DayTronic 3500 Series Instruction Manual Download Page 23

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2.5

ETUP

: C

ONNECTIONS AND

OWERUP

2.a T

RANSDUCER

ONNECTIONS

: M

ODEL

3540

SHIELD

SHLD

–SIGNAL

+SIGNAL

–

EXCITATION

COM

SIG

–

SIG

FREQUENCY

SOURCE

SIGNAL INPUTS

SIGA

–

COM

PWR

SHIELD

SHLD

–SIGNAL

+SIGNAL

–

EXCITATION

COM

SIG

–

SIG

FREQUENCY

SOURCE

SIGNAL INPUTS

SIGA

–

COM

PWR

Fig. 8(b) Model 3540 Transducer
Cabling: Single-Ended (Grounded)
Frequency Input

SHLD

EXCITATION

COM

SIG

–

SIG

SIGNAL INPUTS

SIGA

–

COM

PWR

+SIGNAL

Fig. 8(e) Model 3540 Transducer
Cabling for Suppression of High-
Frequency Noise

SHLD

EXCITATION

COM

SIG

–

SIG

SIGNAL INPUTS

SIGA

–

COM

PWR

ZERO-VELOCITY SENSOR

+EXCITATION

+SIGNAL

–EXCITATION

SHIELD

10K

10K Pull-up Resistor (for
use with open-collector
sensor)

Fig. 8(c) Model 3540
Transducer Cabling:
Input from a Zero-
Velocity Sensor

Fig. 8(a) Model 3540 Transducer
Cabling: Differential (Floating)
Frequency Input

SHLD

EXCITATION

COM

SIG

–

SIG

SIGNAL INPUTS

SIGA

–

COM

PWR

+SIGNAL

Fig. 8(d) Model 3540 Transducer
Cabling for Elimination of DC Offset

Summary of Contents for 3500 Series

Page 1: ...3500 INSTRUMENT SERIES SB 3 INSTRUCTION MANUAL...

Page 2: ...reprinted reproduced or used in any form or by any electronic mechanical or other means including photocopying and recording or in any information storage and retrieval system without permission in wr...

Page 3: ...SERIES INSTRUCTION MANUAL 3500 Series Instruction Manual v SB 3 Pub No 3500M 3 Issued 1 97 Part No 91668 Daytronic Corporation 2211 Arbor Blvd Dayton OH 45439 1521 Tel 937 293 2566 Fax 937 293 2586 ww...

Page 4: ...l 3540 2 4 5 Connecting a Voltage Source to the Model 3560 2 6 6 Connecting a DC Strain Gage Transducer to the Model 3570 2 7 7 Connecting an AC Strain Gage Transducer to the Model 3578 2 8 b RS 232 S...

Page 5: ...t Calibration 4 2 3 Simulated Two Point Deadweight Calibration 4 2 4 Internal 15 Segment Linearization 4 3 5 Calculated Calibration 4 3 6 Calculated Calibration Via Mnemonic Command 4 3 b Phase and Sy...

Page 6: ...nditioner A 3 c Model 3540 Frequency Input Conditioner A 4 d Model 3560 Voltage Conditioner A 5 e Model 3570 DC Strain Gage Conditioner A 6 f Model 3578 AC Strain Gage Conditioner A 7 Appendix B COMMA...

Page 7: ...of High Frequency Noise 2 5 9 a Model 3560 Transducer Cabling General Voltage Source 2 6 9 b Model 3560 Transducer Cabling External Potentiometer 2 6 9 c Model 3560 Transducer Cabling External DC to D...

Page 8: ...ternal Relay 2 18 18 Limit Zones 3 15 19 High and Low Hysteresis Windows 3 16 20 Symmetry and Phase Adjustment Controls for the Model 3578 4 4 21 Typical Linearization Curve with Seven Segments 4 12 2...

Page 9: ...terrogation from an external computer or can send it to an RS 232 serial printer when the PRINT button is pressed assuming that it is set to RS 232 mode When in RS 485 mode a given 3500 instrument can...

Page 10: ...ce transducer The normal input range can be 0 150 0 300 or 0 600 mV V full scale Input provi sions also exist for long stroke LVDT s 0 1 0 2 or 0 4 V V full scale Nominal 3 V AC rms excitation is supp...

