Smarter China

Wherever the process pressure has to be indicated locally and, at the same time, circuits need to be switched, the model PGS21.1x0 switchGAUGE finds its use.
Switch contacts (electrical alarm contacts) make or break circuits dependent upon the pointer position of the indicating measuring instrument. The switch contacts are adjustable over the full extent of the scale range (see DIN 16085), and are mounted predominantly below the dial, though also partly on top of the dial. The instrument pointer (actual value pointer) moves freely across the entire scale range, independent of the setting.
The set pointer can be adjusted using a removable adjust ment key in the window.
Switch contacts consisting of several contacts can also be set to a single set point. Contact actuation is mad when the actual value pointer travels beyond or below the desired set point.
The pressure gauge is manufactured in accordance with DIN 16085 and fulfils all requirements of the relevant standards (EN 837-1) and regulations for the on-site display of the working pressure of pressure vessels.
As switch contacts, magnetic snap-action contacts, reed switches and delectronic contacts are available. For triggering programmable login controllers (PLC), electronic contacts and reed switches can be used.

Specifications

Nominal size in mm: 100、160
Accuracy class: 1.0
Scale ranges: 0 ... 0.6 bar [0 ... 8.7 psi] to 0 ... 600 bar [0 ... 8,702.26 psi] other units(e.g, psi,kPa) available or all other equivalent vacuum or combined pressure and vacuum ranges
Scale: Single scale、 Dual scale

Pressure limitation
Steady: Full scale value
Fluctuating: 0.9 x full scale value
Short time: 1.3 x full scale value
Connection location: Lower mount (radial), Lower back mount
process connection (copper alloy): G☒B、☒NPT、M20x1.5, others on request

Permissible temperature
Medium: +80°C [+176°F], Higher medium temperature on request
Ambient: -20 ... +60°C [-4 ... +140°F]
Temperature effect: When the temperature of the measuring system deviates from the reference temperature (+20°C), max. ±0.4%/10K of full scale value
Case: Stainless steel
Case filling: Without

Wetted materials
Process connection, pressure element
＜100 bar: Copper alloy, trumpet form
≥ 100 bar: Stainless steel 316L, helical type

Non-wetted materials
Case, bayonet ring: Stainless steel
Movement: Copper alloy, wear parts argentan
Dial: Aluminium, white, black lettering
Instrument pointer: Aluminium, black
Set pointer: Aluminium, red
Window: Polycarbonate、Laminated safety glass
Ingress protection per JB/TP273-1999: IP54
Electrical connection: Cable socket PA 6, BLACK, pER vde 0110 insulation group C/250V, Cable gland M20 x 1.5, Strain relief, 6 screw terminals + PE for conductor cross-section 2.5 mm

Switching function
The switching function of the switch is indicated by index 1, 2 or 3
Model 8XX.1: Normally open (clockwise pointer motion)
Model 8XX.2: Normally closed(clockwise pointer motion)
Model 821.3 and 851.3: Change-ove; one contact breaks and one contact makes simultaneously when pointer reaches set point
For further information on switch contacts, see data sheet AC 08.01

Other versions

Contact model 821 with separate circuits
Contact model 821 as change-over contact (break or make simultaneously at the set point)
Contact model 821 width cable break monitoring (parallel resistance 47kΩ and 100kΩ)
Contact materials for contact model 821: Platinum-iridium alloy and gold-silver alloy
Contacts fixed, without contact adjustment lock
Contact adjustment lock leaded
Contact adjustment key fixed
Connerctor (instead of cable socket)

Accessories

Panel mounting flange, polished stainless steel
Surface mounting flange, stainless steel
Surface mounting lugs on the back, stainless steel
Sealings (models IV20/IV21, see data sheet AC 09.19, and models IV10/IV11, see data sheet AC 09.22)
Syphons (model 910.15, see data sheet AC 09.06)
Overpressure protector model 910.13, see data sheet AC 09.04)
Cooling element (model 910.32, see data sheet AC 09.21)
Diaphragm seals

Ordering information: Model / Nominal size / Type of contact and switching function / Scale range / Process connection / Connection location / Options

Magnetic snap-action contact model 821
No control unit and no power supply required
Direct switching up to 250V,1A
Up to 4 switch contacts per measuring instrument

Supecifications for instruments with magnetic snap-action contact model 821

The recommended setting range of the contacts is 25 ... 75% of the scale (0 ... 100% on request). Contact material (standard): Silver-nickel, gold-plated

Setting the contacts
The recommended minimum clearance between 2 contacts is 20% of the measuring span.
The switch hysteresis is 2 ... 5% (typical).

