612.20

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WIKA · Pressure measurement · Family 612

Capsule pressure gauge, copper alloy

Name: Capsule pressure gauge, copper alloy
Brand: WIKA

Stainless steel case, NS 63 [2 ½"], 100 [4"], 160 [6"]

Range

-240…240 inH2O

Accuracy

1.6

Protection

IP54

CERoHSUKCA

Price

On request

Depends on configuration

Request a quote

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Description

The model 612.20 capsule pressure gauge is based upon the proven capsule measuring system. The capsule element measurement principle is suitable for very low pressures. On pressurisation, the expansion of the capsule element, proportional to the incident pressure, is transmitted to the movement and indicated.

The modular design enables a multitude of combinations of case materials, process connections, nominal sizes and scale ranges. Due to this high variance, the instrument is suitable for use in a wide range of applications within industry.

for further approvals, see page 7

Capsule pressure gauge, model 612.20

The case and the bayonet bezel are made from stainless steel. The material of the process connection is a copper alloy.

For mounting in control panels, the capsule pressure gauges can, depending on the process connection, be fitted with a mounting flange or with a triangular profile ring and mounting bracket.

The scale ranges of 0 ... 6 mbar to 0 ... 600 mbar or 0 ... 2.4 inH2O to 0 ... 240 inH2O and the vacuum and +/- scale ranges ensure the measuring ranges required for a wide variety of applications.

Special features

Zero point correction in front
Case from stainless steel
Robust design and ingress protection IP54
Low scale ranges from 0 ... 6 mbar to 0 ... 600 mbar or 0 ... 2.4 inH 2 O to 0 ... 240 inH 2 O

Identification

Model	612.20
Product family	612
Subcategory	Capsule pressure gauge

Measuring range

Pressure ranges

0…6 mbar · 0…600 mbar · 0…2.4 inH2O · 0…240 inH2O · 0…0.006 kg/cm2 · 0…0.6 kg/cm2 · 0…0.6 kPa · 0…60 kPa · 0…600 Pa · 0…60000 Pa · 0…0.1 psi · 0…10 psi · 0…60 mmH2O · 0…6000 mmH2O · 0…1.5 oz/in2 · 0…150 oz/in2 · -600…0 mbar · -240…0 inH2O · -0.6…0 kg/cm2 · -6000…0 mmH2O · -150…0 oz/in2 · -6…0 kPa · -6000…0 Pa · -6…0 psi · -3…3 mbar · -120…120 inH2O · -0.013…0.013 kg/cm2 · -1.25…1.25 kPa · -1250…1250 Pa · -1.8…1.8 psi · -3000…3000 mmH2O · -75…75 oz/in2 · 0…10 mbar · 0…16 mbar · 0…25 mbar · 0…40 mbar · 0…60 mbar · 0…100 mbar · 0…160 mbar · 0…250 mbar · 0…400 mbar · 0…0.01 kg/cm2 · 0…0.016 kg/cm2 · 0…0.025 kg/cm2 · 0…0.04 kg/cm2 · 0…0.06 kg/cm2 · 0…0.1 kg/cm2 · 0…0.16 kg/cm2 · 0…0.25 kg/cm2 · 0…0.4 kg/cm2 · 0…1 kPa · 0…1.6 kPa · 0…2.5 kPa · 0…4 kPa · 0…6 kPa · 0…10 kPa · 0…16 kPa · 0…25 kPa · 0…40 kPa · -60…0 kPa · 0…1000 Pa · 0…1600 Pa · 0…2500 Pa · 0…4000 Pa · 0…6000 Pa · 0…10000 Pa · 0…16000 Pa · 0…25000 Pa · 0…40000 Pa · -60000…0 Pa · 0…0.15 psi · 0…0.25 psi · 0…0.36 psi · 0…0.6 psi · 0…1 psi · 0…1.5 psi · 0…2.5 psi · 0…3.6 psi · 0…6 psi · -10…0 psi · 0…1.5 inH2O · 0…4 inH2O · 0…6 inH2O · 0…10 inH2O · 0…16 inH2O · 0…24 inH2O · 0…40 inH2O · 0…60 inH2O · 0…100 inH2O · 0…160 inH2O · 0…100 mmH2O · 0…160 mmH2O · 0…250 mmH2O · 0…400 mmH2O · 0…600 mmH2O · 0…1000 mmH2O · 0…1600 mmH2O · 0…2500 mmH2O · 0…4000 mmH2O · 0…2.5 oz/in2 · 0…4 oz/in2 · 0…6 oz/in2 · 0…10 oz/in2 · 0…15 oz/in2 · 0…25 oz/in2 · 0…40 oz/in2 · 0…60 oz/in2 · 0…100 oz/in2 · -150…150 oz/in2

