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5128A

Operators Manual

26

Remote Operation

For remote operation of the Product, send ASCII commands through the USB
serial interface. The USB interface appears as a virtual COM port when
connected to a Windows PC.

Set Up

Connect a USB A to B cable between the Product and PC. If this is the first time
the PC has been connected to the Product, you may be prompted to download
and install the drivers for the interface. The drivers are normally part of the
Windows operating system. Windows detects the interface as a virtual COM port.
If Windows is unable to find the driver, contact Fluke Calibration for technical
support. Refer to

Contact Fluke Calibration

.

The default settings on the Product are 9600 baud, 8 data bits, 1 stop bit, no
parity or flow control. These settings cannot be changed.

Remote Commands

To use the USB interface, use the remote commands in Table 8 to communicate
with the Product. When communication is active, the Remote indicator on the
front panel is lit.

Table 8. Remote Commands

Command Read/Write

Function

BOOT

Write

Resets the Product.

HELP

Read

Returns the list of remote commands available.

ID Reads

Returns “Fluke 5128A”, serial number and firmware
revision.

HOFFSET

Read

Returns the value of the humidity offset stored within the
Product.

HOFFSET x.x

Write

Sets the humidity offset used in the Product as part of the
calibration process (% RH).

TOFFSET Read

Returns the value of the temperature offset stored within
the Product (in

°

C) .

TOFFSET x.x

Write

Sets the temperature offset used in the Product as part of
the calibration process.

HREAD

Read

Returns the actual chamber humidity.

TREAD

Read

Returns the actual chamber temperature.

DPREAD

Read

Returns the calculated chamber dew point temperature.

HSET

Read

Returns the humidity set point.

TSET

Read

Returns the temperature set point.

HSET xx.x

Write

Sets the humidity set point to xx.x (% RH).

TSET xx.x

Write

Sets the temperature set point to xx.x (in deg C).

STANDBY

Read

Returns the standby state, either ON or OFF.

STANDBY ON

Write

Puts the Product into its Standby state.

STANDBY OFF

Write

Puts the Product into its normal operating state.

WARMUP Read

Returns status of warmup indication. "On" means that
"Heating" is still on.

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Содержание 5128A

Страница 1: ...cifications are subject to change without notice All product names are trademarks of their respective companies 5128A RHapid Cal Humidity Generator Operators Manual Via Acquanera 29 22100 Como tel 031 526 566 r a fax 031 507 984 info calpower it www calpower it ...

Страница 2: ... nearest Fluke authorized service center to obtain return authorization information then send the product to that service center with a description of the difficulty postage and insurance prepaid FOB Destination Fluke assumes no risk for damage in transit Following warranty repair the product will be returned to Buyer transportation prepaid FOB Destination If Fluke determines that failure was caus...

Страница 3: ...up 8 Unpack and Inspect 8 Product Placement 8 Fill the Product with Distilled Water 9 Mains Voltage 10 The Product 12 Startup and Main Screen 15 Maintenance Screens 15 Probe Calibrate Screen 16 Probe Calibrate Screen 16 BIT Humidity Gen Screen 16 Error Code Screen 16 Firmware Version Screen 16 Operation 18 Chamber Door Use 18 Door Styles 19 Turn On the Product 19 Turn the Product Off 20 Mixing Ins...

Страница 4: ...ip the Product 27 Maintenance 27 Clean the Exterior 27 Desiccant Replacement 28 Water Level 29 Fuse Replacement 29 Calibration 32 Calibration Principle 32 Environmental Conditions 32 Equipment Setup 32 Using a Chilled Mirror Probe 33 As Found Data Collection 36 Load Temperature and Humidity Offsets into the Product 37 As Left Data Collection 37 Temperature Uniformity Verification 38 Error Messages...

Страница 5: ... humidity in the chamber The Product Controls and maintains the relative humidity and temperature in the chamber to within a resolution of 0 1 RH and 0 1 C respectively Has extremely fast response times for changes in humidity and temperature with ramp times as fast as 10 RH minute and 10 C minute Has different door styles to accommodate a variety of humidity sensors Features a simple front panel ...

Страница 6: ...on s website at www flukecal com To register your product visit http flukecal com register product Safety Information A Warning identifies conditions and procedures that are dangerous to the user A Caution identifies conditions and procedures that can cause damage to the Product or the equipment under test Warning To prevent possible electrical shock fire or personal injury Read all safety informa...

Страница 7: ...Product can be compromised Do not put the Product where access to the mains power cord is blocked Do not use the Product if it is damaged Disable the Product if it is damaged Do not use the Product if it operates incorrectly Do not operate the Product with covers removed or the case open Hazardous voltage exposure is possible Use only specified replacement parts Use only specified replacement fuse...

