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Honeywell APT4000PH, User Manual

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Honeywell APT4000PH User Manual Download Page 48

94

APT4000PH

Appendix

Product line and accessories

Devices

Order No.

pH/ORP Analyzer

APT4000PH

Mounting accessories

Pipe-mount kit

51205988-001

Panel-mount kit

51205990-001

Protective hood

51205989-001

95

pH/mV input

Input for pH or ORP electrodes or DURAFET II

Measurement range

-1500 to +1500 mV

Display range

pH value

-2.00 to 16.00

ORP

-1999 to +1999 mV

Glass electrode input

1

)

Input resistance

> 0.5 x 10

12

Ohms

Input current

< 2 x 10

-12

A

Reference electrode input

1

)

Input resistance

> 1 x 10

10

Ohms

Input current

< 1 x 10

-10

A

Meas. error

1,2,3)

pH value

< 0.02 

TC: 0.002 pH/K (display)

mV value

< 1 mV

TC: 0.1 mV/K

Electrode standardization pH 

*)

pH calibration

Operating modes

BUF
Buffer sets Calimatic calibration with automatic 

buffer recognition:
-01-

Mettler-Toledo
2.00/4.01/7.00/9.21

-02-

Merck/Riedel de Haen
2.00/4.00/7.00/9.00/12.00

-03-

Ciba (94)
2.06/4.00/7.00/10.00

-04-

NIST technical
1.68/4.00/7.00/10.01/12.46

-05-

NIST standard
1.679/4.006/6.865/9.180

-06-

HACH
4.00/7.00/10.18

-07-

WTW technical buffers
2.00/4.01/7.00/10.00

MAN

Calibration with manual entry of individual
buffer values

DAT

Data entry of premeasured electrodes

Specifications

Summary of Contents for APT4000PH

Page 1: ...APT4000 Series 4 Wire pH Analyzers User Manual 70 82 25 103 Revision 2 09 03 ...

Page 2: ... of merchantability and fitness for a particular purpose Specifications may change without notice The information we supply is believed to be accurate and reliable as of this printing However we assume no responsibility for this use While we provide application assistance personally through our literature and the Honeywell web site it is up to the customer to determine the suitability of the produ...

Page 3: ...serve the following instruc tions The analyzer has been designed in accordance with the state of the art and complying with the applicable safety regulations When operating the analyzer certain conditions may neverthe less lead to danger for the operator or damage to the analyzer Caution Commissioning may only be carried out by trained experts Whenever it is likely that protection has been impaire...

Page 4: ...istered trademarks For practical reasons they are shown without trademark symbol in this manual DURAFET MEREDIAN are registered trademarks of Honeywell Inc USA EasyClean is a registered trademark of Mettler Toledo GmbH Switzerland Sensocheck Sensoface Calimatic GainCheck are registered trademarks of Knick GmbH Co KG Germany 7 Overview of APT4000PH 1 2 3 E D C 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18...

Page 5: ...ieces for sealing in case of wall mounting 1 Jumper 2 pieces 2 Washer 1 piece for conduit mounting Place washer between enclosure and nut 3 Cable ties 3 pieces 4 Hinge pin 1 piece insertable from either side 5 Enclosure screws 4 pieces Fig 1 Assembling the enclosure 9 Mounting plan 144 144 15 42 84 80 32 21 43 105 27 72 6 2 1 2 3 4 1 Cable gland 3 pieces 2 Breakthroughs for cable gland or conduit ...

Page 6: ...e 4 For vertical or horizontal posts or pipes 5 Self tapping screws 4 pieces 1 132 165 173 1 Fig 4 51205989 001 protective hood for wall and pipe mounting Pipe mounting panel mounting All dimensions in mm 11 1 2 3 4 5 max 25 78 27 1 22 1 Screws 4 pieces 2 Gasket 1 piece 3 Control panel 4 Span pieces 4 pieces 5 Threaded sleeves 4 pieces Fig 5 51205990 001 panel mount kit All dimensions in mm ...

Page 7: ...n must be carried out by the system administrator The terminals are suitable for single wires and flexible leads up to 2 5 mm2 AWG 14 Terminal assignments Fig 6 Terminal assignments APT4000PH 13 1 ESD shield covering the signal inputs Screw off for assembly Note The cable shield must end under the ESD shield Cut lines if required 2 Terminals for temperature probe and outer shield 3 Terminals for e...