Page 11: ...ration purpos es when the transducer s full scale mV V sensitivity is accurately known The cal ibration shunt may be switched in and out for either a positive or negative up scale reading via simple c...

Page 12: ...s after the security code has been entered and the unit is ready for any of the front panel setup procedures given in Sections 3 a and 4 a 1 4 1 INTRODUCTION ENTER HI OK LO COM RANGE CAL FILTER ANO DE...

Page 13: ...ONDI TIONER CONNECTOR that attaches directly to the rear edge of the unit s internal Analog Input Board In addition the 3578 only has rear panel Symmetry and Phase Controls All other models use a stan...

Page 14: ...MP SLIDES and tighten the CLAMP SCREWS until the instrument is securely mounted 1 6 1 INTRODUCTION 1 d PANEL MOUNTING Analog Output Connector see Fig 16 AA AA Analog Input Connector see Fig 7 8 9 or 1...

Page 15: ...alues Used to enter LIMIT PARAMETERS high limit high hysteresis high latch ON OFF low limit low hysteresis low latch ON OFF Used to display the existing value of a setup parameter and to finalize entr...

Page 16: ...cribed in Appendix F PLEASE NOTE THE MINIMUM TIME ALLOWED BETWEEN ACTIVATION AND REACTIVATION OF ANY OF THE FOUR LOGIC CONTROL INPUTS IS 100 MIL LISECONDS 1 f SUMMARY OF LOGIC I O FUNCTIONS SET UP TAR...

Page 17: ...DS for control of positive peak capture appli cation of tare offset and initiation and halting of hard copy transmissions see Sections 5 b 5 c and 5 d The second way to issue commands to the instrumen...

Page 18: ...MULTINODE operation every command received at the RS 232 485 Interface Port will evoke a response from that port either ACKNOWLEDGED NOT ACKNOWLEDGED or the re quested PARAMETER or DATA VALUE S For a...

Page 19: ...O THE MODEL 3510 The Model 3510 Thermocouple Conditioner s rear Analog Input Board mates with a special CONDITIONER CONNECTOR shown in Fig 2 a and in Fig 6 below which provides a precision thermistor...

Page 20: ...e tied to the corresponding EXCI TATION lines at the CONDITIONER CONNECTOR 7 wire LVDT cabling Fig 7 b or 5 wire variable reluctance transducer cabling Fig 7 d is to be used when the cable is 20 feet...

Page 21: ...ON SIGNAL EXCITATION SIGNAL 10K 10K N C SHIELD SHLD N C Fig 7 c Model 3530 Transducer Cabling 3 Wire Variable Reluctance Cabling under 20 ft in length SIG SIG CNTR WIRE SENS EX LVDT INPUT EX SENS HI S...

Page 22: ...0 1 F capacitive coupling can be used to elimi nate any positive or negative DC offset that exists for the frequency signal Sim ply connect the SIGNAL line from the frequency source to the SIGA termi...

Page 23: ...SIGNAL INPUTS SIGA 5V COM PWR 5V SIGNAL Fig 8 e Model 3540 Transducer Cabling for Suppression of High Frequency Noise SHLD EXCITATION COM SIG SIG SIG SIGNAL INPUTS SIGA 5V COM PWR 5V ZERO VELOCITY SE...

Page 24: ...and SIG COM terminals should be connected by a jumper wire as in Figs 9 b and 9 c 2 6 2 SETUP CONNECTIONS AND POWERUP 2 a TRANSDUCER CONNECTIONS MODEL 3560 SHIELD N C SHLD SIGNAL SIGNAL Reg Power Sup...

Page 25: ...at the transducer Note also the wire connected to the SIGNAL line at the transducer but left unconnected at the instrument This wire is to be paired with the CAL SENSE line as shown for shielding purp...

Page 26: ...eans of one of the internal clamp bars The shield wire of the transducer cable should be soldered to the exposed ter minal of the L shaped GROUND LUG located under the head of one of the con nector s...

