Hansen Technologies HEC4-N1K Скачать руководство пользователя страница 2

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A100g 
JULY 2017

SELECTING GAS SENSOR TYPES

Hansen Gas Sensors are available in several types of 
enclosures to match the environmental and operating 
conditions.

PORTABLE GAS DETECTION UNIT

Portable Gas Detection unit includes 
the handheld unit, battery charger, 
e x t e n s i o n   w a n d ,   s p a r e   f i l t e r s , 
voltage output cable, accessories 
for calibration, and sensor module 
keeper for four sensors in a carrying 
case. Sensor modules sold separately.  
Portable Unit, HEP1. 

GAS SENSOR ACCESSORIES

Sensor Element Shield

The Sensor Element Shield can be screwed on to the 

end of the gas sensor to help protect the sensor from 
rain, dust, hose directed water, and debris floating in 
the air. It can be installed on the Standard, Harsh and 
Extreme gas sensors. The shield may slow response 
time slightly depending on the surrounding air flow 
conditions. Shield, p/n 31-1002.

Standard Gas Sensor

For operating temperatures down to 
0ºF (-17ºC). NEMA4 (IP65) watertight 
enclosur e. Mount a ble indoor s or 
outdoors. Enclosure is ABS material 
with a gasketed cover; single ½˝ conduit 
knockout is provided.

Harsh Environment Gas Sensor

For operating temperatures down 
to -40ºF (-40ºC) for wet/humid areas. 
M o u n t a b l e  i n d o o r s  o r  o u t d o o r s . 
Enclosure is NEMA4 (IP65) ABS material; 
conduit connection must be vaporproof.

Extreme Environment Gas Sensor

For operating temperatures down to 

-60ºF (-51ºC). Features a stainless steel 

metal enclosure and equipped with 
an integral heater and thermostat for 
low temperature operation. Mountable 
indoors 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 operating temperatures down to 

-40ºF (-40ºC). Mountable indoors or 

outdoors. Enclosure is NEMA4 (IP65) 

ABS material. Gas sensing element is 

in a separate carbon steel housing with 
an 1˝ NPT threaded connection; cable 
is 10 feet (3 meters).

Explosion Proof Gas Sensor

For operating temperatures down 
to -40ºF (-40ºC). Mountable indoors 
or outdoors. Enclosure is NEMA7 

Aluminum. Used where regulations and 

codes specify; consult factory with 
specific requirements. Class I, Div II, 
Group C and D.

Basic Gas Sensor

For operating temperatures down to 
32ºF (0ºC). For commercial applications 
such as supermarket refrigeration 
systems and air conditioning chillers. 
Enclosure is NEMA1 (IP30) ABS material 
for indoor installations. Low voltage 
cable wiring only. 

QUICK DISCONNECT 
PLUG KIT

Quick Disconnect Plug Kit 

The Quick Disconnect Plug Kit can be added to the gas 

sensor to provide a means of easily removing the gas 
sensor for recalibration. This feature comes in handy 
for gas sensors installed in blast cells, low temperature 
rooms and hard-to-reach places. The gas sensor 
cable can be quickly disconnected and the entire gas 
sensor removed or replaced with a bench recalibrated 
gas sensor. The gas sensor can then be brought to an 
alternate location for recalibration or sensing element 
replacement. Quick Disconnect Plug Kit, p/n 31-1001. 
Option only available for field installation. Supplied 
cable is 2 feet (0.6 meters) in length.

SHIELD

Harsh Model with Shield

Harsh Model with Quick Disconnect Plug Kit

Содержание HEC4-N1K

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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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