Omega BB702 User Manual Download Page 17 | Manualshive

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Omega BB702 User Manual Download Page 17

Section 6 - Reference Probe

An electrically isolated 100Ω Class A RTD probe has been embedded into the

target plate heater assembly to be used as a reference. This feature is commonly

used in conjunction with a precision thermometer, ohmmeter or temperature

recording device. The maximum current being passed through the RTD should

never exceed 0.3 mA (constant DC). A connector has been provided with your

calibrator for connection to this reference probe. Notice that at each temperature,

a given resistance will be measured at the reference port. The resistance is

measured across PIN1-PIN2 or across PIN1-PIN3. PIN2 and PIN3 are connected

to the same side of the RTD.

Figure 9. Internal Reference Probe Connections

6-1

BB702 Reference Probe

6

TARGET PLATE ASSEMBLY

RTD REFERENCE PROBE

REFERENCE
PROBE
CONNECTOR

BLACK WIRE

1

2

3

RED WIRE

BLACK WIRE

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Summary of Contents for BB702

Page 1: ...e mail info omega com For latest product manuals www omegamanual info BB702 Blackbody Calibrator Shop online at omega com User sGuide TM ...

Page 2: ...specifications without notice omega com info omega com Servicing North America U S A Omega Engineering Inc Headquarters Toll Free 1 800 826 6342 USA Canada only Customer Service 1 800 622 2378 USA Canada only Engineering Service 1 800 872 9436 USA Canada only Tel 203 359 1660 Fax 203 359 7700 e mail info omega com For Other Locations Visit omega com worldwide ...

Page 3: ...3 Changing the Temperature Setpoint 3 3 3 4 Changing the Controller Parameters 3 3 3 5 Heat Up Cool Down Cycle Times 3 5 3 6 Overheat Reset Switch 3 5 Section 4 Serial Communication 4 1 Section 5 Maintenance 5 1 5 1 Calibration 5 1 5 2 Cleaning 5 1 5 2 1 Main Body 5 1 5 2 2 Target Plate 5 1 5 2 3 Fan 5 1 5 3 Fuse Replacement 5 1 Section 6 Reference Probe 6 1 Section 7 Specifications 7 1 Section 8 ...

Page 4: ... 3 Front Panel 3 1 4 Back Panel 3 2 5 Menu Hierarchy Showing Factory Default Settings 3 4 6 Programming Procedure 3 4 7 Heat Up Cool Down Cycle Time Table 3 5 8 Connecting the BB702 to a Computer s Serial Port 4 1 9 Internal Reference Probe Connections 6 1 ii BB702 Blackbody Calibrator Table of Figures ...

Page 5: ...re connecting to device and powering up Remove and or disconnect main power 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 reference probe port to equipment with exposed hazardous live voltages Any connections to the serial port or reference port should be made wi...

Page 6: ...ision PID digital controller The calibrator is used to test and calibrate infrared pyrometers The 2 5 inch Diameter target plate has an emissivity of 0 95 and can be set to any temperature between ambient 11 to 215 C ambient 20 to 420 F Caution risk of electric shock Caution refer to accompanying documents Caution hot surface 230 VAC 50 60Hz European Models 115 VAC 50 60Hz Domestic Models ...

Page 7: ...f in a horizontal position 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 to 45 C 41 to 113 F 2 3 Ambient Temperature The target plate of the BB702 can achieve any temperature within the specified tem perature range when being operated in ambient temperature up to 32 2 C 90 F W...

Page 8: ... with stripped wire ends for connection to the proper connector used in your country or local area this connector is not provided Line voltage variations are not to exceed 10 of the rated input voltage Electrical connections and wiring should be performed only by suitably trained personal To shut down the unit in an emergency the power cord can be disconnected from the AC outlet on the rear of the...

Page 9: ...arget plate depends on the field of view of the pyrometer If the pyrometer is too far away it will scan unwanted surfaces outside of the perimeter of the target plate Holding the pyrometer too close could introduce undesirable heat to the IR detector of the pyrometer The BB702 s target plate can be set to very high temperatures Exercise extreme caution when operating the unit Keep hands and finger...

Page 10: ...ntation of the process status through LED indicators An indicator may be lit continuously blink or shut off entirely to indicate that the process is on being pulsed or off respectively Parameter Access Key Press to scroll through menu parameters Raise Key Press to increase the selected parameter or scroll upward in the list of possible settings Lower Key Press to decrease the selected parameter or...