Страница 8: ...ve marking requirements The affixed label indicates that you must not discard this electrical electronic product in domestic household waste Product Category With reference to the equipment types in the WEEE Directive Annex I this product is classed as category 9 Monitoring and Control Instrumentation product Do not dispose of this product as unsorted municipal waste Calibration and Repair Informa...

Страница 9: ...e directly connected to a low voltage power supply network that supplies buildings used for domestic purposes There may be potential difficulties in ensuring electromagnetic compatibility in other environments due to conducted and radiated disturbances Caution This equipment is not intended for use in residential environments and may not provide adequate protection to radio reception in such envir...

Страница 10: ...is the maximum humidity value at which the specification applies See Chamber Operational Range below for Hmax Note Specifications apply to the Working Volume shown in the Working Volume Template found at the end of the Operators Manual and are referenced to the Actual reading on the Product display Chamber Uniformity and Stability Ambient Temperature Range 23 C 3 C 1 Chamber Temperature Chamber Hu...

Страница 11: ...d on temperature and humidity settings The table below shows the maximum RH attainable at different temperatures Operational Specifications Temperature rate of change down 1 5 C minute Typical Temperature rate of change up 10 C minute Typical Humidity rate of change down 5 RH minute Typical Humidity rate of change up 10 RH minute Typical ...

Страница 12: ...libration and calibration label 1 Fill syringe with extension tube 1 Five port square chamber door 1 installed on the Product Port plug 5 installed on each probe port Silicone Unit Under Test UUT grommets in in in 1 in One of each size 4 in total Desiccant cartridge 1 installed inside the Product USB Cable Type A to Type B 1 Product Placement Put the Product on a clean flat surface For best result...

Страница 13: ...o the Product with the plunger or bring the syringe to a higher level than the fill inlet and allow the water to flow into the Product Watch the water level indicator to gauge the fill level as the reservoir is filled The Product takes approximately two syringes of water Monitor the water level indicator to ensure the water level is between the Max and Min lines Caution To avoid damage to the Prod...

Страница 14: ...onductor in the mains power cord is connected to a protective earth ground Disruption of the protective earth could put voltage on the chassis that could cause death Replace the mains power cord if the insulation is damaged or if the insulation shows signs of wear The Product requires mains voltage that ranges from 100 V ac to 240 V ac with frequencies from 50 Hz to 60 Hz The Product comes with th...

Страница 15: ... Table 3 Available Mains Power Plug Types LC 1 LC 3 LC 4 LC 5 LC 6 LC 7 LC 42 hwr039 eps Type Fluke Calibration Option Number North America LC 1 Universal Euro LC 3 United Kingdom LC 4 Switzerland LC 5 Australia LC 6 South Africa LC 7 Brazil LC 42 ...

Страница 16: ...le In Out Draws and returns gas from the Product chamber Use to measure the dew point of the chamber with a chilled mirror instrument that has its own pump The Sample In Out ports are the push to connect type and accept in OD tubing Fill Inlet and Water Level Indicator Use the fill inlet to fill the internal humidifier with distilled water The water level indicator shows the relative amount of wat...

Страница 17: ...er the Product specifications See the end of this manual for a template that outlines the working area One of the three tabs on the outer part of the insert must be in the 6 o clock position as shown in the illustration This position ensures the best temperature and humidity uniformity within the working area Outer Chamber The chamber where the mixing insert is placed The UUT can be placed directl...

Страница 18: ...old down NEXT for 4 seconds to step to the Standby screen 3 When in the Standby screen either down or up toggles the Standby mode On or Off Push and Hold EXIT down for 4 seconds to return to the main screen Down Button Moves the temperature or humidity setting downward depending on which parameter blinks A single button push increments the setting by one count Hold the button down to rapidly advan...

Страница 19: ...number on the startup screen The Product then changes to the main screen and shows This indicates that the internal humidifier is warming up to create sufficient water vapor that will allow high relative humidity value settings The Product will not control the chamber temperature or humidity when is on the main screen To bypass this warmup period and control the chamber push EXIT once he Product n...

Страница 20: ...An example of the calibration offset screen BIT Humidity Gen Screen The BIT humidity gen screen contains parameters associated with the internal humidity generator and is only used by trained service personnel Push and hold down EXIT to return to the main screen Error Code Screen The error code screen is shown and errors that the Product detects are presented See Error Codes for a list of error co...

Страница 21: ...5 8 6 1 10 9 7 ibw003 eps Item Name Description Fan inlet outlet holes Do not block the inlet outlet holes Fans The two fans provide internal cooling to the Product Power supply fan access holes Provides cooling for the internal power supply Do not block these holes and periodically vacuum to remove any dust ...

