AD-MK 350 GVD

Description

The limit switch AD-MK 350 GVD serves the switching of limiting values on analogue signals, transmitter signals and resistance thermometer. If a 2-wire transmitter is connected, it will be supplied directly through a galvanic separated and current limited supply voltage. The device has analogue inputs for current, voltage and resistance thermometer, which can be utilised alternatively. The AD-MK 350 GVD can switch maximally two independent limiting values with its two potential-free change-over contacts. The switching thresholds and operating modes can be freely parameterized. This can be carried out via the optional control panel AD-VarioControl or via the programming software AD-Studio. The status of the relevant relay is indicated via LED at the front or at the operating module AD-VarioControl.

AD-MK 350 GVD

Application

Switching limit values to active analog signals, 2- / 3-wire transmitters, and resistance thermometers, e.g. Flows, heights or temperatures.

Specific characteristics

bipolar current input (+/- 0.5 mA to +/- 50 mA) bipolar voltage input (+/- 1 V to +/- 100 V) power supply of 2- / 3-wire transmitters two potential-free change-over contacts operating module as an accessory 23mm narrow housing with detachable terminal clamp

Business data

Order number
Vario - Limit Switch AD-MK 350 GVD
Accessory (optional)
Operating module AD-VarioControl
USB programming adapter AD-VarioPass
Configuration software AD-Studio
Identifiers
EClass 27210122
Customs Tariff Number 8538 90 91

Information

Technical specifications

Input current
Measuring range -50 ... + 50 mA DC
Input resistance 40 Ohm
Resolution 16 Bit
Accuracy 0,1 % of full scale
Input voltage
Measuring range -100 ... + 100 V DC
Input resistance 1 MOhm
Resolution 16 Bit
Accuracy 0,1 % of full scale
Transmitter supply
Off-load voltage 24,5 V
Voltage at 20mA 17,5 V
Current limit ~ 25 mA
Resistance thermometer inputs Pt100, Pt500, Pt1000 to DIN EN 60751
Measuring range -200 ... +850 °C
Connection method 2-, 3- oder 4-wire system
Resolution 16 Bit
Accuracy 0,6 K
Smallest measuring spans 20 K
Max line resistance 1) 10 Ohm/cable
Sensor supply 310 µA
1) With 2-conductor the line resistance comes as an offset into the measurement.
Resistance thermometer inputs Ni100, Ni500, Ni1000 to DIN EN 43760
Measuring range -60 ... +230 °C
Connection method 2-, 3- oder 4-wire system
Resolution 16 Bit
Accuracy 0,6 K
Smallest measuring spans 20 K
Max line resistance 1) 10 Ohm/cable
Sensor supply 310 µA
1) With 2-conductor the line resistance comes as an offset into the measurement.
Relay outputs A/B
Contact type Potential free changeover
Max. AC-breaking capacity 250 V AC, 2 A AC, 50Hz
Max. DC-breaking capacity 50 V DC, 2 A DC
Switching operations
Mechanical 107
AC: 230V / 2A, cos(phi)=1 6 * 105
AC: 230V / 2A, cos(phi)=0,4 2 * 105
DC: 24V / 1A 2 * 105
Transmission behaviour
Rise time 500 ms (output auf 90 %)
Temperature influence +/- 100 ppm/K of full scale
Supply
Voltage range AC 50 ... 253 V AC, 50/60 Hz
Nominal voltage AC 230 V AC
Voltage range DC 20 ... 253 V DC
Nominal voltage DC 24 V DC
Power consumption AC / DC 4 VA / 2,4 W
Housing
Dimensions (WxHxD) 23x110x134 mm
With operating module (bxhxt) 23x110x138 mm
Type of protection IP 20
Connection method Detachable terminal clamp
Terminals, wire cross section 2,5 mm² flex wire / 4 mm² one wire
Bolting torque terminals 0,5 Nm
Weight ~ 150 g
Manner of fastening 35 mm DIN rail 35mm
Environmental conditions
Ambient temperature -10 ... 50 °C
Storage and transport -10 ... 70 °C (no condensation)
EMC
Product family standard 1) EN 61326-1
Emitted interference EN 55011, CISPR11 Cl. B, Gr. 1
1)During electromagnetic disturbance minor changes in output signal are possible.
Electrical safety requirements
Product family standard EN 61010-1
Overvoltage category II
Pollution degree 2
Galvanic isolation, test voltages
Input/output 2,5 kV (1 min)
Signal/auxiliary voltage 3 kV (1 min)

Block and wiring diagram

AD-MK 350 GVD

Dimensions

AD-MK 350 GVD

We only use technically necessary cookies to improve the user-friendliness of our site.
Cookies for analysis and marketing purposes are not used!
You can find further information in our privacy policy.
made with ♡ by andres.media