DC Power - Acromag
Contents
1. I 4 TBS elle eelelzee f 7 Doub N H Acromag U 46 45 44 43 42 41 3 36 35 34 33 32 31 ara 3 2 s E Slag CHAN 2 aay o oo PWR CHAN2 EXC POWER SPAN o ZERO D OD Y a Model 632T 0500 Shown CHAN 1 PWR sean EXC CHANT mo K ND 11 12 13 14 15 16 U U ARAAAA AARAAA r y 4 Y a TBi 1 05 T RAIL DIN MOUNTING e 3 90 gt 26 7 DIN EN 50022 35mm 99 1 435 NOTE Dimensions Are INCHES MILLIMETERS 110 5 MODEL 631 632 633T ENCLOSURE DIMENSIONS MODEL 631T 0500 amp 631T 0100 SINGLE CHANNEL CURRENT ISOLATOR TB3 BDIDDIDDD Acromag 36 35 34 33 32 31 Sla g5 51 POWER 631T 0500 DC B 36 35 34 33 32 31 Power Terminal Labeling Q q Shown For Both DC amp AC D C Powered Model Variations POWER CHAN 1 6317 0100 AC OUTPUT 1 POWER PWR GREEN SPAN g OUTPUT 1 ZERO EXC CHANT ZERO amp SPAN ADJUST ig 15 TURN POTS E E 8 8 6317 0500 g K 11 12 13 14 15 16 yam IX REMOVABLE PLUG IN TYPE VVYS SPs TERMINAL BLOCKS TB1 MODEL 632T 0500 amp 632T 0100 DUAL CHANNEL CURRENT ISOLATOR TB4 TB3 AAD AA eo AAD DDD 1 i 5 Acromag O pec 46 45 44 43 42 36 35 34 33 32 318 g gla Slo F CHAN 2 sat ses PWR GREEN POWE2. Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com Series 631 632 633T User s Manual Process Current Isolators Adjustment Procedure CALIBRATION 1 Connect the input signal and output load as required for the channel Note Zero and span pots are to be calibrated For dual output 633T units you may calibrate the turned clockwise to increase outputs one at a time without affecting the opposite output the output signal and counter 2 Adjust the input signal to precisely 4 000mA DC zero Adjust the clockwise to reduce the output output zero pot until the output reads precisely 4 000 0 008mA DC signal 3 Adjust the input signal to precisely 20 000mA DC full scale Adjust the output span pot until the output reads precisely 20 000 0 008mA DC Repeat steps 2 amp 3 until the readings converge As a check of calibration adjust the input signal to precisely 12 000mA and verify the output measurement to within 0 05 of span 0 008mA DC If the measurement error is greater than 0 05 of output span then you should repeat steps 2 4 again until acceptable accuracy is obtained 6 Repeat steps 1 5 for the second channel of 632T units or the second output of 633T units TECHNICAL REFERENCE e Safety Agency Approvals CE UL amp cUL listed plus Class 1 KEY FEATURES Division 2 Groups A B C and D approval e Full Three Way Galvanic Isolation Each input cha
3. GREEN R channel is used calibrate eee lt DD ot B ZERO the channel s output range 15 TURN POTS z RE 8 8 zero endpoint go 12 13 14 15 16 A Span Screw for each output YL channel is used to calibrate PLUG IN TYPE SISISISISIS TERMINAL BLOCKS TB1 the channel s output range full scale endpoint ISOLATION BARRIERS Dashed Lines denote isolation barriers INP PWR s M EXC DC Units OUTPUT INP The input circuit s output circuit s excitation and power circuit are isolated from each other for safety and noise immunily TB4 eeeeooo 42 41 36 35 34 RE ela gt zz CHAN 2 Note the 632T amp 633T units include a single isolated EXC supply with two 24V current limited outputs The 631T includes a single isolated EXC supply with one 24V current limited output 24 EXCJ I power 24V XFMR ISOLATED SECONDARIES AC powered units 0100 suffix are similar except power is connected at different terminals 631 632 633T i gl ISOLATION amp DIAGRAM ARAAAA EXCITATION SUPPLY IS COMMON TO BOTH CHANNELS BUT SEPARATELY CURRENT LIMITED INP OUTPUT Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com Series 631 632 633T User s Manual Proce
4. 20mA into a load resistance up to 10000 All I O terminations include filters and transient voltage suppression to minimize noise and protect the unit from damage due to transients Refer to the simplified schematic shown below to help gain a better understanding of the circuit lt lt ISOLATEDINPUT POWER _ DC POWER SHOWN AC IS SIMILAR 12 36VDC or 90 250VAC VA gt FLTR O Tio SWITCHER 24 y OUTPUT NS O Y ya POWER ISOLATED CH2 w ISOLATED OUTPUT POWER E RD SECONDARIES THIS GROUND IS f 24V _y EXCITATION R L ISOLATED FROM POWER 3 v SUPPLY os FOR DC INPUT MODELS FLTR ALLEGE HGH lt gt P U E MI US OSCILLATOR T ISOLATED INPUT lt 631T CHANNEL SHOWN 632T SIMILARLY ADDS SECOND I O CHANNEL curRENT ciRGUIT LIMITER 2 633T UNIT HAS ONE INPUT 7 s DRIVING TWO OUTPUTS AND IS SIMILAR 63xT SIMPLIFIED ISOLATED OUTPUT SCHEMATIC O S T hi BIAS U TQ i Acromag Inc 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com Series 631 632 633T User s Manual Process Current Isolators 1 1 These models are DIN rail mount DC current input isolators for one or two SPECIFICATIONS input channels and provide one or two isolated output channels with range trim a