Accuracy

Accuracy class	1.6
Accuracy standard	EN 837-3

Process conditions

Process connection	G ⅛ BG ¼ BG ½ BM20 x 1.5R ¼R ½¼ NPT½ NPTG 1/8 B, male threadG 1/4 B, male threadG 1/2 B, male threadM20 x 1.5, male threadR 1/4, male threadR 1/2, male thread1/4 NPT, male thread1/2 NPT, male thread
Process temperature	−20…+100 °C

Materials

Case material	Stainless steel
Wetted parts material	Copper alloy, NBR
Sealing material	NBR

Operating environment

Ambient temperature	−20…+60 °C
IP rating	IP54
Weight	0.2 kg

Certifications and approvals

Certifications

CERoHSUKCA

Additional details

Dial size	63 mm
Datasheet languages	EN

Tables from datasheet

Accuracy specifications

Accuracy class
EN 837-3	■ Class 1.6 ■ Class 1.0 1)
ASME B40.100	■ ±2 %│±1%│±2%ofmeasuring span (grade A) ■ ±1 %of measuring span (grade 1A) 1)
Zero point setting with adjustment screw	■ In front, after opening the bayonet bezel 2) ■ In front, through the opening in the window 3)
Temperature error	On deviation from the reference conditions at the measuring system: ≤ ±0.6 %per 10 °C [≤ ±0.6 %per 18 °F] of full scale value
Reference conditions
Ambient temperature	+20 °C [+68 °F]

mbar
0 ... 6 1)	0 ... 100
0 ... 10 2)	0 ... 160
0 ... 16 2)	0 ... 250
0 ... 25	0 ... 400
0 ... 40	0 ... 600
0 ... 60

kPa
0 ... 0.6 1)	0 ... 10
0 ... 1 2)	0 ... 16
0 ... 1.6 2)	0 ... 25
0 ... 2.5	0 ... 40
0 ... 4	0 ... 60
0 ... 6

psi
0 ... 0.1 1)	0 ... 1.5
0 ... 0.15 2)	0 ... 2.5
0 ... 0.25 2)	0 ... 3.6
0 ... 0.36	0 ... 6.0
0 ... 0.6	0 ... 10
0 ... 1.0

View all (20)

kg/cm 2
0 ... 0.006 1)	0 ... 0.1
0 ... 0.016 2)	0 ... 0.25
0 ... 0.025	0 ... 0.4
0 ... 0.04	0 ... 0.6
0 ... 0.06

Pa
0 ... 600 1)	0 ... 10,000
0 ... 1,000 2)	0 ... 16,000
0 ... 1,600 2)	0 ... 25,000
0 ... 2,500	0 ... 40,000
0 ... 4,000	0 ... 60,000
0 ... 6,000

mmH 2 O
0 ... 60 1)	0 ... 1,000
0 ... 160 2)	0 ... 2,500
0 ... 250	0 ... 4,000
0 ... 400	0 ... 6,000
0 ... 600

inH 2 O
0 ... 2.4 1)	0 ... 40
0 ... 4 2)	0 ... 60
0 ... 6 2)	0 ... 100
0 ...10	0 ... 160
0 ... 16	0 ... 240
0 ... 24

mbar
-6…0 1)	-3 ...+3 1)
-10…0 2)	-5 ...+5 2)
-16…0 2)	-8 ...+8 2)
-25…0	-12.5 ... +12.5
-40…0	-20 ...+20
-60…0	-30 ...+30
-100…0	-50 ...+50
-160…0	-80 ...+80
-250…0	-125 ...+125
-400…0	-200 ...+200
-600 ... 0	-300 ...+300

kPa
-0.6…0 1)	-0.3 ...+ 0.3 1)
-1…0 2)	-0.5 ... +0.5 2)
-1.6…0 2)	-0.8 ... +0.8 2)
-2.5…0	-1.25 ... +1.25
-4…0	-2 ...+2
-6…0	-3 ...+3
-10…0	-5 ...+5
-16…0	-8 ...+8
-25…0	-12.5 ... +12.5
-40…0	-20 ...+20
-60 ... 0	-30 ...+30

oz/in 2
0 ... 1.5 1)	0 ... 25
0 ... 2.5 2)	0 ... 40
0 ... 4 2)	0 ... 60
0 ... 6	0 ... 100
0 ... 10	0 ... 150
0 ... 15

kg/cm 2
-0.006…0 1)	-0.003 ... +0.003 1)
-0.01…0 2)	-0.005 ... +0.005 2)
-0.016…0 2)	-0.008 ... +0.008 2)
-0.025…0	-0.0125 ... +0.0125
-0.04…0	-0.02 ... +0.02
-0.06…0	-0.03 ... +0.03
-0.1…0	-0.05 ... +0.05
-0.16…0	-0.08 ... +0.08
-0.25…0	-0.125 ... +0.125
-0.4…0	-0.2 ... +0.2
-0.6 ... 0	-0.3 ... +0.3