Page 27: ...Fig 11 b is to used when the cable is 20 feet or longer As before you can install your own shunt calibration resistor between Pin 5 and the SIGNAL line in which case Pin 4 is not used With cabling of...

Page 28: ...u need only MAKE SURE THAT THE INSTRUMENT S CURRENT NODE NUMBER IS 0 ZERO You will be shown in Section 3 a 3 how to set the node number and other necessary RS 232 communications parameters via the fro...

Page 29: ...32 SHIELD RS 232 485 Interface Connector Male see Fig 2 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 Pin No Function 3500 Series Instrument 25 Pin RS 232 C Connector 2 3 4 5 8 2 3 5 7 20 RECEIVE TRANSMIT DTR C...

Page 30: ...directly to the RS 232 485 Interface Port of the first network node which should be a 3500 Series instrument via the cabling given in Fig 14 b Note that the 12 V supply of the first node when it is a...

Page 31: ...s the two DATA terminals again see Fig 14 a 2 13 SETUP CONNECTIONS AND POWERUP 2 2 c RS 485 MULTINODE NETWORK CONNECTIONS 100 0 0047 f RS 485 Terminator for chains over 500 ft Computer 25 Pin RS 232 C...

Page 32: ...5 use Belden 8162 Datalene 100 Shielded Twisted Pairs or other cable intended for EIA RS 422 485 SHIELD SHIELD RS 232 485 Interface Port 3500 or 4000 Series Instrument RS 232 485 Interface Port 3500 o...

Page 33: ...o the desired source A B or C again see Fig 15 The pins labelled D are not currently used 4 Replace the cover and reactivate the unit 2 15 SETUP CONNECTIONS AND POWERUP 2 2 d ANALOG OUTPUT CONNECTIONS...

Page 34: ...s while the last four are logic inputs For the Model 3570 DC Strain Gage Conditioner only two logic inputs and are also provided on the Analog Input Connector for control of shunt calibration see Fig...

Page 35: ...tor Also includes and Calibration Inputs for the Model 3570 DC Strain Gage Conditioner ONLY see Fig 5 b Fig 17 b Logic I O Connections External TTL Logic Input Control Block Logic I O Connector COM 5...

Page 36: ...een pigtail on the adaptor to earth ground Since the presence of electrical noise can affect the ultimate integrity of your data the noise level should be suppressed as much as possible In particular...

Page 37: ...est performed on the RAM chip If rFAIL appears it probably means either that a RAM write did not take or that a write to one location affected another byte of the RAM IN THE EVENT OF AN rFAIL MESSAGE...

Page 38: ...2 20 This page intentionally blank...

Page 39: ...just press the SETUP button again If no setup parameters have been changed since you last entered SETUP MODE you will return immediately to the RUN TIME live data MODE If however one or more setup pa...

Page 40: ...discussed in Section 1 e above to display any integral number from 1 through 98 WARNING BE SURE TO WRITE DOWN THE NUMBER YOU SELECT AS YOUR SECURITY CODE SO THAT YOU DON T FORGET IT ONCE YOU PRESS ENT...

Page 41: ...3 a 3 RS 232 COMMUNICATIONS PARAMETERS COM KEY PLEASE NOTE FOR PROPER DATA INTERCHANGE BETWEEN THE 3500 INSTRUMENT AND A SINGLE CONNECTED RS 232 C COMPUTER TERMINAL PRINTER OR OTHER DEVICE TO OCCUR TH...

Page 42: ...e only allowable values by pressing the top or bottom segment of the displayed digit j When the desired number of stop bits appears press ENTER and then COM The unit will display PAR for PARITY k To d...

Page 43: ...INATOR also called COMMAND TERMINATOR CMT is the single ASCII CONTROL CHARACTER from 00 through 1F to be recog nized as the termination for all mnemonic commands received by the unit through its RS 23...

Page 44: ...t 1F even though it is possible to increment the most significant digit up to 7 y When the desired character appears press ENTER The unit will display Eot2 Press ENTER to display the second character...

Page 45: ...bove c When setting the BAUD RATE keep in mind that the maximum speed at which network interchanges can take place will depend on 1 the capacity of your computer s input buffer 2 the network setup con...