5. a supply capable of delivering more than 1A to the unit it is recommended that this current be limited via a high surge tolerant fuse rated for a maximum current of 1A or less see External Fuse Selection at left AC Power 0100 Units Connect 90 250V AC or 125V DC 10 to the power terminals labeled L1 Hot amp L2 Neutral Connect earth ground to the G Ground terminal Observe proper polarity For supply connections use No 14 AWG wires rated for at least 75 C CAUTION Do not exceed 250V AC rms Ti 5 S 8 90 250VAC HOT 3 NEUTRAL 9 INPUT POWER GROUND IS ISOLATED O Pe EARTH GROUND Process Current Isolators CONNECTIONS Power Voltage Current Outpuv EXC 20mA each 632 633T 0500 w EXC 12VDC 419mA 15VDC 317mA 24VDC 179mA 36VDC 121mA 631T 0500 w EXC 12VDC 182mA 15VDC 142mA 24VDC 91mA 36VDC 67mA 632 633T 0100 w EXC 125VDC 33mA 115VAC 75mA rms 230VAC 41mA rms 631T 0100 w EXC 125VDC 115VAC 230VAC 18mA 42mA rms 25mA rms External Fuse Selection Select a time lag or high surge tolerant fuse DC powered units may be fused with a high surge tolerant fuse rated for maximum current of 1A or less see Bel Fuse MJS1 AC powered units may be fused via a 500 250VAC rated time lag fuse example Bel Fuse MRT500 3JS500 or equivalent CAUTION Risk of Elec
6. 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 2 Series 631 632 633T User s Manual General Enclosure amp Physical Environmental CAUTION Risk of Electric Shock More than one disconnect switch may be required to de energize equipment before servicing CAUTION Do not exceed 36VDC peak to avoid damage to the module External Fuse DC Select a high surge tolerant fuse rated for 1A or less to protect unit CAUTION Do not exceed 250Vrms to avoid damage to the module External Fuse AC Select a time lag fuse rated for 250VAC and 500 to protect unit Process Current Isolators Temperature Drift Better than 50ppm C 0 005 C over ambient range Includes the combined effects of zero amp span over temperature Bandwidth 3dB at 50Hz typical with a 5000 load Noise Rejection Normal Mode 6dB 60Hz typical with 5000 load Noise Rejection Common Mode Better than 100dB at 60Hz typical Dimensions 1 05 inches wide 4 68 inches tall 4 35 inches deep Refer to the dimensions drawing at the front of this manual DIN Rail Mount Type EN50022 rail 35mm Connectors Removable plug in type terminal blocks rated for 15A 300V AWG 12 24 stranded or solid copper wire Case Material Self extinguishing NYLON type 6 6 polyamide thermoplastic UL94 V 2 color beige general purpose NEMA Type 1 enclosure Printed Circuit Boards Military grade FR 4 ep
7. 42mA Max 68mA Typ 75mA Max 230VAC 23mA Typ 25mA Max 37mA Typ 41mA 250VAC 22mA Typ 24mA Max 36mA Typ 40mA Max Note Dual channel 632 633T models only The minimum supply voltage is raised to 15VDC or 100VAC if excitation supplies are used Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com Series 631 632 633T User s Manual Process Current Isolators 1 3 Electromagnetic Interference Immunity EMI Unit has demonstrated a Environmental measurement shift less than 0 25 of output span with interference from switching solenoids commutator motors and drill motors Minimum Immunity Per European Norm EN50082 1 Electrostatic Discharge ESD Immunity 4KV direct contact and 8KV air discharge to the enclosure port per EN61000 4 2 Radiated Field Immunity 10V M 80 to 1000MHz AM and 900MHZz keyed carrier per EN61000 4 3 and ENV50204 Electrical Fast Transient Immunity EFT 2KV to power and 1KV to signal I O per EN61000 4 4 Conducted RF Immunity CRFI 10Vrms 150KHz to 80MHz per EN61000 4 6 Surge Immunity 0 5KV per EN61000 4 5 Emissions Per European Norm EN50081 1 Radiated Frequency Emissions 30 to 1000MHz per EN55022 Class B Electromagnetic Compatibility EMC Minimum Immunity Per European Norm EN50082 1 Electrostatic Discharge ESD Immunity 4KV direct contact and 8KV These limits represent the air discharge to the enclosure port per EN61000 4 2 mini
