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WIKA · Temperature measurement · Family 55

Bimetal thermometer

Name: Bimetal thermometer
Brand: WIKA
SKU: A-R55
Price: 213.66 EUR
Availability: BackOrder

For the process industry per EN 13190, premium version

Range

-70…600 °C

Accuracy

Class 1 per EN 13190

Protection

IP67

CEEACRoHSREACHEN 131902.2 test report per EN 10204ATEX II 2G Ex h IIC T6...T1 Gb XEx Ukraine

Price

From €214

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Description

The model 55 bimetal thermometer has been developed and is manufactured in accordance with the EN 13190 standard. This high-quality thermometer has been designed especially for the requirements of the process industry. Especially in the chemical and petrochemical, oil and gas, and power engineering industries, the temperature measuring instrument completely manufactured from stainless steel is used successfully.

The model 55 satisfies the high requirements for resistance against aggressive media. As an option, the case can be made from 316L to fulfil the highest requirements.

To allow optimum fitting to the process, individual insertion lengths and different process connections can be selected.

for further approvals see page 9

Fig. left: Bimetal thermometer, adjustable stem and dial, model S5550

Fig. right: left: Bimetal thermometer, model R5502

When it comes to harsh climatic conditions at the place of use, the model 55 is the right choice, as it can be used at temperatures ranging from -40 °C [-40 °F] to +70 °C [+158 °F] (optionally also up to -50 °C [-58 °F] or -70 °C [-94 °F] in the POLARgauge ® version).

The QR code on the dial allows instrument-specific information such as the serial number, the order number, certificates and other product data to be retrieved from the internet easily and in the long term.

Special features

Scale ranges from -70 ... +600 °C [-94 ... +1,112 °F]
For extreme ambient temperatures
Completely from stainless steel
Individual stem length from 63 ... 1,000 mm [2.5 ... 39 in]
QR code on dial links to instrument-specific information

Identification

Model	55
Subcategory	bimetal

Measuring range

Temperature ranges

−70…+70 °C · −70…+30 °C · −50…+50 °C · −50…+100 °C · −50…+300 °C · −50…+500 °C · −40…+60 °C · −40…+80 °C · −40…+160 °C · −30…+50 °C · −30…+70 °C · −20…+60 °C · −20…+80 °C · −20…+100 °C · −20…+120 °C · −20…+140 °C · −10…+50 °C · +0…+60 °C · +0…+80 °C · +0…+100 °C · +0…+120 °C · +0…+150 °C · +0…+160 °C · +0…+200 °C · +0…+250 °C · +0…+300 °C · +0…+400 °C · +0…+500 °C · +0…+600 °C

Accuracy

Accuracy class

Class 1 per EN 13190

Process conditions

Process connection	G ½ BG ¾ B½ NPT¾ NPTM20 x 1.5M24 x 1.5M18 x 1.5Plain, without threadG ½ B female½ NPT female
Process temperature	−70…+600 °C

Materials

Probe material	Stainless steel 316SS
Thermowell material	Stainless steel

Operating environment

Ambient temperature	−70…+70 °C
IP rating	IP67
Weight	1.1 kg

Certifications and approvals

Certifications	CEEACRoHSREACHEN 131902.2 test report per EN 102043.1 inspection certificate per EN 10204
Explosion protection	ATEX II 2G Ex h IIC T6...T1 Gb XATEX II 2D Ex h IIIC T85°C...T450°C Db XATEX directive Hazardous areas - Ex h Zone 1 gas II 2G Ex h IIC T6 ...T1 Gb X Zone 21 dust II 2D Ex h IIIC T85 °C ...T450 °C Db XEACEx Ukraine

Additional details

Sensor type	bimetal
Sensor class	Class 1
Probe length	1000 mm
Probe diameter	8 mm
Thermowell	No
Thermowell form	fabricated
Datasheet languages	EN, DE

