background image

BooSt

Boost heater mode

Press "SET" to choose the mode. The current mode is displayed.

b=Auto

Current mode setting

Select the mode with "UP" or "DOWN" then press "SET" to accept the desired
mode.

b= USEr

9.14

Serial Interface Parameters

The serial RS-232 interface parameters menu is indicated by,

SErIAL

Serial RS-232 interface parameters menu

The serial interface parameters menu contains parameters which determine the
operation of the serial interface. The parameters in the menu are baud rate,
sample period, duplex mode, and linefeed.

9.14.1

Baud Rate

The baud rate is the first parameter in the menu. The baud rate setting deter-
mines the serial communications transmission rate.

The baud rate parameter is indicated by,

BAUd

Serial baud rate parameter

Press “SET” to choose to set the baud rate. The current baud rate value is
displayed.

1200 b

Current baud rate

The baud rate of the bath serial communications may be programmed to 300,
600, 1200, or 2400 BAUD. Use “UP” or “DOWN” to change the BAUD rate
value.

2400 b

New baud rate

Press “SET” to set the baud rate to the new value or “EXIT” to abort the opera-
tion and skip to the next parameter in the menu.

6331 Calibration Bath

User’s Guide

52

Содержание CalPower 6331

Страница 1: ...3 Fluke Corporation All rights reserved Specifications are subject to change without notice All product names are trademarks of their respective companies Via Acquanera 29 22100 Como tel 031 526 566 r...

Страница 2: ......

Страница 3: ...ng 11 4 2 Set Up 12 4 3 Power 14 4 4 Setting the Temperature 14 5 Installation 17 5 1 Moving or Uncrating the Bath 17 5 2 Bath Environment 17 5 3 Tipping Prevention Bracket Installation 17 5 3 1 Insta...

Страница 4: ...Oil 30 8 1 10 4 Silicone Oil 31 8 1 11 Fluid Characteristics Charts 31 8 1 11 1 Limitations and Disclaimer 31 8 1 11 2 About the Chart 31 8 2 Stirring 34 8 3 Power 34 8 4 Heater 34 8 5 Temperature Co...

Страница 5: ...on Termination 54 9 16 Calibration Parameters 55 9 16 1 CTO 55 9 16 2 CO and CG 55 9 16 3 H and L 55 10 Digital Communication Interface 57 10 1 Serial Communications 57 10 1 1 Wiring 57 10 1 2 Setup 5...

Страница 6: ...Maintenance 69 13 Troubleshooting 71 13 1 Troubleshooting 71 13 2 Comments 73 13 2 1 EMC Directive 73 13 2 1 1 Immunity Testing 73 13 2 1 2 Emission Testing 74 13 2 2 Low Voltage Directive Safety 74...

Страница 7: ...18 Figure 3 Front Panel Features 23 Figure 4 Chart Showing Usable Range Of Various Fluids 33 Figure 5 Controller Operation Flowchart 38 Figure 6 Bath Temperature Fluctuation At Various Proportional B...

Страница 8: ...ls 1 Table 2 Table of Bath Fluids 32 Table 3 Program Mode Setting Actions 45 Table 4 Proportional Band Fluid Table 48 Table 5 Interface Command Summary 61 Table 5 Interface Command Summary continued 6...

Страница 9: ...he instrument or in this manual Symbol Description AC Alternating Current AC DC Battery CE Complies with European Union Directives DC Double Insulated Electric Shock Fuse PE Ground Hot Surface Burn Ha...

Страница 10: ...ent being used 1 2 1 WARNINGS To avoid personal injury follow these guidelines GENERAL DO NOT use the instrument for any application other than calibration work The instrument was designed for tempera...

Страница 11: ...t cover of the fluid expansion reservoir may be hot Handle them carefully and always be sure the drain tube is fully inserted into the elbow of the dust cover The drain tube of the fluid expansion res...

Страница 12: ...the tank ensure the heating coils are completely covered DO NOT fill above the stir baffle see Figure 1 on page 13 DO NOT overfill the bath Overflowing fluid may damage the electrical system Be sure...

