Omega Engineering hot point CL900A Series User Manual Download Page 16

CAUTION:

• Remove all electrical connections and power before attempting any maintenance.

• Never attempt to remove or insert a probe well insert while the probe well is still hot.

1. Pull the probe well insert release pin from the key ring loop, allowing the well

insert clearance for removal. See Figure 2.

2. Remove the probe well insert using the extraction tool (HP-0037). The tool is

first squeezed, inserted into the aperture of the probe well insert (aligning the
pins of the tool with the holes insert). Then relaxed such that the pins separate,
locking into the holes of the insert on either side of the shaft. Pull the pin out
slowly. See Figure 6.

Figure 10.  Removal of Probe Well Insert in CL900A

3.7 Fanning System

The CL900/950 has 2 cooling fans. One is mounted just under the top panel. The
other is mounted just behind the rear panel.

The fans are activated whenever the unit is plugged into a live power outlet.
Regardless of whether the power switch is on, the fan will run for a period of 2
hours or until the power is turned off. The fans will remain on as long as the unit
is turned on. Once the the unit is switched from “ON” 

mode to “STANDBY”

mode the fans will again run for 2 hours. 

Never disconnect the power cord

while the unit is still cooling down. A safety hazard may result and the unit
may get damaged.

Operation

3

3-6

EXTRACTION HOLES

EXTRACTION TOOL

PROBE WELL INSERT

PROBE HOLE

Summary of Contents for hot point CL900A Series

Page 1: ...www omega com e mail info omega com User sGuide NIST MADE IN Shop on line at CL900A CL950A SERIES hot point Dry Block Probe Calibrator TM TM...

Page 2: ...Toll Free 0800 1 66342 e mail info omegashop cz France 11 rue Jacques Cartier 78280 Guyancourt France TEL 33 0 1 61 37 2900 FAX 33 0 1 30 57 5427 Toll Free in France 0800 466 342 e mail sales omega fr...

Page 3: ...3 4 3 4 Changing the Controller Parameters 3 4 3 5 Target Plate Temperature Transition Chart 3 5 3 6 Replacing Probe Well Inserts in the CL900A 3 5 3 7 Fanning System 3 6 3 8 Overhead Reset Switch 3 7...

Page 4: ...CL950A 230 Probe Well 2 1 6 Front Panel 3 1 7 Back Panel 3 3 8 Controller Menu Hierarchy Showing Factory Default Parameters Settings 3 4 9 Approximate Target Plate Temperature Transition Times Chart...

Page 5: ...ain power cord before attempting any maintenance or fuse replacement Do not connect and or operate this unit to a non grounded non polarized outlet or power source Do not connect the serial port or re...

Page 6: ...int and actual temperature are displayed simultaneously Temperature can be set in one degree increments from 22 C 40 F above ambient temperature to 482 C 900 F The CL900A differs from the CL950A only...

Page 7: ...ndard metric holes with diameters 2 mm 3 mm 4 5 mm and 6 mm x 2 with 152 4 mm hole depth Figure 4 CL950A Probe Well Figure 5 CL950A M Probe Well Probe Well Inserts with Inch Sizes Probe Well Inserts w...

Page 8: ...CL900A CL950A SERIES 1 1 4 NOTES...

Page 9: ...n and operate at least ten inches from any air obstructions to the fan front panel rear panel bottom and top of the unit in an ambient environment between the specified 5 C to 38 C 40 F to 100 F 2 3 A...

Page 10: ...ational 230 VAC 50 60 Hz models On CL900A 230 CL950A 230 models an International style power cord with the proper color code and approvals is provided with stripped wire ends for connection to the pro...

Page 11: ...rol algorithm used in high end temperature controllers The controller causes the process to attain the desired temperature by turning the process on or off The process may be a heater or refrigerator...

Page 12: ...r 3 seconds initially to access the programming mode Once in the programming mode momentarily press this key to scroll through the menus Raise Key Momentarily press to increase the selected parameter...

Page 13: ...an will turn on immediately when entering the ON mode Once the calibrator is no longer being used and the switch is placed in the STANDBY mode the unit is powered down except for the fan circuit The f...

Page 14: ...b programming procedure In the event that some parameters have accidentally been changed use the factory default settings shown below NOTE Changing any other parameter settings besides the engineerin...

Page 15: ...rent probe well inserts available for the CL900A CL900A 230 The CL900A is shipped with the CL906 insert diameter 1 4 depth 6 and the CL900A 230 is shipped with the CL906 M insert diameter 4 5 mm depth...

Page 16: ...f the shaft Pull the pin out slowly See Figure 6 Figure 10 Removal of Probe Well Insert in CL900A 3 7 Fanning System The CL900 950 has 2 cooling fans One is mounted just under the top panel The other...

Page 17: ...one or both of the fans fail and the temperature inside the unit raise to an unacceptable level a thermal cutoff switch will disconnect the heater power The controller will still display the desired...

Page 18: ...rom the unit 4 2 3 Fan and Vent Guards The fan guard and vent guards should be cleaned as a minimum annually A medium power vacuum cleaner with a brush attachment is recommended 4 3 Fuse replacement W...

Page 19: ...e CL900A and the computer must be communicating with the same serial communications parameters to establish a working communication link The serial communications feature can be tested using terminal...

Page 20: ...case R To read a parameter from the controller M To temporarily modify a controller parameter lost upon shutdown E To modify a controller param in non volatile mem saved even after shutdown parameter...

Page 21: ...in from 38 C to 398 C from 100 F to 750 F Temperature Uniformity Within the Bottom 1 of the Test Well CL900A W 6 Well Inserts 0 3 rdg CL900A W 4 Well Inserts 0 4 rdg CL950A 0 3 rdg Max Probe Immersion...

Page 22: ...nit requires service contact our customer service department d Unit has been operated above ambient temperature operating range Safety cutoff switch has disabled heater Unit should be sent back to fac...

Page 23: ...chart so that its reading can be correlated to the actual value being measured IEC International Electrotechnical Commission NIST National Institute of Standards and Technology PID Proportional Integr...

Page 24: ...ce Calibration Range 32 to 400 C 90 to 752 F Accuracy 1 4 C 2 5 F Emissivity 0 95 Ambient Temp 0 to 40 C 32 to 104 F Cavity Size 28 6 mm 1 125 in Power 115 230V 50 60 Hz 175W BB704 4 Target Plate Blac...

Page 25: ...NOTES CL900A CL950A SERIES 9 2...

Page 26: ...NOTES CL900A CL950A SERIES 9 3...

Page 27: ...shall not exceed the purchase price of the component upon which liability is based In no event shall OMEGA be liable for consequential incidental or special damages CONDITIONS Equipment sold by OMEGA...

Page 28: ...city Indicators Turbine Paddlewheel Systems Totalizers Batch Controllers pH CONDUCTIVITY pH Electrodes Testers Accessories Benchtop Laboratory Meters Controllers Calibrators Simulators Pumps Industria...

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