Model VT 400

Revere

Weight Controller/Indicator

FEATURES
• Inventory and batching control terminal
• High sample rate, up to 70 samples per second
• Up to two serial ports with printing and networking
(one standard)
• Analog output (optional)
• Two opto-isolated weight setpoints
• Large 6 digit LED display
• Alibi (Flash) memory for last 10,000 transactions
• OIML R-76 approved to 10000d
• Panel mount IP40 enclosure
• IP54 front panel cover (optional)
• Input power 24VDC

APPLICATIONS
DESCRIPTION
• Process weighing
VT 400 Weight Controllers provide weighing and control
functions for industrial process systems. • Inventory control
Two opto-isolated control outputs, a choice of up to two OPTIONS
serial interfaces (RS-232 and RS-485) and an analog output
(optional) allow full communication with higher level PCs or • Analog output
PLCs. Up to 30 units can be interconnected through the • RS-485 port
RS-485 network. • Second RS-232 port
The standard VT 400 panel mount enclosure is rated IP40.
However, it can be upgraded with an IP54 front panel cover
(optional).

CONFIGURATION

www.vishaypgloadcells.com Technical contact in Americas: lc.usa@vishaypg.com, Europe: lc.eur@vishaypg.com, Document Number: 11639
324 China: lc.china@vishaypg.com, Taiwan: lc.roc@vishaypg.com Revision: 14-Jun-10
 Model VT 400
Weight Controller/Indicator Revere

SPECIFICATIONS
PERFORMANCE ELECTRICAL
Resolution: selectable up to 990,000 dd Voltage: 24VDC
Conversion Speed: 3 - 70 samples per second (selectable) Current: 500mA
Sensitivity: 0.4µV/Vsi for approved scales, ISOLATED ANALOG OUTPUT (OPTIONAL)
0.1µV/Vsi for non-approved scales. Resolution: 16 bit DAC
Full Scale Range: -0.25 to 1.75mV/V [-1.25mV to 8.75mV] or Voltage Output: 0.02-10V
-0.25 to 3.75mV/V [-1.25mV to 18.75mV] Current: 0-20mA or 4-20mA
Linearity: 0.002% of full scale Linearity: 0.01% (or better) of full scale
Long Term Stability: 0.005% of full scale per year Thermal Stability: 50ppm/°C typical
Excitation: +5V alternating polarity or +5VDC INPUTS & OUTPUTS
(selectable), with sense (6 wires) (x1) Logic Input: 9-24VDC, negative common,
Number of Cells: Up to 10, 350 ohm load cells opto-isolated to 2.5KV.
Filter: FIR automatically adjusted to (x2) Logic Output: 24VDC±10%, positive common, max
conversion speed, rolling average. current 100mA, opto-isolated to 2.5KV,
Offset Drift: < 2ppm/°C programmable as weight setpoints
Span Drift: < 2ppm/°C SERIAL COMMUNICATION
A/D Converter Type: Sigma-Delta, ratiometric Serial Output #1: RS-232, non-programmable
Count By: x1, x2, x5, x10, x50 Baud Rate: 2400 baud, full duplex
Decimal Point: between any digits of the weight display Applications: continuous, print (on demand), alibi print
Calibration Methods: dead load and span, or data sheets Serial Output #2: RS-232 or RS-485 setup programmable
calibration, via the mV/V output Baud Rate: 2400 - 57800 baud, half duplex
values of the load cell. Applications: EDP and master-slave protocols,
Weighing Functions: automatic zero tracking, motion continuous output, remote printer,
detection, auto-zero on power-up, weight output
zero tare, multiple test functions.
ENCLOSURE
Memory Allocation: calibration data EEPROM (32kb), Flash
Heavy duty plastic enclosure:
tally-roll (Alibi) memory capable of Dimensions: 144x72x132mm LxHxD
10,000 weight registrations (64kb)
[5.7x2.8x5in. LxHxD]
ENVIRONMENTAL Mounting: panel mount
Operating Temp: -10°C to +40°C [14°F to 104°F] Protection: IP40 standard,
Storage Temp: -10°C to +70°C [-4°F to 158°F] optional front panel cover - IP54
Relative Humidity: 40-90% RH, non-condensing Wiring Connections: mini D-type connectors
DISPLAY AND KEYBOARD APPROVALS (ACCURACY CLASS III/IIIL)
Display: 6 digit, 7 segment, LED OIML R-76: 10000d single or dual interval
Digital Height: 14mm [0.55in.] EU-type approval no. DK0199.62
Status Enunciators: no motion, zero, tare in use, net, setpoint
in operation
Weight Digits: 4, 5 or 6 (setup selectable) Transducers is continually seeking to improve product quality and
Keyboard: 6 membrane keys, with tactile feedback performance. Specifications may change accordingly.

Document Number: 11639 Technical contact in Americas: lc.usa@vishaypg.com, Europe: lc.eur@vishaypg.com, www.vishaypgloadcells.com
Revision: 14-Jun-10 China: lc.china@vishaypg.com, Taiwan: lc.roc@vishaypg.com 325
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