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Sensor Types

Thermistors

For Ambient Temperatures
Thermistors are ideal for ambient temperatures as they combine fast response time and accuracy. Range extremes are -50°C to + 150°C. Long cable lengths can be used.

Type U: 2000 ohms at 25°C (accuracy +/-0.1°C over the range 0 to 70°C)

Thermocouples

Type	Names of Materials	Useful Range
J	Iron (+)  Constantan (-)	200 - 1400°F  95 - 760°C
K	Chromel (+)  Alumel (-)	200 - 2300°F  95 - 1260°C
T	Copper (+)  Constantan (-)	-330 - 660°F  -200 - 350°C

PRTs (Platinum resistance)

Accurate at High Temperatures
PRTs are best suited for measuring temperatures down to -100°C and up to +600°C with good long term stability and accuracy. Due to the small change in resistance of PRTs, cable resistance can affect the accuracy of the sensor. Three or preferably four wire cables should be used and long lengths should be avoided. Eltek products support only PT100 Platinum Resistance Sensors.

Probe Types

Items marked with a * are available on quick delivery.

General Purpose

Robust, fast response, stainless steel, rounded end probes. Typical applications include air, vapours, liquids, powders, fridges, freezers, food...

Surface Temperature

Sensor mounted on either copper or stainless steel base. Typical applications include radiators, pipes, pumps, motors...

EU* (copper base) / EUS (st. st. base)
	Sensor	Code	Cable Code	Connector
	Thermistor	U*	VS, VL	0*, 1*, 2
	Thermocouple	J, K, T	NL, NS, MT	0*, 1*, 3
length 18mm, max width 8.5mm

 

Room Temperature

Sensor assembly mounted on aluminum bracket. Removeable black plastic globe to allow for the effect of radiant heat. Typical applications include radiant temperature and air temperature measurements.

AG
	Sensor	Code	Cable Code	Connector
	Thermistor	U	VL	0, 1, 2
	Thermocouple	J, K, T	NL	0, 1, 3
Globe dia. 36mm

 

Insertion Probes

Stainless steel sheath with pointed end and choice of handle for easy insertion and withdrawal into solid material. Typical applications include frozen food, soil and ice...

CMP
	Sensor	Code	Cable Code	Connector
	Thermistor	U	VS	0, 1, 2
	Thermocouple	T	NS, MT	0, 1, 3
length 50mm, dia. 3.2mm (no handle)

 

Soft Insertion Probe
Sensor sealed into smooth round ended flexible translucent PVC tubing which is smoothly fused onto cable. For delicate applications requiring flexible soft insertion. Note: this product is not a medical device and is not intended for use with humans or animals.
	Code	Thermistor Code	Length (mm)	Dia (mm)	Cable Code	Connector
	REC	U	100	5.0	VL	0, 1, 2
	REC (small)	U	50	3.0	VS	0, 1, 2
	OES	U	394	5.0	VL	0, 1, 2

 

Lead Types

Code	Description	Operating range	Maximum dia. (mm)	Maximum length (m)
VS	PVC small coaxial, lightweight, water resistant, flexible	-10 to 105	2.1	10	1
VL	PVC large coaxial, general purpose, water resistant, flexible	-10 to 105	3.1	500	2
NL	PTFE flat 2 core, good mechanical strength and flexibility. Resistant to oils, acids, adverse agents and fluids.	-75 to 250 (Intermittently to 300)	2.3 x 1.3	50
NS	PFA 2 core, ultra thin. Resistant to oils, acids, adverse agents and fluids.	-75 to 200	1.3 x 0.6	15
MT	PTFE 2 core (twisted 7/.2), good mechanical strength and flexibility. Resistant to oils, acids, adverse agents and fluids.	-50 to 250	2.0	15
FG	High temperature fibreglass, flat pair.	Max 400	3.0	50

1. Lead length up to 20m can be supplied with thermistor sensors.

 

Connector types

	Code 0	No plug (bare wire tails).
	Code 3	Thermoplug (colour coded) 2 pin ISO.  T type - Brown  K type - Green  J type - Black  Note: Thermocouple plugs are not included with either Eltek data loggers or GenII GS21/24 or 24H transmitters.
	Code 4	Tini QG-3 pin
	For transmitters
	Code 5  Code 6  Code 7	Mini plug 2 way with strain relief (3.4mm pin spacing) Mini plug 4 way with strain relief Mini plug 8 way with strain relief
	For wired loggers
	Code 8  Code 9  Code 10 Code 11  Code 12  Code 13	Standard plug 3 way with strain relief (5.3mm pin spacing) Standard plug 4 way with strain relief Standard plug 5 way with strain relief Standard plug 7 way with strain relief Standard plug 8 way with strain relief

2. For platinum resistance types P2 max length is 15m.

For PT100 Sensors, contact Eltek for advice on connector types.