Page 8: ...lectrode Example 1 pH measurement with monitoring of glass electrode Sensor connections APT4000PH 15 Temperature probe Glass electrode Example 2 pH measurement with monitoring of glass electrode and reference electrode Sensor connections APT4000PH Reference electrode ...

Page 9: ...asurement with DURAFET II electrode orange red wt rd bk yw gn bu bk wt bk Do not connect Sensor connections APT4000PH Must use cap adapter cable 17 Example 4 pH measurement with MEREDIAN electrode wt wt wt bk or core Sensor connections APT4000PH ...

Page 10: ...xample 5 ORP measurement without monitoring of reference electrode Temperature probe Sensor connections APT4000PH 19 Example 6 ORP measurement with monitoring of reference electrode Temperature probe Sensor connections APT4000PH ...

Page 11: ...n e g RIFA PMR 209 Typical RC combinations for 230 V AC Capacitor 0 1µF 630V Resistor 100 Ohms 1 W 3 Contact Protective wiring of switching outputs 21 A DC application with inductive load B AC DC applications with capacitive load C Connection of incandescent lamps A1 Inductive load A2 Free wheeling diode e g 1N4007 Observe polarity A3 Contact B1 Capacitive load B2 Resistor e g 8 Ohms 1 W at 24 V 0...

Page 12: ...code entry 2 Display of meas variable 3 Temperature 4 Current output 5 Limit values 6 Alarm 7 Sensocheck 8 Calibration 9 Interval response time 10 Wash contact 11 Measurement symbols 12 Proceed with ENTER 13 Bar for identifying the device status above mode indicators from left to right Measuring mode Calibration mode Alarm Wash contact active Configuration mode 14 Lower display 15 Manual temp indi...

Page 13: ...alibration are evaluated The three Sensoface indicators provide the user with infor mation about wear and required maintenance of the sensor Note When measuring with DURAFET electrodes Sensocheck is not active GainCheck device self test A display test is carried out the software version is displayed and the memory and measured value transfer are checked Start GainCheck device self test Automatic d...

Page 14: ...irable reactions of the connected peripher als due to incorrect configuration or calibration The measured value and Hold are displayed alternately The APT4000PH only returns to measuring mode after ENTER is pressed and a waiting time of 20 s has passed 27 To activate the Hold mode from outside The Hold mode can be activated from outside by sending a signal to the Hold input e g from the process co...

Page 15: ...ored Input must be repeated End End with CONF The measured value and Hold are displayed alter nately enter flashes End Hold mode with ENTER The display shows the measured value The output current remains frozen for another 20 s Hold icon on hourglass flashes Hold icon 29 Menu group Code Output 1 o1 Output 2 o2 Temperature compensation tc Calibration mode CA Alarm settings AL Relay Controller rL Ri...

Page 16: ... 0000 9999 h 0000 h 31 Menu Code Selection Default ALrt Alarm settings AL Select Sensocheck Enter alarm delay LED in Hold mode rLAY Relay 1 2 Limit values controller rL Select limit function controller Select contact function L1 Select contact response Enter switching point Enter hysteresis Enter delay Select contact function L2 Enter controller setpoint Ct Enter neutral zone P Controller gain KP ...

Page 17: ... represented in gray are flashing and can be edited Code Display Action Choices o1 Select configuration Press CONF Enter mode code 1200 Select position with key and edit number with key When the display reads 1200 press ENTER to confirm The APT4000PH is in Hold mode Hold icon is on Select measured variable pH ORP Select with key Proceed with ENTER pH ORP Only with pH selected Select electrode type...

Page 18: ...ey Proceed with ENTER Current beginning Enter lower end of scale depending on measured variable selected pH or ORP Select with key edit number with key proceed with ENTER 00 00 pH pH 2 16 ORP 1500 mV to 1500 mV Current end Enter upper end of scale depending on measured variable selected pH or ORP Select with key edit number with key proceed with ENTER 14 00 pH pH 2 16 ORP 1500 mV to 1500 mV Output...