Page 46: ...et for a Type E thermocouple after you press ENTER it will display 2 To change the TC Type setting you can cycle forwards or backwards through the allowed settings E J K R S T and B by pressing the to...

Page 47: ...ed to Section 3 a 6 3 a 5 b SETTING THE MODEL 3530 S LVDT INPUT RANGE The Model 3530 LVDT Conditioner must be set to match the full scale input range of the displacement transducer 1 After pressing th...

Page 48: ...rwise press RANGE again and proceed to Step 6 If for example the conditioner is set for a sensitivity of 1 V to 20 V when you press ENTER it will display 1 5 To change the input sensitivity you can cy...

Page 49: ...conditioner is set for an excitation of 5 V DC when you press ENTER it will display 5 6 To change the excitation level you can cycle forwards or backwards through the allowed settings 2 5 and 10 V by...

Page 50: ...ENTER button Unless your unit is a Model 3510 Thermocouple Conditioner it will display ANALG for ANALOG If your unit is a Model 3510 it will display DGTAL for DIGITAL proceed to Step f below c If you...

Page 51: ...ements Note that while they are set in the same way the ANALOG OFFSET and ANALOG AMPLIFICATION GAIN parameters function differently for the Model 3510 Thermocouple Conditioner than they do for all the...

Page 52: ...display it will be 5 V and when 100 is on display it will be 1 V If however an ANALOG OFF SET of 200 is entered and an ANALOG OUTPUT AMPLIFICATION of 400 then a reading of 200 will produce an analog o...

Page 53: ...than the existing LOW LIMIT although the two values may be equal nor can either value exceed the unit s inherent count range of 32700 d When the desired HIGH LIMIT value appears press ENTER to return...

Page 54: ...use the NUMERIC BUTTONS as explained in Section 1 e to modify the displayed number REMEMBER This number expresses a PERCENTAGE OF THE EXISTING m COEFFICIENT If you don t need a hysteresis window just...

Page 55: ...tion 3 a 10 below for instructions 3 a 9 TARE OFFSET TARE KEY By means of the TARE RESET button in SETUP MODE you can establish a tare offset to be continuously subtracted from the live data reading w...

Page 56: ...the PRINT or the ENTER button to display INT for INTERVAL c To display the current PRINT INTERVAL number press If you don t want to display the interval number press PRINT again and pro ceed to Step...

Page 57: ...ly occu pies 1 for LESS THAN ZONE 0 for OK ZONE and 1 for GREATER THAN ZONE If the LIMIT STATUS INDICATION status is OFF it means that limit zone indication will not appear in any CHN transmission To...

Page 58: ...bove IMPORTANT WHEN CONFIGURING YOUR UNIT REMOTELY THROUGH THE RS 232 485 INTERFACE DON T FORGET TO ISSUE A COMMAND OF SAV ON CMT WHEN YOU RE FINISHED THIS COMMAND WILL SAVE THE EXISTING SETUP CONFIGU...

Page 59: ...ransmitting as soon as it perceives an EOT character of 00 Thus if you were to enter an EOT of 00 0D no EOT at all would be transmitted 3 b 3 THERMOCOUPLE TYPE MODEL 3510 ONLY TYPE TYP TYP y CMT or TY...

Page 60: ...NSITIVITY MODEL 3540 ONLY SENSITIVITY SEN SEN s CMT Sets the input sensitivity range to s as given by the following table Sensitivity No s Sensitivity Range 1 0 1 to 5 V 1 1 to 20 V 10 10 to 100 V 3 b...

Page 61: ...to p where p is a percentage of the existing SCALING FACTOR m value to the nearest tenth of a percent HIGH LATCH HLA HLA ON CMT or HLA OFF CMT Sets the HIGH LIMIT LATCH status to ON or OFF LOW LIMIT L...

Page 62: ...or OFF LIMITS LIM LIM ON CMT or LIM OFF CMT Sets the LIMIT STATUS INDICATION to ON or OFF See also the LABEL LBL and ENGINEERING UNIT STRING EUS commands described in Section 5 a 2 3 24 3 SETUP INSTRU...