8. Acromag i 63xT Series AC amp DC Powered 4 Wire Process Current Isolators w Input Excitation 631T 0100 AC Powered Single Current Isolator 631T 0500 DC Powered Single Current Isolator 632T 0100 AC Powered Dual Current Isolator 632T 0500 DC Powered Dual Current Isolator 633T 0100 AC Powered Splitter Single In Dual Out Isolator 633T 0500 DC Powered Splitter Single In Dual Out Isolator USER S MANUAL TEREE CHAN 2 y Es v jams im 0 TL BP M f PWR yst e A cz ZERO 4 z i 4 i P ut 1 f p ACROMAG INCORPORATED Tel 248 624 1541 30765 South Wixom Road Fax 248 624 9234 P O BOX 437 Wixom MI 48393 7037 U S A Copyright 2004 2011 Acromag Inc Printed in the USA Data and specifications are subject to change without notice 8500 736 E11E002 Process Current Isolators 2 Series 631 632 633T User s Manual TABLE OF CONTENTS Symbols on equipment Means Refer to User s Manual this manual for additional information The information of this manual may change without notice Acromag makes no warranty of any kind with regard to this material including but not limited to the implied warranties of merchantability and fitness for a particular purpose Further Acromag assumes no responsibility for any errors that may appear in this manual and makes no commitment to update or keep current the i
9. ER CONNECTIONS CABLE SHIELDED Process Current Isolators S AC POWER 16 15 14 13 12 11 NOTE 1 THIS GROUND CONNECTION IS RECOMMENDED FOR BEST RESULTS IF SENSORS ARE INHERENTLY CONNECTED TO GROUND USE CAUTION TO AVOID MAKING ADDITIONAL GROUND CONNECTIONS WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR Y Connect your output load to the output terminals as shown below Repeat this connection for the second output channel of 632T and 633T units NOTE DUAL OUTPUTS OF 633T 0x00 ARE FULLY INDEPENDENT AND ISOLATED FROM ONE ANOTHER FOR ANY OUTPUT FAULT CONDITION OPEN OR SHORT THE OPPOSITE OUTPUT AND THE INPUT ARE NOT AFFECTED NOTE 633T 0x00 MODELS MAY USE ONE OR BOTH EXCITATION SUPPLY CONNECTIONS TB cr NC OUTPUT 1 OF 2 NC E e t lt RioAD DC mA T SHIELDED CABLE FOR LOADS UP TO 1000 OHMS NOTE 1 THIS GROUND CONNECTION S RECOMMENBED FOR BEST RESULTS IF SENSORS ARE INHERENTLY CONNECTED TO GROUND USE CAUTION TO AVOID MAKING ADDITIONAL GROUND CONNECTIONS WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR OUTP
10. HOW IT WORKS Process Current Isolators These isolators isolate one or two DC current input signals according to the model number and provide isolated DC current output signal s with adjustable zero and span trim DC powered units employ a wide input switching regulator isolated flyback to power each output circuit and the input excitation supply AC powered units employ a unique universal input switching circuit to power each output circuit and the excitation supply A single isolated excitation supply is shared between both channels but it has separate current limited outputs The input circuit employs a unique current transfer circuit that isolates the signal without generating a large voltage drop Each input is separately isolated An isolated secondary is used to generate an input excitation supply with dual 24V outputs 23mA each suitable for powering one or two 2 wire transmitters Each excitation supply output is current limited to prevent any short at one channel from pulling down the internal power supply or the opposite output Note that if this supply is shared by both inputs of dual input units the resulting circuit is isolated as a group but not channel to channel The isolated current signal is modulated and passed through a high side zero and span adjustment circuit that will add or subtract loop current as required to precisely set the output range A 24V high side voltage is used to drive this circuit which will source