Страница 13: ...Authorized Service Centers Please contact one of the following authorized Service Centers to coordinate service on your Hart product Fluke Corporation Hart Scientific Division 799 E Utah Valley Drive...

Страница 14: ...Center 60 Alexandra Terrace 03 16 The Comtech Lobby D 118502 SINGAPORE Phone 65 6799 5588 Telefax 65 6799 5588 E mail antng singa fluke com When contacting these Service Centers for support please hav...

Страница 15: ...erating functions User interface is provided by the 8 digit LED display and four key switches Digital remote communications is standard with an RS 232 and optional with an IEEE 488 interface The 6331...

Страница 16: ...g Accuracy 1 C Digital Setting Repeatability 0 01 C Control Heater 700 Watts Boost Heater 900 Watts Access Opening 6 8 x 4 7 172 x 119 mm Depth 18 457 mm without liquid in glass calibration kit 19 482...

Страница 17: ...commendations can be found in the Maintenance Section of this manual The instrument operates safely under the following conditions temperature range 5 40 C 41 104 F ambient relative humidity maximum 8...

Страница 18: ...inspect it for any damage that may have oc curred during shipment If there is shipping damage notify the carrier immedi ately Verify that all components are present 6331 Bath Access Hole Cover Fluid...

Страница 19: ...ific information on bath fluids and Section 9 10 Cutout Set up of the bath requires careful unpacking and placement of the bath filling the bath with fluid and connecting power Consult Section 5 Insta...

Страница 20: ...o expansion This drains the fluid into the fluid expansion reservoir for reuse See Section 7 3 1 Fluid Expansion Reservoir for details in using the reservoir NOTE As the temperature of the bath increa...

Страница 21: ...splay reading is written at the right To view or set the bath temperature set point proceed as follows The front panel LED display normally shows the actual bath temperature 24 68 C Bath temperature d...

Страница 22: ...til it reaches the new set point temperature When setting the set point temperature be careful not to exceed the temperature limit of the bath fluid The over temperature cutout should be correctly set...

Страница 23: ...y or damage to the bath may occur 5 2 Bath Environment The Model 6331 Bath is a precision instrument which should be located in an appropriate environment The location should be free of drafts extreme...

Страница 24: ...floor using the bracket to mark the hole placement Drop the flare anchor bolt into the hole Tightening the screw expands the anchor in the drilled hole and secures the bracket Ensure that the bracket...

Страница 25: ...ION Avoid spilling fluid over the control panel Immediately re move any spilling Cover the panel if necessary during filling DO NOT overfill The Model 6331 Bath is not provided with a fluid Various fl...

Страница 26: ...d the CAUTION at the front of the manual concerning brown out and over voltage protection Check the back label for the correct voltage and frequency prior to energizing the bath 6331 Calibration Bath...

Страница 27: ...l they are at room temperature It is advisable to wipe the probe with a clean soft cloth or paper towel before inserting it into another bath This prevents the mixing of fluids from one bath to anothe...

Страница 28: ...better results can generally be achieved by starting at the highest temperature and progressing down to the lowest temperature Probes can be held in place in the bath by using probe clamps or drilling...

Страница 29: ......

Страница 30: ...ng motor is mounted on the bath tank lid It drives the stirring propeller to provide mixing of the bath fluid Proper mixing of the fluid is important for good constant temperature stability A motor co...

Страница 31: ...shield to prevent touching when the tank is hot There is a stainless steel dust cover over the reservoir with an elbow on top that the drain tube is inserted into The reser voir hangs on a hook and i...

Страница 32: ...sed fluid dripping into the bath from the lid The bath temperature should be limited by setting the safety cutout so that the bath temperature cannot exceed the safe operating temperature limit of the...

Страница 33: ...ause overflow into the fluid expansion reservoir see Section 7 3 1 Fluid Expansion Reser voir for how to use this It may also cause loss of valuable bath fluid Exces sive thermal expansion may also be...

Страница 34: ...d always consider the safety issues associated Obviously where there are extreme temperatures there can be danger to personnel and equipment Fluids may also be hazardous for other reasons Some fluids...