Tables from datasheet

Version
Standard	EN 13190
Nominal size in mm[in]	■ 63 [2.5] ■ 100 [4] ■ 160 [6]
Window	■ Instrument glass ■ Window from polycarbonate (NS 63) ■ Laminated safety glass, clear non-splintering plastic
Connection location
A5525	NS 63 Back mount (axial)
A5500	NS 100 Back mount (axial)
A5501	NS 160 Back mount (axial)
R5526	NS 63 Lower mount (radial)
R5502	NS 100 Lower mount (radial)
R5503	NS 160 Lower mount (radial)
S5550	NS 100 Back mount, adjustable stem and dial
S5551	NS 160 Back mount, adjustable stem and dial
Connection design	→For drawings, see page 10
S	Standard (male threaded connection)
1	Plain stem (without thread)
2	Male nut
3	Union nut
4	Compression fitting (sliding on stem)
4.1	Compression fitting with support tube sliding on stem
5	Union nut and loose threaded connection
'Adjustable stem and dial' case version	Swivelling 90° and rotatable 360°
Case	■ Without ■ With silicone oil case filling, up to max. 250 °C [482 °F] (at the probe)
Material (in contact with the environment)
Case, bayonet ring	■ Stainless steel 304SS ■ Stainless steel 316L
Articulated joint ('adjustable stem and dial')	Stainless steel

Measuring element

Type of measuring element	Bimetal coil
Nominal effective range
Continuous load (1 year)	Measuring range (EN 13190)
Short time (max. 24 h)	Scale range (EN 13190)
Material movement	■ Combination of brass and stainless steel ■ Completely from stainless steel

Accuracy specifications

Accuracy	Class 1 per EN 13190
Zero adjustment (option)	On the rear side of the case, external only for adjustable stem and dial

Scale range in °C	Measuring range in °C 1)	Scale spacing in °C
-70 ... +70	-50 ...+50	2
-70 ... +30	-60 ...+20	1
-50 ... +50	-40 ...+40	1
-50 ... +100	-30 ...+80	2
-50 ... +300	0 ... 250	5
-50 ... +500	0 ... 450	5
-40 ... +60	-30 ...+50	1
-40 ... +80	-20 ...+60	2
-40 ... +160	-20 ...+140	2
-30 ... +50	-20 ...+40	1
-30 ... +70	-20 ...+60	1
-20 ... +60	-10 ...+50	1
-20 ... +80	-10 ...+70	1
-20 ... +100	0 ... 80	2
-20 ... +120	0 ... 100	2
-20 ... +140	0 ... 120	2
-10 ... +50	0 ... 40	1
0 ... 60	10 ... 50	1
0 ... 80	10 ... 70	1
0 ... 100	10 ... 90	1
0 ... 120	10 ... 110	2
0 ... 150	20 ... 130	2
0 ... 160	20 ... 140	2
0 ... 200	20 ... 180	2
0 ... 250	30 ... 220	2
0 ... 300	30 ... 270	5
0 ... 400	50 ... 350	5
0 ... 500	50 ... 450	5
0 ... 600	100 ... 500	10

View all (20)

Scale range in °F	Measuring range in °F 1)	Scale spacing in °F
-80 ... +120	-40 ...+100	2
-80 ... +240	-50 ...+210	2
-20 ... +120	0 ... 100	2
0 ... 200	20 ... 180	2
0 ... 250	30 ... 220	2
30 ... 300	60 ... 270	5
30 ... 400	80 ... 350	5
50 ... 300	80 ... 270	5
50 ... 400	100 ... 350	5
100 ... 800	200 ... 700	5
200 ... 700	250 ... 650	5
200 ... 1,000	300 ... 900	5

Process connection
ModelTW20	→see data sheetTW95.20
ModelTW25 ModelTW30	→see data sheetTW95.25 →see data sheetTW95.30
ScrutonWell ® design	→see data sheet SP 05.16