Page 63: ...CALIBRATION With this kind of calibration the zero and scaling characteristics of all allowable thermocouples are fixed and known Since calibration values for the TC input are prestored in the 3510 s...

Page 64: ...R coefficient m also called multiplier or gain factor Automatically and continuously applied to all subsequent data readings these two calibration constants define the linear proportionality expressed...

Page 65: ...are accurately known For the Model 3578 AC Strain Gage Condi tioner on the other hand it SHOULD NOT BE USED AT ALL For the Model 3540 Frequency Conditioner or Model 3560 Voltage Condi tioner you can u...

Page 66: ...1 Make sure your transducer connection is good see Section 2 a 7 With the 3578 in run mode load the transducer in the positive direction with a convenient deadweight value which is greater than one h...

Page 67: ...t it should be OFF since you just turned ON the positive shunt Press ENTER This will return you temporarily to a display of the live analog input 13 Record the currently displayed data reading 14 Pres...

Page 68: ...is connected OFF that it is not If the positive shunt is cur rently OFF turn it ON by pressing the top or bottom segment of any displayed character followed by ENTER The unit will display SHN for SHUN...

Page 69: ...equivalent input you entered in Step 18 or some other spe cific negative engineering unit value if such a value is given by the transducer manufacturer for the calibration resistor 23 Press the CAL b...

Page 70: ...he 15 segment internal linearization press ENTER and pro ceed to Section 4 c 4 below If not press CAL again The unit will display CALC for CALCULATED calibration If you wish to use CALCULATED calibrat...

Page 71: ...ow lit This button enables you to change the DECIMAL POINT LOCATION of the displayed number during the FORCE procedure below Pressing DEC will move the decimal point one digit to the left or when the...

Page 72: ...If you enter 10 0 then all readings will be rounded to the nearest tenth of a millimeter This same precision will be automatically reflected in the LIMIT parameters HIL and LOL see Section 3 a 8 k Pre...

Page 73: ...N ALSO NOTE Toggling the SHP or SHN display to ON is equivalent to entering a command of SHP ON CMT or SHN ON CMT respectively through the RS 232 485 Interface Toggling a shunt to OFF is equivalent to...

Page 74: ...e present linearization table WHEN YOU RESET THE TABLE YOU ARE IN EFFECT INSTRUCTING THE 3500 INSTRUMENT TO SET THE NUMBER OF ACTIVE LINEARIZATION SEGMENTS TO ZERO Note however that the endpoint defin...

Page 75: ...sting live inputs to desired output values press the button and proceed to Section 4 c 4 c To view the existing linearization table without resetting it or to select linearization by force press ANY K...

Page 76: ...en the physical input is the millivolt value you specified in Step 3 6 Press ENTER again The unit will again display SEG 0 To enter the next point on the linearization curve the endpoint of the first...

Page 77: ...5 will be displayed since this input range corresponds to the endpoints of Segment No 5 The thing to remember is that with linearization by force the displayed SET number is live and will change as t...

Page 78: ...own Before moving to TABLE from FORCE however you should first exit SETUP MODE altogether in order to save the linearization points you have entered so far 4 c 5 CALCULATED CALIBRATION Remember that i...

Page 79: ...applied to the data reading 8 Use the NUMERIC BUTTONS as explained in Section 1 E to change the dis played value to the desired full scale gain value 9 Press ENTER The display will now show the live d...

Page 80: ...TING THROUGH THE RS 485 INTERFACE When proper RS 232 485 communications have been established with an exter nal computer or terminal SETUP commands can be issued to a 3500 Series instrument for remote...

Page 81: ...del 3570 DC STRAIN GAGE CONDITIONER and the Model 3578 AC STRAIN GAGE CONDITIONER SHUNT CALIBRATE POSITIVE SHP ON CMT or SHP OFF CMT Closes or opens the instrument s positive calibration shunt SHP ON...

Page 82: ...h the specified i and o values NOTE The READ form of the LINEARIZE LIN command requires that you specify the segment in question which need not be an active segment see the LNS command above LINn CMT...

Page 83: ...tered an answer of 8000 6400 will be given to a subsequent query of FRQ CMT since 8000 10000 6400 8000 Note The following command applies to the Model 3570 DC STRAIN GAGE CONDITIONER only MV V CALIBRA...