Recommended contact load with resistive and inductive loads

Electronic contact model 830E
For direct triggering of a programmable login controller(PLC)
2-wire system(option:3-wire system)
Long service life due to non-contact sensor
Low influence on the indication accuracy
Fail-safe switching at high switching frequency
Insensitive to corrosion
Up to 3 switch contacts per measuring instrument

Specifications for instruments with electronic contact model 830E

The recommended setting range of the contacts is 10 ... 90% of the scale (0 ... 100% on request).

Setting of contacts to identical set point
Up to 2 contacts can be set to an identical set point. For a version with 3 contacts this is not possible. The left (no.1) or right (no.3) contact may not be set to the same set point as the other 2 contacts. The required displacement is approx.30°, option ally to the right or to the left.

Contact version: Normally open, normally closed
Type of output: PNP transistor
Operating voltage: DC 10 ... 30V
Residual ripple: Max.10%
No-load current: ≤ 10 mA
Switching current: ≤ 100 mA
Residual current: ≤ 100 mA
Voltage drop (with I_max.): ≤ 0.7V
Reverse polarity protection: Conditional U_B (the switched output 3 or 4 must never be set directly to minus)
Anti-inductive protection: 1kV, 0.1ms, 1 kΩ
Oscillator frequency: approx. 1,000 kHz
Standard: JB/T9273-1999

• 2-wire system (standard)
  
• 3-wire system
  

Reed switch model 851
No control unit and no power supply required
Direct switching up to 250V,1A
For direct triggering of a programmable logic controller(PLC)
Free from wear as without contact
NS100：Up to two change-over contacts per measuring instrument;
NS160：Up to one change-over contact per measuring instrument(switching voltages AC<50V and DC<75V, switch contact not adjustable from outside)

Specifications for instruments with reed switch model 851

Switching pwoer P_max 60W/60VA
Switching current 1A

Contact version: Change-over contact
Type of contact: Bistable
Max.switching voltage: AC/DC 250V
Min.switching voltage: Not required
Switching current: AC/DC 1A
Min.switching current: Not required
Transport current: AC/DC 2A
COS: 1
Switching power: 60W/VA
Contact resistance (static): 100 mΩ
Insulation resistance: 10⁹ Ω
Breakdown voltage: DC 1,000V
Switching time incl. contact chatter: 4.5 ms
Contact material: Rhodium
Switch hysteresis: 3 ... 5 %

The limit values presented here must not be exceeded.
When using two contacts, these cannot be set to the same point. Depending on the switching function, a minimum clear ance of 15 ... 30° is required.
The setting range of the contacts is 10 ... 90 % of the scale.
The switching function can be set in manufacturing such that the reed contact will actuate exactly at the required switch point. For this, we need the switching direction to be specified on order.

• Contact models: 821 and 851
• Contact model: 830E

switchGAUGE model PGS21.100 with switch contact model 821 or 830E

• Type of contact	Dimensions in mm
  	X	Y
  Single or double contact	88	55
  Double (change-over) contact	113	80
  Triple contact	96	63
  Quadruple contact	113	80

• Process connection	Dimensions in mm
  	h±1	S2	S3	S4	S5	S6
  G☒B	87	6	20	3	17	17.5
  G☒B	80	5	13	2	11	9.5
  G☒B	83	5.5	16	3	14	13
  ☒NPT	86	-	19	-	-	-

• Type of contact	Dimensions in mm
  	X	Y
  Single or double contact	88	55
  Double (change-over) contact	113	80
  Triple contact	96	63
  Quadruple contact	113	80

• Process connection	Dimensions in mm
  	b	S2	S3	S4	S5	S6
  G☒B	33.5	6	20	3	17	17.5
  G☒B	26.5	5	13	2	11	9.5
  G☒B	29.5	5.5	16	3	14	13
  ☒NPT	32.5	-	19	-	-	-

switchGAUGE model PGS21.160 with switch contact model 821 or 830E

• Type of contact	Dimensions in mm
  	X	Y
  Single or double contact	88	55
  Triple contact	96	63
  Quadruple contact	113	80

• Process connection	Dimensions in mm
  	h±1	S2	S3	S4	S5	S6
  G☒B	118	6	20	3	17	17.5
  G☒B	111	5	13	2	11	9.5
  G☒B	114	5.5	16	3	14	13
  ☒NPT	117	-	19	-	-	-

• Type of contact	Dimensions in mm
  	X
  Single or double contact	105
  Triple contact	105
  Quadruple contact	119

• Process connection	Dimensions in mm
  	b	S2	S3	S4	S5	S6
  G☒B	33.5	6	20	3	17	17.5
  G☒B	26.5	5	13	2	11	9.5
  G☒B	29.5	5.5	16	3	14	13
  ☒NPT	32.5	-	19	-	-	-

switchGAUGE model PGS21.100 with switch contact model 851.3 or 851.33

switchGAUGE model PGS21.160 with switch contact model 851.3 or 851.33