Страница 22: ...water from the Product Drain water if overfilled or for shipment HI HI terminal for the 12 V dc output to power up transmitters and transducers Fuse 12 V dc output fuse F1A 250 V fuse Operation The subsequent sections explain Product operation Before Product use see Fill the Product with Distilled Water Chamber Door Use Note Before the Product is powered on make sure that there is a chamber door s...

Страница 23: ... the cap and placing the UUT through the cap and appropriate sized silicone grommet and port opening Accessory Clear square door with no ports no silicone gasket and four fasteners one at each corner To install and use this door use the four corner screws 1 4 in x 20 threads to fasten the door in place and tighten the door against the black outer seal on the outside of the chamber Use this door to...

Страница 24: ...e chamber One of the three tabs on the outer part of the insert must be in the 6 o clock position as shown in Table 5 This position ensures the best temperature and humidity uniformity within the working area To check for water condensation remove the mixing insert from the chamber and then reinstall it Initial Warmup Period The Product is a fast response system able to change temperature as quick...

Страница 25: ...level For example a UUT has verification points at 23 C 90 RH followed by 10 C 90 RH The first set point 23 C and 90 RH has a dew point of 21 3 within 2 C of the actual temperature When the chamber actual conditions reach this set point CAUTION shows on the display Before setting the chamber to 10 C set the humidity to about 1 2 the Actual 45 When that humidity is reached then set the Product to 1...

Страница 26: ... or near the chamber door or on the UUT If condensation forms anywhere in the chamber the relative humidity inside the chamber is unknown Condensation must always be removed from inside the chamber before calibrations are performed See Remove Condensation Remove Condensation To remove condensation 1 Turn off the Product unplug the mains power cord and remove the chamber door 2 Carefully inspect th...

Страница 27: ... probe inside the port opening Ensure the UUT sensor is inside the working volume of the chamber The working volume is outlined in Figure 11 and has a depth of 76 mm to 152 mm 3 in to 6 in from the inner door face 5 Hand tighten the cap around the UUT to give an airtight seal If necessary add sealant material around the UUT probe Parafilm Scotch Removable Adhesive Putty or similar materials work w...

Страница 28: ...is significantly different than the chamber temperature and if the chamber is set to extreme humidity and temperature set points Monitor the actual temperature and humidity points as shown on the Product display Chamber stabilization is typically reached when the actual temperature is within 0 1 C of the set temperature and the actual humidity is within 0 2 of the set humidity Data Logger Calibrat...

Страница 29: ... to avoid condensation on the Sample In Out port lines otherwise the lines must be heated to 5 C above the chamber temperature Fluke Calibration recommends that the gas sample is returned back to the Product through the Sample In port Measure the temperature within the chamber and the dew point measurement from the chilled mirror to determine the relative humidity inside the Product chamber For th...

Страница 30: ...ommands Command Read Write Function BOOT Write Resets the Product HELP Read Returns the list of remote commands available ID Reads Returns Fluke 5128A serial number and firmware revision HOFFSET Read Returns the value of the humidity offset stored within the Product HOFFSET x x Write Sets the humidity offset used in the Product as part of the calibration process RH TOFFSET Read Returns the value o...

Страница 31: ...ain the water by slightly tilting the Product When shipping the Product use the original carton and packing material or Fluke Calibration case accessory part number 4791304 Maintenance This section explains routine operator maintenance necessary to keep the Product in optimal condition Clean the Exterior To clean the Product wipe it with a cloth that is lightly dampened with water or mild detergen...

Страница 32: ...es saturated When the entire normally blue desiccant material is pink the cartridge should be replaced See Display and Control Panel To change the desiccant cartridge see Figure 5 1 Turn the Product off 2 Turn the front panel cap turn counter clockwise and remove the cap 3 Loosen the rear seal of the desiccant by gently nudging the front of the desiccant in various directions up down left right 4 ...

Страница 33: ...ar of the product to drain excess water from the Product See Display and Control Panel Warning To prevent possible electrical shock fire or personal injury do not overfill the reservoir Fuse Replacement The Product has mains fuses located in the mains input assembly The fuse rating label above the mains input assembly shows the correct replacement fuse ratings for each operating voltage Warning To...

Страница 34: ...gure 6 1 Disconnect the mains power cord 2 With a standard screwdriver release the fuse holder door 3 Pull out the fuse holder 4 If necessary replace the fuse 5 Reinsert the fuse holder 6 Close the fuse holder door 3 2 1 ibw007 eps Figure 6 Replace the Mains Fuses ...