Operating conditions

Ambient temperature range (on case)	■ -40 ...+70 °C [-40 ...+158 °F] (with/without fill fluid) ■ -50 ...+70 °C [-58 ...+158 °F] ■ -70 ...+60 °C [-94 ...+140 °F] ( version)
Storage temperature range	-50 …+70 °C [-58 ...+158 °F]
Max. operating pressure at the stem	Max. 25 bar [362,6 psi], static
Ingress protection (IP code) per IEC/EN 60529	■ IP65 ■ IP66 ■ IP67

Minimum insertion length inmm
Design Stem diameter inmm	1 and 6	8	≥ 10	3, 4, 6	S 8	≥ 10
Scale range in °C
Model A55 (back mount)
-70 ...+70	63	63	63	69	63	64
-70 ...+30	63	63	63	82	69	73
-50 ...+50	63	63	63	80	68	73
-50 ...+100	63	63	63	69	63	63
-50 ...+200	63	63	63	78	69	67
-50 ...+300	119	119	119	119	119	119
-50 ...+400	119	119	119	119	119	119
-50 ...+500	119	119	119	119	119	119
-40 ...+40	79	65	63	98	79	79
-40 ...+60	65	63	63	79	72	73
-40 ...+80	63	63	63	80	68	69
-40 ...+160	63	63	63	67	63	63
-30 ...+30	90	72	80	109	91	99
-30 ...+50	69	63	63	88	75	81
-30 ...+70	65	63	63	79	72	71
-20 ...+40	88	70	80	107	89	99
-20 ...+60	68	63	63	87	74	78
-20 ...+80	63	63	63	78	66	68
-20 ...+100	63	63	63	71	63	66
-20 ...+120	63	63	63	67	63	63
-20 ...+140	63	63	63	66	63	63
-10 ...+50	88	70	80	107	89	89
0 ... 60	77	70	80	96	89	89
0 ... 80	68	63	63	87	74	78

Minimum insertion length inmm	1 and 2
Stem diameter inmm	6	8	≥ 10	6	8	≥ 10
Scale range in °C
0 ... 100	63	63	63	72	63	67
0 ... 120	63	63	63	69	63	64
0 ... 150	63	63	63	66	63	63
0 ... 160	63	63	63	63	63	63
0 ... 200	63	63	63	63	63	63
0 ... 250	63	63	63	73	69	68
0 ... 300	119	119	119	119	119	119
0 ... 400	119	119	119	119	119	119
0 ... 500	119	119	119	119	119	119
0 ... 600	119	119	119	119	119	119
Model R55 (lower mount)
-70 ...+70	63	63	63	79	68	65
-70 ...+30	68	63	63	87	69	75
-50 ...+50	63	63	63	82	72	72
-50 ...+100	63	63	63	73	64	63
-50 ...+200	63	63	63	69	63	63
-50 ...+300	119	119	119	119	119	119
-50 ...+400	119	119	119	119	119	119
-50 ...+500	119	119	119	119	119	119
-40 ...+40	72	63	63	91	82	75
-40 ...+60	63	63	63	81	71	71
-40 ...+80	63	63	63	78	69	69
-40 ...+160	63	63	63	75	64	64
-30 ...+30	87	72	72	106	91	91
-30 ...+50	68	63	63	87	75	75
-30 ...+70	63	63	63	81	71	71
-20 ...+40	85	68	68	104	87	87
-20 ...+60	67	63	63	87	74	74
-20 ...+80	63	63	63	78	67	67
-20 ...+100	63	63	63	74	65	65
-20 ...+120	63	63	63	73	64	64
-20 ...+140	63	63	63	74	64	67
-10 ...+50	85	68	68	104	87	87
0 ... 60	77	67	67	96	86	86
0 ... 80	67	63	63	86	74	74
0 ... 100	63	63	63	78	67	67
0 ... 120	63	63	63	73	65	65
0 ... 150	63	63	63	73	64	64
0 ... 160	63	63	63	74	67	67
0 ... 200	63	63	63	73	63	63
0 ... 250	63	63	63	82	72	72
0 ... 300	119	119	119	119	119	119
0 ... 400	119	119	119	119	119	119
0 ... 500	119	119	119	119	119	119
0 ... 600	119	119	119	119	119	119