Page 84: ...4 22 This page intentionally blank...

Page 85: ...tructs the unit to transmit the current data for its single measurement channel from the RS 232 485 Interface Port in the format selected by the user The general form of the DUMP DMP command is DMP CM...

Page 86: ...e standard mnemonic com mands listed in Appendix B However WHEN SET TO THE RS 485 MULTINODE MODE an individual node will receive and respond to computer issued com mands ONLY WHEN IT IS THE CURRENTLY...

Page 87: ...mand of PEK ON CMT will place the unit in PEAK MODE if the PEAK terminal is disconnected i e at Logic 0 A command of PEK OFF CMT will return the unit to TRACK MODE 3 By a LOGIC STATE TRANSITION at the...

Page 88: ...cond lower valued peak P2 This is done by returning the unit momentarily to TRACK MODE at time t2 5 4 5 RUN TIME OPERATION 5 b PEAK CAPTURE P1 ANALOG INPUT P2 t0 t1 t2 t3 t4 TRACK PEAK PEAK READING Fi...

Page 89: ...l place the unit in TARE MODE while a transition from Logic 1 to Logic 0 will return it to an untared data reading regardless of the last entered TARE TAR command or the current state of the TARE RESE...

Page 90: ...l halt any transmission in progress When the print transmissions are started by setting the PRINT terminal to Logic 1 the PRINT button is disabled and a transmission can only be stopped by reset ting...

Page 91: ...it to TRACK MODE 2 By a PEAK PEK command applied via the RS 232 485 Interface WHEN THE PEAK TERMINAL OF THE REAR LOGIC I O CONNECTOR IS AT LOGIC 0 A command of PEK ON CMT will place the unit in HOLD M...

Page 92: ...5 8 This page intentionally blank...

Page 93: ...n 16 bit approximately 1 kHz conversion rate transparent auto calibration every 2 seconds Digital Filtering selectable from front panel Limits Three limit zones HI OK LO with front panel annunciation...

Page 94: ...thermistor Thermocouple Break Detection Off scale positive or negative user selectable Normal Mode Range 80 mV operating 5 V without instrument damage Common Mode Range 40 V operating 50 V without in...

Page 95: ...sponse Settling Times See Analog Filtering for Displayed Reading for the Model 3510 above A 2 b MODEL 3530 LVDT CONDITIONER Full Scale Input Ranges Normal 0 150 0 300 and 0 600 mV V Long stroke 0 1 0...

Page 96: ...onfiguration Single ended return to SYSTEM COMMON Full Scale Range 5 V nominal 8 V maximum Offset Range Adjustment 25 5 in 0 1 increments Allowable Loading 5 mA max Offset Accuracy 0 1 max Span Accura...

Page 97: ...nt damage Common Mode Rejection Ratio 70 dB at DC 90 dB at 60 Hz and 3 kHz 80 dB a 1 kHz Input Impedance Differential 200 k Common Mode 50 k Offset Initial 0 02 of full scale vs Temperature 25 ppm C v...

Page 98: ...er transducers may have to be exter nally trimmed to be used with the instrument if zero unbalance exceeds 20 of full scale Actual Absolute Input at which Normal Mode Maximum Display Reading Nominal I...

Page 99: ...niques no input balance control is provided The allowable input range therefore must include any initial unbalance which in commercially produced strain gage transducers is negligible Other transducer...

Page 100: ...put May be sourced by conditioned input A after the FIXED ANA LOG FILTER B after PEAK CAPTURE or C after the SELECTABLE ANALOG FIL TER see Fig 15 Section 2 d Frequency Characteristics and Step Respons...

Page 101: ...WHEN THE INTERFACE PORT IS SET TO RS 485 MODE EVERY MNEMONIC COMMAND OF ANY TYPE VALID OR INVALID will elicit an appro priate response as explained below B 2 THE OPEN OPN COMMAND As mentioned in Secti...

Page 102: ...for the cur rent value of a particular setup parameter It will have the general form MNEMONIC CMT Examples of interrogation commands are EMM CMT FIL CMT ECO CMT and SAV CMT Upon receipt of a valid int...

