JH4003I: Potentiometer Input, Input/Output Isolated
Model JH4003I provides a DC output proportional to the position of a potentiometer or slidewire wiper. A fixed-range device, it is factory set, but you may specify 0/100% input travel or any expanded range covering a 10% or wider portion of the travel.
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 input/output isolation (Model JH4003I), AC or DC power choices and reverse-action Option RT (decreasing output with increasing input).
Select JH4003I -AC for AC power, or JH4003I-DC for DC power.
It is not necessary to specify the potentiometer’s resistance. Just make sure it is no less than 100 ohms nor more than 100Kohms.
Specify 0/100%, or any 10% or wider portion of the travel (for example, 60/70%).
Specify any DC voltage or current range allowed by the "Output Capabilities" spec, below.
Specify 115Vac, 230Vac, 12Vdc or 24Vdc.
Specify Option RT.
4/20mA "current sink" output stage for connection to devices whose inputs provide 24Vdc loop excitation. Specify Option LPO.
Specify Option U
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: Potentiometer ccw (0% travel).
Pin 5: Potentiometer wiper.
Pin 6: Potentiometer cw (100% travel).
Pin 7: Output plus.
Pin 8: Output minus.
May be any resistance between 100 ohms and 100Kohms. It is not necessary to specify the potentiometer resistance on your order: end-to-end resistance does not affect the calibration.
0 to 100% travel, or any 10% or wider portion of the travel (for example, 35/45%).
1 volt minimum output span, -10 to +15V absolute limit. Offset ranges are allowed. Maximum output load, 10mA (1Kohm at 10V output).
1mA minimum output span, 0 to +25mA absolute limit. Positive offsets are allowed, negative outputs are not. Output drive capability, 24V (1,200 ohms max. at 20mA output).
+/-0.1% of span, or better.
Zero and span each are adjustable approx. +/-15% of span.
+/-0.05% of span or better.
Under 100 milliseconds.
Power, 1,500Vac rms (2,100V peak). Input/Output 1,000Vac rms (1,400V peak).
-10 to +60 deg. C (14 to 140 deg. F).
+/-0.02% of span per deg. C, or better.
AC, 115 or 230Vrms, 50/60Hz, 2.5V-A. DC, 12 or 24V, 2.5W.