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Hansen Technologies HEC4-N1K, Specifications, Applications, Service Instructions & Parts

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Hansen Technologies HEC4-N1K Specifications, Applications, Service Instructions & Parts Download Page 20

20

A100g 
JULY 2017

PLC 4 PT. ANALOG IN MODULE (CURRENT)

FIG. 20

TYPICAL WIRING DIAGRAM HLM6 TO EXTREME GAS SENSOR

FIG. 21

PLC 4 PT. ANALOG IN MODULE (CURRENT)

GREEN

RED

V +V

V

I

NO COM NC

0

0

V

Power Supply

24V AC/DC

EARTH GRD

Multi-Wire

Cable Shield

*REMOTE SENSOR

+

-

INPUT #1
INPUT #2
INPUT #3
INPUT #4
ANALOG GND

REMOTE SENSOR

REMOTE SENSOR

REMOTE SENSOR

* Wiring is the same for AC or DC Power Supply.

Voltage selector must match external power supply.

A

D

Summary of Contents for HEC4-N1K

Page 1: ...urrounding environment The analog outputs 4 20mA or 0 10V DC can interface with nearly any existing monitor computer or PLC controller The sensing elements except Basic and Extreme Gas Sensors are mou...

Page 2: ...ors or outdoors Enclosure is NEMA4X IP65 conduit connection must be vaporproof Note Auxilliary power required when used with Hansen monitors HLM2 and HLM6 and Gas Alert System Vent Line Gas Sensor For...

Page 3: ...mount the gas sensor below the coil to avoid high moisture and steam during defrost The two generally accepted methods of locating sensors are Point and Perimeter detection Point detection is where se...

Page 4: ...LOOP RESISTANCE 1000 OHMS OUTPUT 4 20mA 0 5V 1 5V 0 10V 2 10V DC 4 20mA SIGNAL OUTPUT Isolated 2 wire ALARM RELAY SPDT 1 A 120V TRUE ALTITUDE 2000M POLLUTION DEGREE 2 4 EQUIPMENT CLASS 3 INSTALLATION...

Page 5: ...ALARM SIMPLE ALARM SYSTEM INDOOR OUTDOOR VISUAL ALARM AUDIBLE ALARM GAS SENSOR INSIDE SPACE OUTSIDE SPACE GAS SENSOR ELEMENT 10 3m CABLE MAX WEATHER PROOF GAS SENSOR ELECTRONICS RELIEF LINE DISCHARGE...

Page 6: ...tage signal wires be in a common conduit tray or wiring panel with power wiring over 48 volts Do not run wires near variable frequency drive VFD equipment When using the gas sensors connected directly...

Page 7: ...SHIELD AT OTHER END Voltage Selector D 24V DC A 24V AC D A Fail Safe Relay Relay engerized to normally open position when power applied AC APPLIED VOLTAGE POWER SEMI CONDUCTOR SENSOR NO NC COM V V 0 V...

Page 8: ...8 A100g JULY 2017 INFRARED SENSOR SHOWN WIRED FOR 4 20MA OUTPUT FIG 11...

Page 9: ...SOR OPERATION On power up the internal relay will energize switching from the normally closed position to the normally open position In addition the sensor will go through an initial warm up delay for...

Page 10: ...e output it should begin to increase after 5 seconds Leave the gas flow on and observe the voltage The sensor voltage will slowly climb toward 5VDC When the voltage does not change by more than 0 010...

Page 11: ...oof Sensing Elements are externally mounted to the enclosure To replace disconnect power open enclosure and disconnect cable wire from the circuit board Unscrew sensor element from enclosure Install n...

Page 12: ...relays alarms 10 amp 230V AC 1 SPDT dry contact relay fault output 10 amp 230V AC HLM6 Model only Power Required 100 230 VAC Power Consumption HLM2 15W HLM6 25W Audible Alarm HLM2 internal 80 dB HLM6...

Page 13: ...ge across VHIGH and GND Set the desired high level alarm relay using VHIGH Pot which is located furthest from the calibration pins This setting applies to the six channels SETTING ALARM OUTPUT FOR HLM...

Page 14: ...14 A100g JULY 2017 HLM2 WIRING DIAGRAM FIG 13...

Page 15: ...15 A100g JULY 2017 HLM6 WIRING DIAGRAM FIG 14...

Page 16: ...m sensor fault Symptom Output from sensor is 2mA for 4 20mA output Output from sensor is 0 V or 5V for 0 10 0 5 1 10 1 5 output signals Cause 1 Sensing element has failed or is disconnected from print...

Page 17: ...6 5 94 151 2 56 65 62 16 2 07 53 4 13 105 173 DIA 4 4 MOUNTING HOLE 3 PLACES 29 7 2 93 78 6 37 162 358 DIA 9 1 MOUNTING HOLE 3 10 79 7 58 191 173 DIA 4 4 MOUNTING HOLE 3 PLACES 358 DIA 9 1 MOUNTING HO...

Page 18: ...monitored system or as part of a larger gas monitoring and signaling system The lower cover to the terminal compartment must be removed to gain access for wiring Knockouts are available for and condui...

Page 19: ...REEN RED REMOTE SENSOR V V V I NO COM NC 0 0 V V V I COM CONTROL 0 RELAY NC RELAY COM SIGNAL POWER COM SHIELD SIGNAL POWER POWER SHIELD ppm Power Supply 24V AC DC EARTH GRD Multi Wire Cable Shield JUM...

Page 20: ...4 PT ANALOG IN MODULE CURRENT GREEN RED V V V I NO COM NC 0 0 V Power Supply 24V AC DC EARTH GRD Multi Wire Cable Shield REMOTE SENSOR INPUT 1 INPUT 2 INPUT 3 INPUT 4 ANALOG GND REMOTE SENSOR REMOTE...

Page 21: ...21 A100g JULY 2017 TYPICAL WIRING DIAGRAM WITH LOCAL POWER SOURCE FIG 22...

Page 22: ...nnected to relay _______________________________ OK Check Analog Output in Use e g 0 5V 4 20 mA _______________________________ OK 2 On Site Gas Calibration Initial the following encircle OK when comp...

Page 23: ...4E F3K R410 Semiconductor 0 3 000 Note Gas Sensors available for additional refrigerants consult factory TABLE 9 CO2 Sensor Type Range PPM Basic to 32 F 0 C Harsh to 40 F 40 C Extreme to 60 F 50 C HIR...

Page 24: ...conductor 31 1025 Harsh Extreme Ammonia 100 250 Electrochemical 31 1005 Harsh Extreme Ammonia 1000 Electrochemical 31 1006 Harsh Extreme Ammonia 10 000 Semiconductor 31 1007 Vent Line Ammonia 10 000 S...

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