Digital limit switch

Name: Digital limit switch
Brand: WIKA

Digital limit switch for force transducers and load cells with galvanic isolation, 0/4...20 mA input, two relays, and scalable analogue output.

Output

0 ... 20 mA or 4 ... 20 mA

Protection

IP20

RoHSCEULCSAUL 508CSA 22.2 no. 143

Price

On request

Depends on configuration

Request a quote

+38 (067) 285-77-70·info@avigan.com.uaViberTelegram

Description

The EGS80 limit switch is suitable for a multitude of measuring requirements. It is used universally, in combination with force transducers of all types or load cells, in force or weight monitoring in conveyor systems, cranes, hoists etc. This limit switch allows galvanic isolation between field circuits and control circuits and can also be used as a galvanic isolator.

Both 2- and 3-wire transmitters as well as active sources with signal 0/4 ... 20 mA can be connected. The input has line break and cable short-circuit monitoring. As outputs, there are 2 relays and one active current output 0/4 ... 20 mA available. The current output is freely scalable. The measured value display is a small LC display - 17 different display units, such as kg, t, N, bar etc. are selectable.

For further approvals see page 3

Digital limit switch, model EGS80

It is operated via the control panel on the front of the instrument or via the free PC software. The software enables easy and fast parameterisation. A file with the setting parameters can be created, saved and loaded into any model EGS80 limit switch. If several instruments must be parameterised identically, the time required is significantly reduced. An adapter cable for the PC connection with 'USB type A to audio plug' can be supplied as accessories.

Special features

Analogue input 0/4 ... 20 mA, 2- and 3-wire
Galvanic isolation, line break (LB) and short-circuit (SC) monitoring
Easy setting of extensive functions on the instrument or via PC software
Two potential-free relay contacts (change-over) with status LED and a freely-programmable analogue output (0 ... 20 mA)

Identification

Model	EGS80
Product family	EGS
Subcategory	Digital limit switch

Accuracy

Safety integrity level (SIL)

SIL 2 per IEC 61508

Process conditions

Mounting type

DIN rail 35 mm

Electrical characteristics

Output signal

0 ... 20 mA or 4 ... 20 mA

Operating environment

Ambient temperature	−20…+60 °C
IP rating	IP20
Weight	0.3 kg

Certifications and approvals

Certifications

RoHSCEULCSAUL 508CSA 22.2 no. 143

Additional details

Datasheet languages

Tables from datasheet

Model EGS80
Input
Input signal	0/4 ...20mA
Input resistance	45 Ω(terminals 2, 3)
Open-circuit voltage	DC 24V / 33mA
Available voltage	> DC 15V for 20mA
Influence of the ambient temperature	0.003 %/K (30 ppm)
Line fault monitoring	Line break < 0.2 mA, short-circuit > 22mA
Accuracy	< 30 µA
Rated temperature range	-20 …+60 °C [-4 ... 140 °F]
Altitude	< 2,000 mabove sea level
Display	LC display, LEDs
Output I, II
Control system	Relay
Contact load	AC 250V / 2 A/cos φ≥0.7;DC 40V / 2 A
Mechanical lifetime	5 x 10 7 switching cycles
Response delay	≤ 200 ms with a step of 0 ...20mA
Output III
Analogue output	0 ... 20 mAor 4 ...20mA
Open-circuit voltage	≤ DC 24V
Load	≤ 650Ω
Error signal	downscale ≤ 3.6 mA, upscale ≥ 21.5 mA(in accordance with NAMUR NE43)
Resolution	≤ 10 μA
Accuracy	< 20 μA
Influence of the ambient temperature	0.005 %/K (50 ppm)
Response time	< 650 ms with a step from 0 ... 20 mAat the input, 90 %of the output signal final value
Linearisation	Number of linearisation steps: max. 20
Galvanic isolation
Input/other circuits reinforced insulation in acc. with IEC/EN 61010-1	Rated insulation voltage 300 Veff
Output I, II/other circuits reinforced insulation in acc. with IEC/EN 61010-1	Rated insulation voltage 300 Veff
Output I, II, III reinforced insulation between themselves in acc. with IEC/EN 61010-1	Rated insulation voltage 300 Veff
Output III/supply reinforced insulation in acc. with IEC/EN 61010-1	Rated insulation voltage 300 Veff
Interface/supply reinforced insulation in acc. with IEC/EN 61010-1	Rated insulation voltage 300 Veff
Supply voltage	■ DC20…90V ■ AC 48…253V
Dissipation loss	2W/3VA
Power consumption	2.2W/ 4VA
Settling time	Energized/De-energized delay 0 ... 250 s, settable
Ingress protection	IP20
Electromagnetic compatibility	■ EN 61326-1:2013 (industrial areas) ■ NE 21:2006
Low voltage	EN 61010-1:2010
Safety integrity level (SIL)	Up to SIL 2 per IEC 61508
Mounting	DIN rail 35 mm[1.378 in] per EN 60715:200
Weight	Approx. 300 g [0.66 lbs]

Logo	Description	Country
	EU declaration of conformity ■ EMCdirective ■ RoHS directive	European Union
	UL Per UL 508 and CSA 22.2 no. 143	USA and Canada