11. LDED 16 15 14 13 12 11 2 WIRE INPUT TRANSMITTER CONNECTIONS USING INTERNAL EXCITATION SOURCE POWER NOTE 1 IMPORTANT REMOVE RTN JUMPER IF AN EXTERNAL EXCITATION SUPPLY IS USED NOTE 1 THIS GROUND CONNECTION IS RECOMMENDED FOR BEST RESULTS IF SENSORS ARE INHERENTLY CONNECTED TO GROUND USE CAUTION TO AVOID MAKING ADDITIONAL GROUND CONNECTIONS WHICH COULD GENERATE GROUND LOOPS AND MEASUREMENT ERROR MODU ers wx USE YOUR FINGER TO APPLY 19 DOWNWARD PRESSURE HERI AS YOU LIFT AND TILT MODULE CONNECTIONS DIN Rail Mounting amp Removal Current Input s Input is DC current only 632T inputs are isolated channel to channel 633T input is connected to input 2 at TB4 Two Wire Transmitter Connections With Input Excitation Loop Power Excitation supply outputs are separately current limited to 23mA each The excitation supply output is isolated from the input circuit As such EXC RTN and IN must be jumpered together to complete the circuit as shown at right Do not include the RTN jumper if an external excitation supply is used Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 6 CONNECTIONS Current Input s Four Wire Transmitter Connections Current Output s Signal Splitter 633T Series 631 632 633T User s Manual 4 WIRE INPUT TRANSMITT
12. Model Numbers 11 11 11 Excitation 11 General Specifications 11 Enclosure and Physical 12 Environmental esee 12 Agency 13 Controls amp Indicators 13 Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com Series 631 632 633T User s Manual
13. R CHAN2 EXC POWER 632T 0500 DC SPAN 2m OUTPUT 2 ZERO zero amp SPAN ADJUST 36 35 34 33 32 31 g 15 TURN POTS Power Terminal Labeling a FN Shown For Both DC amp AC 3 5 D C Powered Model Variations POWER CHAN 1 6327 0100 AC OUTPUT 1 POWER Pn GREEN SPAN __ OUTPUT 1 ZERO EXC CHANT ZERO amp SPAN ADJUST zla E 15 TURN POTS nm 11 12 13 14 15 16 E j AUR PES REMOVABLE PLUG IN TYPE TERMINAL BLOCKS TB1 Process Current Isolators 3 MOUNTING AND DIMENSIONS Unit mounts to T type DIN rails 35mm type EN50022 Units may be mounted side by side on 1 inch centers WARNING IEC Safety Standards may require that this device be mounted within an approved metal enclosure or sub system particularly for applications with exposure to voltages greater than or equal to 75VDC or 50VAC CONTROLS amp INDICATORS 631T 0500 amp 631T 0100 DC amp AC Powered Single Channel Current Isolators A Green Power LED is ON if power is on at the output A Zero Screw is used to calibrate the output range zero endpoint A Span Screw is used to calibrate the output range full scale endpoint 632T 0500 amp 632T 0100 DC amp AC Powered Dual Channel Current Isolators A green Power LED for ea
14. UT CONNECTIONS ST DIE FOR LOADS UP S E SHIELDED Qj nie TO 1000 OHMS CABLE S nis lt E Ie gt e OC mar D 1 SHIELDED TBT TB4 1 CABLE OUTPUT 2 OF 2 E zave o amp our c S a N RTN 6 OuT lt DC mA R FOR LOADS UP fe Signal Splitter S mw x t S LOAD TO 1000 OHMS 2 x ine S 5 2 ours o FIN S ES our 8 ui 424v x CT WARD A ARNEL moe lt l SHIELDED CABLE NOTE 1 AC POWER Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com Series 631 632 633T User s Manual Y DC Power 0500 Units Connect 12 36V DC to the power terminals labeled DC amp DC Observe proper polarity For supply connections use No 14 AWG wires rated for at least 75 C CAUTION Do not exceed 36VDC peak 12 TO 36VDC INPUT POWER IS ISOLATED GROUND IMPORTANT Dual channel 632 633T 0500 models If internal excitation is used the minimum supply voltage is raised to 15VDC 0500 units and 100VAC 0100 units WARNING DO NOT CONNECT AC POWER TO A DC POWERED UNIT OR DAMAGE TO THE UNIT WILL OCCUR Refer to your module s label and verify that your model number has a 0100 suffix before connecting unit to AC power IMPORTANT External Fuse DC Units If unit is powered from