Страница 35: ...range from a few degrees above 0 C to a few degrees below 100 C At higher temperatures evaporation becomes significant Water used in the bath should be distilled or deionized to prevent mineral depos...

Страница 36: ...ere may be other useful fluids not shown in this listing The charts include information on a variety of fluids which are often used as heat transfer fluid in baths Because of the temperature range som...

Страница 37: ...10 C v 166 C fl 168 C 15 75 C 5 125 C 0 87 25 C 0 84 75 C 0 81 125 C 0 48 25 C 0 53 75 C 0 57 125 C 0 00025 25 C 0 0007 50 C 5 25 C Silicone Oil Type 200 05 5010 40 C v 130 C fl cc 133 C 5 25 C 0 92 2...

Страница 38: ...lth hazards posed by fume vapors In the graph it is assumed that the bath access hole is covered at this point This is subject to user s company policy Hart recommends the use of a ventilation system...

Страница 39: ...Specifications for power details Power to the bath passes through a filter to prevent switching spikes from being transmitted to other equipment To turn on the bath switch the control panel power swit...

Страница 40: ...ng circuit which shuts off the heater if the temperature exceeds the cutout set point The controller allows the operator to set the bath temperature with high resolu tion set the cutout adjust the pro...

Страница 41: ...e 25 00 C Bath temperature in degrees Celsius The temperature display function may be accessed from any other function by pressing the EXIT button 9 2 Reset Cutout If the over temperature cutout has b...

Страница 42: ...Setpoint EXIT EXIT Adjust Vernier Scan on off Cutout Active Display Temperature Cutout Reset Mode Adj Cutout Reset Mode X 5 DO NOT CHANGE THESE VALUES SEE MANUAL IEEE 488 Option Installed L Calibrati...

Страница 43: ...uid In addition the cutout temperature should also be set below the upper limit of the fluid Setting the bath temperature involves three steps 1 select the set point mem ory 2 adjust the set point val...

Страница 44: ...set point value 9 3 3 Set point Vernier The set point value can be set with a resolution of 0 01 C The user may want to adjust the set point slightly to achieve a more precise bath temperature The set...

Страница 45: ...the set point function ScAn OFF Scan function off Press UP or DOWN to toggle the scan on or off ScAn On Scan function on Press SET to accept the present setting and continue S Accept scan setting 9 4...

Страница 46: ...fter the vernier adjustment function by pressing SET From the temperature display function access the units selection by pressing SET 4 times 25 00 C Bath temperature S Access set point memory 1 25 0...

Страница 47: ...e program menu S Enter program menu 9 6 1 Number of Program Set points The first parameter in the program menu is the number of set points to cycle through Up to 8 set points can be used in a ramp and...

Страница 48: ...aintained after settling before pro ceeding to the next set point The duration is counted from the time the temper ature reaches the set point Pt 15 Soak time in minutes Use the UP or DOWN buttons to...

Страница 49: ...mand and return to the temperature display S Activate new command 9 7 Secondary Menu Functions which are used less often are accessed within the secondary menu The secondary menu is accessed by pressi...

Страница 50: ...r S E Access heater power in secondary menu 12 Pct Heater power in percent To exit out of the secondary menu press EXIT To continue on to the propor tional band setting function press SET E Return to...

Страница 51: ...ions change Of these the most significant factors affecting the optimum pro portional band width are the fluid viscosity and thermal noise due to difference in temperature between the fluid and ambien...

Страница 52: ...0 060C New proportional band setting To accept the new setting and access the cutout set point press SET Pressing EXIT exits the secondary menu ignoring any changes just made to the pro portional band...

Страница 53: ...hut off allowing the bath to cool The display will flash Cut out and the message will be sent over the communications ports The bath cools until it reaches a few degrees below the cutout set point tem...

Страница 54: ...UP and DOWN keys and then pressing SET 9 12 Probe Parameters The probe parameter menu is indicated by PrObE Probe parameters menu Press SET to enter the menu The probe parameters menu contains the pa...

Страница 55: ...mode press UP and then SET Cto rSt Cutout set for manual reset 9 13 2 Boost Heater Mode A boost heater is activated by the front panel Boost Heater switch The switch must be on for either user mode t...

