Ohmart Vega W-4510, Техническое руководство по аппаратному обеспечению, Страница: 21 / 162

Introduction
4 W-4510 Weigh Scale Technical Reference Manual
Specifications
Table 3: Specifications list
System
Accuracy
±
1% of span typical Accuracy depends on specific application parameters
Typical
Sources Cesium-137 0.66MeV gamma radiation emitter, 30.2 year half life
AC 115VAC
±
10% 50 or 60Hz, at 65 Watts maximum power consumption Power
Requirements* Wiring
#14–#22AWG (1.63–0.643mm)
Signal Cable Maximum length 5,000 feet (1,500 meters)
Indicator On/Off light indicator
Calibration absorber Self-contained calibration absorber
Material Steel construction
Weight 450lbs
Source
Housing
Paint Epoxy Powder Coat
Enclosure rating NEMA 4X
Ambient temperature –40°F to 140°F (–40°C to 60°C)
Humidity 0–95%, non-condensing
Material Aluminum
Weight
≅
100lbs
W-4510
Detector
Housing
Paint Epoxy Powder Coat
Input Signal input channels Two digital (frequency) 0–32kHz opto-isolated
Analog inputs Voltage or current, 0–0.1VDC into 1megaohm, 0–1.0VDC into 1megaohm,
0–10VDC into 1megaohm, 0–1.0mA into 10kohm, 1–5mA into 2kohm,
4–20mA into 500ohm, 10–50mA into 200ohm
TTL Logic level input
channels Six TTL input channels, voltage-free contacts from relay or switch, contact
loading 5V at 5milliamperes, maintain contact for one second (minimum)
Output Relay 4 SPDT (4 form C) contacts: 2A–120VAC, 2A–28VDC, 1A 250VAC, CSA
version ratings: 0.6A–125VAC, 0.6A–110VDC, 2.0A at 30VDC
TTL logic level Five open-collector transistor type capable of sinking 300mA (max) and
30V (max) resistive load, or 20V (max) inductive load and one
configurable to be isolated. If using a TTL for a totalizer, the max rate is 10
pulses per second.
Analog channels Two 0–20mA into 0-1,000ohms, or 4–20mA into 0–1,000ohms, 0–
100mVDC into 20kohms (min). Both sides of output are isolated from input
and ground. Ground either side. Meets ISA Standard 50.1: Type 4, Class
U isolated current loop transmitters.
Serial ports Serial ports for local display and keypad, remote displays, and host
interface. Two full and two partial RS-232C ports, or one partial RS-232C
port and one partial RS-422/485 port, and individual settings from 300
baud–19,200 baud.
Signal Processing
capabilities
Capabilities include: Linearization, display process measurement in
product units, generate high and low process alarms, filtering digital or
classic RC time constant, source decay compensation, and temperature
compensation.
Electronics On-board memory EEPROM and battery-backed RAM
Real-time clock Maintains time, date, and source decay compensation. Y2K compliant
Diagnostics LED indication +5V, Memory Corruption, CPU Active, Auxiliary, and High Voltage