15. ch output channel is ON if power is on at the channel A Zero Screw for each output channel is used to calibrate the output range zero endpoint A Span Screw for each output channel is used to calibrate the output range full scale endpoint Acromag Inc 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 4 Series 631 632 633T User s Manual Process Current Isolators MODEL 633T 0500 amp 633T 0100 eit on SINGLE INPUT amp DUAL OUTPUT CURRENT ISOLATOR eeeeoo 633T 0500 amp 633T 0100 f DC amp AC Powered Single es 45 44 43 42 41 8 36 35 34 33 32 37 2 Input w Dual Output ANG s Ea g g gl Channel Current Isolators pn QUTPUT 2 POWER el OUTPUT 2 ZERO Note n amp SPAN ADJUST 33 32 31 A ipa en each 15 TURN POTS Power Terminal Labeling G I 1 wer Shown For Both DC amp AC S d pu ee h po 9 gt C Pone Model Variations POWER is on at the output channel THANA 6337 0100 AC A Zero Screw for each output
16. djustment Units are DC powered with reverse polarity protection or universal AC powered and include an isolated input excitation supply with dual current limited outputs The inputs outputs excitation and power circuits are isolated from each other The model prefix 63xT denotes the Series 630 I O Transmitter family The Model Numbers T suffix denotes Transmitter The four digit suffix of this model number represents the following options respectively 0 Default 1 or 5 631T 0x00 Single In Out Universal AC 125VDC or 12 36VDC Power respectively 00 Default 632T 0x00 Dual In Dual Out 633T 0x00 One In Dual Out One or two input channels for DC current applications only Input includes Input an isolated excitation power supply for powering 2 wire transmitters see Connections Section for details DC Current 4 to 20mA DC IMPORTANT Input current must not exceed 100mA or damage to the unit may occur The input to 633T units is connected at input channel 2 Input Forward Voltage Drop Less than 1 5V 1 1V typical at full scale 631 632T or 3V 2 3V typical at full scale 633T Input Overvoltage Protection Bipolar Transient Voltage Suppressers TVS 5 6V working 7 6V clamp level typical Input Reverse Polarity Protection Diode included Input Response Time For a step input the output reaches 98 of calibrated span in less than 25ms typical with a 5000 load Input Excitation Is
17. mum requirements of the Radiated Field Immunity 10V M 80 to 1000MHz AM and standard but product has 900MHZz keyed carrier per EN61000 4 3 and ENV50204 lypically been tested to comply Electrical Fast Transient Immunity EFT 2KV to power and 1KV to with higher standards in some signal I O per EN61000 4 4 cases IMPORTANT Power input and output I O wiring must be in accordance with Class Division 2 wiring methods of Article 501 4 b of the National Electrical Code NFPA 70 for installations in the US or as specified in section 18 1J2 of the Canadian Electrical Code for installations within Canada and in accordance with the authority having jurisdiction This equipment is suitable for use in Class I Division 2 Groups A B C and D or non hazardous locations only WARNING EXPLOSION HAZARD Substitution of components may impair suitability for Class Division 2 WARNING EXPLOSION HAZARD Do not disconnect equipment unless power has been switched off or the area is known to be non hazardous Safety Approvals CE marked EMC Directive 89 336 EEC UL Listed Agency Approvals UL508 17 Edition ANSI ISA 12 12 01 2007 Edition cUL Listed Canada Standard C22 2 Nos 142 M1987 and 213 M1987 Hazardous Locations Class Division 2 Groups A B C D LED Indicators Controls amp Indicators PWR Green One per output channel Constant ON if power is on Controls Zero Adjust One per output A 15 turn
18. nformation contained in this manual No part of this manual may be copied or reproduced in any form without the prior written consent of Acromag Inc IMPORTANT SAFETY CONSIDERATIONS You must consider the possible negative effects of power wiring component sensor or software failure in the design of any type of control or monitoring system This is very important where property loss or human life is involved It is important that you perform satisfactory overall system design and it is agreed between you and Acromag that this is your responsibility GETTING STARTED MOUNTING AND DIMENSIONS 3 CONTROLS amp INDICATORS 3 ISOLATION BARRIERS eese 4 CONNECTIONS 1er renti HERR nnne 5 DIN Rail Mounting And Remowval 5 Current nnna 5 Current Output s eseessuss 6 Signal Splitter 633T 6 7 Earth Gro nd ocio ice degener 8 CALIBRATION 1er retur ene ere Err nnne 8 Calibration Connections 8 TECHNICAL REFERENCE KEY FEATURES tics 9 HOW IT WORKS eene 10 Simplified Schematic 10 SPECIFICATIONS ene heus 11