Page 19: ... Default setting 0 s inactive To specify a time constant Select with key edit number with key proceed with ENTER Time constant of output filter To smoothen the current output a low pass filter with adjustable filter time constant can be switched on When there is a jump at the input 100 the output level is 63 after the time constant has been reached The time constant can be set from 0 to 120 s If t...

Page 20: ...gnal for error message Select with key Proceed with ENTER Output signal during Hold LAST During Hold the last measured value is maintained at the output FIX During Hold a value to be entered is maintained at the output Select with key Proceed with ENTER LAST FIX Only with FIX selected Enter current which is to flow at the output during Hold Select with key edit number with key proceed with ENTER 0...

Page 21: ...erature probe Select with key Proceed with ENTER NTC8 55 NTC30 PT100 PT1000 4 20 mA 0 20 mA Set output current range Select with key Proceed with ENTER Current beginning Enter lower end of scale Select with key edit number with key proceed with ENTER 000 0 C XXX X Current end Enter upper end of scale Select with key edit number with key proceed with ENTER 100 0 C XXX X Output current Process tempe...

Page 22: ...lter Default setting 0 s inactive To specify a time constant Select with key edit number with key proceed with ENTER Time constant of output filter To smoothen the current output 2 a low pass filter with adjustable filter time constant can be switched on When there is a jump at the input 100 the output level is 63 after the time constant has been reached The time constant can be set from 0 to 120 ...

Page 23: ...or error message Select with key Proceed with ENTER Output signal during Hold LAST During Hold the last measured value is maintained at the output FIX During Hold a value to be entered is maintained at the output Select with key Proceed with ENTER LAST FIX Only with FIX selected Enter current which is to flow at the output during Hold Select with key edit number with key proceed with ENTER 021 0 m...

Page 24: ...be MAN Manual temperature input Select with key proceed with ENTER Only with manual temp detection selected MAN Enter temperature Select position with key edit number with key proceed with ENTER 25 C XXX X Select temp detection during calibration Auto MAN Select with key proceed with ENTER AUT MAN Only with manual temp detection selected MAN Enter temperature Select position with key edit number w...

Page 25: ... your buffer set 01 BUF Mettler Toledo 02 BUF Merck Titrisols Riedel Fixanals 03 BUF Ciba 94 04 BUF NIST technical buffers 05 BUF NIST standard buffers 06 BUF HACH buffers 07 BUF WTW technical buffers MAN Calibration with manual buffer entry DAT Entry of asymmetry potential and slope of premeasured electrodes Select with key proceed with ENTER Enter calibration interval Entry of time interval with...

Page 26: ...messages can also be signaled by a 22 mA output current see Pg 39 The operating behavior of the alarm contact is shown on Pg 90 The alarm delay acts on the LED the 22 mA signal and the alarm contact 45 86 51 Code Display Action Choices ON OFF AL Select Sensocheck continuous monitoring of glass and reference electrode not available with DURAFET II pH electrode Select with key proceed with ENTER Ala...

Page 27: ...Selecting CtROL leads to Controller menu group Ct Lo Hi Limit 1 function see Page 55 Select with key proceed with ENTER Limit 1 contact response N C normally closed contact N O normally open contact Select with key proceed with ENTER N O N C Limit 1 switching point Select with key edit number with key proceed with ENTER 00 00 pH XX XX pH XXXX mV Limit 1 hysteresis Select with key edit number with ...

Page 28: ...tact response N C normally closed contact N O normally open contact Select with key proceed with ENTER N O N C Limit 2 switching point Select with key edit number with key proceed with ENTER 14 00 pH XX XX pH XXXX mV Limit 2 hysteresis Select with key edit number with key proceed with ENTER 00 50 pH XX XX pH XXXX mV Limit 2 delay The contact is activated with delay deactivated without delay Select...

Page 29: ...edit number with key proceed with ENTER Controller P action component Select with key edit number with key proceed with ENTER 57 Code Display Action Choices Ct 0100 0010 to 9999 Controller I action component reset time Select with key edit number with key proceed with ENTER 0000 SEC 0000 to 9999 SEC Controller D action component Rate time Select with key edit number with key proceed with ENTER 000...