Страница 35: ... Product has a fuse for the 12 V dc transducer power output located in the rear panel Replace only with a 1 A Fast Blow fuse F1A 250V 5x20mm To change the fuse see Figure 7 12VDC FUSE 1 AMP MAX GND DRAIN PLUG ibw024 eps Figure 7 Replace the 12 V Fuse ...

Страница 36: ... uncertainty Michell Instruments S8000 Remote or RH Systems 473 with RP2 probe Readout 0 006 C 25 C thermistor uncertainty Fluke 1586A Super DAQ Precision Temperature Scanner with DAQ STAQ multiplexer Thermistor 0 01 C calibration uncertainty Fluke 5611T 8 probes are required Thermistor probe fixture Positions four of the thermistor probes in a square pattern at the rear of the working area and th...

Страница 37: ...raw the sample from the chamber Experiment with the pump speed to draw enough gas for the chilled mirror to work but not so much that the Product performance is adversely affected A flow range of 0 1 liters to 0 5 liters per minute is usually adequate Use PTFE or stainless tubing for best results Caution When drawing gas out of the chamber in this method the dew point of the gas must be lower than...

Страница 38: ... remote head into the door as shown in Figure 9 Ensure that the remote head sensor is inserted into the working volume of the chamber There is sufficient gas flow within the chamber such that an external pump is normally not needed in this situation ibw012 eps Figure 9 Chilled Mirror Probe Inserted Directly into the Door ...

Страница 39: ... minute is usually adequate Ensure the chosen flow rate does not cause excessive chamber temperature non uniformity Use PTFE or stainless tubing for best results See Figure 10 Caution When drawing gas out of the chamber in this method the dew point of the gas must be lower than ambient temperature otherwise heated tubes must be used to prevent the formation of condensation in the tube ibw021 eps F...

Страница 40: ...midity for that test point Table 11 Calibration Steps Step Temperature Set Point Humidity Set Point Dew Point Reading Temperature Reading Calculated RH Low T Tolerance High T Tolerance Low RH Tolerance High RH Tolerance 1 18 C 7 17 86 C 18 14 C 6 3 7 7 2 18 C 20 17 86 C 18 14 C 19 3 20 7 3 23 C 20 22 86 C 23 14 C 19 3 20 7 4 28 C 20 27 86 C 28 14 C 19 3 20 7 5 23 C 35 22 86 C 23 14 C 34 3 35 7 6 1...

Страница 41: ... at the set point of 23 C 35 Calculate the difference from the reference as C C DUT_Actual_RH Ref_RH 7 Record the Product displayed Actual relative humidity at the set point of 23 C 80 Calculate the difference as D 8 Calculate RH_Error with RH_Average_Error C D 2 9 Calculate the new relative humidity offset with RH_Offset_New RH_Offset_As_Found RH_Average_Error 10 To update the temperature and rel...

Страница 42: ...roduct off and check for condensation See Remove Condensation There is a leak in the system Check that the door is properly seated and tightened against the Product front panel Check that all ports are sealed properly Check Water indicator is lit with the water at the proper level Display has the message HI RH ERR Product setting is at a temperature and or humidity extreme relative to the prior se...

Страница 43: ...hut off power Drain excess water using the drain outlet on the back of the Product until water level is between Max and Min with the Product in Standby or turned off Error Messages The product has Error Messages that show information during general use of the Product Error Messages are not necessarily related to the Error Codes that follow this section The latter indicates an internal failure that...

Страница 44: ...rdware fault No Peltier Temp Internal over temperature probe fault fans will run continuously No HumGen Temp Internal temperature probe failure Peltier High Limit Internal cooling sensor is above limit HumGen Low Limit Ambient temperature of humidity generator is below operating temperature HumGen High Limit Humidity generator is above allowed limit Check water supply or ambient conditions EEPROM ...

Страница 45: ...2 1 Mains Power Cord UK 769455 1 Mains Power Cord Swiss 769448 1 Mains Power Cord Australia 658641 1 Mains Power Cord South Africa 782771 1 Mains Power Cord Thailand 4362094 1 Mains Power Cord Denmark 2477031 1 Mains Power Cord Brazil 3841347 1 5128A Safety Information 4758293 1 FUSE 5 x 20 mm 4 Amp F4A 250V Fast Blow 3712591 2 FUSE 12 V dc output fuse F1A 250V fuse 3712540 1 Desiccant cartridge 4...

Страница 46: ...MINIMUM MAXIMUM WORKING AREA CHAMBER COVER 1 00 inch 4 30 inches 4 88 inches FRONT RIGHT CORNER OF FLUKE 5128A FRONT PANEL FACE OF FLUKE 5128A Figure 11 Working Volume Template 42 ...

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