Page 11: ...r display indicates the blackbody target plate temperature known as PV Process Variable while the lower display indicates the programmed setpoint known as SV Setpoint Variable Making changes to the setpoint units of measure and communication settings are made via the and keys Holding a key in continuously will cause the setpoint temperature to advance more quickly to a desired value Three scanning...

Page 12: ...r Settings 1 Press the key to enter the programming mode The lower display will alternately display the menu level and Ac Cd 2 Use the and keys to change to the desired menu level 3 Once you have chosen the desired menu use the key to scroll through the parameters To change the setting of a given parameter use the and keys 4 To save settings press the key The controller now exits the programming m...

Page 13: ...d ambient temperatures an overheat condition may occur In an overheat situation a mechanical reset switch near the right handle hinge will pop and open the heater circuit The controller will still have power While the controller will be demanding heat from the heater the process temperature will fall continuously until it equalizes with the room temperature If an overheat condition occurs let the ...

Page 14: ... should be modified or queried via the serial port Other parameters should be viewed or queried from the controller directly It is highly recommended that baud rate for the controller be modified on the controller directly Note that both the BB702 and the computer must be communicating with the same serial communications parameters to establish a working communication link The serial communication...

Page 15: ... 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 Up to 2 numeric characters 00 to 99 new value This control word is used only when entering or modifying a parameter Up to 6 characters may be entered The first character can be a space a or a The nex...

Page 16: ... performance of your unit 5 2 3 Fan The fan filter should be cleaned monthly as a minimum by washing the filter with warm water and then blowing dry with air It can be removed by firmly pulling the black plastic frame outward The internal protective grill that is seated against the fan can be cleaned with a soft bristle brush 5 3 Fuse replacement Disconnect all power from source before attempting ...

Page 17: ...D should never exceed 0 3 mA constant DC A connector has been provided with your calibrator for connection to this reference probe Notice that at each temperature a given resistance will be measured at the reference port The resistance is measured across PIN1 PIN2 or across PIN1 PIN3 PIN2 and PIN3 are connected to the same side of the RTD Figure 9 Internal Reference Probe Connections 6 1 BB702 Ref...

Page 18: ...ize 63 5 mm 2 5 Target Plate Emissivity 0 95 Internal Control Sensor Platinum RTD Class A Alpha 0 00385 Reference Sensor Platinum RTD Class A Alpha 0 00385 Warm up Time See Figure 7 Section 3 5 Cool down Time See Figure 7 Section 3 5 Power BB702 115 VAC 50 60 Hz 75W BB702 230VAC 230 VAC 50 60 Hz 75W Dimensions 152 x 305 x 280 mm 6 H x 12 W x 11 L Weight 7 2 kg 16 lb Installation Category II Refere...

Page 19: ...res service contact our and the target will not get hot customer service department 4 Cavity cone temperature will not a Verify that the controller is set to its stabilize to within 2 F of the factory default settings setpoint temperature b Unit requires service contact our customer service department 5 Unable to communicate with the a Check that you have made the proper unit through the RS232 wir...

Page 20: ...g measured Emissivity The ratio of energy emitted by a surface to the energy emitted by a blackbody at the same temperature IEC International Electrotechnical Commission Infrared IR A range of the electromagnetic spectrum extending beyond red visible light from 760 nanometers to 1000 microns PID Proportional Integral Derivative A three mode control action where the controller has time proportionin...

Page 21: ... 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 Blackbody Calibration Source Calibration Range 100 to 400 C 212 to 752 F Accuracy 0 8 C 1 4 F Emissivity 0 95 Ambient Temp 0 to 50 C 32 to 122 F Cavity Size 101 6 mm 4 in Power 115 230V 50 60 Hz 425W BB705 Laboratory Grade Blackbody Calibration Sou...

Page 22: ...NOTES 10 10 ...

Page 23: ...GA 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 This WARRANTY is VOID if the unit shows evidence of having been tampered with or shows ...

Page 24: ...rs M U Turbine Paddlewheel Systems M U Totalizers Batch Controllers pH CONDUCTIVITY M U pH Electrodes Testers Accessories M U Benchtop Laboratory Meters M U Controllers Calibrators Simulators Pumps M U Industrial pH Conductivity Equipment DATA ACQUISITION M U Communications Based Acquisition Systems M U Data Logging Systems M U Wireless Sensors Transmitters Receivers M U Signal Conditioners M U Da...

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