Minimum insertion length inmm
Design	1 and 2	3, 4, 5	and S
Stem diameter inmm	6	8	≥ 10	6	8	≥ 10
Scale range in °C
Model S55 (back mount, adjustable stem and dial)
-70 ...+70	63	63	63	78	67	63
-70 ...+30	75	63	63	94	80	80
-50 ...+50	67	63	63	86	78	78
-50 ...+100	66	63	63	85	76	68
-50 ...+200	67	63	63	86	78	67
-50 ...+300	119	119	119	119	119	119
-50 ...+400	119	119	119	119	119	119
-50 ...+500	119	119	119	119	119	119
-40 ...+40	90	74	63	109	93	74
-40 ...+60	67	63	63	86	78	78
-40 ...+80	63	63	63	80	70	70
-40 ...+160	63	63	63	67	63	63
-30 ...+30	101	77	77	120	96	96
-30 ...+50	78	66	66	96	85	85
-30 ...+70	72	63	63	91	80	80
-20 ...+40	99	80	80	118	99	99
-20 ...+60	77	65	65	96	79	79
-20 ...+80	66	63	63	85	74	74
-20 ...+100	63	63	63	76	68	68
-20 ...+120	63	63	63	73	66	66
-20 ...+140	63	63	63	71	64	64
-10 ...+50	99	80	80	118	99	99
0 ... 60	94	75	74	113	94	94
0 ... 80	77	65	65	96	79	79
0 ... 100	63	63	63	82	73	73
0 ... 120	63	63	63	75	67	67
0 ... 150	63	63	63	71	64	64
0 ... 160	63	63	63	66	63	63
0 ... 200	63	63	63	63	63	63
0 ... 250	66	63	63	85	73	73
0 ... 300	119	119	119	119	119	119
0 ... 400	119	119	119	119	119	119
0 ... 500	119	119	119	119	119	119
0 ... 600	119	119	119	119	119	119

Minimum insertion length inmm

Design	1 and 2	3, 4, 5 and S
Stem diameter inmm	6	8	≥ 10	6	8	≥ 10
Scale range in °F
Model A55 (back mount)
-100 ...+150	68	63	63	87	76	69
-80 ...+120	63	63	63	82	69	81
-80 ...+240	63	63	63	81	71	67
-40 ...+120	75	63	63	94	81	75
-20 ...+120	71	63	65	90	75	79

Minimum insertion length inmm	1 and 2
Stem diameter inmm	6	8	≥ 10	6	8	≥ 10
Scale range in °F
0 ... 140	68	63	63	87	74	78
0 ... 200	63	63	63	72	63	69
0 ... 250	63	63	63	66	63	69
30 ... 300	63	63	63	66	63	63
30 ... 400	63	63	63	63	63	63
50 ... 300	63	63	63	65	63	63
50 ... 400	63	63	63	63	63	63
100 ... 800	119	119	119	119	119	119
150 ... 750	119	119	119	119	119	119
200 ... 700	119	119	119	119	119	119
200 ... 1,000	119	119	119	119	119	119
Model R55 (lower mount)
-100 ...+150	75	63	63	94	80	80
-80 ...+120	68	63	63	87	75	75
-80 ...+240	63	63	63	81	71	71
-40 ...+120	71	63	63	90	79	79
-20 ...+120	69	63	63	88	76	74
0 ... 140	67	63	63	86	74	74
0 ... 200	63	63	63	75	66	66
0 ... 250	63	63	63	74	65	65
30 ... 300	63	63	63	74	66	66
30 ... 400	63	63	63	73	63	63
50 ... 300	63	63	63	74	64	64
50 ... 400	63	63	63	75	63	63
100 ... 800	119	119	119	119	119	119
150 ... 750	119	119	119	119	119	119
200 ... 700	119	119	119	119	119	119
200 ... 1,000	119	119	119	119	119	119
Model S55 (back mount, adjustable stem and dial)
-100 ...+150	71	63	63	90	80	74
-80 ...+120	81	66	66	100	85	85
-80 ...+240	63	63	63	81	71	71
-40 ...+120	85	72	66	104	91	85
-20 ...+120	74	63	65	93	75	79
0 ... 140	77	65	65	96	79	79
0 ... 200	63	63	63	73	65	69
0 ... 250	63	63	63	72	64	64
30 ... 300	63	63	63	73	65	65
30 ... 400	63	63	63	64	63	63
50 ... 300	63	63	63	74	66	66
50 ... 400	63	63	63	65	63	63
100 ... 800	119	119	119	119	119	119
150 ... 750	119	119	119	119 119	119	119
200 ... 700	119	119	119		119	119
200 ... 1,000	119	119	119	119	119	119

