Description
The G468 is a DIN rail mount, AC input signal conditioner with
1800VDC isolation between input, output and power. The field
configurable input and output offers flexible, wide ranging capa-
bility for scaling, converting or buffering AC inputs ranging from
5mA to 100mA or 50mV to 250V.
For AC current measurements above 100mA, use the model C006
shunt resistor (0.1 Ohm, 5Watt). This resistor must be wired in
series with the current source, with the G468 configured to
measure the voltage generated across the resistor (see Figure 3 for
an example).
The DC output of the G468 is proportional to the average of the
fully-rectified AC input signal, and is calibrated for sine waves
between 40-400Hz.
Application
The G468 is useful in applications requiring an isolated, condi-
tioned DC output from an AC signal. Typical applications include
energy management, load shedding, motor current/load monitor-
ing, locked rotor detection, isolation and data acquisition. The
output of the G468 can drive a digital meter for direct display or
it can interface with alarm or control devices, including PLCs and
computers.
Diagnostic LED
The G468 is equipped with a dual function LED signal monitor. The
green, front mounted LED indicates both DC power and input
signal status. Active DC power is indicated by an illuminated LED.
If the input signal is more than 110% of the full scale range, the LED
will flash at 8Hz. Below -10%, the flash rate is 4Hz.
ULTRA SLIMPAK®
G468-0001
AC Input Field Configurable Isolator
Provides an Isolated DC Output
in Proportion to an AC Input
Field Configurable Input Ranges: 50mV to 250VAC,
5mA to 5A AC
Eliminates Ground Loops
Field Configurable Outputs: 0-5V, 0-10V, 0-1mA,
0-20-mA and 4-20mA
G468-0001
Ultra Slim Housing for High Density Installations
Flexible Power Supply Accepts 9 to 30 VDC
ASIC Technology for Enhanced Reliability
RoHS Compliant
Configuration
The G468 has 15 input range switch settings. Trim potentiometers
allow 50% input zero and span adjustablity within each of the 15
fullscale, input ranges.
Since the unit has 50% adjustability, it can be ranged so that any
100 volt input span can create the full output (e.g., 25 to 125Vac
= full output).
Unless otherwise specified, the factory presets the Model G468 as
follows:
Input Range: 0-500mVAC
Output: 4-20mA
The DC power input accepts any DC source between 9 and 30V;
typically a 12V or 24VDC source is used (see Accessories).
Refer to Tables 1 through 3 for the proper switch settings. With
power disconnected, use the switches (9 & 10) on SW1 to select
the input type (voltage or current), on SW2 to select the desired
output ranges, and (1-8) on SW1 to select the desired input range.
WARNING: Do not change switch settings with power applied.
Severe damage will result!
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V05
V001
V002
V052
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Table 1: G468 Input Ranges Table 2: G468 Output Ranges
Calibration
1. After configuring the DIP switches, connect the input to a
calibrated AC source. Connect the output to the device (or a load
approximately equivalent to the device) and apply power. Refer
to the Terminal Wiring Diagram (Figure 2).
Note: To maximize thermal stability, final calibration should be
performed in the operating installation, allowing approximately 1
to 2 hours for warm up and thermal equilibrium of the system.
2. Set the calibrator to the desired minimum and adjust the zero
potentiometer for the desired minimum output.
3. Set the calibrator to the desired maximum and adjust the span
potentiometer for the desired maximum output.
4. Repeat steps 2 and 3, if necessary for best accuracy.
Figure 1: G468 Factory Cal: 0-500mVAC, 4-20mA
Figure 3: A Typical Application - Load Monitoring
Using a Current Transformer and the G468
Note: All Ultra SlimPak modules are designed to operate in ambient
temperatures from 0 to 55
°
C when mounted on a horizontal DIN rail. If
five or more modules are mounted on a vertical rail, circulating air or
model HS01 Heat Sink is recommended. Refer to HS01 Technical
Bulletin (#721-0549-00) or contact the factory for assistance.
Figure 4: Mounting Multiple Modules
Figure 2: Wiring Diagram for G468
Ordering Information
Models & Accessories
Specify:
1. Model: G468-0001
2. Accessories: (see Accessories)
3. Optional Custom Factory Calibration; specify C620 with desired
inputand output ranges.
Accessories
SlimPak "G" series modules mount on standard TS32 (model MD02) or TS35
(model MD03) DIN rail. In addition, the following accessories are available:
HS01 Heat Sink
MD03 TS35 x 7.5 DIN rail
WV905 24VDC Power Supply (0.5 Amp)
H910 24VDC Power Supply (1 Amp)
H915 24VDC Power Supply (2.3 Amp)
MB03 End Bracket for MD03
C664 I/O Descriptive Tags
Specifications
Inputs:
Voltage:
Ranges: 100mV to 250VAC
Impedance: >100K Ohms
Overvoltage: 300VAC
Current:
Ranges:10mA to 100mA AC
Impedance: 20 Ohms, typical
Overcurrent: 200mAAC
Overvoltage: 60V peak
Frequency Range:
DC or 40 to 400Hz AC, factory
calibrated at 60Hz
Common Mode(Input to Ground):
1800VDC, max.
Zero and Span Range:
Zero Turn-Up: 50% of full scale range
Span Turn-Down: 50% of full scale range
Output:
Voltage:
Output: 0-5V, 0-10V
Source Impedance: <10 Ohms
Drive: 10mA, max. (1K Ohms, min. @ 10V)
Current:
Output: 0-1mA, 0-20mA, 4-20mA
Source Impedance: >100K Ohms
Compliance:
0-1mA; 7.5V, max. (7.5K Ohms, max.)
0-20mA; 12V, max. (600 Ohms, max.)
4-20mA; 12V, max. (600 Ohms, max.)
LED Indicator (green):
8Hz flash when input is 110% of full scale
range
4Hz flash when input is 10% below full
scale range
Accuracy (Including Linearity, Hysteresis):
+0.1% of span, typical
+0.5% of span, maximum
Stability:
+0.025%/°C of selected input span, typical.
Response Time (10 to 90%):
250mSec., typical.
Common Mode Rejection:
DC to 60Hz: 120dB
Isolation:
1800VDC between input, output & power.
EMC Compliance (CE Mark):
Emmissions: EN50081-1
Immunity: EN50082-2
Safety: EN50178
Humidity (Non-Condensing):
Operating: 15 to 95% @ 45°C
Soak: 90% for 24 hours @ 65°C
Temperature Range:
Operating: 0 to 55°C (32 to 131°F)
Storage: -25 to 70°C (-13 to 158°F)
Dimensions
Eurotherm, Inc
741-F Miller Drive
Leesburg, VA 20175-8993
703-443-0000
info@eurotherm.com or www.eurotherm.com/actionio
Factory Assistance
For additional information on calibration, operation and installation
contact our Technical Services Group:
703-669-1318
721-0658-00-F 09/06 Copyright© Eurotherm, Inc 2006
Action Instruments Barber-Colman Chessell Continental Eurotherm
actionsupport@eurotherm.com
Power:
Consumption: 1.5W typical, 2.5W max.
Range: 9 to 30VDC
Wire Terminations:
Screw terminals for 12-22 AWG
Weight:
0.48 lbs.
Agency Approvals:
CSA certified per standard C22.2, No. 0-M91
and 142-M1987 (File No. LR42272).
UL recognized per standard UL508
(File No.E99775).
CE Compliance per EMC directive 89/336/EEC
and Low Voltage 73/23/EEC.
RoHS Compliant