Page 30: ...EC Contact type Select with key Proceed with ENTER N O N C 59 EASYCLN Code Display Action calibration probe Selection Pb Calibration probe EasyClean Select with key Proceed with ENTER Cleaning interval EasyClean only Select with key edit number with key proceed with ENTER 000 0 h XXX X h 000 0 h XXX X h Calibration interval EasyClean only Select with key edit number with key proceed with ENTER Off...

Page 31: ...current 021 0 mA o2 Unit C F C o2 Temp probe 8 55 NTC o2 0 4 20mA 4 20 mA o2 Current beginning 000 0 C o2 Current end 100 0 C o2 Filter time 0 sec o2 22mA signal OFF o2 Hold behavior LAST o2 Fix current 021 0 mA tc TC measurement Auto tc Measuring temp 025 0 C tc TC calibration Auto tc Calibration temp 025 0 C tc TC medium 00 00 K CA Cal solution 04 BUF CA Cal interval 0000 h AL Sensocheck OFF AL ...

Page 32: ...Alarm delay ____________ ____________ AL LED Hold ____________ ____________ Parameter set user settings 63 Code Parameter Setting rL Relay function ____________ ____________ L1 Contact function ____________ ____________ L1 Contact response ____________ ____________ L1 Switching point ____________ ____________ L1 Hysteresis ____________ ____________ L1 Delay ____________ ____________ L2 Contact fun...

Page 33: ...ode characteristics namely asymmetry potential and slope Calibration can be performed with Calimatic automatic buffer recognition with manual buffer input by entering premea sured electrode data or by sampling the product When using DURAFET electrodes you must adjust the zero point first Then you can conduct either a one or a two point calibration Caution All calibration procedures must be perform...

Page 34: ...yed The hourglass icon is flashing Note Stability check can be stopped by pressing CAL However this reduces calibration accuracy 67 Display Action Remark At the end of the adjustment pro cedure asymmetry potential mV based on 25 C of the electrode are displayed Proceed with ENTER These is not the final electrode value Zero and slope must be determined with a complete 2 point cali bration cal 1100 ...

Page 35: ...The analyzer can only operate properly when the buffer solutions used correspond to the configured set Other buffer solutions even those with the same nominal values may demonstrate a different temperature behavior This leads to measure ment errors 69 Display Action Remark Stability check The measured mV value is dis played To abort stability check Press CAL accuracy reduced Calibration with the f...

Page 36: ...buffer solution used in the analyzer for the proper temperature This presetting enables calibration with any desired buffer solution The MAN calibration mode and the type of temperature detection are selected in the configuration mode 71 Display Action Remark Stability check The measured mV value is dis played To abort stability check Press CAL accuracy reduced Calibration with the first buffer is...

Page 37: ...trode The values must be known e g determined beforehand in the laboratory The DAT calibration mode must be preset in the configuration mode Enter slope Select with key edit number with key proceed with ENTER The APT4000PH displays the new slope and asymmetry potential at 25 C Proceed with ENTER pH value and Hold are displayed alternately Proceed with ENTER Hold is deactivated after 20 sec Securit...

Page 38: ...se the old calibration values are stored Afterwards you can start a new product calibration Display Action Remark Product calibration step 1 Press CAL key enter code 1105 Select with key edit number with key proceed with ENTER Take sample and store value Proceed with ENTER If an invalid code is entered the APT4000PH returns to measuring mode Now the sample can be measured in the lab 75 Display Act...

Page 39: ...otential see table of the reference electrode used must be entered During measure ment this value is then added to the ORP measured Please make sure that measurement and calibration tempera ture are the same since the temperature response of the refer ence electrode is not automatically taken into account 77 Display Action Remark Activate calibration Press CAL Enter mode code 1100 Select with key ...

Page 40: ... for measured value stabilization approx 20 sec 79 Display of output currents Press ENTER while in measuring mode The current at output 1 is shown in the main display the current at output 2 in the secondary display After 5 sec the APT4000PH returns to measuring mode Diagnostics functions Display Remark Display of calibration data Cal Info Press CAL while in measuring mode and enter code 0000 The ...

Page 41: ...ut 2 can be edited Select with key edit number with key proceed with ENTER The actually measured current is shown in the secondary display The APT4000PH is in Hold mode Press ENTER to return to measurement Test 0 1 Return to measurement 81 The arrows indi cate which relay valve is active Controller characteristic 100 100 Relay 2 active Meas value setpoint Relay 1 active Meas value setpoint Setpoin...