Logo	Description	Region
	EU declaration of conformity	European Union
	ATEX directive Hazardous areas - Ex h Zone 1 gas II 2G Ex h IIC T6 ...T1 Gb X Zone 21 dust II 2D Ex h IIIC T85 °C ...T450 °C Db X
	EAC Hazardous areas	Eurasian Economic Community
	PAC Kazakhstan Metrology, measurement technology	Kazakhstan
-	MChS Permission for commissioning	Kazakhstan
-	PAC Ukraine Metrology, measurement technology	Ukraine
	PAC Uzbekistan Metrology, measurement technology	Uzbekistan
-	CRN Safety (e.g. electr. safety, overpressure, ...)	Canada
	Ex Ukraine	Ukraine
	Mining

Certificates

Certificates	■ 2.2 test report per EN 10204 ■ 3.1 inspection certificate per EN 10204
Calibration	DAkkS calibration certificate

Nominal size	l a 1 l 2 Process connection	Dimensions inmm
NS	SW G	G i	d SW	d 4	Ø d
SW 63, 100, 160	G G½B	14	Ø Ø d d 27	26	Bauform 8
	G¾B	16	32	32	Design 1 3073050.06 8 Bauform 3
	½NPT	19	22	-	3073050.06 8 Design 3
	i ¾NPT	l l 2 20	30	-	8

Nominal size SW Ø22	i i l 1 l Process connection	Dimensions inmm Ø d Ø d 4
NS	G	l i	SW	Ø d 3073050.06
SW 63, 100, 160	ca.40 G½B	1 20	27	8

Nominal size	l 2 l Dimensions inmm i i l 1
NS	d 1	Ød	1 a for axial	i SW 1 2 l a for adjustable stem and dial
Bauform 63	5 14 SW	d 8	1 15 l 2	Ø d 25 d
Design 100, 160	18	8	15 G	3073050.06 25 Ø

Nominal size	Process connection ca.40 l L 1	Ø d Dimensions inmm
NS	G	i	SW	Ø d
63, 100, 160	G½B	l 2 8.5	27	8
	L G¾B	10.5	32	8
	M24 x 1.5	13.5	32	8

Nominal size	Process connection	Dimensions inmm
NS	G	i	SW	d 4	Ø d
63, 100, 160	ca.40 G½B	l 1 14	27	26	8
	G¾B	16	32	32	8
	M18 x 1.5	12	24	23	8
	½NPT	19	22	-	8
	¾NPT	20	30	-	8

Nominal size	Process connection	Dimensions inmm
NS	G	i	SW	d 4	Ø d
63, 100, 160	G½B	14	27	26	8
	G¾B	16	32	32	8
	M18 x 1.5	12	24	23	8
	½NPT	19	22	-	8
	¾NPT	20	30	-	8

Bimetal thermometer

Description

Special features

1 standard articles of family 55