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ELCO S.r.l. - ELK 38 - OPERATING INSTRUCTIONS - Vr. 02 - ISTR 06261 - PAG. 14

 

 

 

7.4 – FUNCTIONAL FEATURES 
Control: ON/OFF, single and double action PID  
Measurement range: according to the used probe (see range table) 
Display resolution: according to the probe used  1/0,1/0,01/0,001 
Overall accuracy: +/- 0,5 % fs  
Max  cold  junction  compensation  drift  (in  tc)  :  0,1  °C/°C  with 
operating temperature 0 ... 50 °C after warm-up of  20 min. 
Sampling rate: 130 ms. 
Display: 4 Digit  Red h 12 mm 
Compliance: ECC directive EMC 89/336 (EN 61326), ECC directive 
LV 73/23 and 93/68 (EN 61010-1) 
 

7.5

 - 

MEASURING RANGE TABLE 

INPUT 

“dP” = 0 

“dP”= 1, 2, 3 

tc J  

“SEnS” = J 

0 ... 1000 °C 

32 ... 1832 °F  

- - - - 

tc K  

“SEnS” = CrAl 

0 ... 1370 °C 

32 ... 2498 °F  

- - - - 

tc S  

“SEnS” = S 

0 ... 1760 °C 

32 ... 3200 °F  

- - - - 

Pt100 (IEC) 

“SEnS” = Pt1 

-200 ... 850 °C 

-328 ... 1562 °F  

-199.9 ... 850.0 °C 

-199.9 ... 999.9 °F  

PTC (KTY81-121) 

“SEnS” = Ptc 

-55 ... 150 °C 

-67 ... 302 °F  

-55.0 ... 150.0 °C 

-67.0 ...302.0 °F  

NTC (103-AT2) 

“SEnS” = ntc 

-50 ... 110 °C 

-58 ... 230 °F  

-50.0 ... 110.0 °C 

-58.0 ... 230.0 °F  

 

0..20 mA 

“SEnS” = 0.20 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

  

4..20 mA 

“SEnS” = 4.20 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

0 ... 50 mV 

“SEnS” = 0.50 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

0 ... 60 mV 

“SEnS” = 0.60 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

12 ... 60 mV 

“SEnS” = 12.60 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

0 ... 1 V 

“SEnS” = 0.1 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

0 ... 5 V 

“SEnS” = 0.5 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

1 ... 5 V 

“SEnS” = 1.5 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

0 ... 10 V 

“SEnS” = 0.10 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 

2 ... 10 V 

“SEnS” = 2.10 

 

-1999 ... 9999 

-199.9 ... 999.9  
-19.99 ... 99.99  
-1.999 ... 9.999 

 
7.6 – INSTRUMENT ORDERING CODE
 
 
ELK38 a b c d ee
 
a : POWER SUPPLY 
12  = 12 VAC/VDC 
24  = 24 VAC/VDC 
240 = 100... 240 VAC 
b : INPUT 
C = thermocouples (J, K, S, I.R), mV, thermoresistances (Pt100) 
E = thermocouples (J, K, S, I.R.), mV, thermistors (PTC, NTC) 
I = normalized signals 0/4..20 mA 
= normalized signals 0..1 V, 0/1..5 V, 0/2..10 V. 
c : OUTPUT OUT1 
R = Relay  
= VDC for SSR 
d : OUTPUT OUT2 
2R = Relay  
2S = VDC for SSR 
- = None 
ee: SPECIAL CODES 

 

ELK 38 PASSWORD = 381

 

ELK

Summary of Contents for ELK 38

Page 1: ...ACTION PID CONTROL 4 6 DOUBLE ACTION PID CONTROL 4 7 AUTO TUNING AND SELF TUNING FUNCTIONS 4 8 REACHING OF SET POINT AT CONTROLLED SPEED AND AUTOMATIC COMMUTATION BETWEEN TWO SET POINTS 4 9 SOFT STAR...

Page 2: ...er two seconds in the same condition the changing speed increases in order to allow the desired value to be reached rapidly Once the desired value has been reached by pushing key P it is possible to e...

Page 3: ...of the controller During automatic control it is possible to visualize the control power on the display by pushing key UP The range of the power values goes from H100 100 of the output power with rev...

Page 4: ...nearization J Ir J or K Ir CA for thermoresistances Pt100 IEC Pt1 or thermistors PTC KTY81 121 Ptc or NTC 103AT 2 ntc for normalised signals in current 0 20 mA 0 20 or 4 20 mA 4 20 for normalised sign...

Page 5: ...value SP HSEt Vice versa in case of direct action or cooling Func CooL it deactivates the output when the process value reaches SP HSEt in case of symmetrical hysteresis or SP in case of asymmetrical...

Page 6: ...control monitoring and the continuous calculation of the parameters during control Both functions automatically calculate the following parameters Pb Proportional Band tcr1 Cycle time of the output 1r...

Page 7: ...on only works through PID control and allows the limitation of control power when the instrument is switched on for a programmable period of time This is useful when the actuator driven by the instrum...

Page 8: ...ument is in alarm condition the alarm is not activated It will be activated only when the process value is in non alarm conditions and then back in alarm conditions ALARM DELAY the alarm output may be...

Page 9: ...CONFIGURATION BY KEY01 The instrument is equipped with a connector that allows the transfer from and toward the instrument of the functioning parameters through the device ELCO KEY01 with 5 poles conn...

Page 10: ...arm AL1L 9999 9999 27 HAL1 Alarm AL1 hysteresis OFF 9999 1 28 AL1d Activation delay of alarm AL1 OFF 9999 sec OFF 29 AL1i Alarm AL1 activation in case of measuring error no yES no Group LbA parameters...

Page 11: ...defines the error conditions of the input allowing the instrument to give the power programmed on par OPE as output The possibilities are Or the condition occurs in case of over range or probe breakag...

Page 12: ...with Func HEAt than SP SP 2 or higher with Func CooL than SP SP 2 OFF Autotuning disabled When it s occurring an Autotuning cycle led AT blinks SELF SELF TUNING ENABLE Parameter used to enable yES or...

Page 13: ...y to repeat the auto tuning LbA Loop control interrupted Loop break alarm Check the working of probe and actuator and swap the instrument to rEG control ErEP Possible anomaly of the EEPROM memory Push...

Page 14: ...C 58 0 230 0 F 0 20 mA SEnS 0 20 1999 9999 199 9 999 9 19 99 99 99 1 999 9 999 4 20 mA SEnS 4 20 1999 9999 199 9 999 9 19 99 99 99 1 999 9 999 0 50 mV SEnS 0 50 1999 9999 199 9 999 9 19 99 99 99 1 99...

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