Page 42: ...ler equations Controller output Y YP YPdt TD I action D action dYP dt 1 TR P action Proportional action YP Setpoint Meas value Constant YP KC with YP Proportional action TR Reset time s TD Rate time s KC Controller gain Constant 5 for pH 500 mV for ORP 100 50 Xw Process variables pH mV Controller output Y KC 500 KC 200 KC 100 KC 50 1 100 2 200 3 300 4 400 5 500 Proportional action Gradient KC Devi...

Page 43: ...e actuator The Contact ON time is constant It is automatically calculated from the user defined maximum pulse frequency Output signal switching contact of pulse frequency controller ON time Pulse frequency Y 20 1 0 1 0 Pulse frequency Y 80 Output signal switching contact of pulse length controller ON time Y 80 ON time Y 20 Pulse length 1 0 1 0 85 Operation with automatic cleaning system The APT400...

Page 44: ...tive This error message only occurs in the case of a complete defect The analyz er must be repaired and recalibrated at the factory ERR 99 FAIL flashes x x x x Sensocheck Glass electrode Reference electrode 87 Alarm contact Red LED Out 1 22 mA Out 2 22 mA Current output 1 Current below 0 3 8 mA Error Symbol flash ing Problem Possible causes ERR 11 x x x Temperature probe Open or short circuit Temp...

Page 45: ...to configured buffer set Temperature probe not immersed in buffer solution for automatic temperature compensation Wrong buffer temperature set for manual temperature specification Electrode used has different nominal slope 89 Problems during recognition of the buffer solution continued During manual calibration the buffer solutions were not used in the specified order Buffer solutions contaminated...

Page 46: ... cal 1 CAL 1105 Product cal 2 CAL 1105 Configuration CONF 1200 20 min Parameter set 1 2 CONF 7654 20 min Sensor monitor CONF 2222 20 min Current source 1 CONF 5555 20 min Current source 2 CONF 5556 20 min Relay test CONF 5557 20 min Manual controller CONF 5559 20 min Rinsing function Hold input Alarm contact Wash contact LED Time out Operating state Rel 1 2 Controller Rel 1 2 Limit value Out 2 Out...

Page 47: ...d calibration ranges and the conditions for a friendly neutral or sad Sensoface are summarized in the following chart Additional icons refer to the error cause Note The worsening of a Sensoface criterion leads to the devaluation of the Sensoface indicator Smiley becomes sad An improvement of the Sensoface indicator can only take place after calibration or removal of an electrode defect 93 Status D...

Page 48: ...1 Input resistance 1 x 1010 Ohms Input current 1 x 10 10 A Meas error 1 2 3 pH value 0 02 TC 0 002 pH K display mV value 1 mV TC 0 1 mV K Electrode standardization pH pH calibration Operating modes BUF Buffer sets Calimatic calibration with automatic buffer recognition 01 Mettler Toledo 2 00 4 01 7 00 9 21 02 Merck Riedel de Haen 2 00 4 00 7 00 9 00 12 00 03 Ciba 94 2 06 4 00 7 00 10 00 04 NIST te...

Page 49: ...V AC DC inactive 10 to 30 V AC DC active Specifications 97 CONTROL input Galv separated OPTO coupler Function Control input for automatic cleaning calibration system Switching voltage 0 to 2 V AC DC inactive 10 to 30 V AC DC active Output 1 0 4 to 20 mA max 10 V floating galv connected to output 2 Measured variable pH or mV value Overrange 22 mA in the case of error messages Output filter Low pass...

Page 50: ...stem Contact ratings AC 250 V 3 A 750 VA DC 30 V 3 A 90 W Contact response N C or N O Rinsing interval 000 0 to 999 9 h 000 0 h cleaning function switched off Cleaning time 0000 to 1999 s Calibration interval 000 0 to 999 9 h Cleaning interval 000 0 to 999 9 h 99 Display LC display 7 segment with icons Main display Character height 17 mm unit symbols 10 mm Secondary display Character height 10 mm ...