19. nnel each output channel the excitation supply and power are all isolated from each other for safety and increased noise immunity e Built In Excitation Supply Independently isolated dual output 22V 22mA excitation supply can be used to power one or two 2 wire transmitters Excitation outputs are independently current limited e Low Input Burden Less than 1 5V drop for full scale current 631 632T units Less than 3V for 633T signal splitter units e Flexible AC or DC Power Select a 12 36V DC or universal 90 250VAC 125VDC input powered unit DC powered units are diode coupled for use with redundant supplies and or battery back up e Wide 0 to 1000 Ohm Load Range Can drive 20mA into 10000 e Current Limited Output Output is safely limited to 27mA e NoLoad Trimming Required You do not have to recalibrate the output if the load resistance is varied e Plug In Terminal Blocks amp DIN Rail Mount Makes mounting removal and replacement easy e Hardened For Harsh Environments For protection from RFI EMI ESD EFT amp surges Has low radiated emissions per CE requirements e Wide Ambient Operation Reliable over a wide temperature range e Zero amp Span Trim Pots 496 15 turn trim adjustments for maintaining long term zero and span calibration and accuracy Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 1 Q Series 631 632 633T User s Manual
20. olated 22V DC minimum at 22mA current limited near 23mA See Excitation Supply specification below DC Current 4 to 20mA DC Output Output Limiting Output is limited to less than 28mA nominal Output Load 10000 minimum 631T 9500 minimum 632 633T 10400 typical without excitation load Output Ripple Less than 0 1 of maximum output span Output Load Resistance Effect Less than 0 01 of output span effect for a 1000 change in load resistance Output Reverse Voltage Protection Diode included Output Trim Range Zero adjustment to 4mA 4 and span adjustment to 16mA 4 May optionally power one or two 2 wire transmitters that may be driving the Excitation Supply isolator input s Supply is fully isolated with two separate current limited outputs at EXC1 amp EXC2 632T 633T These outputs are common to each other and isolated together from the input output and power circuits Voltage 27 22V range each 22VDC at 22mA typical Current Current is limited near 23mA each Note that EXC voltage will fold back if load attempts to draw current beyond limit current Ripple 100mVp p typical Reference Test Conditions O 4 to 20mA Load 5000 Ambient 25 C General Power 24VDC or 115VAC Accuracy Accuracy is better than 0 05 of output span typical This includes the effects of repeatability hysteresis terminal point linearity and adjustment resolution but does not include sensor error Acromag Inc Tel
21. oxy glass Shipping Weight 1 pound 0 45 Kg packed Operating Temperature 25 C to 75 C 13 F to 167 F Temperature Code T4 Dual channel 632 633T units only If excitation supplies are used maximum temperature is derated to 60 C 140 F Storage Temperature 40 C to 85 C 40 F to 185 F Relative Humidity 5 to 9596 non condensing Isolation Each input each output excitation supply amp power circuit are isolated from each other for common mode voltages up to 250VAC or 354V DC off DC ground on a continuous basis will withstand 1500VAC dielectric strength test for one minute without breakdown Complies with test requirements of ANSI ISA 82 01 1988 for voltage rating specified Installation Category Designed to operate in an installation in a Pollution Degree 2 environment with an installation category over voltage category II rating Power Requirements AC or DC Powered Models See tables for current Data provided with full scale output each channel and excitation at 20mA each If excitation supplies are not used you can reduce power consumption up to 30 AC or 40 DC DC Powered Units 12 36V DC SELV Safety Extra Low Voltage Observe proper polarity 15VDC 129mA Typ 142mA Max 288mA Typ 317mA Max AC Powered Units 90 250VAC or 125VDC 10 Supply 631T 0100 632 633T 0100 125VDC 16mA Typ 18mA Max 30mA Typ 33mA Max 90VAC 46mA Typ 51mA Max 82mA Typ 90mA Max 115VAC 38mA Typ
