B6494

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WIKA · Force measurement · Family B6494

Industrial mV/V measuring instrument

Name: Industrial mV/V measuring instrument
Brand: WIKA

Industrial mV/V measuring instrument with dual display and digital I/O for panel mounting

Output

0 ... 20 mA and DC 0 ... 10 V

Accuracy

0.005%

Protection

IP65

CECISPR 11 class AEN 61326-1CISPR11 class AEN61326-1

Price

On request

Depends on configuration

Request a quote

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Description

The B6494 industrial measuring instrument for panel mounting is suitable, through its accuracy and easy readability, for numerous applications. Via the two 6-digit digital multi-function displays, the measured values and the status of the transistor outputs are indicated.

The connection and the parameterisation are usually performed by the customer for this model. Programming the instrument is menu-driven. All strain gauge measuring bridges (maximum 4 x 350 Ω parallel) with an output signal up to a max. ±4.0 mV/V can be connected.

Industrial mV/V measuring instrument, model B6494

The internal sensor supply is DC 5 V. Requests and parameterisation of different values are possible via the serial interface. The 4 transistor outputs enable the dropping below or exceeding of limit values to be monitored. In addition, a 0/4 ... 20 mA and a DC 0 ... 10 V output signal are available for analogue evaluation. Interfering signals can be eliminated by filter settings.

Special features

Dual mV/V display
2x digital input and 4x digital output
Integrated multiple signal outputs available
Serial interface, RS-232 or RS-485
Ingress protection IP65

Identification

Model	B6494
Subcategory	Measuring instrument

Accuracy

Accuracy class

0.005%

Process conditions

Process temperature	+18…+28 °C
Mounting type	Panel mounting

Electrical characteristics

Output signal

0 ... 20 mA and DC 0 ... 10 V

Operating environment

Ambient temperature	−10…+40 °C
IP rating	IP65
Weight	0.44 kg

Certifications and approvals

Certifications

CECISPR 11 class AEN 61326-1

Additional details

Datasheet languages

Tables from datasheet

Model B6494
Input signal	4 x 350 Ωsensor 4- or 6-wire
Sensitivity	0 ...39mV
Display	6-digit and 2-line display, readable in sunlight, 10 or 13 mmhigh respectively Output max. -99,999 to +999,999 digits Refresh rate 1 to 20 updates/s
Sensor supply	DC 5V
Accuracy	Display value:0.005% Analogue output:0.005%
Linearisation	Number of linearisation steps: Selectable from 2 to 16 Scale range: -99,999 to 999,999 Decimal point: 0 to 0.0000
Rated temperature range	18…28°C
Service temperature B T, G	-10 …+40 °C
Storage temperature range	-40 …+60 °C
Analogue output	0 ... 20 mAand DC 0 ...10V
Serial interface	RS-232 Parameterisable baud rate 600 ... 57,600	RS-485 Parameterisable baud rate 600 ... 57,600
Digital output	4 transistor outputs
Digital input	2 programmable user inputs Maximum voltage:DC 24V Settling time: 20 ms
Resolution	16-bit A/D converter
Sampling rate	120 Hz / 240 Hz / 480 Hz / 960 Hz
Supply voltage	DC 12 ...36V,6W
Response time	≤10 ms
Ingress protection (per IEC/EN 60529)	IP65
Interference emission	CISPR 11 class A
Immunity	EN 61326-1 immunity for industrial areas
Common-mode rejection (CMR)	> 100 dB, DC to 120 Hz
Relative humidity	Max. 85 %r.h., non-condensing
Weight	0.44 kg

Display	Description
RUN	Instrument is in operation
ZERO	Weighing value is zero
MOTION	Dynamic weighing process
GROSS	Total weight (gross weight)
NET	Net weight
ALARM	Alarm signal (Error display)
IN1	Digital input 1
IN2	Digital input 2
OUT1	Digital output 1
OUT2	Digital output 2
OUT3	Digital output 3
OUT4	Digital output 4

Sensor cabling

Terminal	Meaning
1	+EXC	Sensor supply +
2	+SIG	Output signal +
3	GND(SHLD)	Shield
4	-SIG	Output signal -
5	-EXC	Sensor supply -

Communications and analogue output

Pin	Connections
1	AN+	Analogue output +
2	AN-	Analogue output -
3	TXD	COM1 RS-232 sender
4	RXD	COM1 RS-232 receiver
5	GND(SHLD)	COM1 RS-232GND
6	485A	COM2 RS-485 +
7	485B	COM2 RS485 -

View all (6)

Power supply

Pin	Connections
1	0V	Supply voltage DC 0V
2	NC	nicht verbunden
3	+24V	Supply voltage DC 24V

I/O interface

Pin	Connections
1	IN1	Digital input 1
2	IN2	Digital input 2
3	Com	Input ground
4	OUT1	Switching output 1
5	OUT2	Switching output 2
6	OUT3	Switching output 3
7	OUT4	Switching output 4
8	Com	Output ground