Page 51: ... polybutylene terephtalate Color Bluish gray RAL 7031 Assembly Wall mounting Pipe mounting dia 40 to 60 mm 30 to 45 mm Panel mounting cutout to DIN 43 700 Sealed against panel Dimensions H 144 mm B 144 mm T 105 mm Ingress protection IP 65 NEMA 4X Cable glands 3 breakthroughs for cable glands M20x1 5 2 breakthroughs for NPT 1 2 or Rigid Metallic Conduit Weight Approx 1 kg User defined 1 To IEC 746 ...

Page 52: ... 8 66 8 65 8 64 8 64 12 58 12 41 12 26 12 10 12 00 11 88 11 72 11 67 11 54 11 44 11 33 11 19 11 04 10 97 10 90 10 80 10 70 10 59 10 48 10 37 Buffer tables 103 03 Ciba 94 buffers Nominal values 2 06 4 00 7 00 10 00 C pH 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 2 04 2 09 2 07 2 08 2 09 2 08 2 06 2 06 2 07 2 06 2 06 2 05 2 08 2 07 2 07 2 04 2 02 2 03 2 04 2 05 4 00 4 02 4 00 4 00 4 0...

Page 53: ...9 83 9 83 9 83 9 83 13 42 13 21 13 01 12 80 12 64 12 46 12 30 12 13 11 99 11 84 11 71 11 57 11 45 11 45 11 45 11 45 11 45 11 45 11 45 11 45 Extrapolated 105 05 NIST standard buffers C pH 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 4 010 4 004 4 000 3 999 4 001 4 006 4 012 4 021 4 031 4 043 4 057 4 071 4 087 4 109 4 126 4 145 4 164 4 185 4 205 4 227 6 984 6 951 6 923 6 900 6 881 6 865...

Page 54: ...79 9 76 9 76 9 76 9 76 9 76 9 76 9 76 9 76 Values complemented Buffer values up to 60 C as specified by Bergmann Beving Process AB Buffer tables 107 07 WTW buffers C pH 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 2 03 2 02 2 01 2 00 2 00 2 00 1 99 1 99 1 98 1 98 1 98 1 98 1 98 1 99 2 00 2 00 2 00 2 00 2 00 2 00 4 01 4 01 4 00 4 00 4 00 4 01 4 01 4 02 4 03 4 04 4 06 4 08 4 10 4 13 4 1...

Page 55: ...ns which can be used for automatic calibration with the Calimatic The buffer set must be selected prior to the first calibration 109 DURAFET DURAFET combination pH ORP electrodes consist of an ISFET measuring electrode a reference electrode and a temperature probe DURAFET cap adapter Adapter integrated in the protective cap of the DURAFET electrode Here the signal of the pH sensitive FET is conver...

Page 56: ... is required for a one point calibration Mode code Preset four digit number to select certain modes MEREDIAN MEREDIAN combination pH ORP electrodes consist of a glass or metallic measuring electrode a reference electrode and a tem perature probe They include a permanent reference junction and gel fill for mainte nance free operation 111 Zero point See asymmetry potential Zero adjustment Basic adju...

Page 57: ...output filter 36 Configuration Output 2 40 Current range 41 112 APT4000PH Index Output current during Hold 44 Temperature error 44 Temperature probe 41 Temperature unit 40 Time constant of output filter 42 Configuration Relay 1 52 Configuration Relay 2 54 Configuration Rinsing and calibration probes 58 Lock cleaning calibration 59 Configuration Temperature compensation 46 Temp detection during mea...

Page 58: ...unting 10 Pipe mount kit 10 94 Product calibration 74 114 APT4000PH Product line and accessories 94 Protective hood 10 94 Protective wiring 20 Pulse frequency controller PFC 84 Pulse length controller PLC 84 Relay 1 52 Relay 2 54 Relay test 80 Rinsing system 85 Configuration 58 Safety functions 25 Safety information 5 Division 2 wiring 13 Installation 12 Self test 25 Sensocheck 51 92 Sensoface 92 ...

Page 59: ...015 Configuration Error Info Display last error and erase 0000 Configuring Sensor monitor Display of uncorrected electrode potential mV Parameter set 1 2 Selecting parameter set 1200 2222 7654 Key Code Description Calibration Adjustment of asymmetry potential and slope electrode 1100 5555 5556 5557 5559 Current source 1 Output current 1 specified Current source 2 Output current 2 specified Relay t...

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