22. potentiometer for making output zero range adjustments to 4mA 4 refer to Calibration Span Adjust One per output A 15 turn potentiometer for making output span range adjustments to 16mA 4 refer to Calibration
23. practices may be unsafe and hurt performance Calibration is performed as an iterative process of zero and span adjustment for each output channel The zero and span adjustment potentiometers are accessible from the front panel of the unit Always start by calibrating zero first before span Further allow the module to warm up a few minutes prior to calibration The screwdriver blade used to adjust these pots should not be more than 0 1 inch 2 54mm wide Equipment Required e An accurate input current source adjustable for 4 and 20 mA DC Surce should be accurate to better than 0 05 for best results Ancurrent or voltage meter accurate to better than 0 05 is required to monitor the output level e Aprecision current meter or a precision load resistance and volt meter will be needed to monitor the output current for calibration Your success in recalibrating the output will strongly depend upon the accuracy and precision of your signal source and measurement system EXAMPLE CALIBRATION CONNECTIONS ADJUSTABLE 4 20 3 gt OR CALIBRATOR DC CURRENT METER ALTERNATE CALIBRATION CONNECTIONS 16 15 14 13 12 11 4 20mA 1 AY Rioad ADJUSTABLE PRECISION CURRENT SOURCE 2ooooo 4 wo A
24. ss Current Isolators 5 When attaching the module to the T type DIN rail angle the top of the PUSH unit towards the rail and locate the top groove of the adapter over the upper lip of the rail Firmly push the eleleeele allele Row RAL unit towards the rail until it snaps into M um place To remove first separate the eae ae ag Tes wale ag terminal block s from the bottom as 8 side of the module to create a B clearance to the DIN mounting area Next while holding the module in Any 63xT Module place from above insert a screwdriver into the lower arm of the Exe oar DIN rail connector and use it as a 83 Y lever to force the connector down e until the unit disengages from the do not twist the screwdriver to avoid damaging plastic Remove Terminal Blocks On This Side To Provide Clearance PRY WITH SCREWDRIVER INSERTED IN SLOT HERE DO NOT TWIST TO AVOID DAMAGING PLASTIC TAB PUSH SCREWDRIVER AS SHOWN TO TILT AND LIFT MODULE OFF RAIL Y Connect your DC current input signal to the input terminals as shown below according to your input source Repeat this connection for the second input channel of 632T units at TB4 Use input channel 2 at TB4 when connecting to 633T units INPUT CONNECTIONS TO CURRENT SOURCE SHIE
25. tric Shock More than one disconnect switch may be required to de energize this equipment before servicing Acromag Inc Tel 248 624 1541 Fax 248 624 9234 Email sales acromag com http www acromag com 8 Series 631 632 633T User s Manual Process Current Isolators Earth Ground CALIBRATION IMPORTANT This module has already been calibrated at the factory and recalibration is not normally required except as necessary to correct for long term component aging or to satisfy your company s maintenance requirements Do not attempt to recalibrate this module unless absolutely required as miscalibration will negatively affect the module s performance TIP Verify that current meter range is properly set to measure DC current for a 0 25mA DC range If no reading is obtained on current meter check that the meter has power or that its fuse is not blown To help prevent ESD damage to the circuit use a grounded screwdriver to make zero and span adjustments Y Connect Earth Ground as shown in the connection drawings above The plastic module housing does not require earth ground The ground connections noted are recommended for best results If sensors are already grounded use caution and avoid making additional ground connections which could create ground loops Warning To comply with safety and performance standards use shielded cable and connect earth ground as noted Failure to use good wiring and grounding
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