Страница 56: ...sample period duplex mode and linefeed 9 14 1 Baud Rate The baud rate is the first parameter in the menu The baud rate setting deter mines the serial communications transmission rate The baud rate par...

Страница 57: ...od 9 14 3 Duplex Mode The next parameter is the duplex mode The duplex mode may be set to full du plex or half duplex With full duplex any commands received by the bath via the serial interface are im...

Страница 58: ...to use the same address as the ex ternal communicating device The address is indicated by AddrESS IEEE 488 interface address Press SET to access the address setting Add 22 Current IEEE 488 interface...

Страница 59: ...is im portant to the safety and proper operation of the bath The calibration parameters menu is indicated by CAL Calibration parameters menu Press SET five times to enter the menu 9 16 1 CTO Paramete...

Страница 60: ...stop bit and no parity 10 1 1 Wiring The serial communications cable attaches to the bath through the DB 9 connector on the rear panel Figure 7 shows the pin out of this connector and suggested ca ble...

Страница 61: ...ampling is disabled with a sample period of 0 Press SET to choose to set the sample period Adjust the period with UP or DOWN and then use SET to set the sample rate to the displayed value 10 1 2 3 Dup...

Страница 62: ...th IEEE Press SET to enter the IEEE 488 parameter menu The IEEE 488 menu contains the IEEE 488 ad dress parameter 10 2 1 1 Address The IEEE 488 address is prompted with AddrESS Press SET to program th...

Страница 63: ...e is sent with the command following a character For example s CR returns the current set point and s 50 00 CR sets the set point set point 1 to 50 00 degrees In the following list of commands charact...

Страница 64: ...1 to 5 000 C min 0 002 to 9 000 F min Read temperature t emperature t t 9999 99 C or F t 55 69 C Read temperature units u nits u u x u c Set temperature units u nits c f C or F Set temperature units t...

Страница 65: ...d ALPHA calibration parameter al pha al al 9 9999999 al 0 0038573 Set ALPHA calibration parameter to n al pha n al 0 0038433 00370 to 00399 Operating Parameters Menu Read cutout mode cm ode cm cm xxxx...

Страница 66: ...d high set point limit value th igh th th 999 th 205 Set high set point limit to n th igh n th 205 30 to 300 Miscellaneous not on menus Read all parameters all all list of operating parameters Read fi...

Страница 67: ...ange of the bath The further apart the calibration temperatures the greater the calibrated temperature range but the calibration error will also be greater over that range For example 50 C and 150 C a...

Страница 68: ...0038500 respectively and the data for tL tH errL and errH were as given above then the new values R0 and ALPHA would be computed as 100 193 and 0 0038272 respectively Program the new values R0 and ALP...

Страница 69: ...C tH 120 00 C measured t 119 914 C Compute errors errL 79 843 80 00 C 0 157 C errH 119 914 120 00 C 0 086 C Compute R0 R 0 0 086 80 0 0157 120 0 120 0 80 0 0 00385 1 100 000 100115 Compute ALPHA ALPH...

Страница 70: ...bath down with the cloth Re peat the process as often as necessary to keep the oil from collecting on the bath If oil is allowed to collect on the bath it may run into the bath and collect on the int...

Страница 71: ...Center see Section 1 3 for more information Before using any cleaning or decontamination method except those rec ommended by Hart users should check with an Authorized Service Cen ter see Section 1 3...

Страница 72: ...oling temperature switching the cooling power switch to LOW or switching off the cooling altogether One or more burned out heaters or blown heater fuses may also cause this problem If the heaters seem...

Страница 73: ...read from 100 to 300 ohms between pins 1 and 4 depending on the temperature If the probe is defective contact an Authorized Service Center see Section 1 3 for assistance If the problem is not the pro...

Страница 74: ...eing too narrow typically causes this oscilla tion Increase the width of the proportional band until the temperature stabilizes as discussed in Section 9 9 Proportional Band The controller erratically...

Страница 75: ...pment The instrument was not designed to be used in domestic establishment 13 2 2 Low Voltage Directive Safety In order to comply with the European Low Voltage Directive 73 23 EEC Hart Scientific equi...

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