Pa
-600…0 1)	-300 ...+300 1)
-1,000…0 2)	-500 ...+500 2)
-1,600…0 2)	-800 ...+800 2)
-2,500…0	-1,250 ... +1,250
-4,000…0	-2,000 ... +2,000
-6,000…0	-3,000 ... +3,000
-10,000…0	-5,000 ... +5,000
-16,000…0	-8,000 ... +8,000
-25,000…0	-12,500 ... +12,500
-40,000…0	-20,000 ... +20,000
-60,000 ... 0	-30,000 ... +30,000

psi
-0.1 ... 0 1)	-0.05 ... +0.05 1)
-0.15 ... 0 2)	-0.075 ... +0.075 2)
-0.25 ... 0 2)	-0.125 ... +0.125 2)
-0.36 ... 0	-0.18 ... +0.18
-0.6 ... 0	-0.3 ... +0.3
-1 ... 0	-0.5 ... +0.5
-1.5 ... 0	-0.75 ... +0.75
-2.5 ... 0	-1.25 ... +1.25
-3.6 ... 0	-1.8 ... +1.8
-6 ... 0	-3 ...+3
-10 ... 0	-5 ...+5

inH 2 O
-2.4 ... 0 1)	-1.2 ... +1.2 1)
-4 ... 0 2)	-2 ...+2 2)
-6 ... 0 2)	-3 ...+3 2)
-10 ... 0	-5 ...+5
-16 ... 0	-8 ...+8
-24 ... 0	-12 …+12
-40 ... 0	-20 ...+20
-60 ... 0	-30 ...+30
-100 ... 0	-50 ...+50
-160 ... 0	-80 ...+80
-240 ... 0	-120 ...+120

Further details on: Scale ranges
Unit	■ mbar ■ kg/cm² ■ kPa ■ Pa	■ psi ■ mmH 2 O ■ inH 2 O ■ oz/in 2
Overpressure safety
Scale range < 0 ... 40 mbar [0 ... 16 inH 2 O]	■ Without ■ 3 x full scale value
Scale range ≥ 0 ... 40 mbar [0 ... 16 inH 2 O]	■ Without ■ 10 x full scale value
Vacuum safety
Scale range < 0 ... 40 mbar [0 ... 16 inH 2 O]	■ Without ■ 3 x full scale value
Scale range ≥ 0 ... 40 mbar [0 ... 16 inH 2 O]	■ Without ■ 10 x full scale value

mmH 2 O
-60 ... 0 1)	-30 ...+30 1)
-100 ... 0 2)	-50 ...+50 2)
-160 ... 0 2)	-80 ...+80 2)
-250...0	-125 ...+125
-400 ... 0	-200 ...+200
-600 ... 0	-300 ...+300
-1,000 ... 0	-500 ...+500
-1,600 ... 0	-800 ...+800
-2,500 ... 0	-1,250 ... +1,250
-4,000 ... 0	-2,000 ... +2,000
-6,000 ... 0	-3,000 ...+3000

oz/in 2
-1.5…0 1)	-0.75 ... +0.75 1)
-2.5…0 2)	-1.25 ... +1.25 2)
-4…0 2)	-2 ...+2 2)
-6…0	-3 ...+3
-10…0	-5 ...+5
-15…0	-7.5 ... +7.5
-25…0	-12.5 ... +12.5
-40…0	-20 ...+20
-60…0	-30 ...+30
-100…0	-50 ...+50
-150…0	-75 ...+75

Operating conditions

Medium temperature	-20 ...+100 °C [-4 ...+212 °F] ≤ 80 °C [≤ 176 °F] with NS 160 [6"]
Ambient temperature	-20 ...+60 °C [-4 ...+140 °F]
Pressure limitation
Steady	Full scale value
Fluctuating	0.9 x full scale value
Short time	1.3 x full scale value
Ingress protection per IEC/EN 60529	■ IP54 ■ IP55 ■ IP65 1)

Description	Region
EU declaration of conformity Union	European
Pressure Equipment Directive PS > 200 bar, module A, pressure accessory RoHS directive UKCA	United Kingdom
Pressure equipment (safety) regulations Restriction of hazardous substances (RoHS) regulations