...
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Page 58: Chapter 12 Sensor Design For Ce Conformity
CE Conformity 12.1 Sensor Design for CE Conformity For CE labelled recorders only, the sensor has been redesigned to meet requirements as outlined in European Community EMC Directive EN50081-1/ EN50082-1. In particular the sensor cap is made from unplated plastic to pass ESD (electro-static discharge) tests. - Page 59 CE Approval Notes 12-2...
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Page 60: Index
Index Chart Paper, Specialty Art Gallery ..Inside Back Cover Computer Rooms ......Accessories ....Inside Back Cover ......Inside Back Cover ac Adapter ..........2-5 Hospitals ..Inside Back Cover ac Power Failure Indication ....8-3 Labs, Clean Rooms ......ac Power Hookup ......... - Page 61 Index Jack, ac power ........1-3 Relative Humidity Code ..... 3-1 Relay/Alarm Contacts ......4-1 Remote Sensor Cable, 6 ft (2 m) ..2-12 Remote Sensor Clip ..2-13, Inside Back ..........Cover Latch Button for Door ......1-3 Removing the Pens ......2-10 LCD Display .........
- Page 62 The following models are available: PART NUMBER DESCRIPTION CT-485B-110V-G-AL Gray, 110Vac, with Alarms and Relay Contacts CT-485B-110V-W-AL White, 110Vac, with Alarms and Relay Contacts CT-485B-220V-G-AL Gray, 220Vac, with Alarms and Relay Contacts CT-485B-220V-W-AL White, 220Vac, with Alarms and Relay Contacts The following consumable items are available: PART NUMBER DESCRIPTION...
- Page 63 Where Do I Find Everything I Need for Process Measurement and Control? OMEGA…Of Course! Shop online at www.omega.com TEMPERATURE Thermocouple, RTD & Thermistor Probes, Connectors, Panels & Assemblies Wire: Thermocouple, RTD & Thermistor Calibrators & Ice Point References Recorders, Controllers & Process Monitors...
- Page 64 X-ON Electronics Largest Supplier of Electrical and Electronic Components Click to view similar products for manufacturer: Newport Other Similar products are found below : WTK-14-36/N TXDIN70 5TC-TT-J-24-72 MSS-08 5SC-TT-K-30-36 OTP-U-F OTP-U-M 5SC-TT-T-30-72 TPJ-U-F SMTC-AL-P MPJ- K-F-ROHS SMPW-CC-T-M PCC-SMP-K/N PCC-SMP-K...