Page 103: ...CMT Sets to v the ANALOG OUTPUT OFFSET where v is a percentage of full scale to the nearest tenth of a percent between 25 6 and 25 6 For RS 485 only returns ACK EOT AOO CMT Reads current ANALOG OUTPUT...

Page 104: ...t be entered as a hexadecimal byte in square brackets 01 through 1F CMT must be the same for all network nodes and cannot be the ASCII ESC character For RS 485 only returns ACK EOT CMT CMT Reads the c...

Page 105: ...s DC the excitation level of the Model 3570 DC Strain Gage Conditioner v 2 5 or 10 For RS 485 only returns ACK EOT EXC CMT Reads current excitation level Returns v EOT FIL FILTER FIL f CMT Sets to f t...

Page 106: ...LATCH HLA ON CMT Sets the HIGH LIMIT to LATCHING status For RS 485 only returns ACK EOT HLA OFF CMT Sets the HIGH LIMIT to NONLATCHING status For RS 485 only returns ACK EOT HLA CMT Reads current HIGH...

Page 107: ...ized by the Model 3510 Thermocouple Condition er Returns i o EOT LLA LOW LATCH LLA ON CMT Sets the LOW LIMIT to LATCHING status For RS 485 only returns ACK EOT LLA OFF CMT Sets the LOW LIMIT to NONLAT...

Page 108: ...ns with the supervisory computer There must be no space between OPN and the node number n also the node number must not contain a leading zero For RS 485 only returns ACK EOT PEK PEAK PEK ON CMT Place...

Page 109: ...s RNG RANGE RNG r CMT Sets the input range or unit scale to r For allowable r values for each conditioner model see the table in Section 3 b 4 For RS 485 only returns ACK EOT RNG CMT Reads current inp...

Page 110: ...nt status of the positive shunt calibration switch Returns ON EOT or OFF EOT TAR TARE TAR ON CMT Places the 3500 instrument in TARE mode if Terminal 5 of the rear Logic I O Con nector is at Logic 0 Di...

Page 111: ...v 32700 In TWO POINT calibration must precede the FORCE FRC command For RS 485 only returns ACK EOT IMPORTANT THIS COMMAND SHOULD ONLY BE APPLIED WHEN THE 3500 INSTRUMENT IS SET FOR TWO POINT OR CALC...

Page 112: ...B 12 This page intentionally blank...

Page 113: ...culating the b term of the segment an arith metic overrange has occurred in justifying the decimal points Err4 The current range is not legal for this instrument Re enter the range Err5 The engineerin...

Page 114: ...C 2 This page intentionally blank...

Page 115: ...network communications you should always 1 Assign a unique node number to each network node 2 Make sure that every OPEN OPN command observes the proper syntax See Section 5 a 3 and Line 3030 of the G...

Page 116: ...essful completion of subroutine call 1150 1 Instrument responded with NAK 1160 2 Instrument did not successfully open after three tries 1170 3 Timeout error Instrument did not respond 1180 1190 2000 R...

Page 117: ...ton a second time will cause the instrument to return to TRACK MODE When the PEAK logic input terminal is connected to GROUND i e at the Logic 1 level the PEAK TRACK button is DISABLED NOTE The PEAK T...

Page 118: ...oad the TARE REGISTER via the TARE RESET button in SETUP MODE or via the TARE REGISTER TRR command Note also that when the TARE logic input terminal is at Logic 0 a command of TAR ON CMT applied via t...

Page 119: ...ill remain at Logic 1 and the front panel red LO indi cator will remain lit until the live data reading becomes greater than the LOW HYSTERESIS threshold specified by the user If LATCHING is in effect...

Page 120: ...on its next violation if you have set that limit up as a latching limit see Section 3 a 8 For the Model 3570 DC Strain Gage Conditioner ONLY the shunt control inputs shown in Fig 5 b are also negativ...

Page 121: ...F 3 This page intentionally blank...

Page 122: ...Daytronic Corporation 2211 Arbor Blvd Dayton OH 45439 1521 800 668 4745 Tel 937 293 2566 Fax 937 293 2586 www daytronic com...

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