Transmitters PLUG-IN AC Input JH6020IR (True RMS Current)
Monday, 06 June 2011 04:05 Last Updated on Monday, 29 August 2011 00:54 Written by Administrator

AC INPUT TRANSMITTERS
PLUG-IN MODULES, FIXED RANGE

JH6010I: AC Voltage Input, Isolated
JH6010IR: AC Voltage Input, Isolated, with True RMS Response
JH6020I: AC Current Input, Isolated
JH6020IR: AC Current Input, Isolated, with True RMS Response

The JH6010I/6020I series provides an isolated DC output proportional to an AC voltage or current input. Applications range from power monitoring to millivolt-level AC signals from sensors. Input/output isolation is standard to guard against shock hazards in power measurements and against ground loop errors.

The standard transmitter is average responding, calibrated to provide accurate RMS readings with sine wave inputs. Accuracy is better than 0.5% of span, but will be degraded with nonsinusoidal waveforms such as from SCR/Triac speed and power controllers or pulse-modulated motor drives. For accurate readings with nonsinusoidal waveforms use the true-RMS style.

Red-green Quick-Check LEDs give a quick indication of the relative output. Red is brighter at the low end, green at high, while at mid-scale both are approximately equal. Red-only indicates offscale low while green-only indicates offscale high.

Available options include AC or DC power choices and reverse-action Option RT (decreasing output with increasing input).

ORDERING INFORMATION
Model Number:   Select from the list above.  Add suffix -AC for AC power or -DC for DC power.
Input Range: Specify any AC voltage or current range allowed by the "Input Capabilities" spec, below.
Output Range:   Specify any DC voltage or current range allowed by the "Output Capabilities" spec, below.
Power: Specify 115Vac, 230Vac, 12Vdc, or 24Vdc.
Reverse-Acting Transmitter:   Decreasing output with increasing input.  Specify option RT.
Loop-Powered Output: 4/20 mA "current sink" output stage for connection to devices whose inputs provide 24 Vdc loop excitation.  Specify Option LPO.
Urethane Coating:  

Specify Option "U"

INSTALLATION AND CONNECTIONS

These transmitters plug into any standard 8-pin circular ("octal") relay socket. JH Technology offers a socket suitable for DIN-rail or surface mounting  (see the Accessories page). Pin connections are:

Pin 1: Power (AC or, if DC power option, DC plus).
Pin 2: No connection.
Pin 3: Power (AC or, if DC power option, DC minus).
Pin 4: No connection.
Pin 5: AC signal input.
Pin 6: AC signal input.
Pin 7: Output plus.
Pin 8: Output minus.

APPLICATION NOTE – CURRENT TRANSFORMER INPUTS

When monitoring the output of a current transformer never use current-input Model JH6020I. Unplugging the module will remove the transformer’s secondary load, resulting in potentially damaging or dangerous voltage spikes (up to several hundred volts).

Instead, use voltage-input Model JH6010I with an appropriate precision external shunt resistor. For 0/5 amps we recommend specifying a 0/250mVac input range with a 0.05 ohm, 0.1% 3 watt external shunt. We offer Part No. R0.05/DS008, a precision shunt resistor assembly preassembled to socket DS008. The socket snaps onto DIN rail or may be surface mounted using screws.

DETAILED SPECIFICATIONS
Voltage Input Capabilties (Model JH6010I):   50mV Vac minimum span, 250Vac maximum input.  Offset ranges are allowed.
(Input Impedance:  200kOhms or greater.)
Current Input Capabilities (Model JH6020I):  1mAac minumum span, 5 Amps ac maximum input.  Offset ranges are allowed.  
(Input Resistance:  Varies with input range.  Contact factory for details.
(Warning-see application note above regarding current transformer inputs.) 
Input Frequency:   40 to 1,000 Hz for specified accuracy.
Voltage Output Capabilities: 1 volt minumum output span, -10 to +15V absolute limit.  Positive offsets are allowed.  Maximum output lowad, 10mA (1Kohm at 10V output).
Current Output Capabilities: 1mA minimum output span, 1 to +25mA absolute limit.  Positive offsets are allowed, negative outputs are not.  Output drive capability, 24V (1,200 ohms max. at 20mA output).
Accuracy (factory calibration): +/-0.5% of span or better.
Adjustability:   Zero and span each are adjustable approx. +/-15% of span.
Response Time:   Under 200 milliseconds.
Isolation:  Power, 1,500Vac rms (2,100V peak).  Input/Output, 1,000Vac rms (1,400V peak).
Guaranteed Operating Temperature: -10 to +60 deg. C (14 to 140 deg. F).
Temperature Stability: +/-0.02% of span per deg. C, or better.
Power Requirements:   AC, 115 or 230Vrms, 50/60Hz, 2.5V-A.  DC, 12 or 24V, 2.5W.