Note: Eltek can terminate probes with other connectors to mate with the Squirrel when ordered together with the data logger.

Spare probes are supplied only terminated with the connector types identified above.

Read more...

To contact Connected IoT about Eltek Temperature Sensors use Get a quote.

Sensor Types

Thermistors

For Ambient Temperatures
Thermistors are ideal for ambient temperatures as they combine fast response time and accuracy. Range extremes are -50°C to + 150°C. Long cable lengths can be used.

Type U: 2000 ohms at 25°C (accuracy +/-0.1°C over the range 0 to 70°C)

Thermocouples

PRTs (Platinum resistance)

Accurate at High Temperatures
PRTs are best suited for measuring temperatures down to -100°C and up to +600°C with good long term stability and accuracy. Due to the small change in resistance of PRTs, cable resistance can affect the accuracy of the sensor. Three or preferably four wire cables should be used and long lengths should be avoided. Eltek products support only PT100 Platinum Resistance Sensors.

Probe Types

Items marked with a * are available on quick delivery.

General Purpose

Robust, fast response, stainless steel, rounded end probes. Typical applications include air, vapours, liquids, powders, fridges, freezers, food...

Surface Temperature

Sensor mounted on either copper or stainless steel base. Typical applications include radiators, pipes, pumps, motors...

EU* (copper base) / EUS (st. st. base)
	Sensor	Code	Cable Code	Connector
	Thermistor	U*	VS, VL	0*, 1*, 2
	Thermocouple	J, K, T	NL, NS, MT	0*, 1*, 3
length 18mm, max width 8.5mm

Room Temperature

Sensor assembly mounted on aluminum bracket. Removeable black plastic globe to allow for the effect of radiant heat. Typical applications include radiant temperature and air temperature measurements.

AG
	Sensor	Code	Cable Code	Connector
	Thermistor	U	VL	0, 1, 2
	Thermocouple	J, K, T	NL	0, 1, 3
Globe dia. 36mm

Insertion Probes

Stainless steel sheath with pointed end and choice of handle for easy insertion and withdrawal into solid material. Typical applications include frozen food, soil and ice...

CMP
	Sensor	Code	Cable Code	Connector
	Thermistor	U	VS	0, 1, 2
	Thermocouple	T	NS, MT	0, 1, 3
length 50mm, dia. 3.2mm (no handle)

Soft Insertion Probe
Sensor sealed into smooth round ended flexible translucent PVC tubing which is smoothly fused onto cable. For delicate applications requiring flexible soft insertion. Note: this product is not a medical device and is not intended for use with humans or animals.
	Code	Thermistor Code	Length (mm)	Dia (mm)	Cable Code	Connector
	REC	U	100	5.0	VL	0, 1, 2
	REC (small)	U	50	3.0	VS	0, 1, 2
	OES	U	394	5.0	VL	0, 1, 2

Lead Types

1. Lead length up to 20m can be supplied with thermistor sensors.

Connector types

	Code 0	No plug (bare wire tails).
	Code 3	Thermoplug (colour coded) 2 pin ISO.  T type - Brown  K type - Green  J type - Black  Note: Thermocouple plugs are not included with either Eltek data loggers or GenII GS21/24 or 24H transmitters.
	Code 4	Tini QG-3 pin
	For transmitters
	Code 5  Code 6  Code 7	Mini plug 2 way with strain relief (3.4mm pin spacing) Mini plug 4 way with strain relief Mini plug 8 way with strain relief
	For wired loggers
	Code 8  Code 9  Code 10 Code 11  Code 12  Code 13	Standard plug 3 way with strain relief (5.3mm pin spacing) Standard plug 4 way with strain relief Standard plug 5 way with strain relief Standard plug 7 way with strain relief Standard plug 8 way with strain relief

2. For platinum resistance types P2 max length is 15m.

For PT100 Sensors, contact Eltek for advice on connector types.

Note: Eltek can terminate probes with other connectors to mate with the Squirrel when ordered together with the data logger.

Spare probes are supplied only terminated with the connector types identified above.

Read less...

To contact Connected IoT about Eltek Temperature Sensors use Get a quote.